When people are asked “Do you have the time?” they can answer in a variety of ways, such as “It is almost 3”, “Yeah, it is quarter past two”, or more precisely as in “It is now 1:43”. We present the results of four experiments that examined people’s real-life answers to questions about the time. Our hypothesis, following previous research findings, was that people strive to make their answers optimally relevant for the addressee, which in many cases allows people to (...) give rounded, and not exact, time responses. Moreover, analyses of the non-numeral words, hesitations, and latencies of people’s verbal responses to time questions reveal important insights into the dynamics of speaking to achieve optimal relevance. People include discourse markers, hesitation marks, like “uh” and “um”, and pauses when answering time questions to maximize the cognitive effects (e.g., a rounded answer is adequate) listeners can infer while minimizing the cognitive effort required to infer these effects. This research provides new empirical evidence on how relevance considerations shape collaborative language use. (shrink)

Justificatory defenses apply to actions that are generally wrong and illegal—mainly since they harm people—when they are justified—usually since they prevent harm to others. A strict conception of justification limits justificatory defenses to actions that reflect all pertinent principles in the optimal manner. A more relaxed conception of justification applies to actions that do not reflect all pertinent principles optimally due to mistake but are not too far from this optimum. In the paper, I consider whether justificatory defenses should (...) reflect the strict conception of justification or a more relaxed conception of justification. This question is important since often the relevant actions are not strictly justified, while the alternative of an excuse is frequently irrelevant or does not provide an appropriate solution. Reflection on this question raises the following dilemma: On the one hand, the strict interpretation seems too harsh, especially with regard to legal liability. On the other hand, it is difficult to explain the basis for a more relaxed conception of justification. I conclude, first, that justification—and accordingly wrongfulness—is a matter of degree and that the strictly justified action is merely the peak of a continuum, and, second, that a practical reaction is in place only with regard to actions whose wrongness is above a minimal threshold. (shrink)

On the basis of analyzing the complexity of railway flatcar loading optimization problem, according to the characteristics of railway flatcar loading, based on the situation of railway transport loading unit of multiple railway flatcars, this study puts forward the optimal loading optimization method of multimodel railway flatcars based on improved genetic algorithm, constructs the linear programming model of railway flatcar loading optimization problem, and combines with the improved genetic algorithm to solve the problem. The study also analyzes the structural (...) characteristics of the optimal loading materials of multimodel railway flatcars, selects the optimal materials and inputs the relevant data into the computer, and uses MATLAB to program the optimal loading algorithm of multimodel railway flatcars. Through the analysis of the calculation example, the study discusses its scope of application. The experimental results show that the average general utilization rate of the proposed method is 73%, which has higher universality, more effective application, and fully meets the research requirements. It is verified that the proposed method has a statistically significant impact on the optimal loading of multi-type railway flatcars. (shrink)

This article studies the cognitive and communicative effects of typographical iconicity in poetry from the perspective of relevance theory. It argues that the visual aspect pertaining to an instance of typographical iconicity conveys a sensory impression, which perceptually resembles elements of the semantic material represented via the typographical iconicity’s lexical aspect. It is suggested that the non-propositional information relating to this impression can trigger the derivation of a wide array of weak implicatures which can combine to form an impressionistic (...) and indeterminate cognitive state described within relevance theory as a poetic effect. Furthermore, since the added effort, which the typographical iconicity requires to be perceived and processed, is offset by the derived implicatures, the use of typographical iconicity may be said to produce an optimally relevant level of processing. (shrink)

In this paper I examine the role of optimality reasoning in Aristotle’s natural science. By “optimality reasoning” I mean reasoning that appeals to some conception of “what is best” in order to explain why things are the way they are. We are first introduced to this pattern of reasoning in the famous passage at Phaedo 97b8-98a2, where (Plato’s) Socrates invokes “what is best” as a cause (aitia) of things in nature. This passage can be seen as the intellectual ancestor of (...) Aristotle’s own principle, expressed by the famous dictum “nature does nothing in vain but always what is best for the substance from among the possibilities concerning each kind of animal” (Progression of Animals II, 704b12-18). The paper is focused around exploring three questions that arise in connection with Aristotle’s use of this optimality principle: (1) How do we understand the concept of “the best” at work in the principle? (2) How does Aristotle conceive of “the range of possibilities”? And, finally, (3) what role does optimality reasoning play in Aristotle’s natural science? Is it a special form of demonstration in which the optimality principle functions as one of its premises, or is it a heuristic device that helps uncover those causally relevant features of a natural substances that ultimately serve as middle terms in demonstrations? In the final section I return to the comparison between Plato and Aristotle and argue that, while both see the natural world as the product of an optimizing agent and while both see this assumption as licensing a pattern of reasoning that appeals to a certain conception of “the best”, they disagree fundamentally over what the optimization agent is and how it operates. Thus, despite their general agreement, it would be a mistake to think that Aristotle simply took over Plato’s use of optimality reasoning without significant modifications. (shrink)

The Enhanced Indispensability Argument appeals to the existence of Mathematical Explanations of Physical Phenomena to justify mathematical Platonism, following the principle of Inference to the Best Explanation. In this paper, I examine one example of a MEPP—the explanation of the 13-year and 17-year life cycle of magicicadas—and argue that this case cannot be used defend the EIA. I then generalize my analysis of the cicada case to other MEPPs, and show that these explanations rely on what I will call ‘ (...) class='Hi'>optimal representations’, which are representations that capture all that is relevant to explain a physical phenomenon at a specified level of description. In the end, because the role of mathematics in MEPPs is ultimately representational, they cannot be used to support mathematical Platonism. I finish the paper by addressing the claim, advanced by many EIA defendants, that quantification over mathematical objects results in explanations that have more theoretical virtues, especially that they are more general and modally stronger than alternative explanations. I will show that the EIA cannot be successfully defended by appealing to these notions. (shrink)

asked individuals to make predictions about the duration or extent of everyday events (e.g., cake baking times), and reported that predictions were optimal, employing Bayesian inference based on veridical prior distributions. Although the predictions conformed strikingly to statistics of the world, they reflect averages over many individuals. On the conjecture that the accuracy of the group response is chiefly a consequence of aggregating across individuals, we constructed simple, heuristic approximations to the Bayesian model premised on the hypothesis that individuals (...) have access merely to a sample of k instances drawn from the relevant distribution. The accuracy of the group response reported by Griffiths and Tenenbaum could be accounted for by supposing that individuals each utilize only two instances. Moreover, the variability of the group data is more consistent with this small‐sample hypothesis than with the hypothesis that people utilize veridical or nearly veridical representations of the underlying prior distributions. Our analyses lead to a qualitatively different view of how individuals reason from past experience than the view espoused by Griffiths and Tenenbaum. (shrink)

