Since the late nineties there has been an increased interested in probabilistic logic learning, an area within AI that combines machine learning with logic-based knowledge representation and uncertainty reasoning. Several different formalisms for combining first-order logic with probability reasoning have been proposed, and it has been studied how models in these formalisms can be automatically learned from data. -/- This talk starts with a brief introduction to probabilistic logic learning, after which we will focus on a relatively new formalism known (...) as CP-logic. CP-logic stands for “causal probabilistic logic”. It is a knowledge representation formalism that allows us to write down rules that indicate that a certain combination of conditions may cause certain effects with a particular probability (e.g., tossing a coin may cause a result of heads or tails, each with 50% probability). Besides the fact that this formalism is interesting for knowledge representation in itself, it also offers interesting opportunities from the machine learning point of view. Indeed, given the semantics of these CP-logic programs, learning them from data amounts to extracting probabilistic causal influences from data. We will discuss recent research on learning CP-logic programs, including: algorithms for learning them; how they relate to graphical models; and applications of learning CP-logic programs. (shrink)

The relationship between Albert Einstein’s special theory of relativity and Hendrik A. Lorentz’s ether theory is best understood in terms of competing interpretations of Lorentz invariance. In the 1890s, Lorentz proved and exploited the Lorentz invariance of Maxwell’s equations, the laws governing electromagnetic fields in the ether, with what he called the theorem of corresponding states. To account for the negative results of attempts to detect the earth’s motion through the ether, Lorentz, in effect, had to assume that the laws (...) governing the matter interacting with the fields are Lorentz invariant as well. This additional assumption can be seen as a generalization of the well-known contraction hypothesis. In Lorentz’s theory, it remained an unexplained coincidence that both the laws governing fields and the laws governing matter should be Lorentz invariant. In special relativity, by contrast, the Lorentz invariance of all physical laws directly reflects the Minkowski space-time structure posited by the theory. One can use this observation to produce a common-cause argument to show that the relativistic interpretation of Lorentz invariance is preferable to Lorentz’s interpretation. (shrink)

A substantial part of my reconstruction can aheady be found, in a very condensed form, in the annotauon for the relevant pages of the Einstein-Besso manuscript in Einstein CP4: doc. 14, pp. [41— 42]. The letter to Freundlich and other correspondence from the period 1915 — 1917 that I drew on for this paper appear in Einstein CPS. I wrote this paper in the context of a larger project of the Maxplanck-Institut flir Wissenschaflsgeschichte which aims at giving the most detailed (...) reconstruction yet of Einstein's path to general relativity. My paper does not necessarily reflect the views of the other members of the group working on this project. See Renn tk Sauer 1996 for a preliminary report on the gmup's findings. (shrink)

Individuals with cerebral palsy (CP) have deficits in processing of somatosensory and proprioceptive information. To compensate for these deficits, they tend to rely on vision over proprioception in single plane upper and lower limb movements and in standing. It is not known whether this also applies to walking, an activity where the threat to balance is higher. Through this study, we used visual perturbations to understand how individuals with and without CP integrate visual input for walking balance control. Additionally, we (...) probed the balance mechanisms driving the responses to the visual perturbations. More specifically, we investigated differences in the use of ankle roll response i.e., the use of ankle inversion, and the foot placement response, i.e., stepping in the direction of perceived fall. Thirty-four participants (17 CP, 17 age-and sex-matched typically developing controls or TD) were recruited. Participants walked on a self-paced treadmill in a virtual reality environment. Intermittently, the virtual scene was rotated in the frontal plane to induce the sensation of a sideways fall. Our results showed that compared to their TD peers, the overall body sway in response to the visual perturbations was magnified and delayed in CP group, implying that they were more affected by changes in visual cues and relied more so on visual information for walking balance control. Also, the CP group showed a lack of ankle response, through a significantly reduced ankle inversion on the affected side compared to the TD group. The CP group showed a higher foot placement response compared to the TD group immediately following the visual perturbations. Thus, individuals with CP showed a dominant proximal foot placement strategy and diminished ankle roll response, suggestive of a reliance on proximal over distal control of walking balance in individuals with CP. (shrink)

