As robots slip into more domains of human life - from the operating room to the bedroom - they take on our morally important tasks and decisions, as well as create new risks from psychological to physical. This book answers the urgent call to study their ethical, legal, and policy impacts.

In multimodal multiobjective optimization problems, multiple Pareto optimal sets, even some good local Pareto optimal sets, should be reserved, which can provide more choices for decision-makers. To solve MMOPs, this paper proposes an evolutionary algorithm with clustering-based assisted selection strategy for multimodal multiobjective optimization, in which the addition operator and deletion operator are proposed to comprehensively consider the diversity in both decision and objective spaces. Specifically, in decision space, the union population is partitioned into multiple clusters by using a density-based (...) clustering method, aiming to assist the addition operator to strengthen the population diversity. Then, a number of weight vectors are adopted to divide population into N subregions in objective space. Moreover, in the deletion operator, the solutions in the most crowded subregion are first collected into previous clusters, and then the worst solution in the most crowded cluster is deleted until there are N solutions left. Our algorithm is compared with other multimodal multiobjective evolutionary algorithms on the well-known benchmark MMOPs. Numerical experiments report the effectiveness and advantages of our proposed algorithm. (shrink)

In this chapter, we argue that Du Châtelet’s account of motion is an important contribution to the history of the absolute versus relative motion debate. The arguments we lay out have two main strands. First, we clarify Du Châtelet’s threefold taxonomy of motion, using Musschenbroek as a useful Newtonian foil and showing that the terminological affinity between the two is only apparent. Then, we assess Du Châtelet’s account in light of the conceptual, epistemological, and ontological challenges posed by Newton to (...) any relational theory of motion. What we find is that, although Du Châtelet does not meet all the challenges to their full extent, her account of motion is adequate for the goal of the Principia: determining the true motions in our planetary system. (shrink)

ABSTRACT What characterizes human reasoning is the ability of dealing with incomplete information. Incomplete logic is developed for modeling incomplete knowledge. The most distinctive feature of incomplete logic is its semantics. This is an alternative presentation of partial semantics. In this paper, we will introduce the general notion of incomplete logic (ICL), compare it with partial logic, and give the resolution method for it. We will also show how ICL can be applied to nonmonotonic reasoning. We define nonmonotonic derivation as (...) monotonic derivation in ICL from the database and some consistent assumptions. The mechanism of ICL makes it easy to assert the consistency of an assumption without asserting the assumption itself. (shrink)

Mathematical models and their modeling frameworks developed to advance knowledge in one discipline are sometimes sourced to answer questions or solve problems in another discipline. Studying this aspect of cross-disciplinary transfer of knowledge objects, philosophers of science have weighed in on the question of whether knowledge about how a mathematical model is previously applied in one discipline is necessary for the success of reapplying said model in a different discipline. However, not much has been said about whether the answer to (...) that epistemological question applies to the reapplication of a modeling framework. More generally, regarding the nature of the production of knowledge in science, a metaphysical question remains to be explored whether historical contingencies associated with a mathematical construct have a genuine impact on the nature—as opposed to sociological practices or individual psychology—of advancing scientific knowledge with said construct. Focusing on this metaphysical question, this paper analyzes the use of mathematical logic in the development of the Chomsky hierarchy and subsequent reapplications of said hierarchy; with these examples, this paper develops the notion of “spillovers” as a way to detect cross-disciplinary justifications for better understanding the relations between reapplications of the same mathematical construct across disciplines. (shrink)

Background: The prevalence of sedentary behavior in adolescents has aroused social attention. The association between sedentary behavior and cognitive flexibility remains unclear, and it may vary depending on the type of sedentary behavior. This study aimed to investigate the associations between specific-type sedentary behaviors and cognitive flexibility in adolescents.Method: A total of 700 Chinese adolescents aged 10–15 years were recruited. The self-report questionnaire was used to assess total sedentary time, recreational screen-based sedentary time, and educational sedentary time. The More-odd shifting (...) task was used to assess cognitive flexibility.Results: The correlation analysis showed that recreational screen-based sedentary time was negatively correlated with cognitive flexibility, whereas educational sedentary time was positively correlated with cognitive flexibility. The regression analysis also further revealed that a significantly negative association between recreational screen-based sedentary time and cognitive flexibility, while a significantly positive association existed between educational sedentary time and cognitive flexibility.Conclusion: The findings shown that the association between recreational screen-based sedentary behavior and cognitive flexibility differs from educational sedentary behavior in adolescents, providing new ideas for a more comprehensive understanding of the association between sedentary behavior and cognitive flexibility in adolescents. (shrink)

