Results for 'Constraints'

999 found
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  1. Characterizing Quantum Theory in Terms of Information-Theoretic Constraints.Rob Clifton, Jeffrey Bub & Hans Halvorson - 2002 - Foundations of Physics 33 (11):1561-1591.
    We show that three fundamental information-theoretic constraints -- the impossibility of superluminal information transfer between two physical systems by performing measurements on one of them, the impossibility of broadcasting the information contained in an unknown physical state, and the impossibility of unconditionally secure bit commitment -- suffice to entail that the observables and state space of a physical theory are quantum-mechanical. We demonstrate the converse derivation in part, and consider the implications of alternative answers to a remaining open question (...)
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  2. Evidentialism and Pragmatic Constraints on Outright Belief.Dorit Ganson - 2008 - Philosophical Studies 139 (3):441 - 458.
    Evidentialism is the view that facts about whether or not an agent is justified in having a particular belief are entirely determined by facts about the agent’s evidence; the agent’s practical needs and interests are irrelevant. I examine an array of arguments against evidentialism (by Jeremy Fantl, Matthew McGrath, David Owens, and others), and demonstrate how their force is affected when we take into account the relation between degrees of belief and outright belief. Once we are sensitive to one of (...)
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  3. Typology Now: Homology and Developmental Constraints Explain Evolvability.Ingo Brigandt - 2007 - Biology and Philosophy 22 (5):709-725.
    By linking the concepts of homology and morphological organization to evolvability, this paper attempts to (1) bridge the gap between developmental and phylogenetic approaches to homology and to (2) show that developmental constraints and natural selection are compatible and in fact complementary. I conceive of a homologue as a unit of morphological evolvability, i.e., as a part of an organism that can exhibit heritable phenotypic variation independently of the organism’s other homologues. An account of homology therefore consists in explaining (...)
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  4.  34
    Deontic Constraints Are Maximizing Rules.Matthew Hammerton - forthcoming - Journal of Value Inquiry:1-18.
    Deontic constraints prohibit an agent performing acts of a certain type even when doing so will prevent more instances of that act being performed by others. In this article I show how deontic constraints can be interpreted as either maximizing or non-maximizing rules. I then argue that they should be interpreted as maximizing rules because interpreting them as non-maximizing rules results in a problem with moral advice. Given this conclusion, a strong case can be made that consequentialism provides (...)
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  5.  58
    On the Import of Constraints in Complex Dynamical Systems.Cliff Hooker - 2013 - Foundations of Science 18 (4):757-780.
    Complexity arises from interaction dynamics, but its forms are co-determined by the operative constraints within which the dynamics are expressed. The basic interaction dynamics underlying complex systems is mostly well understood. The formation and operation of constraints is often not, and oftener under appreciated. The attempt to reduce constraints to basic interaction fails in key cases. The overall aim of this paper is to highlight the key role played by constraints in shaping the field of complex (...)
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  6.  78
    Mechanistic Causation and Constraints: Perspectival Parts and Powers, Non-Perspectival Modal Patterns.Jason Winning - forthcoming - British Journal for the Philosophy of Science.
    Any successful account of the metaphysics of mechanistic causation must satisfy at least five key desiderata. In this paper, I lay out these five desiderata and explain why existing accounts of the metaphysics of mechanistic causation fail to satisfy them. I then present an alternative account which does satisfy the five desiderata. According to this alternative account, we must resort to a type of ontological entity that is new to metaphysics, but not to science: constraints. In this paper, I (...)
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  7. Time Constraints and Pragmatic Encroachment on Knowledge.Joseph Shin - 2014 - Episteme 11 (2):157-180.
    Citing some recent experimental findings, I argue for the surprising claim that in some cases the less time you have the more you know. More specifically, I present some evidence to suggest that our ordinary knowledge ascriptions are sometimes sensitive to facts about an epistemic subject's truth-irrelevant time constraints such that less is more. If knowledge ascriptions are sensitive in this manner, then this is some evidence of pragmatic encroachment. Along the way, I consider comments made by Jonathan Schaffer (...)
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  8. Uncertainty, Indeterminacy, and Agent-Centred Constraints.Douglas W. Portmore - 2017 - Australasian Journal of Philosophy 95 (2):284-298.