In December 1984 Angela Weir and Elizabeth Wilson, two founding members of Feminist Review, published an article assessing contemporary British feminism and its relationship to the left and to class struggle. They suggested that the women's movement in general, and socialist-feminism in particular, had lost its former political sharpness. The academic focus of socialist-feminism has proved more interested in theorizing the ideological basis of sexual difference than the economic contradictions of capitalism. Meanwhile the conditions of working-class and black women have (...) been deteriorating. In this situation, they argue, feminists can only serve the general interests of women through alliance with working-class movements and class struggle. Weir and Wilson represent a minority position within the British Communist Party (the CP), which argues that ‘feminism’ is now being used by sections of the left, in particular the dominant ‘Eurocommunist’ left in the CP, to justify their moves to the right, with an accompanying attack on traditional forms of trade union militancy. Beatrix Campbell, who is aligned to the dominant position within the CP, has been one target of Weir and Wilson's criticisms. In several articles from 1978 onwards, and in her book Wigan Pier Revisited, Beatrix Campbell has presented a very different analysis of women and the labour movement. She has criticized the trade union movement as a ‘men's movement’, in the sense that it has always represented the interests of men at the expense of women. And she has described the current split within the CP as one extending throughout the left between the politics of the ‘old’ and the ‘new’: traditional labour movement politics as against the politics of those who have rethought their socialism to take into account the analysis and importance of popular social movements – in particular feminism, the peace and anti-racist movements. In reply to this debate, Anne Phillips has argued that while women's position today must be analysed in the context of the capitalist crisis, it is not reducible to the dichotomy ‘class politics’ versus ‘popular alliance’. Michèle Barrett, in another reply to Weir and Wilson, has argued that they have presented a reductionist and economistic approach to women's oppression, which caricatures rather than clarifies much of the work in which socialist-feminists have been engaged. To air these differences between socialist-feminists over the question of feminism and class politics, and to see their implications for the women's movement and the left, Feminist Review has decided to bring together the main protagonists of this debate for a fuller, more open discussion. For this discussion Feminist Review drew up a number of questions which were put to the participants by Clara Connolly and Lynne Segal. (Michèle Barrett was present in a personal capacity.) They cover the recent background to socialist-feminist politics, the relationship of feminism to Marxism, the role of feminists in le ft political parties and the labour movement, the issue of racism and the prospects for the immediate future. The discussion was lengthy and what follows is an edited version of the transcript. (shrink)

This course aims to assess the principle of compositionality (CP) and how it fits with recent developments in natural language interpretation, especially those that stress the role of context. We first try to lay down a suitable formal framework for CP, reviewing proposals by Montague, Janssen, Hendriks, Kracht and Hodges. Versions of CP of varying strength are formulated, and some recent results on the existence of compositional semantics and the (much debated) issue of the empirical import of CP discussed. (...) Complementing CP is the notion of context which, under modern (e.g. "dynamic") conceptions, not only conditions interpretation but also is transformed during interpretation. The tension between CP and context is examined relative to problems of anaphora, presupposition, idioms and ambiguity. A somewhat un-orthodox computational application of CP is suggested, emphasizing co-inductive aspects of interpretation that cut across the divide between model-theoretic and proof-theoretic approaches, and between procedural and declarative styles. (shrink)

« Hannah Arendt avait l’air enchanté, sur la piste d’un paradoxe flambant neuf. Ses yeux et son sourire avaient un éclat plus profond que celui de la tolérance, car il jaillissait d’un besoin d’aimer ce qui était étranger, et de pardonner ce qui paraissait laid, horrible, sauvage » . Le romancier précise que le..

What is given to us in conscious experience? The Given is an attempt to answer this question and in this way contribute to a general theory of mental content. The content of conscious experience is understood to be absolutely everything that is given to one, experientially, in the having of an experience. Michelle Montague focuses on the analysis of conscious perception, conscious emotion, and conscious thought, and deploys three fundamental notions in addition to the fundamental notion of content: the (...) notions of intentionality, phenomenology, and consciousness. She argues that all experience essentially involves all four things, and that the key to an adequate general theory of what is given in experience lies in giving a correct specification of the nature of these four things and the relations between them. (shrink)

Many social situations require a mental model of the knowledge, beliefs, goals, and intentions of others: a Theory of Mind (ToM). If a person can reason about other people’s beliefs about his own beliefs or intentions, he is demonstrating second-order ToM reasoning. A standard task to test second-order ToM reasoning is the second-order false belief task. A different approach to investigating ToM reasoning is through its application in a strategic game. Another task that is believed to involve the application of (...) second-order ToM is the comprehension of sentences that the hearer can only understand by considering the speaker’s alternatives. In this study we tested 40 children between 8 and 10 years old and 27 adult controls on (adaptations of) the three tasks mentioned above: the false belief task, a strategic game, and a sentence comprehension task. The results show interesting differences between adults and children, between the three tasks, and between this study and previous research. (shrink)