What role does traditional ecological knowledge play in the lives of smallholder farmers in post-conflict communities as they cope with the destructive impacts of war? In many cases, military weapons, such as unexploded bombs, are left behind in the surrounding landscape, forcing farmers to adapt their livelihood practices to the increased risk of death and injury. We analyze trends in the local production of knowledge in Ratanak Kiri province, Cambodia, an area heavily bombarded by the US Air Force during the (...) Vietnam War. We argue that the system of traditional ecological knowledge has adapted to include basic information on bomb identification, location, and management strategies. This factual approach gives individuals the flexibility to generate their own views on whether they perceive unexploded ordnance as a violent hazard and/or an economic commodity. In a relatively short 50-year time period, the body of knowledge has been quickly accumulated and culturally transmitted to family and neighbors. Our findings suggest that traditional ecological knowledge should not be reduced to a static and ancient form of collective memory. We call for the expansion of the concept of traditional ecological knowledge to include short-term and dynamic processes of knowledge generation. (shrink)

The literature on leadership is increasingly supporting the power of digital leadership in promoting corporate innovation. In spite of this, digital leadership is a noticeable omission from the literature. As such, in this study, we developed a model based on a resource-based view and social information processing theory to examine the roles of digital entrepreneurial orientation and digital organizational culture in the relationship between digital leadership and exploratory innovation. We examined the moderating role of big data analytics capabilities according to (...) a resource-based view and dynamic capability theory. Using a time-lagged survey data of 401 followers and 88 leaders, the results show that digital leadership has a positive impact on exploratory innovation; digital entrepreneurial orientation and digital organizational culture mediate the positive relationship between digital leadership and exploratory innovation; and and mediating effect is positive moderated by big data analytics capabilities. Thus, in this study we are not only responding to the call to strengthen digitalization research in organizations but also further deepening our understanding of the path from digital leadership to exploratory innovation. These findings have theoretical implications for the literature on leadership and managerial implications for practitioners. (shrink)

If you have not encountered Chuang Tzu before, prepare yourself for a treat. He was the sage who stood apart from all others in Chinese history. He was a unique presence, a great mind like no one before or since. Chuang Tzu quickly distinguished himself and became well known for his deep understanding and sense of humor. His mastery was such that he could explain the Tao with simple stories, and his humor was such that he could see the joy (...) in ordinary things. He taught his students about “carefree wandering”—the path of moving through life with a free and happy heart, regardless of how turbulent the journey might be. It is time for modern readers to join in on the fun. Chuang Tzu’s wisdom is not just for Eastern culture, but for all of humanity. We may not have the instability or the clash of massive armies indicative of Chuang Tzu’s time, but we have a lot of stress and tension in our modern world. Many of us find ourselves fighting little battles on the personal front just to get through the day. We can benefit greatly from Chuang Tzu’s teachings. These parables are presented throughout this book and juxtaposed with the charming and intelligent prose of modern-day Taoist teacher and author Derek Lin. Together, Chuang Tzu and Lin will present you with simple lessons that will have a lasting impact on your life. (shrink)

Parents have an influence on the formation of their children’s mate preferences. This research conducted two studies to test the relationship between parents’ education level and the gender role characteristics of ideal mate for college students, and the moderating role of urban-rural residence on this relationship. In study 1, 1,033 participants reported their explicit attitude toward gender role characteristics for an ideal mate via the Chinese Sex Role Inventory-50. In study 2, we recruited 130 participants and used an implicit association (...) test to measure their implicit attitude. Regression-based analyses showed that the higher education level of parents was significantly associated with female students’ mate preferences with high-femininity but low-masculinity traits. For male students, the higher education level of parents was associated with their explicit preferences of mates with high-masculinity but low-femininity traits. The significant moderating effect of urban-rural residence was observed in explicit preference, with the different patterns in gender groups. In conclusion, parents with higher educational attainment might bring up children who are more likely to embrace a partner with non-traditional gender roles. (shrink)