    Common-sense morality includes various agent-centred constraints, including ones against killing unnecessarily and breaking a promise. However, it's not always clear whether, had an agent ϕ-ed, she would have violated a constraint. And sometimes the reason for this is not that we lack knowledge of the relevant facts, but that there is no fact about whether her ϕ-ing would have constituted a constraint-violation. What, then, is a constraint-accepting theory to say about whether it would have been permissible for her to (...)
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  9. Virtue Ethics and Deontic Constraints.Mark LeBar - 2009 - Ethics 119 (4):642-671.
    One important objection to virtue ethical theories is that they apparently must account for the wrongness of a wrong action in terms of a lack of virtue (or presence of vice) in the agent, and not in terms of the effects of the action on its victim. We take such effects to ground deontic constraints on how we may act, and virtue theory appears unable to account for such constraints. I claim, however, that eudaimonist virtue theory can account (...)
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  10. Representation and Constraints: The Inverse Problem and the Structure of Visual Space.Gary Hatfield - 2003 - Acta Psychologica 114:355-378.
    Visual space can be distinguished from physical space. The first is found in visual experience, while the second is defined independently of perception. Theorists have wondered about the relation between the two. Some investigators have concluded that visual space is non-Euclidean, and that it does not have a single metric structure. Here it is argued that visual space exhibits contraction in all three dimensions with increasing distance from the observer, that experienced features of this contraction are not the same as (...)
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  11. Chaos and Constraints.Howard Nye - 2014 - In David Boersema (ed.), Dimensions of Moral Agency. Cambridge Scholars Press. pp. 14-29.
    Agent-centered constraints on harming hold that some harmful upshots of our conduct cannot be justified by its generating equal or somewhat greater benefits. In this paper I argue that all plausible theories of agent-centered constraints on harming are undermined by the likelihood that our actions will have butterfly effects, or cause cascades of changes that make the world dramatically different than it would have been. Theories that impose constraints against only intended harming or proximally caused harm have (...)
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  12.  17
    Gravity Constraints Drive Biological Systems Toward Specific Organization Patterns.Mariano Bizzarri, Maria Grazia Masiello, Alessandro Giuliani & Alessandra Cucina - 2018 - Bioessays 40 (1):1700138.
    Different cell lineages growing in microgravity undergo a spontaneous transition leading to the emergence of two distinct phenotypes. By returning these populations in a normal gravitational field, the two phenotypes collapse, recovering their original configuration. In this review, we hypothesize that, once the gravitational constraint is removed, the system freely explores its phenotypic space, while, when in a gravitational field, cells are “constrained” to adopt only one favored configuration. We suggest that the genome allows for a wide range of “possibilities” (...)
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  13.  54
    The Role of Apparent Constraints in Normative Reasoning: A Methodological Statement and Application to Global Justice.Sanjay Reddy - 2005 - Journal of Ethics 9 (1-2):119-125.
    The assumptions that are made about the features of the world that are relatively changeable by agents and those that are not (constraints) play a central role in determining normative conclusions. In this way, normative reasoning is deeply dependent on accounts of the empirical world. Successful normative reasoning must avoid the naturalization of constraints and seek to attribute correctly to agents what is and is not in their power to change. Recent discourse on global justice has often come (...)
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  14. Finding the Way in Phenotypic Space: The Origin and Maintenance of Constraints on Organismal Form.Massimo Pigliucci - 2007 - Annals of Botany 100:433-438.
    Background: One of the all-time questions in evolutionary biology regards the evolution of organismal shapes, and in particular why certain forms appear repeatedly in the history of life, others only seldom and still others not at all. Recent research in this field has deployed the conceptual framework of constraints and natural selection as measured by quantitative genetic methods. Scope: In this paper I argue that quantitative genetics can by necessity only provide us with useful statistical sum- maries that may (...)
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  15. Judgement Aggregation Under Constraints.Franz Dietrich & Christian List - 2008 - In T. Boylan & R. Gekker (eds.), Economics, Rational Choice and Normative Philosophy. London, UK: Routledge.
    In solving judgment aggregation problems, groups often face constraints. Many decision problems can be modelled in terms the acceptance or rejection of certain propositions in a language, and constraints as propositions that the decisions should be consistent with. For example, court judgments in breach-of-contract cases should be consistent with the constraint that action and obligation are necessary and sufficient for liability; judgments on how to rank several options in an order of preference with the constraint of transitivity; and (...)
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  16.  69
    The Doctrine of Double Effect and the Question of Constraints on Business Decisions.Patrick A. Tully - 2005 - Journal of Business Ethics 58 (1-3):51-63.
