Supra-Bayesianism is the Bayesian response to learning the opinions of others. Probability pooling constitutes an alternative response. One natural question is whether there are cases where probability pooling gives the supra-Bayesian result. This has been called the problem of Bayes-compatibility for pooling functions. It is known that in a common prior setting, under standard assumptions, linear pooling cannot be nontrivially Bayes-compatible. We show by contrast that geometric pooling can be nontrivially Bayes-compatible. Indeed, we show (...) that, under certain assumptions, geometric and Bayes-compatible pooling are equivalent. Granting supra-Bayesianism its usual normative status, one upshot of our study is thus that, in a certain class of epistemic contexts, geometric pooling enjoys a normative advantage over linear pooling as a social learning mechanism. We discuss the philosophical ramifications of this advantage, which we show to be robust to variations in our statement of the Bayes-compatibility problem. (shrink)

Much of our information comes to us indirectly, in the form of conclusions others have drawn from evidence they gathered. When we hear these conclusions, how can we modify our own opinions so as to gain the benefit of their evidence? In this paper we study the method known as geometric pooling. We consider two arguments in its favour, raising several objections to one, and proposing an amendment to the other.

Suppose several individuals (e.g., experts on a panel) each assign probabilities to some events. How can these individual probability assignments be aggregated into a single collective probability assignment? This article reviews several proposed solutions to this problem. We focus on three salient proposals: linear pooling (the weighted or unweighted linear averaging of probabilities), geometric pooling (the weighted or unweighted geometric averaging of probabilities), and multiplicative pooling (where probabilities are multiplied rather than averaged). We present axiomatic (...) characterisations of each class of pooling functions (most of them classic, but one new) and argue that linear pooling can be justified procedurally, but not epistemically, while the other two pooling methods can be justified epistemically. The choice between them, in turn, depends on whether the individuals' probability assignments are based on shared information or on private information. We conclude by mentioning a number of other pooling methods. (shrink)

We often learn the opinions of others without hearing the evidence on which they're based. The orthodox Bayesian response is to treat the reported opinion as evidence itself and update on it by conditionalizing. But sometimes this isn't feasible. In these situations, a simpler way of combining one's existing opinion with opinions reported by others would be useful, especially if it yields the same results as conditionalization. We will show that one method---upco, also known as multiplicative pooling---is specially suited (...) to this role when the opinions you wish to pool concern hypotheses about chances. The result has interesting consequences: it addresses the problem of disagreement between experts; and it sheds light on the social argument for the uniqueness thesis. (shrink)

First published in 1999. Routledge is an imprint of Taylor & Francis, an informa company.

This paper argues that management practices are more readily portable across the sectors than has often been supposed, while indicating where particular care will be needed in translation. The paper suggests, however, that political pressure for control and an epistemological bias may prove to be management's Achilles heel. Further, it examines some dilemmas in the relationship between the manager and the managed, and queries the professions' outrage at being subject to increasingly overt management.