The definitions of yu 宇 and zhou 宙 in the “Gengsang Chu 庚桑楚” chapter of the Zhuangzi have been cited as the earliest definitions of space and time in the Chinese philosophical tradition. However, careful analysis of chosen modern translations reveals that the definitions entail rather obscure relationships between the Dao and space and time. I argue that the obscurity is not inherent in the text, but arises from the practice of rendering yu and zhou as the conceptual counterparts of (...) space and time or related concepts. Instead, I propose that we leave the terms untranslated. This practice would not only forestall interpretive difficulties concerning the Dao’s relations to space and time, but it would also preserve the Zhuangzist yu and zhou as two distinctive, ontic notions that indicate the Dao’s indeterminate modes of existence, a unique feature of the Zhuangzi. (shrink)

In the context of digital monetary market integration, the importance of cross-border digital currency research is receiving prominent attention. This study integrated Extended Unified Theory of Acceptance and Use of Technology (UTAUT2) and initial trust factors (ITM) into an integrative framework, which synthetically complemented the objective measures and subjective insights of digital currencies. The results indicated the integrated framework, which verified its robustness predicting the acceptance and recommendation intention of digital currency. By analyzing the two different features of digital currencies, (...) this research puts forward a set of targeted solutions to ensure that users of Chinese and Korean digital currencies make a long-term policy for the sustainability, eventually benefitting the cross-border digital monetary transactions and economic cooperation in Asia, which leads the world to the sustainable development in the digital currencies field. (shrink)

Competition for land is increasing as demand for multiple land uses and ecosystem services rises. Land regulation of the principles of landscape ecology is necessary to develop more sustainable approaches to land use planning. The research evaluated the present land patterns and determined best practices for its regulation of Dongwang Township in Quyang County, located in the Taihang Mountain area of Hebei Province, China. The research used the landscape ecology theory to construct an index system for landscape pattern analysis based (...) on the GIS and Fragstats 3.3 software. In this study, we examined the specific reasons that landscape ecology is superior to traditional methods in land consolidation planning and design, which is conducive to the comprehensive development of land ecological benefits. Landscape ecological planning can effectively reduce landscape fragmentation and improve intensive management. The result found that the descending order of the Shannon index was current landscape, landscape ecological planning, and traditional planning. Landscape ecological planning could protect the natural diversity than traditional planning. Landscape ecological planning enables the creation of long corridors, with higher densities and connectivity and lower average corridor widths than traditional planning. Besides, it can improve ecological service function values in the study area to varying degrees, thus discouraging residents from limiting themselves to grain production. This research has great potential to improve the visibility of ecosystem services in local land use planning and, thus, to improve the ecological functioning of future landscapes. (shrink)