    . How does the doctrine of double effect apply to business decisions to sell products which may be harmful to consumers? Lawrence Masek believes that some authors have misapplied the doctrine to this type of decision and, as a consequence, have committed themselves to placing unwarranted constraints on businesses. Seeking to correct this mistake, Masek presents his account of how the doctrine applies here, an account which is rather permissive but which, he claims, nevertheless preserves the virtues of the (...)
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  17.  30
    Symbols Are Grounded Not in Things, but in Scaffolded Relations and Their Semiotic Constraints.Donald Favareau - 2015 - Biosemiotics 8 (2):235-255.
    As the accompanying articles in the Special Issue on Semiotic Scaffolding will attest, my colleagues in biosemiotics have done an exemplary job in showing us how to think about the critically generative role that semiotic scaffolding plays “vertically” – i.e., in evolutionary and developmental terms – by “allowing access to the upper floors” of biological complexity, cognition and evolution.In addition to such diachronic considerations of semiotic scaffolding, I wish to offer here a consideration of semiotic scaffolding’s synchronic power, as well (...)
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  18.  40
    Domain-Creating Constraints.Robert L. Goldstone & David Landy - 2010 - Cognitive Science 34 (7):1357-1377.
    The contributions to this special issue on cognitive development collectively propose ways in which learning involves developing constraints that shape subsequent learning. A learning system must be constrained to learn efficiently, but some of these constraints are themselves learnable. To know how something will behave, a learner must know what kind of thing it is. Although this has led previous researchers to argue for domain-specific constraints that are tied to different kinds/domains, an exciting possibility is that kinds/domains (...)
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  19.  34
    Psychological Constraints on Egalitarianism: The Challenge of Just World Beliefs.T. J. Kasperbauer - 2015 - Res Publica 21 (3):217-234.
    Debates over egalitarianism for the most part are not concerned with constraints on achieving an egalitarian society, beyond discussions of the deficiencies of egalitarian theory itself. This paper looks beyond objections to egalitarianism as such and investigates the relevant psychological processes motivating people to resist various aspects of egalitarianism. I argue for two theses, one normative and one descriptive. The normative thesis holds that egalitarians must take psychological constraints into account when constructing egalitarian ideals. I draw from non-ideal (...)
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  20. Exclusion Constraints Facilitate Statistical Word Learning.Katherine Yoshida, Mijke Rhemtulla & Athena Vouloumanos - 2012 - Cognitive Science 36 (5):933-947.
    The roles of linguistic, cognitive, and social-pragmatic processes in word learning are well established. If statistical mechanisms also contribute to word learning, they must interact with these processes; however, there exists little evidence for such mechanistic synergy. Adults use co-occurrence statistics to encode speech–object pairings with detailed sensitivity in stochastic learning environments (Vouloumanos, 2008). Here, we replicate this statistical work with nonspeech sounds and compare the results with the previous speech studies to examine whether exclusion constraints contribute equally to (...)
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  21.  55
    Constraints and the Measurement of Freedom of Choice.Sebastiano Bavetta & Marco Del Seta - 2001 - Theory and Decision 50 (3):213-238.
    This paper introduces considerations about constraints in the construction of measures of an agent's freedom. It starts with motivating the exercise from both the philosophical and the informational point of view. Then it presents two rankings of opportunity sets based on information about the extent of options and the constraints that a decision maker faces. The first ranking measures freedom as variety of choice; the second as non-restrictedness in choice.
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  22.  43
    A Puzzle About Free Speech, Legitimacy, and Countermajoritarian Constraints.Zoltan Miklosi - 2014 - Res Publica 20 (1):27-43.
    This paper argues that there is a tension between two central features of Dworkin’s partnership conception of democracy. The conception holds, on the one hand, that it is a necessary condition of the legitimacy of the decisions of a political majority that every member of the political community has a very robust right to publicly criticize those decisions. A plausible interpretation of this argument is that free political speech constitutes a normatively privileged vehicle for political minorities to become majorities, and (...)
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  23.  29
    Syntactical Constraints on Definitions.Dale Jacquette - 2013 - Metaphilosophy 44 (1-2):145-156.
    This essay considers arguments for and against syntactical constraints on the proper formalization of definitions, originally owing to Alfred Tarski. It discusses and refutes an application of the constraints generalized to include a prohibition against not only object-place but also predicate-place variables in higher-order logic in a criticism of a recent effort to define the concept of heterologicality in a strengthened derivation of Grelling's paradox within type theory requirements. If the objections were correct, they would offer a more (...)