Do we have a duty to use moral neurointerventions to correct deficits in our moral psychology? On their surface, these technologies appear to pose worrisome risks to valuable dimensions of the self, and these risks could conceivably weigh against any prima facie moral duty we have to use these technologies. Focquaert and Schermer :139–151, 2015) argue that neurointerventions pose special risks to the self because they operate passively on the subject’s brain, without her active participation, unlike ‘active’ interventions. Some neurointerventions, (...) however, appear to be relatively unproblematic, and some appear to preserve the agent’s sense of self precisely because they operate passively. In this paper, I propose three conditions that need to be met for a medical intervention to be considered low-risk, and I say that these conditions cut across the active/passive divide. A low-risk intervention must: pass pre-clinical and clinical trials, fare well in post-clinical studies, and be subject to regulations protecting informed consent. If an intervention passes these tests, its risks do not provide strong countervailing reasons against our prima facie duty to undergo the intervention. (shrink)

Michelle Kosch examines the conceptions of free will and the foundations of ethics in the work of Kant, Schelling, and Kierkegaard. She seeks to understand the history of German idealism better by looking at it through the lens of these issues, and to understand Kierkegaard better by placing his thought in this context. Kosch argues for a new interpretation of Kierkegaard's theory of agency, that Schelling was a major influence and Kant a major target of criticism, and that both (...) the theory and the criticisms are highly relevant to contemporary debates. (shrink)

Argues that the War on Drugs and policies that deny convicted felons equal access to employment, housing, education and public benefits create a permanent under-caste based largely on race. Reprint. 12,500 first printing.

In “Can the New Tenseless Theory of Time be Saved by Individual Essences?” Smith objects to the co-reporting theory on the groundsthat, since it grants that every time “now” is tokened it expresses a unique individual essence of that time which can be apprehended only at that time, the co-reporting theory is consistent with an A-theory of time that holds that each moment of time acquires its own particular property of presentness. I argue that Smith’s conclusion does not follow, since (...) moments of time have world-indexed properties which, though distinct from the individual essences ascribed to them by the use of “now,” are expressible by the use ofdate-expressions. (shrink)

Katherine Jones, Lady Ranelagh (1615–91), Robert Boyle's older sister with whom he lived for the last 23 years of his life, has lurked in the shadows of the historical record since their deaths in...

Abraham ibn Daud’s Exalted Faith adapts to rabbinic thought and Jewish tradition the Andalusi Aristotelian model that was the framework for understanding God, man, and man’s purpose in the universe. Ibn Daud defines Jewish belief for the perplexed scholar, arguably providing a genealogy and epistemological justification for the scholarly class—based on acquisition of knowledge of the (Aristotelian) universe and culminating in achieving prophethood. The Aristotelian universe presented in the Exalted Faith offers a version of the elitism Stroumsa argues if at (...) the heart of this Jewish and Muslim scholarly class, one based in Arabic Aristotelian thought. The prevalence of Aristotelian-Farabian (Platonic) philosophy, which held as a central tenet the individual’s ability to know God by developing his intellect through speculation, seemingly offered a religious/societal model in which Jewish traditions and commandments were no longer relevant. Ibn Daud adapts this theory to reassert the necessity for Jewish traditions and to privilege Jewish scholars. to express a vision of individual and social identity for Sephardi scholars in the Diaspora. (shrink)

Kamhi offers an in-depth response to The Aesthetics Symposium (Spring 2001). In addition to answering many of the contributors' objections to What Art Is: The Esthetic Theory of Ayn Rand, she offers a critique of their own theses—in particular, Barry Vacker's claim that chaos theory is implicit in Rand's aesthetics, Jeff Riggenbach's argument that much of Rand's theory was anticipated by Susanne Langer and Stephen Pepper, and Roger Bissell's suggestion that the concept of a microcosm be applied to Rand's view (...) of the function of art. (shrink)