This paper examines the cosmological theories of Francis Lodwick (1619-94), the Fellow of the Royal Society, language theorist and close associate of Robert Hooke, concentrating on some unnoticed manuscripts he wrote on this issue. It is demonstrated that Lodwick's account of creation acts as a commentary on the opening chapters of Genesis, influenced in equal measures by the new corpuscular philosophy, and by the heretical, messianic ideas of the Frenchman Isaac La Peyrere, whose Prae-Adamitae (1655) so shocked European scholars. Such (...) a conclusion emphasizes that in the case of Lodwick no clear distinction between biblical criticism and natural philosophy can be maintained, and that the theological ideas he brought to his vortical model of creation were strongly heretical. Such a situation contradicts the proposition insisted upon by early apologists for the Royal Society that the institutionalizing of scientific work would promote orthodox Christianity. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:The Neo-Idealist Reception of Kant in the Moscow Psychological SocietyRandall A. Poole*The Moscow Psychological Society, founded in 1885 at Moscow University, was the philosophical center of the revolt against positivism in the Russian Silver Age. By the end of its activity in 1922 it had played the major role in the growth of professional philosophy in Russia. 1 The Society owes its name to its founder, M. M. Troitsky (...) (1835–99), an empiricist psychologist. Although it sponsored significant psychological research, its greater importance in the history of Russian philosophy began to emerge already in 1888, when Nikolai Ia. Grot (1852–99) took over as director. Grot’s principal colleagues in the affairs of the Society included the major Russian idealist philosophers Vladimir S. Solov’ev (1853–1900), Sergei N. Trubetskoi (1862–1905), and Lev M. Lopatin (1855–1920). In 1889 the Psychological Society began publication of Russia’s first regular, specialized journal in philosophy, Questions of Philosophy and Psychology (Voprosy Filosofii i Psikhologii). Grot characterized the journal’s prevailing direction as idealist or, “in respect to method, metaphysical.” 2While the cultural revival of the Silver Age mounted a broad-based revolt against positivism, neo-idealist philosophy in the Psychological Society was distinctive in the theoretical depth of its critique. Positivism was remarkably pervasive [End Page 319] in Russia from the middle of the nineteenth century. The main characteristics of this positivist Weltanschauung were reductionism, which dismissed as a meaningless proposition (neither analytic nor empirical) the possibility of being beyond the positively-given data of sense experience, i.e., phenomena in space and time; scientism, the claim, consistent with the positivist reduction of being to natural phenomena, that the methodology of the natural sciences covered eve-rything; and utopianism, the hope that the application of natural scientific methods to man and society would make human existence as regular and well-ordered as nature. 3 The defining trait was reductionism or, in other words, naturalism or atheism: the reduction of being to nature. In ethics, epistemology, ontology, and social philosophy neo-idealism emerged as a response to these characteristics. Its development by philosophers in the Psychological Society, apart from comprising a basic chapter in the history of Russian thought, informs the European-wide revolt against positivism characteristic of fin-de-siècle culture.According to scientistic positivism, philosophy had no distinctive methodology and thus no legitimate right to exist as its own type of scientific (nauchnyi or wissenschaftlich) discipline. Empirical sciences were the only sciences; philosophy could at best serve as a field that systematized empirical research. Against these claims Russian neo-idealists sought to advance the autonomy of philosophy by showing that the positivist measure of reality was far from exhaustive and that what it did not exhaust comprised the domain of philosophy. This domain was human consciousness itself, to the extent it could be shown to be irreducible to empirical experience (the positivist sphere). Neo-idealism thus took shape as a type of philosophy of consciousness. In the inaugural issue of Questions of Philosophy and Psychology S. N. Trubetskoi published the first installment of a large essay bearing the title, “On the Nature of Human Consciousness.” “The question of the nature of consciousness is the principal question of philosophy, not only of psychology,” Trubetskoi wrote, “for in consciousness we know everything that we know.” 4 Trubetskoi and his colleagues in the Psychological Society were convinced that philosophy had to develop through specification of its own internal standards and through autonomization from the spurious criteria positivism applied externally to it. Their goal was to match, in theoretical rigor, the professionalism associated with the natural sciences by making philosophy “scientific,” but on idealist, not empirical grounds. [End Page 320]The Kantian Critique of PositivismIn their defense of the self against positivist reductionism and naturalism, neo-idealists of the Psychological Society were deeply indebted to Kant, in both epistemology and moral philosophy. This claim revises the traditional view that Russian philosophy developed without significant assistance from Kant. 5In two ways Kant’s Critique of Pure Reason defends the minimal idealist claim that not everything intellectual can be reduced to the natural (sensible or psychological), that consciousness cannot... (shrink)

Provides an integrated introduction to artificial intelligence. Develops AI representation schemes and describes their uses for diverse applications, from autonomous robots to diagnostic assistants to infobots. DLC: Artificial intelligence.

Ross Poole displays the social content of the various conceptions of morality at work in contemporary society, and casts a strikingly fresh light on such fundamental problems as the place of reason in ethics, moral objectivity and the distinction between duty and virtue. The book provides a critical account of the moral theories of a number of major philosophers, including Kant, Marx, Nietzsche, Habermas, Rawls, Gewirth and MacIntyre. It also presents a systematic critique of three of the most significant responses (...) to modernity: liberalism, nationalism and nihilism. It takes seriously the suggestion that men and women are subject to different conceptions of morality, and places the issue of gender at the centre of moral philosophy. Poole has written a valuable addition to the Ideas series. (shrink)

The jury remains out about the bottom-line relevance of organisational spirituality. This article reviews the arguments made thus far, using those sources most commonly cited as providing ‹evidence’ that organisational spirituality adds value to the bottom line. Having collated the evidence, this article offers some observation about the robustness of this existing ‹business case’. It then offers some preliminary conclusions on the literature review, examining the merits of pursuing a ‹business case’ in this field and identifying some specific questions for (...) future research. (shrink)

Two problems involving Thucydides and medicine have attracted intense treatment by classical scholars and medical men working separately or in combination. They are, first, the nature of the Athenian Plague which Thucydides describes and, second, the possibility of his having been influenced by the doctrines and outlook of Hippocrates and his followers. It is the purpose of the present paper to reconsider both these problems, to indicate some false assumptions made in the methodology of previous attempts to identify the Plague, (...) and to suggest a somewhat radical revaluation of Thucydides' approach to medical matters compared with that of Hippocrates. (shrink)