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  24.  7
    Constraints in Organizational Learning, Cognitive Load and Its Effect on Employee Behavior.Sidharta Chatterjee - 2013 - IUP Journal of Knowledge Management 11 (4):7-19.
    Traditionally, learning organizations face certain constraints related to both exogenous and endogenous factors. This paper models three well-established constraints that employees face while being part of their organizations. One is an explicit constraint on their natural behavior, and two implicit constraints on their endeavor to acquire new knowledge and perform new actions. The implicit constraints, which are elaborated, are related to their relative performance in acquiring new knowledge and by their consecutive actions based on the new (...)
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  25.  17
    Computational Models and Empirical Constraints.Zenon W. Pylyshyn - 1978 - Behavioral and Brain Sciences 1 (1):98-128.
    It is argued that the traditional distinction between artificial intelligence and cognitive simulation amounts to little more than a difference in style of research - a different ordering in goal priorities and different methodological allegiances. Both enterprises are constrained by empirical considerations and both are directed at understanding classes of tasks that are defined by essentially psychological criteria. Because of the different ordering of priorities, however, they occasionally take somewhat different stands on such issues as the power/generality trade-off and on (...)
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  26.  39
    Soft Constraints in Interactive Behavior: The Case of Ignoring Perfect Knowledge in‐the‐World for Imperfect Knowledge in‐the‐Head*,*.Wayne D. Gray & Wai-Tat Fu - 2004 - Cognitive Science 28 (3):359-382.
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  27.  55
    Constraints for Input/Output Logics.David Makinson & Leendert van der Torre - 2001 - Journal of Philosophical Logic 30 (2):155 - 185.
    In a previous paper we developed a general theory of input/output logics. These are operations resembling inference, but where inputs need not be included among outputs, and outputs need not be reusable as inputs. In the present paper we study what happens when they are constrained to render output consistent with input. This is of interest for deontic logic, where it provides a manner of handling contrary-to-duty obligations. Our procedure is to constrain the set of generators of the input/output system, (...)
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  28. Putting Logic in its Place: Formal Constraints on Rational Belief.David Christensen - 2004 - Oxford University Press.
    What role, if any, does formal logic play in characterizing epistemically rational belief? Traditionally, belief is seen in a binary way - either one believes a proposition, or one doesn't. Given this picture, it is attractive to impose certain deductive constraints on rational belief: that one's beliefs be logically consistent, and that one believe the logical consequences of one's beliefs. A less popular picture sees belief as a graded phenomenon.
  29.  17
    Mapping Complex Social Transmission: Technical Constraints on the Evolution of Cultures.Mathieu Charbonneau - 2015 - Biology and Philosophy 30 (4):527-546.
    Social transmission is at the core of cultural evolutionary theory. It occurs when a demonstrator uses mental representations to produce some public displays which in turn allow a learner to acquire similar mental representations. Although cultural evolutionists do not dispute this view of social transmission, they typically abstract away from the multistep nature of the process when they speak of cultural variants at large, thereby referring both to variation and evolutionary change in mental representations as well as in their corresponding (...)
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  30.  7
    Three‐Legged Locomotion and the Constraints on Limb Number: Why Tripeds Do Not Have a Leg to Stand On.Tracy J. Thomson - forthcoming - Wiley: Bioessays.
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  31.  34
    On the Structuralist Constraints in Social Scientific Theorizing.Martti Kuokkanen - 1993 - Theory and Decision 35 (1):19-54.
  32. Feasibility Constraints for Political Theories.Holly Lawford-Smith - 2010 - Dissertation, Australian National University
  33.  5
    Three‐Legged Locomotion and the Constraints on Limb Number: Why Tripeds Don’T Have a Leg to Stand On.Tracy J. Thomson - 2019 - Bioessays 41 (10):1900061.
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  34.  26
    Truth, Time, and the Extended Umwelt Principle: Conceptual Limits and Methodological Constraints.Christian Steineck - 2010 - In Jo Alyson Parker, Paul Harris, Christian Steineck & Raji C. Steineck (eds.), Time: Limits and Constraints. Leiden / Boston: Brill. pp. 350-365.
