We propose a novel edge detector in the presence of Gaussian noise with the use of proximal support vector machine. The edges of a noisy image are detected using a two-stage architecture: smoothing of image is first performed using regularized anisotropic diffusion, followed by the classification using PSVM, termed as regularized anisotropic diffusion-based PSVM method. In this process, a feature vector is formed for a pixel using the denoised coefficient’s class and the local orientations to detect edges in all possible (...) directions in images. From the experiments, conducted on both synthetic and benchmark images, it is observed that our RAD-PSVM approach outperforms the other state-of-the-art edge detection approaches, both qualitatively and quantitatively. (shrink)

A Bayesian approach using wavelet coefficient modeling is proposed for de-noising additive white Gaussian noise in medical magnetic resonance imaging. In a parallel acquisition process, the magnetic resonance image is affected by white Gaussian noise, which is additive in nature. A normal inverse Gaussian probability distribution function is taken for modeling the wavelet coefficients. A Bayesian approach is implemented for filtering the noisy wavelet coefficients. The maximum likelihood estimator and median absolute deviation estimator are used to find the signal parameters, (...) signal variances, and noise variances of the distribution. The minimum mean square error estimator is used for estimating the true wavelet coefficients. The proposed method is simulated on MRI. Performance and image quality parameters show that the proposed method has the capability to reduce the noise more effectively than other state-of-the-art methods. The proposed method provides 8.83%, 2.02%, 6.61%, and 30.74% improvement in peak signal-to-noise ratio, structure similarity index, Pratt’s figure of merit, and Bhattacharyya coefficient, respectively, over existing well-accepted methods. The effectiveness of the proposed method is evaluated by using the mean squared difference parameter. MSD shows the degree of dissimilarity and is 0.000324 for the proposed method, which is less than that of the other existing methods and proves the effectiveness of the proposed method. Experimental results show that the proposed method is capable of achieving better signal-to-noise ratio performance than other tested de-noising methods. (shrink)

Spanning forty years of Ray's career, these essays, for the first time collected in one volume, present the filmmaker's reflections on the art and craft of the cinematic medium and include his thoughts on sentimentalism, mass culture, ...

Prof. G.C. Pande in his work ‘ Studies in the Origins of Buddhism ’ speaks of the theory of relation ( paccaya) while discussing the principle of dependent origination ( paṭiccasamuppāda ). Theory of relation ( paccaya) is a law explaining the existence of the dhammas , being related by some relations. It is further extension of the law of dependent origination ( paṭiccasamuppāda ). Things come to existence in our day-to-day life. The law of dependent origination explains that they (...) come into existence; depending upon some other factors. The theory of relation explains that such dependence on the other dhammas is possible due to some relations. In other words, Paṭiccasamuppāda explains the process of existence of conditioned things. The relation ( paccaya ) explains the relation existing between different phases coming into existence. Such relations are also explained in conditioned things only. (shrink)

This monograph introduces the functional characteristics and conceptual significance of a simulation software system called CyberRat (Ray, 1996a, 2003a, 2012a, 2012b). CyberRat expands upon prior illustrations (Ray & Delprato, 1989; Ray, 1992) of how such computer-based simulations can serve to formatively enhance, and eventually validate, the descriptive research methodology upon which their development relies. To illustrate this process I also review highlights of previous publications (cf. Ray & Brown, 1975, 1976; Ray & Delprato, 1989), detailing the unique research methodology used (...) to collect data that guided CyberRat’s development. This methodology integrates interbehavioral psychology (Kantor, 1959) and general systems analysis (von Bertalanffy, 1968), and thus is referred to as interbehavioral systems analysis (IBSA). CyberRat’s validation of IBSA methods involves a process analogous to Turing’s (1950) famous test for simulation authenticity, in that it relies upon “phenomenological equivalence” criteria for observers to compare experiences of real vs. simulated events. And because IBSA stresses three convergent strategies for research, including structural analysis, functional analysis, and operations analysis, my organizing theme addresses how closely CyberRat comes to passing a trilogy of hypothetical Turing tests—one for each of these three analytic strategies. (shrink)

Ray examines the central questions that arise from the ideas of Einstein, Leibniz and Newton.