We study the uncertain dichotomous choice model. In this model a set of decision makers is required to select one of two alternatives, say ‘support’ or ‘reject’ a certain proposal. Applications of this model are relevant to many areas, such as political science, economics, business and management. The purpose of this paper is to estimate and compare the probabilities that different decision rules may be optimal. We consider the expert rule, the majority rule and a few in-between rules. The (...) information on the decisional skills is incomplete, and these skills arise from an exponential distribution. It turns out that the probability that the expert rule is optimal far exceeds the probability that the majority rule is optimal, especially as the number of the decision makers becomes large. (shrink)

Making proper decisions in today’s complex world is a challenging task for decision makers. A promising approach that can support decision makers to have a better understanding of complex systems is agent-based modeling. ABM has been developing during the last few decades as a methodology with many different applications and has enabled a better description of the dynamics of complex systems. However, the prescriptive facet of these applications is rarely portrayed. Adding a prescriptive decision-making aspect to ABM can support the (...) decision makers in making better or, in some cases, optimized decisions for the complex problems as well as explaining the investigated phenomena. In this paper, first, the literature of DM with ABM is inquired and classified based on the methods of integration. Performing a scientometric analysis on the relevant literature lets us conclude that the number of publications attempting to integrate DM and ABM has not grown during the last two decades, while analysis of the current methodologies for integrating DM and ABM indicates that they have serious drawbacks. In this regard, a novel nature-inspired model articulation called optimal agent framework has been proposed to ameliorate the disadvantages and enhance the realization of proper decisions in ABM at a relatively low computational cost. The framework is examined with the Bass diffusion model. The results of the simulation for the customized model developed by OAF have verified the feasibility of the framework. Moreover, sensitivity analyses on different agent populations, network structures, and marketing strategies have depicted the great potential of OAF to find the optimal strategies in various stochastic and unconventional conditions which have not been addressed prior to the implementation of the framework. (shrink)

The paper discusses the theory of relevance, advanced in the middle of the 1980s by Dan Sperber and Deidra Wilson, in the context of opposition between the proponents of “ideal language philosophy”, or formal semantics, and adherents of “ordinary language philoso­phy”. Though the theory was created as a version of cognitive pragmatics, an area at the junction of cognitive sciences and theoretical linguistics, it is of undoubted interest for philosophical comprehension of language, verbal communication, and the nature of meaning. (...) Treating verbal communication as a cognitive process, Sperber and Wilson for­mulate the two most important principles underlying the process – the cognitive principle of relevance and the communicative principle of relevance. The paper explains the basic notions of the theory – ostensive communication, informative and communicative inten­tions, optimal relevance, explicature; it reveals the advantages that the authors of the the­ory see in the “inferential” model of communication over the “code” model and discusses how they present the process of understanding a speaker’s utterance by a hearer on the “implicit” and “explicit” levels and what role in the process they ascribe to pragmatic inferences. The account of the relevance theory is accompanied by its comparison with the picture of verbal communication elaborated by Paul Grice, and it is shown that though Sperber and Wilson make a start from Grice’s ideas in many respects, they intro­duce significant alterations and so they are regarded as representatives of post-Gricean pragmatics. In conclusion, it is examined how, according to the relevance theory, the se­mantics/pragmatics distinction should be drawn. It is discussed how the proposed deci­sion alters the understanding of the nature of meaning and what consequences it has for philosophy. (shrink)

The South China Sea territorial dispute has been a contentious issue in the international community. In the course of 3 years, China and the Philippines had undergone arbitral proceedings over the maritime rights and entitlements in the South China Sea. As the Permanent Court of Arbitration reached its decision, this paper aims to examine the interpretation process of the Arbitral Tribunal in the judgment of the South China Sea conflict between China and the Philippines. The primary objective of the study (...) is to reconstruct or explain how the Tribunal came up with its interpretation of the written arguments presented by the parties involved and to distinguish whether such reconstruction the Tribunal has successfully interpreted or made sense of the said arguments and submissions. Doing so would necessitate a pragmatic analysis– the relevance-theoretic account of human communication and cognition. Data analyzed include written submissions and arguments as well as the legal documents used during the arbitral process. Using content analysis, the data were evaluated through applying the tool of interpretation based on the criteria set by the three conditions of the relevance theory: logical condition, pragmatic condition, and condition of optimal relevance. This paper argues that in order for the addressee of an utterance, in this case the Arbitral Tribunal, to attain a successful interpretation, it should meet these three conditions. This study found that the reconstruction of the interpretation based on the three conditions showed that the Tribunal had attained a valid and correct interpretation of the Philippines’ and China’s arguments. Furthermore, the paper asserts that implied conclusion and the contextual assumptions can be a guiding principle for the cognitive comprehension or interpretation of legal texts. (shrink)

Someone asked ‘What time is it?’ when her watch reads 3:08 is likely to answer ‘It is 3:10.’ We argue that a fundamental factor that explains such rounding is a psychological disposition to give an answer that, while not necessarily strictly truthful or accurate, is an optimally relevant one (in the sense of relevance theory) i.e. an answer from which hearers can derive the consequences they care about with minimal effort. A rounded answer is easier to process and may (...) carry the same consequences as one that is accurate to the minute. Hence rounding is often a way of optimising relevance. Three simple experiments give support and greater precision to the view that relevance is more important than strict truthfulness in verbal communication. (shrink)

It has been reported as a robust effect that people are likely to select a matching case in the Wason selection task. For example, they usually select the 5 case, in the Wason selection task with the conditional "if an E, then a not-5". This was explained by the matching bias account that people are likely to regard a matching case as relevant to the truth of the conditional (Evans, 1998). However, because a positive concept usually constructs a smaller set (...) than its negative one does (a rarity assumption), it is more effective to get information on the truth of the conditional in a positive set than in a negative set. Thus the optimal data selection account can also explain the effect. The set size of Q and matching by introducing negation were manipulated independently in four experiments. From the results it was inferred that the so-called matching bias was an amalgam of two different cognitive components-relevance judgement by matching and optimal data selection. (shrink)