    This chapter approaches the hierarchical theory of time from a philosophical point of view. It is based on a critical reading of Fraser's work through Neo-Kantian eyes. The chapter reflects upon the methodological constraints that apply to a natural philosophy of time. At the same time, it attempts to resolve some tensions between this theory's content and its epistemological and ontological foundations as stated by Fraser himself. The chapter begins with a discussion on the essential characteristics of the Neo-Kantian (...)
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  35.  16
    Island Constraints and Overgeneralization in Language Acquisition.Ben Ambridge - 2015 - Cognitive Linguistics 26 (2):361-370.
    Name der Zeitschrift: Cognitive Linguistics Jahrgang: 26 Heft: 2 Seiten: 361-370.
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  36.  15
    Contextual Constraints and the Perception of Speech.Steven Rosenberg & Wallace E. Lambert - 1974 - Journal of Experimental Psychology 102 (1):178.
  37. Consequentialism, Constraints, and Good-Relative-To.Jussi Suikkanen - 2008 - Journal of Ethics and Social Philosophy 3 (1):1-9.
    Recently, it has been a part of the so-called consequentializing project to attempt to construct versions of consequentialism that can support agent-relative moral constraints. Mark Schroeder has argued that such views are bound to fail because they cannot make sense of the agent relative value on which they need to rely. In this paper, I provide a fitting-attitude account of both agent-relative and agent-neutral values that can together be used to consequentialize agent-relative constraints.
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  38.  55
    Frames of Mind: Constraints on the Common-Sense Conception of the Mental.Adam Morton - 1980 - Oxford University Press.
    I argue that general constraints on how humans think about humans produce universal features of the concept of mind. Some of these constraints determine how we imagine other people's thinking and action through our own. I formulate this in opposition to what I call the "theory theory". I believe this was the first use of this terminology, and this work was an early version of what has come to be called the simulation theory.
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  39. Diachronic Constraints of Practical Rationality.Luca Ferrero - 2012 - Philosophical Issues 22 (1):144-164.
    In this paper, I discuss whether there are genuinely *diachronic* constraints of practical rationality, that is, pressures on combinations of practical attitudes over time, which are not reducible to mere synchronic rational pressures. Michael Bratman has recently argued that there is at least one such diachronic rational constraint that governs the stability of intentions over time. *Pace* Bratman, I argue that there are no genuinely diachronic constraints on intentions that meet the stringent desiderata set by him. But I (...)
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  40.  53
    Rethinking Causality in Biological and Neural Mechanisms: Constraints and Control.Jason Winning & William Bechtel - 2018 - Minds and Machines 28 (2).
    Existing accounts of mechanistic causation are not suited for understanding causation in biological and neural mechanisms because they do not have the resources to capture the unique causal structure of control heterarchies. In this paper, we provide a new account on which the causal powers of mechanisms are grounded by time-dependent, variable constraints. Constraints can also serve as a key bridge concept between the mechanistic approach to explanation and underappreciated work in theoretical biology that sheds light on how (...)
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  41. Economics Imperialism: Concept and Constraints.Uskali Mäki - 2009 - Philosophy of the Social Sciences 39 (3):351-380.
    The paper seeks to offer [1] an explication of a concept of economics imperialism, focusing on its epistemic aspects; and [2] criteria for its normative assessment. In regard to [1], the defining notion is that of explanatory unification across disciplinary boundaries. As to [2], three kinds of constraints are proposed. An ontological constraint requires an increased degree of ontological unification in contrast to mere derivational unification. An axiological constraint derives from variation in the perceived relative significance of the facts (...)
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  42. Immigration and the Constraints of Justice: Between Open Borders and Absolute Sovereignty.Ryan Pevnick - 2011 - Cambridge: Cambridge University Press.
    This book explores the constraints which justice imposes on immigration policy. Like liberal nationalists, Ryan Pevnick argues that citizens have special claims to the institutions of their states. However, the source of these special claims is located in the citizenry's ownership of state institutions rather than in a shared national identity. Citizens contribute to the construction and maintenance of institutions, and as a result they have special claims to these institutions and a limited right to exclude outsiders. Pevnick shows (...)
     
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  43.  16
    Artificial intelligence vs COVID-19: limitations, constraints and pitfalls.Wim Naudé - forthcoming - AI and Society:1-5.
    This paper provides an early evaluation of Artificial Intelligence against COVID-19. The main areas where AI can contribute to the fight against COVID-19 are discussed. It is concluded that AI has not yet been impactful against COVID-19. Its use is hampered by a lack of data, and by too much data. Overcoming these constraints will require a careful balance between data privacy and public health, and rigorous human-AI interaction. It is unlikely that these will be addressed in time to (...)