This book provides a comprehensive, up-to-date and accessible introduction to the philosophy of space and time. Ray considers in detail the central questions of space and time which arizse from the ideas of Zeno, Newton, Mach, Leibniz and Einstein. _Time, Space and Philosophy_ extends the debate in many areas:absolute simultaneity is examined as well as black holes, the big bang and even time travel. _Time, Space and Philosophy_ will be invaluable to the student of philosophy and science and will be (...) of considerable interest to mathematics students. The clear, non-technical approach should also make it suitable to for the general reader. (shrink)

This book provides a comprehensive, up-to-date and accessible introduction to the philosophy of space and time. Ray considers in detail the central questions of space and time which arizse from the ideas of Zeno, Newton, Mach, Leibniz and Einstein. _Time, Space and Philosophy_ extends the debate in many areas:absolute simultaneity is examined as well as black holes, the big bang and even time travel. _Time, Space and Philosophy_ will be invaluable to the student of philosophy and science and will be (...) of considerable interest to mathematics students. The clear, non-technical approach should also make it suitable to for the general reader. (shrink)

In this book, Deep K. Datta-Ray strives to explore some of the deep foundations of Indian diplomacy with and beyond the discourse of modernity, especially its preoccupation with power, control, and violence. Datta-Ray argues that modern diplomacy is rooted in a model of violence and control, and Indian diplomacy is striving to move beyond this. Indian diplomacy draws inspiration from the civilizational ethos of and preoccupation of India with dharma, right conduct, and a non-violent way of being with the world. (...) For Datta-Ray, the Indian approach to diplomacy, as it draws from the civilizational steams of the Ramayana and Mahabharata as well as Indo-Mughal experiments in creative diplomacy and Gandhian and Nehruvian... (shrink)

In his classic 1936 essay "On the Concept of Logical Consequence", Alfred Tarski used the notion of satisfaction to give a semantic characterization of the logical properties. Tarski is generally credited with introducing the model-theoretic characterization of the logical properties familiar to us today. However, in his book, The Concept of Logical Consequence, Etchemendy argues that Tarski's account is inadequate for quite a number of reasons, and is actually incompatible with the standard model-theoretic account. Many of his criticisms are meant (...) to apply to the model-theoretic account as well. In this paper, I discuss the following four critical charges that Etchemendy makes against Tarski and his account of the logical properties: (1) (a) Tarski's account of logical consequence diverges from the standard model-theoretic account at points where the latter account gets it right. (b) Tarski's account cannot be brought into line with the model-theoretic account, because the two are fundamentally incompatible. (2) There are simple counterexamples (enumerated by Etchemendy) which show that Tarski's account is wrong. (3) Tarski committed a modal fallacy when arguing that his account captures our pre-theoretical concept of logical consequence, and so obscured an essential weakness of the account. (4) Tarski's account depends on there being a distinction between the "logical terms" and the "non-logical terms" of a language, but (according to Etchemendy) there are very simple (even first-order) languages for which no such distinction can be made. Etchemendy's critique raises historical and philosophical questions about important foundational work. However, Etchemendy is mistaken about each of these central criticisms. In the course of justifying that claim, I give a sustained explication and defense of Tarski's account. Moreover, since I will argue that Tarski's account and the model theoretic account really do come to the same thing, my subsequent defense of Tarski's account against Etchemendy's other attacks doubles as a defense against criticisms that would apply equally to the familiar model-theoretic account of the logical properties. (shrink)

Intellectualist theories attempt to assimilate know how to propositional knowledge and, in so doing, fail to properly explain the close relation know how bears to action. I develop here an anti-intellectualist theory that is warranted, I argue, because it best accounts for the difference between know how and mere “armchair knowledge.” Know how is a mental state characterized by a certain world-to-mind direction of fit (though it is non-motivational) and attendant functional role. It is essential of know how, but not (...) propositional knowledge, that it makes possible performance errors and has the functional role of guiding action. The theory is attractive, in part, because it allows for propositional, non-propositional and perhaps even non-representational varieties of know how. (shrink)

The Unified Medical Language System and the Gene Ontology are among the most widely used terminology resources in the biomedical domain. However, when we evaluate them in the light of simple principles for wellconstructed ontologies we find a number of characteristic inadequacies. Employing the theory of granular partitions, a new approach to the understanding of ontologies and of the relationships ontologies bear to instances in reality, we provide an application of this theory in relation to an example drawn from the (...) context of the pathophysiology of hypertension. This exercise is designed to demonstrate how, by taking ontological principles into account we can create more realistic biomedical ontologies which will also bring advantages in terms of efficiency and robustness of associated software applications. (shrink)