Focusing on the discovery of weak currents, the current debate on the theory-ladenness of observation in modern physics might be too narrow, as it concerns only the last stage of a complex experimental process and statistical methods required to analyze data. The scope of the debate should be extended to include broader experimental conditions that concern the design of the apparatus and different levels of the detection process. These neglected conditions often decisively delimit experiments long before the last stage has (...) been reached, thus predetermining the extent of the dependence of data production on the theory. I explain the nature of these conditions and the theory-ladenness tendencies they produce, noting how they affect the last stage of the data analysis and providing some relevant examples. (shrink)

This paper explores the trade-off between cognitive effort and cognitive effects during immediate metaphor comprehension. We specifically evaluate the fundamental claim of relevance theory that metaphor understanding, like all utterance interpretation, is constrained by the presumption of optimal relevance (Sperber and Wilson, 1995, p. 270): the ostensive stimulus is relevant enough for it to be worth the addressee’s effort to process it, and the ostensive stimulus is the most relevant one compatible with the communicator’s abilities and preferences. (...) One important implication of optimal relevance is that listeners follow a path of least effort and stop processing at the first interpretation that satisfies their expectation of relevance. They do this by trying to minimize cognitive effort while maximizing cognitive effects. Some relevance theory scholars suggest that metaphors should require additional cognitive effort to be understood, and that in return they yield more cognitive effects than does literal speech. Others claim that metaphors may be understood quickly, as soon as people infer enough effects for the speaker’s utterance to meet their expectation of optimal relevance. Our analysis of the experimental evidence suggests that there is no systematic relationship between cognitive effort and cognitive effects in metaphor comprehension. We conclude that relevance theory need not make any general predictions about the effort needed to comprehend metaphors. Nevertheless, relevance theory is consistent with many of the findings in psycholinguistics on metaphor understanding, and can account for aspects of metaphor understanding that no other theory can explain. (shrink)

A necessary condition for a group being taken as a rational agent is that its choices and judgements are ‘logically contestable’, but this can lead to problems of aggregation, as Arrow impossibility theorem or the discursive dilemma. This paper proposes a contractarian or constitutional approach: the relevant thing is what aggregation mechanisms would be preferred by the members of the group. Two distinctions need to be made: first, judgement aggregation is not aggregation of decisions, and judgement aggregation needs be distinguished (...) from the aggregation of information: we assume that every member of the group has already taken into account the opinions of the other members, by means of a process of public deliberation, but they may end having different opinions; we also assume that the members are rational, so that they have no reasons to accept further changes in their individual opinions. So, from the epistemic point of view, the collective judgment is not a 'better' opinion than those of the individual members. The collective judgement is better seen as a kind of compromise, the outcome of a ‘bargain’, so to say. Basically, we assume that individuals will have an interest in choosing a specific aggregation function by taking into account how are they affected by the collective actions carried out by the group, and grounded on the chosen collective judgement. (shrink)

In this paper, we set out to develop a theoretical and conceptual framework for the new field of Radical Embodied Cognitive Neuroscience. This framework should be able to integrate insights from several relevant disciplines: theory on embodied cognition, ecological psychology, phenomenology, dynamical systems theory, and neurodynamics. We suggest that the main task of Radical Embodied Cognitive Neuroscience is to investigate the phenomenon of skilled intentionality from the perspective of the self-organization of the brain-body-environment system, while doing justice to the phenomenology (...) of skilled action. In previous work, we have characterized skilled intentionality as the organism's tendency toward an optimal grip on multiple relevant affordances simultaneously. Affordances are possibilities for action provided by the environment. In the first part of this paper, we introduce the notion of skilled intentionality and the phenomenon of responsiveness to a field of relevant affordances. Second, we use Friston's work on neurodynamics, but embed a very minimal version of his Free Energy Principle in the ecological niche of the animal. Thus amended, this principle is helpful for understanding the embeddedness of neurodynamics within the dynamics of the system “brain-body-landscape of affordances.” Next, we show how we can use this adjusted principle to understand the neurodynamics of selective openness to the environment: interacting action-readiness patterns at multiple timescales contribute to the organism's selective openness to relevant affordances. In the final part of the paper, we emphasize the important role of metastable dynamics in both the brain and the brain-body-environment system for adequate affordance-responsiveness. We exemplify our integrative approach by presenting research on the impact of Deep Brain Stimulation on affordance responsiveness of OCD patients. (shrink)

An animal confronts numerous challenges when constructing an optimal navigational route. Spatial representations used for path optimization are likely constrained by critical environmental factors that dictate which neural systems control navigation. Multiple coding schemes depend upon their ecological relevance for a particular species, particularly when dealing with the third, or vertical, dimension of space.

The relevance of nonlinear dynamics to calcium metabolism led us to reevaluate the role of Ca-regulating hormones in Ca homeostasis. We suggest that, firstly, the main Ca metabolic functions in rat-bone and gut - are organized as dynamic entities able to generate various temporal expressions, including self-oscillating patterns and, secondly, Ca homeostasis results from interaction between both metabolic and hormonal oscillators. Following this schema, a major role for the hormonal system, with its circadian pattern, could be to act directly (...) on metabolic functions or indirectly through feeding behaviour, in order to optimize, coordinate and synchronize the Ca fluxes at ECF level. (shrink)

Bodies of collective knowledge evolve through individual action, like all products that have a use. They also can be evaluated from the engineer's optimizing design perspective. But can individual participants in their making recognize local optimality? Can they work to realize it? Are they unable to act seriosly in a way that would ensure acquisition of a certain suboptimal design feature? One might hope for a simple answer: appeal to innate constraints on the form of categorization. But such constraints cannot (...) wholly pre-empt the need for individual checks and thus for agency. The use of categorial schemes engages facts about the world that do not leap to the eye. They are unlike syntactic or phonological constraints of language, or edge-and orientation-detection algorithms of visual perception. What we should thus be looking for will be modest: constraints, innate or otherwise, that rule out the choice of categorial schemes which are clearly suboptimal and that are, in principle, open to agents' instant observation. We look to a limited if important domain of systematic knowledge: medical diagnostic knowledge. (shrink)