In Singapore, top down public education campaigns have long been a mode of governance by which the conduct of citizens is constantly regulated. This article examines how in two fairly recent campaigns, a new approach to campaign communication is used that involves media interdiscursivity, viz., the mixing of discourses and genres in which the media constitute a significant element. The present approach involves the appropriation of a popular local television character, ‘Phua Chu Kang’, in order to address the public through (...) educational rap music videos. Media interdiscursivity is based on an attempt to engage the public via a discourse of the ‘lifeworld’. The present article analyzes the ‘lifeworld’ discourse in terms of a combination of two processes, ‘informalization’ and ‘communitization’. The dual processes are examined and discussed in relation to the choice of Phua Chu Kang as an ‘ordinary’ and almost ‘real’ person, including his informal register and speech style; his use of Singlish; and his construction of ‘community.’ The presence of Singlish, in particular, is interesting because it is included as part of PCK’s public performance of the lifeworld. The article concludes by considering this form of media interdiscursivity as the government’s shrewd way of achieving its social governance goals. (shrink)

At metaphase, DNA in a human chromosome is estimated to be compacted at least 10,000 fold in length.1,2 However, the higher order mechanisms by which the chromosomes are organized in interphase and subsequently further condensed in mitosis have largely remained elusive. One generally overlooked participant in chromosome condensation is DNA replication. Many early studies of eukaryotic chromosome organization and cell fusions have suggested that DNA replication plays a role in chromosome compaction. Recent phenotypic analysis of Drosophila DNA replication mutants has (...) revitalized this old idea. In this review, the role of DNA replication in chromosome condensation will be examined. BioEssays 24:411–418, 2002. © 2002 Wiley Periodicals, Inc. (shrink)

Historians and philosophers of science have examined the relationship between language and practice for a long time. Scholars have made important contributions to the field by attending to the social, cultural and economic contexts in which scientific paradigms are created and re-created. However, this article posits that while it is true that scientific practice and the artifacts they generate are both socially and discursively constructed and therefore, inextricable from the human contexts that produce them, these artifacts are not only texts (...) to be deciphered, but material things. This essay shows that the recalcitrant material dimension of my case study, a robotic moth, shapes the results of an experiment into the laws of aerodynamics in ways incommensurate with exclusively textual and/or rhetorical critiques. (shrink)

Roughly 1.7 million people died in Cambodia from untreated disease, starvation, and execution during the Khmer Rouge reign of less than four years in the late 1970s. The regime’s brutality has come to be symbolized by the multitude of black-and-white mug shots of prisoners taken at the notorious Tuol Sleng prison, where thousands of “enemies of the state” were tortured before being sent to the Killing Fields. In Archiving the Unspeakable, Michelle Caswell traces the social life of these photographic (...) records through the lens of archival studies and elucidates how, paradoxically, they have become agents of silence and witnessing, human rights and injustice as they are deployed at various moments in time and space. From their creation as Khmer Rouge administrative records to their transformation beginning in 1979 into museum displays, archival collections, and databases, the mug shots are key components in an ongoing drama of unimaginable human suffering. Winner, Waldo Gifford Leland Award, Society of American Archivists Longlist, ICAS Book Prize, International Convention of Asia Scholars. (shrink)

When a physician employment relationship terminates, the physician–patient relationship may also be terminated by enforcement of a covenant not to compete, which typically forces the physician to leave the geographic area for a period of time. This gives rise to several ethical dilemmas. The public interest is compromised when enforcement of these covenants contributes to the shortage of physicians in the community, and individual patients are harmed when their physicians are no longer available. The authors undertook a unique study to (...) explore physician perspectives concerning the ethics of banning a physician from practice and the impact of the ban on both the physician and the physician’s patients. The results identified harmful effects that have not been raised in prior scholarly articles or reported court opinions. After reviewing the legal background of covenants not to compete, this paper presents the results of that study and concludes that resorting to the legal system for enforcement of covenants not to compete is not always the ethical course of action. (shrink)