This article is the first in a two-paper series, which offers a comprehensive and systematic review of, and response to, various anti-MeToo arguments made by MeToo skeptics. Taking the U.S. and China as examples, the first section overviews the local contexts of anti-sexual-assault/harassment movements, and the respective issues and challenges they each confront. It then summarizes the three primary objectives of the MeToo movement (accountability, empowerment and reform) and the three ideal-typical critiques advanced by MeToo skeptics (the Mobs Critique, the (...) Damsels-in-Distress Critique, and the Puritans Critique). The second through fourth sections will address various versions of the Mobs Critique and the fifth section the Damsels-in-Distress Critique, whereas the Puritans Critique will be left for the forthcoming second article in the series. -/- More specifically, the second and third sections of this article discuss how MeToo skeptics misappropriate the notions of “presumption of innocence” and “trial by public opinion” respectively. As it turns out, the caricature of the MeToo movement (as well as other movements aiming at swaying the public opinion) as the tyranny of mobs jeopardizing the rule of law reflects nothing but the skeptics’ own misconceptions of what the rule of law is and what we should learn from our historical experiences. The fourth and fifth sections respond, respectively, to the “argument from false accusations” and the “argument from self-victimization.” By reviewing conclusions of existing empirical researches and analyzing the conceptual and normative confusions underlying those arguments, I show how sex and gender biases distort implicitly yet systematically our cognitions of sexual assault and harassment. Because of the systematicity of such distortions, isolated resistances cannot effectively address the problems of sexual assault and harassment; by contrast, public opinion movements, such as MeToo, are exactly the kind of collective action crucial to the transformation of sociocultural ideas, and to the development of new institutions of effective remedy. -/- 本文是计划中一系列两篇文章的上篇，旨在对MeToo运动质疑者的各种常见观点及论述加以较为全面系统的辨析及回应。第一节以美国与中国为例，梳理反性侵扰运动的地方脉络，及在各自脉络中发展出的问题意识与面临的 挑战；在此基础上，总结MeToo运动追责、赋能与促变之三重诉求，并将质疑者的论调归纳为三大类型：“群氓批判”、“弱女子批判”与“道学家批判”。第二至四节针对“群氓批判”的不同版本做出回应，第五节着力批 驳“弱女子批判”，至于“道学家批判”则留待系列的下篇再行讨论。 -/- 具体而言，第二、三两节分别澄清质疑者对“无罪推定”与“舆论审判”概念的滥用与误用，指出为何质疑者将MeToo运动（以及其它公共舆论运动）视为践踏法治的群氓狂欢，乃是基于对法治原则的错误理解、以及对历史 经验的错位应激。第四节与第五节各自通过对质疑者“虚假指控论”与“自我受害者化论”的剖析，包括对相关经验研究的总结讨论、以及对此类论述中概念与逻辑的抽丝剥茧，揭示性别偏见如何隐蔽而深入地扭曲着我们在性侵 扰问题上的认知。恰恰是由于这种扭曲的系统性，导致我们无法以散兵游勇的方式有效反对性侵扰，而必须动员起MeToo这样的公共舆论运动，以集体行动的方式促成社会文化观念的变革，并在此基础上建设起新的救济制度 。. (shrink)

Previous research showed that animals adopt different foraging strategies in different environment settings. However, research on whether humans adapt their foraging strategies to the foraging environment has shown little evidence of a change in strategies. This study aims to investigate whether humans will adapt their foraging strategies when performance differences between strategies are large and why participants may fixate on a single strategy. We conducted two foraging experiments and identified the strategies used by the participants. Most participants used the Give-Up (...) Time (GUT) strategy regardless of the environment they encountered. GUT was used even in environments where other strategies such as the Fixed-Time strategy or the Fixed-Number strategy performed better. Using computer simulations, we further examined the conditions under which the GUT strategy will perform well compared to the other strategies. We found that even though the GUT strategy is not always the best strategy, it performs consistently on a satisfactory level and had an advantage when variance in the quality of patches was introduced. The consistently good performance of the GUT strategy could thus explain participants’ lack of strategy switching. (shrink)

In this paper, I examine the grammatical nature of Wittgenstein's private language argument (PLA). On my interpretation, the definition of private language implies that the private speaker has no natural expressions for his sensations. This in turn implies that he has no criterion of correctness for using his sensation‐words. This then implies, together with the grammatical rule that a word is senseless without a criterion of correctness for its use, that private sensation‐words are senseless, and hence also that private language (...) is senseless. So in my analysis, Wittgenstein succeeds in dissolving the problem of private language through a grammatical investigation, and therefore, his treatment of private language is consistent with his metaphilosophy. I further explain that Wittgenstein provides a diagnosis of the error of the philosopher who thinks that private language is possible and that he also offers a therapy consisting of analogies or objects of comparison. I also make a comparison with previous studies on the PLA and discuss a number of novelties in my interpretation. (shrink)

Appeared as a ‘low-tech’ yet significant teaching aid in the modern classroom, the blackboard has greatly shaped the medium, space and pedagogy of school education. Over the past two centuries, ‘blackboard’ itself has also been constantly remoulded in terms of its colour, material and function, from the traditional black wooden surface to the interactive digital screen, which requires comprehensive investigations from historical, technological and educational perspectives. This essay synthesizes approaches applied in three dimensions. First is the material and technological aspect, (...) tracing the transformation of such ‘boards’ from stone/wood to plastic/steel to digital/online forms and their functions extended; then it focuses on the etymological and lexicographical dimension, comparatively analysing the definitions of blackboard, chalkboard and whiteboard in the representative dictionaries; moreover, an educational perspective is employed throughout the whole investigation, especially on how the invention and involution of ‘blackboard’ shaped the class space, teacher-student relationship and subject pedagogy. Beyond the concern of technology, this essay reserves due attention to the epistemological issue in dealing with the presentation, transmission and acquisition of knowledge under different cognitive contexts. (shrink)