The design of new constitutions is fraught with challenges on both issues of structural design and individual rights. As both a descriptive and normative matter it is exceedingly difficult to believe that one structural solution will fit all cases. The high variation in nation size, economic development, and ethnic division can easily tilt the balance for or against a Presidential or Parliamentary system, and even within these two broad classes the differences in constitutional structure are both large and hard to (...) measure. The only confident claim is that some system of separation of powers coupled with checks and balances is needed. Deciding which system, however, is far harder. In contrast, that same level of doubt does not arise in connection with the correct specification of individual right. Strong systems of negative rights on matters of liberty, property, religion, and speech are preferable across a wide range of social organizations. On the other hand, any effort to create systems of positive entitlements will fail because of the negative effects that they have on wealth creation and the inability to define or limit the scope of the relevant entitlements. (shrink)

The claim that one is never morally permitted to engage in non-optimal harm doing enjoys a great intuitive appeal. If in addition to this claim, we reject the moral relevance of the doingallowing distinction. In this short essay, I propose a different take on the argument in question. Instead of opting to reject its conclusion by defending the moral relevance of the doingallowing distinction, we can no longer rely on the strong intuitive appeal of the claim that (...) one is never morally permitted to engage in non-optimal harm doing. (shrink)

Purpose– The purpose of this paper is to attempt to investigate how Information and Communications Technology researchers in UK computing departments address ethics in their research. Whilst research and innovation in ICT has blossomed in the last two decades, the ethical, social and legal challenges they present have also increased. However, the increasing attention the technical development receives has not been replicated in the area of developing effective guidelines that can address the moral issues inherent in ICT research.Design/methodology/approach– This research (...) is qualitative and made use of interviews. The data analysis was done with dialectical hermeneutics. Through a dialectical hermeneutic process, this research unpacks different understandings of relevance attached to ethics reviews of ICT research in UK computing departments.Findings– The findings include that ethics reviews are relevant because; it is a moral duty, it improves trust for researchers, it is part of risk assessment, it is in compliance with the law and it is a sustainable act.Practical implications– These various understandings illustrate an important dialectic process on the current state of the art in ICT research.Social implications– It asks to what degree the currently dominant model of ethics review based on biomedical ethics is optimal to ICT.Originality/value– It proposes a framework that can effectively help researchers and administrators to ensure responsible research and innovation in ICT. Finally, it identifies that ICT researchers would benefit from the developing repertoire of responsible research innovation. (shrink)

Two experiments are reported that employed think-aloud methods to test predictions concerning relevance effects and rationalisation processes derivable from Evans' (1996) heuristic-analytic theory of the selection task. Evans' account proposes that card selections are triggered by relevance-determining heuristics, with analytic processing serving merely to rationalise heuristically cued decisions. As such, selected cards should be associated with more references to both their facing and their hidden sides than rejected cards, which are not subjected to analytic rationalisation. Experiment 1 used (...) a standard selection-task paradigm, with negative components permuted through abstract conditional rules. Support was found for all heuristic-analytic predictions. This evidence was shown to be robust in Experiment 2, where "select - don't select" decisions were enforced for all cards. Both experiments also clarify the role played by secondary heuristics in cueing the consideration of hidden card values during rationalisation. We suggest that whilst Evans' heuristic-analytic model and Oaksford and Chater's (e.g., 2003) optimal data selection model can provide compelling accounts of our protocol findings, the mental models theory fares less well as an explanation of our full dataset. (shrink)

Existential phenomenologists hold that the two most basic forms of intelligent behavior, learning, and skillful action, can be described and explained without recourse to mind or brain representations. This claim is expressed in two central notions in Merleau-Ponty's Phenomenology of Perception: the intentional arc and the tendency to achieve a maximal grip. The intentional arc names the tight connection between body and world, such that, as the active body acquires skills, those skills are stored, not as representations in the mind, (...) but as dispositions to respond to the solicitations of situations in the world. A phenomenology of skill acquisition confirms that, as one acquires expertise, the acquired know-how is experienced as finer and finer discriminations of situations paired with the appropriate response to each. Maximal grip names the body's tendency to refine its responses so as to bring the current situation closer to an optimal gestalt. Thus, successful learning and action do not require propositional mental representations. They do not require semantically interpretable brain representations either.Simulated neural networks exhibit crucial structural features of the intentional arc, and Walter Freeman's account of the brain dynamics underlying perception and action is structurally isomorphic with Merleau-Ponty's account of the way a skilled agent is led by the situation to move towards obtaining a maximal grip. (shrink)

The abbreviation ARCS in the ARCS motivational model comprises the first letters of four English words: Attention, Relevance, Confidence, and Satisfaction. The ARCS motivation model is based on a systematic and easy-to-operate motivation theory. Many research studies have verified the applicability and effectiveness of the ARCS model in education worldwide. The proposed optimized ARCS motivation model takes the traditional ARCS motivation model and systematically optimizes it to make it suitable for the coding of data from videos of music classes. (...) The case analysis method selected 14 high-quality music lessons as the research object. The optimized ARCS model involves text conversion, coding, and statistical analysis of the transcripts of videos of high-quality music classes. The data analysis was used to analyze the characteristics of students’ emotional and behavioral motivation incentive strategies in each section of the ARCS motivation model in combination with specific high-quality case lesson fragments. This paper summarizes ways and means of using a motivational approach in the teaching of quality music classes, providing theoretical support for the practice of music teaching. (shrink)

The following essay responds to a draft article that criticises the theory of libertarian restitution in “Libertarian Rectification: Restitution, Retribution, and the Risk-Multiplier” (LR). The article was freely available to internet search engines. Hence, it seems fair and useful to reply to these very welcome objective criticisms. It is not intellectually relevant that its author might subsequently and subjectively have thought better of them, possibly as a result of the earlier version of this reply. Generally, the article misconstrues the position (...) on retribution in LR. Eventually, it makes apparent qualifications to its own position such that there does not seem to be any clear theoretical difference between the two on the central disputed issue. LR’s position is to explain and defend only the non-normative theory of libertarian restitution: full restoration or compensation to the damaged (initiatedly imposed on) party. But it is argued that this can include a retributive aspect if that is what the victim prefers. Moreover, such restitution will tend to act as a deterrent that maximises both overall interpersonal liberty (theorised as no initiated imposed costs) and human welfare (theorised as preference satisfaction). (shrink)