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  44.  87
    Probabilistic Measures of Coherence: From Adequacy Constraints Towards Pluralism.Michael Schippers - 2014 - Synthese 191 (16):3821-3845.
    The debate on probabilistic measures of coherence flourishes for about 15 years now. Initiated by papers that have been published around the turn of the millennium, many different proposals have since then been put forward. This contribution is partly devoted to a reassessment of extant coherence measures. Focusing on a small number of reasonable adequacy constraints I show that (i) there can be no coherence measure that satisfies all constraints, and that (ii) subsets of these adequacy constraints (...)
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  45. Message in the Bottle: The Constraints of Experimentation on Model Building.Jay Odenbaugh - 2006 - Philosophy of Science 73 (5):720-729.
    Some ecologists have argued that theoretical model building in population and community ecology has gone evidentially unconstrained. In the essay, I argue that "bottle experiments" offer ecological model building evidential constraints and illustrate this by considering work on chaotic models tested by the dynamics of flour beetles. Critics reply that these experiments are importantly unlike nonmanipulated natural systems and thus do not constitute genuine tests of the models. I conclude by considering two responses to this worry and a suggestion (...)
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  46.  79
    Givenness, Avoidf and Other Constraints on the Placement of Accent.Roger Schwarzschild - 1999 - Natural Language Semantics 7 (2):141-177.
    This paper strives to characterize the relation between accent placement and discourse in terms of independent constraints operating at the interface between syntax and interpretation. The Givenness Constraint requires un-F-marked constituents to be given. Key here is our definition of givenness, which synthesizes insights from the literature on the semantics of focus with older views on information structure. AvoidF requires speakers to economize on F-marking. A third constraint requires a subset of F-markers to dominate accents.The characteristic prominence patterns of (...)
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  47.  92
    Settled Objectives and Rational Constraints.Hugh J. McCann - 1991 - American Philosophical Quarterly 28 (1):25-36.
    Some authors reject what they call the "Simple View"---i.e., the principle that anyone who A's intentionally intends to A. My purpose here is to defend this principle. Rejecting the Simple View, I shall claim, forces us to assign to other mental states the functional role of intention: that of providing settled objectives to guide deliberation and action. A likely result is either that entities will be multiplied, or that the resultant account will invite reassertion of reductionist theories. In any case, (...)
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  48. Design Explanation: Determining the Constraints on What Can Be Alive.Arno G. Wouters - 2007 - Erkenntnis 67 (1):65-80.
    This paper is concerned with reasonings that purport to explain why certain organisms have certain traits by showing that their actual design is better than contrasting designs. Biologists call such reasonings 'functional explanations'. To avoid confusion with other uses of that phrase, I call them 'design explanations'. This paper discusses the structure of design explanations and how they contribute to scientific understanding. Design explanations are contrastive and often compare real organisms to hypothetical organisms that cannot possibly exist. They are not (...)
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  49.  45
    Starting a Flood to Stop a Fire? Some Moral Constraints on Solar Radiation Management.David R. Morrow - 2014 - Ethics, Policy and Environment 17 (2):123-138.
    Solar radiation management (SRM), a form of climate engineering, would offset the effects of increased greenhouse gas concentrations by reducing the amount of sunlight absorbed by the Earth. To encourage support for SRM research, advocates argue that SRM may someday be needed to reduce the risks from climate change. This paper examines the implications of two moral constraints?the Doctrine of Doing and Allowing, and the Doctrine of Double Effect?on this argument for SRM and SRM research. The Doctrine of Doing (...)
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  50.  78
    Are There Nontrivial Constraints on Colour Categorization?B. A. C. Saunders & J. van Brakel - 1997 - Behavioral and Brain Sciences 20 (2):167-179.
    In this target article the following hypotheses are discussed: (1) Colour is autonomous: a perceptuolinguistic and behavioural universal. (2) It is completely described by three independent attributes: hue, brightness, and saturation: (3) Phenomenologically and psychophysically there are four unique hues: red, green, blue, and yellow; (4) The unique hues are underpinned by two opponent psychophysical and/or neuronal channels: red/green, blue/yellow. The relevant literature is reviewed. We conclude: (i) Psychophysics and neurophysiology fail to set nontrivial constraints on colour categorization. (ii) (...)
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