Kremer presented three approaches of comparing fixed-point and revision theories of truth in Kremer, 363–403, 2009). Using these approaches, he established the relationships among ten fixed-point theories suggested by Kripke in, 690–716, 1975) and three revision theories presented by Gupta and Belnap in. This paper continues Kremer’s work. We add five other revision theories to the comparisons, including the theory proposed by Gupta in, 1–60, 1982), the theory proposed by Herzberger in, 61–102, 1982), the theory based on fully-varied revision sequences (...) proposed by Gupta and Belnap in, the theory proposed by Yaqūb in, and the theory based on weakly consistent revision sequences. We show that, the notion of Thomason model defined by Belnap’s limit rule is not equivalent to the one defined by Gupta’s limit rule, and that the theory based on fully-varied revision sequences is ≤2-equivalent to the one based on the greatest intrinsic fixed point of σ. (shrink)

Deep neural network models have revived long-standing debates on the value of explanation versus prediction for advancing science. Bowers et al.'s critique will not make these models go away, but it is likely to prompt new work that seeks to reconcile explanatory and predictive models, which could change how we determine what constitutes valuable scientific knowledge.

When the borderline cases of art occur in non-art categories, the debate of artistic status arises not only with regard to the individual cases but also with regard to the category to which they belong. The identity of the individual case tends to be defined in connection to the category it belongs to. It tends to formulate that, if the individual case is art, then the entire category is also art, and if the category is not art, then the individual (...) case is also not art. Such a view inevitably hampers the artistic status of works arising from the non-art categories. This article argues that the individual cases and their belonging categories need not be strictly interlocking and that they could possess multiple identities depending on the context that they are present. Thus the point shifts from whether the case is or is not art in its absolute sense to ‘when’ is it art. (shrink)

This study draws on Relevance Theory, Conversation Analysis, and Politeness Theory in investigating a full range of discourse functions for hao and dui with reference to recurrent patterns, distributions, and forms of organization in a large corpus of talk. Special emphasis is placed on a comparison of hao and dui in combination with a small subset of discourse particles: in particular hao/hao le/ hao la/hao a/hao ba and dui/dui a/dui le in spoken discourse. We find that both of the markers (...) signal special sequential relatedness in talk and carry information which is relevant in determining the boundaries of conversational exchange. However, in interaction hao is used for expressing acceptance of the other speaker’s move or act, whereas dui conveys acknowledgment of the propositional content of the utterance produced by the other speaker. (shrink)

ObjectiveType 2 diabetes mellitus (T2DM) is a high risk of cognitive decline and dementia, but the underlying mechanisms are not yet clearly understood. This study aimed to explore the functional connectivity (FC) and topological properties among whole brain networks and correlations with impaired cognition and distinguish T2DM from healthy controls (HC) to identify potential biomarkers for cognition abnormalities.MethodsA total of 80 T2DM and 55 well-matched HC were recruited in this study. Subjects’ clinical data, neuropsychological tests and resting-state functional magnetic resonance (...) imaging data were acquired. Whole-brain network FC were mapped, the topological characteristics were analyzed using a graph-theoretic approach, the FC and topological characteristics of the network were compared between T2DM and HC using a general linear model, and correlations between networks and clinical and cognitive characteristics were identified. The support vector machine (SVM) model was used to identify differences between T2DM and HC.ResultsIn patients with T2DM, FC was higher in two core regions [precuneus/posterior cingulated cortex (PCC)_1 and later prefrontal cortex_1] in the default mode network and lower in bilateral superior parietal lobes (within dorsal attention network), and decreased between the right medial frontal cortex and left auditory cortex. The FC of the right frontal medial-left auditory cortex was positively correlated with the Montreal Cognitive Assessment scales and negatively correlated with the blood glucose levels. Long-range connectivity between bilateral auditory cortex was missing in the T2DM. The nodal degree centrality and efficiency of PCC were higher in T2DM than in HC (P < 0.005). The nodal degree centrality in the PCC in the SVM model was 97.56% accurate in distinguishing T2DM patients from HC, demonstrating the reliability of the prediction model.ConclusionFunctional abnormalities in the auditory cortex in T2DM may be related to cognitive impairment, such as memory and attention, and nodal degree centrality in the PCC might serve as a potential neuroimaging biomarker to predict and identify T2DM. (shrink)