Setting optimal significance levels that minimize Type I and Type II errors allows for more transparent and well‐considered statistical decision making compared to the traditional α = 0.05 significance level. We use the optimal α approach to re‐assess conclusions reached by three recently published tests of the pace‐of‐life syndrome hypothesis, which attempts to unify occurrences of different physiological, behavioral, and life history characteristics under one theory, over different scales of biological organization. While some of the conclusions reached using (...) optimal α were consistent to those previously reported using the traditional α = 0.05 threshold, opposing conclusions were also frequently reached. The optimal α approach reduced probabilities of Type I and Type II errors, and ensured statistical significance was associated with biological relevance. Biologists should seriously consider their choice of α when conducting null hypothesis significance tests, as there are serious disadvantages with consistent reliance on the traditional but arbitrary α = 0.05 significance level. (shrink)

This article addresses issues in the philosophy of fiction from the perspective of a relevance theoretic approach to communication: first, how should we understand the notion of ‘voice’ as it is used in the analysis of free indirect style narratives; and, second, in what sense can the person responsible for free indirect representations of fictional characters' thoughts be regarded as a communicator? The background to these questions is the debate about the roles of pretence and attribution in free indirect (...) style. I argue that the role of expressives in sustaining the illusion that fictional characters speak their inner thoughts suggests that ‘voice’ should be understood in two distinct ways. On the one hand, there are cases in which the use of expressive devices leads to the formation of thoughts which are understood to resemble other (attributed) thoughts. On the other hand, there are other cases in which expressives are used as a means of simulating a fictional character's behaviour or style. At the same time, I argue that in order to accommodate free indirect thought representation in a relevance theoretic model of communication, the responsibility for ensuring that the effort of processing the text will be rewarded by optimal relevance must be decoupled from the point of view that is being represented. While the (constructed) author is responsible for orchestrating our interpretation of free indirect thought representations so that the effort of processing will result in optimal relevance, the reader does not necessarily assume this function is being performed by someone who intends to communicate their own thoughts: the relevance of the act of narration may instead lie in the sense of mutuality achieved between reader and character. (shrink)

As 'disruption' is currently becoming the new buzzword in boardrooms, this book advocates that the most striking opportunity for business today is making itself relevant to its stakeholders. By presenting a new route via innovative business models, a transformational corporate approach to stakeholder-orientated value creation is advocated in the form of a new stakeholder management framework. This conceptual framework provides both a theoretical and practical management solution for re-inventing the organisation via an enlightened perspective of the purpose of business in (...) society. The new approach transforms the existing business model via an inclusive, collaborative, connected mechanism of stakeholder value creation into an innovative business model through which the corporation mobilises the investment, conversion, and sustainability of the resources it employs in ways which are designed to be optimally relevant to its stakeholders. The overall impact results in innovative business models serving as catalysts for creating stakeholder-orientated value in place of the traditional, more narrowly-focused shareholder profit-maximisation aim of conventional business models. (shrink)

In this article I analyse object labelling image macro internet memes as multimodal metaphors, taking the Distracted Boyfriend meme as a case study. Object labelling memes are multimodal texts in which users add labels to a stock photograph to convey messages that are often humorous or satirical in nature. Using the relevance-theoretic account of metaphor, I argue that object labelling memes are multimodal metaphors which are interpreted using the same processes as verbal metaphors. The labelling of the image guides (...) the viewer in the construction of ad hoc concepts, and it is these ad hoc concepts that contribute to the overall meaning that is communicated. The analysis in this article is rooted in the relevance-theoretic claim that pragmatic interpretive processes are triggered by all and any ostensive acts of communication. I also draw heavily on Deirdre Wilson’s work on lexical pragmatics to show how this plays out in the case of a multimodal digital text. Memes, like verbal metaphors, do not require a special theory or framework. They can be understood as ostensive stimuli which trigger the search for an optimally relevant interpretation. (shrink)

In this paper we investigate the following two questions: Q1: Do there exist optimal proof systems for a given language L? Q2: Do there exist complete problems for a given promise class equation image?For concrete languages L and concrete promise classes equation image , these questions have been intensively studied during the last years, and a number of characterizations have been obtained. Here we provide new characterizations for Q1 and Q2 that apply to almost all promise classes equation image (...) and languages L, thus creating a unifying framework for the study of these practically relevant questions. While questions Q1 and Q2 are left open by our results, we show that they receive affirmative answers when a small amount of advice is available in the underlying machine model. For promise classes with promise condition in equation imageequation image, the advice can be replaced by a tally equation image-oracle. © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. (shrink)

Relevance of the article is determined that the effective functioning of the reinsurance market greatly depends on the development of its infrastructure because it creates opportunities for implementation of reinsurance services, mediates, accelerates and facilitates placement and execution of reinsurance contracts. Given the state of the domestic insurance market mediation necessary means to enhance its development and integration into the global reinsurance market. The article is a study of measures to enhance the role of mediation in the insurance market (...) of Ukraine. The article provided a critical assessment of the legal status of insurance mediation in Ukraine. Factors that determine its role in the insurance market of Ukraine. Established quantitative and cost indicators of intermediation of brokers in insurance and reinsurance, given their logical explanation. Suggestions to create appropriate conditions for the development of mediation in the insurance and reinsurance markets in Ukraine. Mediation plays an important role in the development of the insurance market of Ukraine since: helping the participants to choose the most optimal proposal for the establishment of additional guarantees of the insurance liabilities; strengthening partnerships and trust between the reinsurer and the reinsurer; improves the quality and dynamics of sales reinsurance services; supports a healthy competitive environment in the reinsurance market. It was established that the quantitative and cost indicators of intermediation of brokers in insurance and / or reinsurance in Ukraine do not match. By number of deals leadership position with insurers-residents, the cost - non-resident reinsurers. The most attractive segment for mediation turned provision of agreements with non-resident reinsurers for property insurance. To create the appropriate conditions for the development of mediation in the insurance and reinsurance markets of Ukraine should: increase transparency of brokers to introduce their professional liability insurance and the formation of guarantee funds. (shrink)