In this paper, we outline an approach to giving extensional truth-theoretic semantics for what have traditionally been seen as opaque sentential contexts. We outline an approach to providing a compositional truth-theoretic semantics for opaque contexts which does not require quantifying over intensional entities of any kind, and meets standard objections to such accounts. The account we present aims to meet the following desiderata on a semantic theory T for opaque contexts: (D1) T can be formulated in a first-order extensional language; (...) (D2) T does not require quantification over intensional entities­i.e., meanings, propositions, properties, relations, or the like­in its treatment of opaque contexts; (D3) T captures the entailment relations that hold in virtue of form between sentences in the language for which it is a theory; (D4) T has a finite number of axioms. If the approach outlined here is correct, it resolves a longstanding complex of problems in metaphysics, the philosophy of mind and the philosophy of language. (shrink)

A sorites argument is a symptom of the vagueness of the predicate with which it is constructed. A vague predicate admits of at least one dimension of variation (and typically more than one) in its intended range along which we are at a loss when to say the predicate ceases to apply, though we start out confident that it does. It is this feature of them that the sorites arguments exploit. Exactly how is part of the subject of this paper. (...) The majority of philosophers writing on vagueness take it to be a kind of semantic phenomenon. If we are right, they are correct in this assumption, which is surely the default position, but they have not so far provided a satisfactory account of the implications of this or a satisfactory diagnosis of the sorites arguments. Other philosophers have urged more exotic responses, which range from the view that the fault lies not in our language, but in the world, which they propose to be populated with vague objects which our semantics precisely reflects, to the view that the world and language are both perfectly in order, but that the fault lies with our knowledge of the properties of the words we use (epistemicism). In contrast to the exotica to which some philosophers have found themselves driven in an attempt to respond to the sorites puzzles, we undertake a defense of the commonsense view that vague terms are semantically vague. Our strategy is to take fresh look at the phenomenon of vagueness. Rather than attempting to adjudicate between different extant theories, we begin with certain pre-theoretic intuitions about vague terms, and a default position on classical logic. The aim is to see whether (i) a natural story can be told which will explain the vagueness phenomenon and the puzzling nature of soritical arguments, and, in the course of this, to see whether (ii) there arises any compelling pressure to give up the natural stance. We conclude that there is a simple and natural story to be told, and we tell it, and that there is no good reason to abandon our intuitively compelling starting point. The importance of the strategy lies in its dialectical structure. Not all positions on vagueness are on a par. Some are so incredible that even their defenders think of them as positions of last resort, positions to which we must be driven by the power of philosophical argument. We aim to show that there is no pressure to adopt these incredible positions, obviating the need to respond to them directly. If we are right, semantic vagueness is neither surprising, nor threatening. It provides no reason to suppose that the logic of natural languages is not classical or to give up any independently plausible principle of bivalence. Properly understood, it provides us with a satisfying diagnosis of the sorites argumentation. It would be rash to claim to have any completely novel view about a topic so well worked as vagueness. But we believe that the subject, though ancient, still retains its power to inform and challenge us. In particular, we will argue that taking seriously the central phenomenon of predicate vagueness—the “boundarylessness” of vague predicates—on the commonsense assumption that vagueness is semantic, leads ineluctably to the view that no sentences containing vague expressions (henceforth ‘vague sentences’) are truth-evaluable. This runs counter to much of the literature on vagueness, which commonly assumes that, though some applications of vague predicates to objects fail to be truth-evaluable, in clear positive and negative cases vague sentences are unproblematically true or false. It is clarity on this, and related points, that removes the puzzles associated with vagueness, and helps us to a satisfying diagnosis of why the sorites arguments both seem compelling and yet so obviously a bit of trickery. We give a proof that semantically vague predicates neither apply nor fail-to-apply to anything, and that consequently it is a mistake to diagnose sorites arguments, as is commonly done, by attempting to locate in them a false premise. Sorites arguments are not sound, but not unsound either. We offer an explanation of their appeal, and defend our position against a variety of worries that might arise about it. The plan of the paper is as follows. We first introduce an important distinction in terms of which we characterize what has gone wrong with vague predicates. We characterize what we believe to be our natural starting point in thinking about the phenomenon of vagueness, from which only a powerful argument should move us, and then trace out the consequences of accepting this starting point. We consider the charge that among the consequences of semantic vagueness are that we must give up classical logic and the principle of bivalence, which has figured prominently in arguments for epistemicism. We argue there are no such consequences of our view: neither the view that the logic of natural languages is classical, nor any plausible principle of bivalence, need be given up. Next, we offer a diagnosis of what has gone wrong in sorites arguments on the basis of our account. We then present an argument to show that our account must be accepted on pain of embracing (in one way or another) the epistemic view of “vagueness”, i.e., of denying that there are any semantically vague terms at all. Next, we discuss some worries that may arise about the intelligibility of our linguistic practices if our account is correct. We argue none of these worries should force us from our intuitive starting point. Finally, we cast a quick glance at other forms of semantic incompleteness. (shrink)