Numerous scenarios explain the origin of the eukaryote cell by fusion or endosymbiosis between an archaeon and a bacterium (and sometimes a third partner). We evaluate these hypotheses using the following three criteria. Can the data be explained by the null hypothesis that new features arise sequentially along a stem lineage? Second, hypotheses involving an archaeon and a bacterium should undergo standard phylogenetic tests of gene distribution. Third, accounting for past events by processes observed in modern cells is preferable to (...) postulating unknown processes that have never been observed. For example, there are many eukaryote examples of bacteria as endosymbionts or endoparasites, but none known in archaea. Strictly post‐hoc hypotheses that ignore this third criterion should be avoided. Applying these three criteria significantly narrows the number of plausible hypotheses. Given current knowledge, our conclusion is that the eukaryote lineage must have diverged from an ancestor of archaea well prior to the origin of the mitochondrion. Significantly, the absence of ancestrally amitochondriate eukaryotes (archezoa) among extant eukaryotes is neither evidence for an archaeal host for the ancestor of mitochondria, nor evidence against a eukaryotic host. BioEssays 29: 74–84, 2007. © 2006 Wiley Periodicals, Inc. (shrink)

Prokaryotes are generally assumed to be the oldest existing form of life on earth. This assumption, however, makes it difficult to understand certain aspects of the transition from earlier stages in the origin of life to more complex ones, and it does not account for many apparently ancient features in the eukaryotes. From a model of the RNA world, based on relic RNA species in modern organisms, one can infer that there was an absolute requirement for a high-accuracy RNA replicase (...) even before proteins evolved. In addition, we argue here that the ribosome (together with the RNAs involved in its assembly) is so large that it must have had a prior function before protein synthesis. A model that connects and equates these two requirements (high-accuracy RNA replicase and prior function of the ribosome) can explain many steps in the origin of life while accounting for the observation that eukaryotes have retained more vestiges of the RNA world. The later derivation of prokaryote RNA metabolism and genome structure can be accounted for by the two complementary mechanisms of r-selection and thermoreduction. BioEssays 21:880–889, 1999. © 1999 John Wiley & Sons, Inc. (shrink)

Nation and Identity provides a concise and comprehensive account of the place of national identity in modern life. Ross Poole argues that the nation became a fundamental organising principle of social, political and moral life during the period of early modernity and that is has provided the organising principle of much liberal, republican and democratic thought. Ross Poole offers us a new and urgently needed analysis of the concept of identity, arguing that we are now in a position to envisage (...) the end of nationalism. We see that the impact of issues like multiculturalism, republicanism, and indigenous rights have made it very difficult to see how the possibility of a postnational cosmopolitanism could not degenerate into a nihilistic moral universe. Nation and Identity will be a fascinating read for all those interested in issues of national identity, both politically and philosophically. (shrink)

Commentators have sometimes interpreted Arendt’s criticism of the use of measures in politics as leading to an anti-idealistic vision of politics that prioritizes sui generis action over normatively guided action. In this essay, I argue that Arendt was more ambivalent on the role of measures in politics than has often been supposed. I argue, first, that Arendt’s criticism of measures in The Human Condition extends only as far as instrumental kinds derived from extra-worldly sources, like a transcendent realm of forms (...) or an immanent realm of passions or cognitions. Second, I argue that Arendt prepares for an appropriately political conception of measures within The Human Condition, thus linking that text to her later writings on judgment where exempla are suggested as fulfilling this role. Finally, I summarize how exempla satisfy a conception of measures consistent with worldliness, plurality and natality. (shrink)

The vector product method developed in previous articles for space rotations and Lorentz transformations is extended to the cases of four-vectors, anti-symmetric tensors, and their transformations in Minkowski space. The electromagnetic fields are expressed in “six-vector” form using the notationH +iE, and this vector form is shown to be relativistically invariant. The wave equations of electromagnetism are derived using these vector products. The following three equations are deduced, which summarize electrodynamics in a compact form: (1) Maxwell's four equations expressed as (...) one, (2) the scalar and vector potential wave equations combined into one relation, and (3) the wave equations for the electric and magnetic fields and the continuity equation combined together. Space inversion, time reversal, and magnetic monopoles are also treated. (shrink)

We reflect, using a vignette, on conceptual tensions and the value judgements that lie behind difficult decisions about whether or not the older person with dementia should return home or move into long-term care following hospital admission. The paper seeks, first, to expose some of the difficulties arising from the assessment of residence capacity, particularly around the nature of evaluative judgements and conceptual tensions inherent in the legal approach to capacity. Secondly, we consider the assessment of best interests around place (...) of residence, which demonstrates significant conceptual tensions. In addition, ‘best interests’ raise issues around the perception of risk and the perceptions of the family and crucially involve the notions of autonomy and trust. Finally, we not only gesture at some practical considerations based on insights from values-based medicine, but also make the suggestion that we require tighter functional assessments of residence capacity coupled with broader judgements about best interests. (shrink)