Can the output of human cognition be predicted from the assumption that it is an optimal response to the information-processing demands of the environment? A methodology called rational analysis is described for deriving predictions about cognitive phenomena using optimization assumptions. The predictions flow from the statistical structure of the environment and not the assumed structure of the mind. Bayesian inference is used, assuming that people start with a weak prior model of the world which they integrate with experience to (...) develop stronger models of specific aspects of the world. Cognitive performance maximizes the difference between the expected gain and cost of mental effort. Memory performance can be predicted on the assumption that retrieval seeks a maximal trade-off between the probability of finding the relevant memories and the effort required to do so; in categorization performance there is a similar trade-off between accuracy in predicting object features and the cost of hypothesis formation; in casual inference the trade-off is between accuracy in predicting future events and the cost of hypothesis formation; and in problem solving it is between the probability of achieving goals and the cost of both external and mental problem-solving search. The implemention of these rational prescriptions in neurally plausible architecture is also discussed. (shrink)

In a seminal 1977 article, Rumelhart argued that perception required the simultaneous use of multiple sources of information, allowing perceivers to optimally interpret sensory information at many levels of representation in real time as information arrives. Building on Rumelhart's arguments, we present the Interactive Activation hypothesis—the idea that the mechanism used in perception and comprehension to achieve these feats exploits an interactive activation process implemented through the bidirectional propagation of activation among simple processing units. We then examine the interactive activation (...) model of letter and word perception and the TRACE model of speech perception, as early attempts to explore this hypothesis, and review the experimental evidence relevant to their assumptions and predictions. We consider how well these models address the computational challenge posed by the problem of perception, and we consider how consistent they are with evidence from behavioral experiments. We examine empirical and theoretical controversies surrounding the idea of interactive processing, including a controversy that swirls around the relationship between interactive computation and optimal Bayesian inference. Some of the implementation details of early versions of interactive activation models caused deviation from optimality and from aspects of human performance data. More recent versions of these models, however, overcome these deficiencies. Among these is a model called the multinomial interactive activation model, which explicitly links interactive activation and Bayesian computations. We also review evidence from neurophysiological and neuroimaging studies supporting the view that interactive processing is a characteristic of the perceptual processing machinery in the brain. In sum, we argue that a computational analysis, as well as behavioral and neuroscience evidence, all support the Interactive Activation hypothesis. The evidence suggests that contemporary versions of models based on the idea of interactive activation continue to provide a basis for efforts to achieve a fuller understanding of the process of perception. (shrink)

_Relevance_. The starting point for embedding CSR as part of the management culture is the vision and values. But first, you need to understand what 'values' means in CSR terms. Companies spend time and effort in creating their mission, vision and values statements, but these are often only from a commercial and internal viewpoint. To achieve CSR values, managers need to take an objective external vie", identifying their various stakeholders, and the company's impacts upon them [1]. Management culture is part (...) of an organizational culture that includes both formal and informal elements of the organizational culture. Management culture reflects the level of the organization’s managerial system development, modernity, efficiency and functionality. It depends on this level how innovations will be implemented in the organization’s management and whether they will be implemented at all, and how effectively the objectives will be solved and the aims will be implemented [2]. Summarizing the results of various research made in different countries, it becomes clear that large companies are not always inclined to coordinate their activities with stakeholders because of their institutional weakness. Research aim: assess the level of cultural and social responsibility of organisational management and discuss their links. Research methods. Analysis of scientific literature, questionnaire survey. Research results. The findings of the research carried out in other countries proved that organizations evaluate not all aspects of corporate social responsibility, and this is influenced by the lack of the employees, as one part of the stakeholders, strong institutional capacity. The quantitative research found that the administration of both groups of companies inadequately evaluate corporate social responsibility activities, there is no feedback guaranteed, there is insufficient care about the relations with employees who are one part of stakeholders, their physical environment and psychological condition. There is no effective internal audit system of social responsibility which should be developed to guarantee feedback, and corporate social responsibility has not become an inseparable part of organizational culture. Having evaluated the weaknesses and the positive trends of management culture and social responsibility characteristics of groups of companies, it should be stated that firstly, management culture expression has influence when aiming for corporate social responsibility; secondly, corporate social responsibility can be regarded as an integral derivative of management culture realized in organizations’ management practice. However, there are also significant differences. There were set personal managerial personnel culture and management knowledge significant amounts of estimates, associated with different approaches to other management work criteria according to which the management culture condition is diagnosed. The clearer dynamics of indicator estimates of the second group of companies leads to the conclusion that the management culture is still being formed, but without clear direction vector. Processes are not clearly focused and uncoordinated. The standards, regulations existing in the second group are not sufficiently linked to the activities practice, so they do not guarantee the optimality of processes, unlike in the first group of companies, where there is a standard peculiar management culture, although the estimates of indicators diagnosing it are not particularly high. In such a situation, the questions of investment in the modernization of management, optimization of working processes remain relevant, unresolved, but the effectiveness of their payoff remains uncertain. Human resources in management policy of both groups of companies are under-estimated; in order to create favorable conditions for their effective use, communication and the interrelationship functionality problems are acute. Organizations (larger problems fixed in the second group of companies) are not adequately prepared to implement corporate social responsibility organization-wide, as management work is not optimally organized, the managerial personnel lacks knowledge and skills working with human resources. Even in the evaluation of formal aspects of corporate social responsibility standards implementation possibilities, the situation existing in groups of companies and organizational abilities of leaders would not allow to realize them systematically and effectively. In this case, corporate social responsibility values would remain more as a declarative form and not the organization’s management culture inseperable part, and a natural, balanced way of functioning of processes based on this philosophy. Though in the second group of companies there is clearer dynamics according to separate management culture parameters, the apparent orientation to modernization of activities shows more open to innovation, in which the elimination of drawbacks and purposeful development can serve the realization of corporate social responsibility more effectively. In both groups of companies the highlighted declarative corporate social responsibility policy trends contradict the actual practice of social responsibility in relations with the organization's internal and external stakeholders. This partly confirms theoretical insights presented in Lithuanian scientific works, which emphasize marketing direction of corporate social responsibility as a general cultural dominant. However, this aspect has not been developed yet in the case of the discussed groups of companies, and the research results lead to the conclusion that organizations lack basic knowledge of corporate social responsibility and motivation to realize them in practice, and the high level of clustering and internal corruption impedes social responsibility transfer to the strategic level. The lack of development of dialogue culture between stakeholders (subjects) became apparent in management culture problem areas and can become a formidable obstacle to the implementation of both individual social responsibility initiatives and installing in complex. This is true in the sense that the organizations do not have universal support from employees, and the procedures are carried out in a superficial manner and have a formal character. Corporate social responsibility is a valuable organization's internal culture category, but this base is not strong enough and balanced. Corporate social responsibility in the activities of both groups of companies (and especially - the first) can be considered still developing and has not taken clear shapes yet. According Hoskins (2006) CSR is a means of developing a management culture. However, the fundamental CSR success factor is that it is a living management process. The strategy needs to be reviewed regularly, and implemented across business units and all CSR components. The delivery of CSR practice is a critical activity. If any of the components are weak, then they detract from the effectiveness of the other components. Like all cultural aspects, CSR is only as strong as its weakest link A CSR management system is essential for CSR to become embedded within the business culture. CSR should not be a separate central activity, but become part of the business process and practice for all business units. (shrink)