Abduction is or subsumes a process of inference. It entertains possible hypotheses and it chooses hypotheses for further scrutiny. There is a large literature on various aspects of non-symbolic, subconscious abduction. There is also a very active research community working on the symbolic (logical) characterisation of abduction, which typically treats it as a form of hypothetico-deductive reasoning. In this paper we start to bridge the gap between the symbolic and sub-symbolic approaches to abduction. We are interested in benefiting from developments (...) made by each community. In particular, we are interested in the ability of non-symbolic systems (neural networks) to learn from experience using efficient algorithms and to perform massively parallel computations of alternative abductive explanations. At the same time, we would like to benefit from the rigour and semantic clarity of symbolic logic. We present two approaches to dealing with abduction in neural networks. One of them uses Connectionist Modal Logic and a translation of Horn clauses into modal clauses to come up with a neural network ensemble that computes abductive explanations in a top-down fashion. The other combines neural-symbolic systems and abductive logic programming and proposes a neural architecture which performs a more systematic, bottom-up computation of alternative abductive explanations. Both approaches employ standard neural network architectures which are already known to be highly effective in practical learning applications. Differently from previous work in the area, our aim is to promote the integration of reasoning and learning in a way that the neural network provides the machinery for cognitive computation, inductive learning and hypothetical reasoning, while logic provides the rigour and explanation capability to the systems, facilitating the interaction with the outside world. Although it is left as future work to determine whether the structure of one of the proposed approaches is more amenable to learning than the other, we hope to have contributed to the development of the area by approaching it from the perspective of symbolic and sub-symbolic integration. (shrink)

Biomedical research has increased in magnitude over the last two decades. Increasing number of researchers has led to increase in competition for scarce resources. Researchers have often tried to take the shortest route to success which may involve performing fraudulent research. Science suffers from unethical research as much time, effort and cost is involved in exposing fraud and setting the standards right. It is better for all students of science to be aware of the methods used in fraudulent research so (...) that such research can be detected early. Biomedical research is one area that seems to have attracted maximum numbers of fraudulent researchers; hence this article devotes itself to biomedical research scenario. (shrink)

I offer an interpretation of a familiar, but poorly understood portion of Tarskis work on truth – bringing to light a number of unnoticed aspects of Tarskis work. A serious misreading of this part of Tarski to be found in Scott Soames Understanding Truth is treated in detail. Soamesreading vies with the textual evidence, and would make Tarskis position inconsistent in an unsubtle way. I show that Soames does not finally have a coherent interpretation of Tarski. This is unfortunate, since (...) Soames ultimately arrogates to himself a key position that he has denied to Tarski and which is rightfully Tarskis own. (shrink)

The paper develops value based management guidelines from the famous Indian treatise on management, Kautilya's Arthashastra. Guidelines are given for individual components of a total framework in detail, which include guidelines for organizational philosophy, value based leadership, internal corporate culture, accomplishment of corporate purpose and feedback from stakeholders.