It has been theorized that the contagion of behaviors may be related to social cognitive abilities, but empirical findings are inconsistent. We recorded young adults’ behavioral expression of contagious yawning and contagious smiling to video stimuli and employed a multi-method assessment of sociocognitive abilities including self-reported internal experience of emotional contagion, self-reported trait empathy, accuracy on a theory of mind task, and observed helping behavior. Results revealed that contagious yawners reported increases in tiredness from pre- to post-video stimuli exposure, providing (...) support for the internal experience of emotional contagion, and were more likely to provide help to the experimenter relative to non-contagious yawners. Contagious smilers showed stably high levels of self-reported happiness from pre- to post-video exposure, were more likely to provide help to the experimenter, and had increased accuracy on a theory of mind task relative to non-contagious smilers. There were no differences in self-reported trait empathy for contagious versus non-contagious yawners or smilers. Contagious yawning may be related to some basic (i.e., emotional contagion) and advanced (i.e., helping behavior) sociocognitive processes, whereas contagious smiling is related to some advanced sociocognitive processes (i.e., theory of mind and helping behavior). (shrink)

This article reports a corpus-aided ecological discourse analysis of texts from an international mining company and an environmental advocacy group regarding a proposal to build a massive open-pit copper mine in the Santa Rita Mountains of Arizona, USA. The analysis details the grammatical and semantic clusters within the controversial environmental debate and how these clusters reflect the values and beliefs of each group as well as their conceptualization of the mountains and the environment. The integration of the ecolinguistic framework with (...) corpus linguistic methods of keyword analysis as well as part of speech and semantic tag analysis facilitated the identification of clusters of linguistic features perpetuating a dominant and ultimately destructive cultural discourse that places humans in a role of dominion and authority over the environment in the company texts. In contrast, clusters within the oppositional discourse forwarded by the environmental group promote the aesthetic value of the land and a need for responsible environmental stewardship. (shrink)

Journal Name: The Law & Ethics of Human Rights Issue: Ahead of print.

An important role of memory, both individual and collective, is to remind us of what we owe to the past. To understand this role, we need to conceive memory not merely in cognitive terms, but also as what Nietzsche called "memory of the will." It is this "conative" aspect of memory which explains the link between memory and identity. There still remain problems of how to explain how a collective memory "of the will" is transmitted over long periods of time, (...) and how to explain certain familiar pathologies . In the later parts of the paper, I look at Jan Assmann's important contributions to this question. (shrink)

Oakeshott, Hayek and Schmitt are associated with a conservative reaction to the 'progressive' forces of the twentieth century. Each was an acute analyst of the juristic form of the modern state and the relationship of that form to the idea of liberty under a system of public, general law. Hayek had the highest regard for Schmitt's understanding of the rule of law state despite Schmitt's hostility to it, and he owed the distinction he drew in his own work between a (...) purpose-governed form of state and a law-governed form to Oakeshott. However, the three have until now rarely been considered together, something which will be ever more apparent as political theorists, lawyers and theorists of international relations turn to the foundational texts of twentieth-century thought at a time when debate about liberal democratic theory might appear to have run out of steam. (shrink)

Not much of this work was done at Leip ig.

This paper questions the assumption that the term 'person' designates what we essentially are or ought to be. I use Hegel to argue against Locke and Kant that personal identity is not the foundation of certain legal and moral practices but their effect; and Nietzsche to suggest that being a person is the price we pay for certain kinds of social life. The concept of a person is an abstraction from our human and embodied existence, and to assume that it (...) picks out what is central to our existence makes it impossible to understand the moral significance of birth, growth, dependence, sexuality, procreation and death. (shrink)

Since the publication of our article on Thucydides and the Plague of Athens, Dr Heinrich von Staden of Yale University has kindly drawn our attention to a paper by Eby and Evjen suggesting that the Plague was glanders. We do not think that this diagnosis can possibly be correct, though there are undoubtedly some points in its favour. The authors have argued their case as persuasively as possible, and the proposal has sufficient merit to deserve a serious reply.

This article presents a Pauli-Dirac matrix approach to Clifford Algebras. It is shown that the algebra C2 is generated by two Pauli matrices iσ2 and iσ3; C3 is generated by the three Pauli matrices σ1, σ2, σ3; C4 is generated by four Dirac matrices γ0, γ1, γ2, γ3 and C5 is generated by five Dirac matrices iγ0, iγ1, iγ2, iγ3, iγ5. The higher dimensional anticommuting matrices which generate arbitrarily high order Clifford algebras are given in closed form. The results obtained (...) with this Clifford algebra approach are compared with the vector product method which was described in a recent article [Found. Phys. 10, 531–553 (1980) by Poole, Farach and Aharonov] and with the Dirac, Rashevskii and Ramakrishnan methods of matrix generation. (shrink)