In 1971, Günter Blobel and David Sabatini proposed a novel and quite speculative schematic model to describe how proteins might reach the proper cellular location. According to their proposal, proteins destined to be secreted from the cell contain a “signal” to direct their release. Despite the fact that Blobel and Sabatini presented their signal hypothesis as a “beautiful idea” not grounded in experimental evidence, they received criticism from other scientists who opposed such speculation. Following the publication of the 1971 model, (...) Blobel persisted in conducting experiments and revising the model to incorporate new data. In fact, over the period of 1975–1984, Blobel and colleagues published five subsequent schematic models of the signal hypothesis, each revised based on new laboratory evidence. I propose that the original 1971 model can be viewed as an epistemic creation. Additionally, analysis of the subsequent schematic diagrams over the period of 1975–1984 allows one to track Blobel’s changing conception of an epistemic object over time. Furthermore, the entire series of schematic diagrams presented by Blobel from 1971 to 1984 allow one to visualize the initial conception and subsequent reworking of a scientific theory. In 1999, Blobel was awarded the Nobel Prize in Physiology or Medicine for his work on the signal hypothesis, which was ultimately supported by experimental evidence gathered after the speculative model was published. (shrink)

This article describes a project involving 13 community focus groups on the topic of anti-racism and belonging where the researchers concluded each group with a robust discussion about how the group would prefer to receive the findings from the project. Analysis of this data, existing literature, and the practical experiences of the researchers revealed that while there are multiple “bridges” researchers can take to connect their research with community-level users, and although it is desirable to offer tailored approaches for specific (...) audiences, there are significant barriers and challenges for truly effective engagement. By describing the various factors that determined which bridges were taken, we hope to help other community-based researchers imagine new ways of mobilizing knowledge, consider promising practices to guide the connection of knowledge to the community and shine a light on the very real constraints of time, budget, personnel, and university system considerations that impact knowledge mobilization decisions. (shrink)

Cet article propose la critique d’un concept relativement nouveau en jeu dans la détention et l’exclusion des migrants « irréguliers », à savoir que l’État-nation a une « capacité d’accueil » limitée et objective quant à l’accueil des étrangers – une capacité qui, lorsqu’elle est dépassée, justifie une défense militarisée. Distincte des rationalités gouvernementales plus explicitement racistes qui ont sous-tendu les premiers quotas d’immigration aux États-Unis, la notion de « capacité d’accueil » nationale a une logique propre dans laquelle écologie (...) et économie sont rendues fatalement inextricables. L’expression « charge maximale » d’un territoire donné s’est développée dans le contexte de l’environnementalisme américain comme moyen de régulation des populations de gibier non humain et s’est ensuite transformée en un langage pour évaluer le potentiel des marchés émergents. La théorie de Freud sur les blessures psychiques commence par postuler par contre une « capacité de réception » infinie [Aufnahmefähigkeit] propre au système perceptif humain – une capacité illimitée à accueillir ce qui est extérieur, qui est à la fois la condition d’origine de la vie incarnée et ce qui doit être géré et régulé pour survivre. Les spéculations de Freud dans Au-delà du principe de plaisir aident à dissoudre une conception mythopoétique de la Vie qui est depuis devenue centrale dans l’imaginaire racial anti-immigrant. (shrink)

Awe has been defined as an emotional response to perceptually vast stimuli that overwhelm current mental structures, yet facilitate attempts at accommodation. Four studies are presented showing the information-focused nature of awe elicitors, documenting the self-diminishing effects of awe experience, and exploring the effects of awe on the content of the self-concept. Study 1 documented the information-focused, asocial nature of awe elicitors in participant narratives. Study 2 contrasted the stimulus-focused, self-diminishing nature of appraisals and feelings associated with a prototypical awe (...) experience with the self-focused appraisals and feelings associated with pride. Study 3 found that dispositional awe-proneness, but not dispositional joy or pride, was associated with low Need for Cognitive Closure, and also documented a relationship between dispositional awe and increased emphasis on membership in “universal” categories in participants’ self-concepts. Study 4 replicated the self-concept finding from Study 3 using experimentally elicited awe. Implications for future work on awe are discussed. (shrink)

The purpose of this study was to determine whether certain self-discrepancies predicted the extent to which individuals experienced suicidal ideation. The Selves Questionnaire (an idiographic measure of self-beliefs) was administered to 152 undergraduate participants, who also completed measures of hopelessness, depression, and suicidal ideation. Three kinds of self-discrepancies were associated with suicidal ideation: actual:ideal, actual:ought, and actual:ideal:future. Covariance structure analyses indicated a best-fitting model suggesting that, actual:ideal and actual:ideal:future self-discrepancies contribute to hopelessness, which in turn contributes to depression and suicidal (...) ideation. The findings suggest that self-discrepancy, as a form of negative self-evaluation, may contribute to an individual's risk for suicidal ideation. Moreover, the findings point to an integration of self-discrepancy theory with hopelessness theory. (shrink)