Famously, Saul Kripke proposes that there are contingent a priori truths, and has offered a number of examples to illustrate his claim. The most well-known example involves the standard meter bar in Paris. Purportedly, a certain agent knows a priori that the bar is one meter long. However, in response to a long-standing objection to such examples - the "existential complaint" - generally only modified examples having a conditional form are now considered candidates for the contingent a priori. Gareth Evans (...) argues that these conditionals must be understood free-logically, and on this basis argues against Keith Donnellan's analysis of the contingent a priori. I show Evans' argument mistaken. I also take issue with the existential complaint, and suggest a way of understanding Kripke's original examples that is not subject to it. My approach focuses the debate in its right place, and allows us to take Kripke's original examples seriously. (shrink)

Stephen Schiffer has argued that natural languages do not have compositional semantics. But it has been widely held that compositional semantics is required in order to explain how it is possible that we have the linguistic capacities that we do. In particular, our use of natural languages is productive in the sense that there are indefinitely many sentences that we have never heard or considered before, but which we are nonetheless capable of understanding. How is this possible? Compositionality evidently supplies (...) a clear answer to that question, because it guarantees that there is some way of determining the meaning of each sentence of the language from a fixed and finite base of semantic value assignments. This poses a serious challenge to Schiffer's negative thesis. -/- Schiffer proposes to answer this challenge in a way that will also provide a solution to the language-relation problem. This is the problem of specifying what relation must obtain between a population P and a language L in order for L to be a language of P. Schiffer's strategy is to reduce the problem for public languages to that of specifying the language-relation for languages of thought-specifying what it is to think in a language. -/- I will show in a precise way that Schiffer has neither met the productivity challenge nor solved the language-relation problem. Using Schiffer's characterization of what it is to think in a language, I show that if an agent thinks in some language L, then there is an infinity of languages that the agent also thinks in with the very same sentence tokens, but with arbitrarily different meanings. Thus, Schiffer has clearly not given a sufficient condition for an agent to think in a language, and Schiffer cannot do with less than a sufficient condition. Moreover, I will argue that Schiffer cannot avail himself of various attempts in the literature to address similar problems. (shrink)

Tumors, abscesses, cysts, scars, fractures are familiar types of what we shall call pathological continuant entities. The instances of such types exist always in or on anatomical structures, which thereby become transformed into pathological anatomical structures of corresponding types: a fractured tibia, a blistered thumb, a carcinomatous colon. In previous work on biomedical ontologies we showed how the provision of formal definitions for relations such as is_a, part_of and transformation_of can facilitate the integration of such ontologies in ways which have (...) the potential to support new kinds of automated reasoning. We here extend this approach to the treatment of pathologies, focusing especially on those pathological continuant entities which arise when organs become affected by carcinomas. (shrink)

The Foundational Model of Anatomy (FMA) is a map of the human body. Like maps of other sorts – including the map-like representations we find in familiar anatomical atlases – it is a representation of a certain portion of spatial reality as it exists at a certain (idealized) instant of time. But unlike other maps, the FMA comes in the form of a sophisticated ontology of its objectdomain, comprising some 1.5 million statements of anatomical relations among some 70,000 anatomical kinds. (...) It is further distinguished from other maps in that it represents not some specific portion of spatial reality (say: Leeds in 1996), but rather the generalized or idealized spatial reality associated with a generalized or idealized human being at some generalized or idealized instant of time. It will be our concern in what follows to outline the approach to ontology that is represented by the FMA and to argue that it can serve as the basis for a new type of anatomical information science. We also draw some implications for our understanding of spatial reasoning and spatial ontologies in general. (shrink)

In his 1993 Nicod Lectures (The Elm & the Expert), Jerry Fodor proposed a solution to a certain version of the problem of 'inscrutability of reference', which problem poses a challenge to a certain naturalistic, computational approach to cognition which Fodor has favored. The problem is that a purely informational account of an agent's mental contents cannot discriminate meanings finely enough. Fodor proposes a strategy of solution which appeals to the inferential dispositions of agents to discriminate contents more finely. After (...) a brief exposition of the problem and Fodor's bid for solution, I employ three counterexamples to argue that Fodor's proposal cannot succeed. (shrink)