Animal welfare in livestock farming is a general concept that involves many concrete ethical issues for which solutions need to be developed. To avoid disturbing the internal market, the European Union encourages market players to develop harmonized solutions to such issues. One issue is the castration of piglets without pain relief, the practice of which causes pain to piglets. Although scientists have found alternatives to replace castration without pain relief, the process of solving the castration issue has stagnated. Questions remain (...) as to why this painful castration practice has still not been addressed after three decades, how it is likely to develop in the near future, and whether it will lead to a single harmonized solution for the EU. To answer these questions, this study examines the development of the castration issue using in-depth interviews and desk research. The results show that different countries have developed different solutions at different stages of the issue’s development. For a long period, the developments did not set a course toward a single solution; most EU pork producers waited for a castration ban in Germany. Such a situation was turbulent in solving the issue because the heterogeneous EU was unlikely to agree upon on a single alternative. With the EU now taking a market-based orientation, however, solving the issue now seems more likely. More attention is needed to understand market opportunities and chain integration in this area. (shrink)

John R. Searle argues that consciousness is a biological problem, and that the subjective feature of consciousness doesn’t exclude the scientific study thereof. In this paper I attempt to show that Searle’s identification of the subjectivity of conscious experience as being merely ontologically subjective, but not epistemically subjective is problematic, as it confuses epistemic subjectivity with axiological subjectivity. Since Searle regards the distinction between epistemic subjectivity and ontological subjectivity as an important basis for scientific studies of consciousness, the unsoundness of (...) his argument weakens his advocacy of Biological Naturalism. (shrink)

In this paper, under the assumption that ZFC axiom system is consistent, the following are proved: there is no system whose object set consists of all systems; any system is not an object of itself; any system is constructed with basic elements. Based on these results, the following problems in epistemology are discussed: the feasibility of the definition of the theory so-called science of science; the existence of basic particles in the world; and the existence of absolute truths.

While there is only little transformation to the absolute power of the party-state to be detected, some grassroots democratic experiments, however, are receiving enormous attention of the world, especially village elections. Nevertheless, this preliminary exercise of democracy is widely characterized as a mixed bag of results. Since its first conduction, it has experienced immense development and bought great impact not only on different rural political institutions, but also on common mass villagers, as well as changes to the local governance. But (...) at the same time, the limitations of the factual effectiveness of these elections can hardly be underestimated and such aspects as the standardization of electoral procedures are still to be further improved. Moreover, given the wide variations across Chinese countryside and the strong oppositions from all levels, the future of China’s village elections remain hard to gauge. (shrink)

Monroe C. Beardsley has been interpreted by many theorists as advocating antiexternalism with respect to an artwork's aesthetically relevant properties, typically its meaning. According to this orthodox interpretation, the meaning of a work is not established by external or contextual factors but by what is internally present in the work. This acontextual account of meaning is challenged by contextualism, which claims that a work's identity and meaning are in part determined by contextual factors. However, a close look at textual evidence (...) shows that Beardsley actually leans toward contextualism. In particular, his speech act theory of literature compels him to hold an explicit contextualist position with respect... (shrink)

林毓材(1948~ ),云南师范大学数学系教授,任计算机科学教研室主任与研究室主任,云南省科委应用基础研究基金委员会委员,云南省软件评测委员会主任委员等职.