Consistency and optimality together with converse consistency provide an illuminating and novel characterization of the equilibrium concept (Peleg and Tijs, 1996). But (together with non-emptiness) they preclude refinements of the equilibrium notion and selection of a unique equilibrium (Norde et al., 1996). We suggest two escape routes: By generalizing the concept of strict equilibrium we question the practical relevance of the existence requirement for refinements. To allow for equilibrium selection we suggest more complex reduced games which capture the inclinations (...) of ``players who already left''. (shrink)

Intractability and optimality are two sides of one coin: Optimal models are often intractable, that is, they tend to be excessively complex, or NP-hard. We explain the meaning of NP-hardness in detail and discuss how modem computer science circumvents intractability by introducing heuristics and shortcuts to optimality, often replacing optimality by means of sufficient sub-optimality. Since the principles of decision theory dictate balancing the cost of computation against gain in accuracy, statistical inference is currently being reshaped by a vigorous (...) new trend: the science of simplicity. Simple models, as we show for specific cases, are not just tractable, they also tend to be robust. Robustness is the ability of a model to extract relevant information from data, disregarding noise.Recently, Gigerenzer, Todd and the ABC Research Group (1999) have put forward a collection of fast and frugal heuristics as simple, boundedly rational inference strategies used by the unaided mind in real world inference problems. This collection of heuristics has suggestively been called the adaptive toolbox. In this paper we will focus on a comparison task in order to illustrate the simplicity and robustness of some of the heuristics in the adaptive toolbox in contrast to the intractability and the fragility of optimal solutions. We will concentrate on three important classes of models for comparison-based inference and, in each of these classes, search for that to be used as benchmarks to evaluate the performance of fast and frugal heuristics: lexicographic trees, linear modes and Bayesian networks. Lexicographic trees are interesting because they are particularly simple models that have been used by humans throughout the centuries. Linear models have been traditionally used by cognitive psychologists as models for human inference, while Bayesian networks have only recently been introduced in statistics and computer science. Yet it is the Bayesian networks that are the best possible benchmarks for evaluating the fast and frugal heuristics, as we will show in this paper. (shrink)

We propose a formal framework for interpretable machine learning. Combining elements from statistical learning, causal interventionism, and decision theory, we design an idealised explanation game in which players collaborate to find the best explanation for a given algorithmic prediction. Through an iterative procedure of questions and answers, the players establish a three-dimensional Pareto frontier that describes the optimal trade-offs between explanatory accuracy, simplicity, and relevance. Multiple rounds are played at different levels of abstraction, allowing the players to explore (...) overlapping causal patterns of variable granularity and scope. We characterise the conditions under which such a game is almost surely guaranteed to converge on a optimal explanation surface in polynomial time, and highlight obstacles that will tend to prevent the players from advancing beyond certain explanatory thresholds. The game serves a descriptive and a normative function, establishing a conceptual space in which to analyse and compare existing proposals, as well as design new and improved solutions. (shrink)

One theoretical charge (of Optimality Theory in its early conception) must have been to retain that sense of qualitative particularity as affecting as constraining theory relevant to a proscribed field when clearly a motivation was to divine in circumscriptions operational consequences conceived on a deferred abstractive level. An attraction of the theory's embodying results of constraint interactions as responsive to theory-internal qualitative implementation, as being in fact supplementarily transparent to co-ordinations of variously language specific implementations, qualitative identifications, was apparent naturalistic (...) coordination of defined features taken here—in OT—at one fell-swoop. Differently put, the uses of analyses of the relevant types of spaces (‘primitive from the viewpoint of linguistic theories’) will (latterly) involve a period of time-stretch or compression over a previously normal (I take it) process of embeddings in a new theorised and recursively enacted invocation/re-invocation of base as digestively present in results of corrected theories. Or as Prince and Smolensky have it -/- 'What we have done, in essence, is to replace the iterative procedure (act/evaluate, act/evaluate, . . . ) with a recursive scheme: collect the results of all possible actions, then sort recursively.' OT, 16. (shrink)

In this article a discussion of the phenomenon of wellness and its relevance to contemporary nursing practice is developed. Drawing on phenomenology, the research literature and the author's own wellness research, an exposition of the concept of wellness is presented. It is proposed that the experience of being well is lived as a continuity of time and that it involves both a taking-for-granted of the body and containment of the horizon of concern. The state of actually being well is (...) also clarified and contrasted with the more common understanding of wellness as an optimal or future state. This discussion has significance for nursing knowledge development, in terms of our understanding of the experience of wellness and illness. It also has implications for how nurses approach their practice, particularly in the area of health promotion. (shrink)

The idea that our perceptual openness to the world is normative can mean different things. In the Kantian tradition of Peter Strawson, Wilfrid Sellars and John McDowell, this openness is essentially tied to epistemic justification, that is to say, to our readiness to provide reasons for our actions and our beliefs about how things are. In the phenomenological tradition inaugurated by Edmund Husserl, the notion of norm-responsiveness that is relevant to perceptual experience has less to do with epistemic justification than (...) with perception’s capacity to guide action or elicit certain behaviors. In the lectures on Active and Passive Synthesis, Husserl explains how perception involves a pull towards gaining a more optimal view of the object by moving around it or scrutinizing it in various ways. On his part, Maurice Merleau-Ponty invokes the notion of norm in reference to our capacity to skillfully move our bodies and alter our points of view according to the particular demands of our perceptual situation. (shrink)