The problem with model-theoretic modal semantics is that it provides only the formal beginnings of an account of the semantics of modal languages. In the case of non-modal language, we bridge the gap between semantics and mere model theory, by claiming that a sentence is true just in case it is true in an intended model. Truth in a model is given by the model theory, and an intended model is a model which has as domain the actual objects of (...) discourse, and which relates these objects in an appropriate manner. However, the same strategy applied to the modal case seems to require an intended modal model whose domain includes mere possibilia. Building on recent work by Christopher Menzel (Synthese 85 (1990)), I give an account of model-theoretic semantics for modal languages which does not require mere possibilia or intensional entities of any kind. Menzel has offered a representational account of model-theoretic modal semantics that accords with actualist scruples, since it does not require possibilia. However, Menzel's view is in the company of other actualists who seek to eliminate possible worlds, but whose accounts tolerate other sorts of abstract, intensional entities, such as possible states of affairs. Menzel's account crucially depends on the existence of properties and relations in intension. I offer a purely extensional, representational account and prove that it does all the work that Menzel's account does. The result of this endeavor is an account of model theoretic semantics for modal languages requiring nothing but pure sets and the actual objects of discourse. Since ontologically beyond what is prima facie presupposed by the model theory itself. Thus, the result is truly an ontology-free model-theoretic semantics for modal languages. That is to say, getting genuine modal semantics out of the model theory is ontologically cost-free. Since my extensional account is demonstrably no less adequate, and yet is at the same time more ontologically frugal, it is certainly to be preferred. (shrink)

According to Nancy Cartwright, a causal law holds just when a certain probabilistic condition obtains in all test situations which in turn satisfy a set of background conditions. These background conditions are shown to be inconsistent and, on separate account, logically incoherent. I offer a corrective reformulation which also incorporates a strategy for problems like Hesslow's thrombosis case. I also show that Cartwright's recent argument for modifying the condition to appeal to singular causes fails.Proposed modifications of the theory's probabilistic condition (...) to handle effects with extreme probabilities (0 or 1) are found unsatisfactory. I propose a unified solution which also handles extreme causes. Undefined conditional probabilities give rise to three good, but non-equivalent, ways of formulating the theory. Various formulations appear in the literature. I give arguments to eliminate all but one candidate. Finally, I argue for a crucial new condition clause, and show how to extend the results beyond a simple probabilistic framework. (shrink)

Reparations is an idea whose time has come. From civilian victims of war in Iraq and South America to descendents of slaves in the US to citizens of colonized nations in Africa and south Asia to indigenous peoples around the world--these groups and their advocates are increasingly arguing for the importance of addressing historical injustices that have long been either ignored or denied. This volume contributes to these debates by focusing the attention of a group of highly distinguished international experts (...) on the ways that reparations claims figure in contemporary political and social justice movements. Four broad types of reparations claims are examined, those involving indigenous peoples, the legacy of slavery in the United States, victims of war and conflict, and colonialism. In each instance, scholars and activists argue about the character of the injustice for which reparations are owed, why it is important to take these demands seriously, and what form redress should take. The aim is not consensus but to exhibit better the complexity of the issues involved--a goal which the interdisciplinary nature of the volume furthers--as well as the importance of taking seriously both conceptual issues and the actual politics of reparations. (shrink)

According to Timothy Williamson 's epistemic view, vague predicates have precise extensions, we just don't know where their boundaries lie. It is a central challenge to his view to explain why we would be so ignorant, if precise borderlines were really there. He offers a novel argument to show that our insuperable ignorance ``is just what independently justified epistemic principles would lead one to expect''. This paper carefully formulates and critically examines Williamson 's argument. It is shown that the argument (...) does not explain our ignorance, and is not really apt for doing so. Williamson 's unjustified commitment to a controversial and crucial assumption is noted. It is also argued in three different ways that his argument is, in any case, self-defeating – the same principles that drive the argument can be applied to undermine one of its premises. Along the way, Williamson 's unstated commitment to a number of other controversial doctrines comes to light. (shrink)

We provide a methodology for the creation of ontological partitions in biomedicine and we test the methodology via an application to the phenomenon of blood pressure. An ontology of blood pressure must do justice to the complex networks of intersecting pathways in the organism by which blood pressure is regulated. To this end it must deal not only with the anatomical structures and physiological processes involved in such regulation but also with the relations between these at different levels of granularity. (...) For this purpose our ontology offers a variety of distinct partitions � of substances, processes and functions � and integrates these together within a single framework via transitive networks of part-whole and dependence relations among the entities in each of these categories. The paper concludes with a comparison of this methodology with the approaches of GOTM, KEGG, DIP and BIND and provides an outline of how the methodology is currently being applied in the field of biomedical database integration. (shrink)