It is feasible to deal with the high pressures in entrepreneurship using humor. This paper studies the effect of interaction between entrepreneurs’ perception of social culture and entrepreneurial experience (including experience with entrepreneurial failure and current company performance) on coping humor of entrepreneurs with a sample of 171 entrepreneurs from Bohai Rim in China. Regression analysis revealed that entrepreneurs would be more likely to adopt coping humor when they perceived supportive social culture to entrepreneurship and had experienced entrepreneurial failure or (...) when they perceived supportive social culture to entrepreneurship and had good current business. This study contributes to the literature of the theory of humor, the culture of entrepreneurship, and entrepreneurial failure. (shrink)

We define DNA sequence by a bottom-up approach, starting with a real sequence from an actual biological sample. By providing axioms for notions of string, substring and strand, we formally define a DNA sequence, and a DNA molecule as composed of two antiparallel strands. We note that a sequence is a kind of group in which each member stands a certain relation to every other. The spatial aspects of a DNA sequence are also described.

I propose a new definition of identification in the limit, also called convergence to the truth, as a new success criterion that is meant to complement, but not replace, the classic definition due to Putnam (1963) and Gold (1967). The new definition is designed to explain how it is possible to have successful learning in a kind of scenario that the classic account ignores—the kind of scenario in which the entire infinite data stream to be presented incrementally to the learner (...) is not presupposed to completely determine the correct learning target. For example, suppose that a scientists is interested in whether all ravens are black, and that she will never observe a counterexample in her entire life. This still leaves open whether all ravens (in the universe) are black. From a purely mathematical point of view, the proposed definition of convergence to the truth employs a convergence concept that generalizes net convergence and sits in between pointwise convergence and uniform convergence. Two results are proved to suggest that the proposed definition provides a success criterion that is by no means weak: (i) Between the proposed identification in the limit and the classic one, neither implies the other. (ii) If a learning method identifies the correct target in the limit in the proposed sense, any U-shaped learning involved therein has to be essentially redundant. I conclude that we should have (at least) two success criteria that correspond to two senses of identification in the limit: the classic one and the one proposed here. They are complementary: meeting any one of the two is good; meeting both at the same time, if possible, is even better. (shrink)

State-of-the-art facial expression methods outperform human beings, especially, thanks to the success of convolutional neural networks. However, most of the existing works focus mainly on analyzing an adult’s face and ignore the important problems: how can we recognize facial expression from a baby’s face image and how difficult is it? In this paper, we first introduce a new face image database, named BabyExp, which contains 12,000 images from babies younger than two years old, and each image is with one of (...) three facial expressions. To the best of our knowledge, the proposed dataset is the first baby face dataset for analyzing a baby’s face image, which is complementary to the existing adult face datasets and can shed some light on exploring baby face analysis. We also propose a feature guided CNN method with a new loss function, called distance loss, to optimize interclass distance. In order to facilitate further research, we provide the benchmark of expression recognition on the BabyExp dataset. Experimental results show that the proposed network achieves the recognition accuracy of 87.90% on BabyExp. (shrink)

BackgroundDepression and anxiety create a large health burden and increase the risk of premature mortality. Mental health screening is vital, but more sophisticated screening and monitoring methods are needed. The Ellipsis Health App addresses this need by using semantic information from recorded speech to screen for depression and anxiety.ObjectivesThe primary aim of this study is to determine the feasibility of collecting weekly voice samples for mental health screening. Additionally, we aim to demonstrate portability and improved performance of Ellipsis’ machine learning (...) models for patients of various ages.MethodsStudy participants were current patients at Desert Oasis Healthcare, mean age 63 years. Two non-randomized cohorts participated: one with a documented history of depression within 24 months prior to the study, and the other without depression. Participants recorded 5-min voice samples weekly for 6 weeks via the Ellipsis Health App. They also completed PHQ-8 and GAD-7 questionnaires to assess for depression and anxiety, respectively.ResultsProtocol completion rate was 61% for both groups. Use beyond protocol was 27% for Group Positive and 9% for Group Negative. The Ellipsis Health App showed an AUC of 0.82 for the combined groups when compared to the PHQ-8 and GAD-7 with a threshold score of 10. Performance was high for senior participants as well as younger age ranges. Additionally, many participants spoke longer than the required 5 min.ConclusionThe Ellipsis Health App demonstrated feasibility in using voice recordings to screen for depression and anxiety among various age groups and the machine learning models using Transformer methodology maintain performance and improve over LSTM methodology when applied to the study population. (shrink)