Resumen. Se presentan los conceptos básicos de muestreo secuencial en sus cinco modalidades,incluyendo muestreo secuencial de tipo estándar, usando solo una densidad crítica, por una precisiónfija, por medio de presencia-ausencia y finalmente de tipo temporal. Se notan un ejemplo real para cadacaso. Se nota y se explica la importancia de la distribución de los datos y los pertinentes ecuaciones. Sepresentan a través de ejemplos reales las ecuaciones para estimar el tamaño óptimo de la muestra paracada uno de las cinco modalidades (...) del muestreo secuencial. Se enfatiza la ventaja económica de estetipo de muestreo.Palabras clave: Distribución de los datos, muestreo secuencial, tamaño óptimo de la muestra. Fundamental concepts of sequential sampling in all its types including standard sequentialsampling, sequential sampling using only one critical density, fixed precision sequential sampling,presence-absence sequential sampling, and time sequential sampling are highlighted. A real caseexample for each of the five sequential samplings is given. The relevance of data distribution forsequential sampling along with corresponding equations is provided and explained. Equations to assessthe optimal sample size for each case are noted and exemplified. The economic advantages of sequentialsampling in stressedKeywords: Data distribution, sample size, sequential sampling. (shrink)

Coregulation refers to the process by which relationship partners form a dyadic emotional system involving an oscillating pattern of affective arousal and dampening that dynamically maintains an optimal emotional state. Coregulation may represent an important form of interpersonal emotion regulation, but confusion exists in the literature due to a lack of precision in the usage of the term. We propose an operational definition for coregulation as a bidirectional linkage of oscillating emotional channels between partners, which contributes to emotional stability (...) for both partners. We propose several distinctions and raise unanswered questions that will need to be addressed in order to understand the relevance of coregulation for well-being in adulthood. (shrink)

Despite criticism in the wake of the GFC, history shows that theory and curricula adapt to rectify any disconnects between theory, curricula, and practice. Finance theory unquestionably has antecedents in economics, accounting, legal theory, and psychology. Some theoretical developments—including the moral hazard consequences of limited liability—have yet to filter through to many texts and curricula, which also omit explanations of uncertainty; incomplete and optimal contracting; contagion; and behavioural finance. Student learning outcomes could be enhanced if universities, perhaps in a (...) final year, cross-disciplinary “capstone” course, empowered students to understand the financial documentation evidencing sophisticated transactions; map relevant cash flows and wealth transfers; and recognise Ponzi schemes, the ethics of stakeholder wealth transfers, the conditions for contagion, and incentives for adverse selection and moral hazard in practice. (shrink)

This article argues that evolutionary models based on selection validate, under appropriate conditions, the relevance of optimality as an explanatory mechanism in rational choice theory. The reason is that these frameworks share the mechanism that drives the results, namely, optimization, even if they situate it at different levels. The consequences of our argument are twofold. First, it resolves the tension between those predictions of rational choice theory that are accurate and the evidence showing that individuals seldom optimize. Second, it (...) relativizes the explanatory import of rationality without diminishing the role of optimization as a mechanism. (shrink)

In the selection of job candidates who have the mental ability to become professional ATCOs, psychometric testing has been a ubiquitous activity in the ATM domain. To contribute to psychometric research in the ATM domain, we investigated the extent to which spatial orientation ability (SOA), as conceptualized in the spatial cognition and navigation literature, predicted air traffic conflict detection performance in a simulated free route airspace (FRA) environment. The implementation of free route airspace (FRA) over the past few years, notably (...) in Europe, have facilitated air traffic services by giving greater flexibility to aviation operators in planning and choosing preferred air routes that can lead to quicker arrivals. FRA offers enhanced system safety and efficiency, but these benefits can be outweighed by the introduction of air traffic conflicts that are geometrically more complex. Such conflicts can arise from increased number and distribution of conflict points, as well as from elevated uncertainty in aircraft maneuvering (for instance, during heading changes). Overall, these issues will make conflict detection more challenging for air traffic controllers (ATCOs). Consequently, there is a need to select ATCOs with suitably high levels of spatial orientation ability (SOA) to ensure flight safety under FRA implementation. In this study, we tested 20 participants who are eligible for ATCO job application, and found that response time-based performance on a newly developed, open access, computerized spatial orientation test (SOT) predicted time to loss of minimum separation (tLMS) performance on an air traffic conflict detection task (AT-CDT) we designed. We found this predictive relationship to be significant to a moderately large extent under scenarios with high air traffic density (raw regression coefficient = 0.58). Moreover, we demonstrated our AT-CDT as a valid test in terms of eliciting well-known mental workload and spatial learning effects. We explained these findings in light of similar or overlapping mental processes that were most likely activated optimally under task conditions featuring approximately equal numbers of outcome-relevant stimuli. We conclude by discussing the further application of the SOT to the selection of prospective ATCOs who can demonstrate high levels of conflict detection performance in FRA during training simulations. (shrink)

BackgroundVaccination has been considered one of the most effective public health interventions. In the context of the global epidemic of coronavirus disease 2019, it remains unclear what role general vaccination attitudes and perceptions have on the acceptance of COVID-19 vaccine.ObjectiveThis study aims to explore the impact of general attitudes and perceptions toward vaccination on the acceptance of a newly developed vaccine, taking COVID-19 vaccines as an example.MethodA cross-sectional survey was conducted among 2,013 Chinese adult participants. Generalized order logistic regression and (...) path analysis models were used to analyze impacts of general attitudes and perceptions toward vaccination on the acceptance of the COVID-19 vaccine.ResultsThe prevalence of hesitancy to vaccination in general is 49.9% among the Chinese adult population. General perceptions of vaccination were associated with corresponding perceptions of the COVID-19 vaccine. A “no hesitancy” attitude toward vaccination is a significant determinant of future COVID-19 vaccination compared to vaccine refusers, and perceptions of COVID-19 vaccine remain a significant determinant for the acceptance of the COVID-19 vaccine. Path analysis indicates that perceptions of the importance and safety of vaccination have a positive overall effect on the acceptance of the COVID-19 vaccine, and that general perceptions of vaccination as a whole on each measure indirectly influence the acceptance of the COVID-19 vaccine.ConclusionGeneral attitudes and perceptions toward vaccination were associated with those of the COVID-19 vaccine and future vaccination intention. To prepare for possible emergence of diseases in the future, routine health campaigns should be launched by relevant government departments and vaccination authorities to enhance the overall awareness and knowledge of vaccination among the public and to ensure optimal vaccination experience. In addition, targeted knowledge dissemination and mass mobilizations should be urged for newly developed vaccines when some specific infectious diseases emerge, such as COVID-19 at present. (shrink)