25 found
Order:
See also
Profile: Michael Morreau (University of Tromsø)
  1.  24
    The Wisdom of Collective Grading and the Effects of Epistemic and Semantic Diversity.Aidan Lyon & Michael Morreau - forthcoming - Theory and Decision.
    A computer simulation is used to study collective judgements that an expert panel reaches on the basis of qualitative probability judgements contributed by individual members. The simulated panel displays a strong and robust crowd wisdom effect. The panel's performance is better when members contribute precise probability estimates instead of qualitative judgements, but not by much. Surprisingly, it doesn't always hurt for panel members to interpret the probability expressions differently. Indeed, coordinating their understandings can be much worse.
    Direct download (4 more)  
     
    Export citation  
     
    My bibliography  
  2. Mr. Fit, Mr. Simplicity and Mr. Scope: From Social Choice to Theory Choice.Michael Morreau - 2013 - Erkenntnis (S6):1-16.
    An analogue of Arrow’s theorem has been thought to limit the possibilities for multi-criterial theory choice. Here, an example drawn from Toy Science, a model of theories and choice criteria, suggests that it does not. Arrow’s assumption that domains are unrestricted is inappropriate in connection with theory choice in Toy Science. There are, however, variants of Arrow’s theorem that do not require an unrestricted domain. They require instead that domains are, in a technical sense, ‘rich’. Since there are rich domains (...)
    Direct download (4 more)  
     
    Export citation  
     
    My bibliography   4 citations  
  3.  87
    Grading in Groups.Michael Morreau - 2016 - Economics and Philosophy 32 (2):323-352.
    Juries, committees and experts panels commonly appraise things of one kind or another on the basis of grades awarded by several people. When everybody's grading thresholds are known to be the same, the results sometimes can be counted on to reflect the graders’ opinion. Otherwise, they often cannot. Under certain conditions, Arrow's ‘impossibility’ theorem entails that judgements reached by aggregating grades do not reliably track any collective sense of better and worse at all. These claims are made by adapting the (...)
    Direct download  
     
    Export citation  
     
    My bibliography   1 citation  
  4.  79
    Theory Choice and Social Choice: Kuhn Vindicated.Michael Morreau - 2015 - Mind 124 (493):239-262.
    In a recent article, Okasha challenges Kuhn’s claim that there is no ‘neutral’ algorithm for theory choice. He argues using Arrow’s ‘impossibility’ theorem that — except under certain favourable conditions concerning the measurability and comparability of theoretical values — there are no theory choice algorithms at all, neutral or otherwise. But Okasha’s argument does not apply to important theory choice problems, among them the case of Copernican and Ptolemaic astronomy that much occupied Kuhn. The reason is that Kuhn’s choice criteria (...)
    Direct download (4 more)  
     
    Export citation  
     
    My bibliography   3 citations  
  5. It Simply Does Not Add Up: Trouble with Overall Similarity.Michael Morreau - 2010 - Journal of Philosophy 107 (9):469-490.
    Comparative overall similarity lies at the basis of a lot of recent metaphysics and epistemology. It is a poor foundation. Overall similarity is supposed to be an aggregate of similarities and differences in various respects. But there is no good way of combining them all.
    Direct download (4 more)  
     
    Export citation  
     
    My bibliography   2 citations  
  6. The Hypothetical Syllogism.Michael Morreau - 2009 - Journal of Philosophical Logic 38 (4):447-464.
    The hypothetical syllogism is invalid in standard interpretations of conditional sentences. Many arguments of this sort are quite compelling, though, and you can wonder what makes them so. I shall argue that it is our parsimony in regard to connections among events and states of affairs. All manner of things just might, for all we know, be bound up with one another in all sorts of ways. But ordinarily it is better, being simpler, to assume they are unconnected. In so (...)
    Direct download (5 more)  
     
    Export citation  
     
    My bibliography   3 citations  
  7. What Vague Objects Are Like.Michael Morreau - 2002 - Journal of Philosophy 99 (7):333-361.
    Direct download (8 more)  
     
    Export citation  
     
    My bibliography   10 citations  
  8.  77
    Fitting Words: Vague Language in Context.Alice Kyburg & Michael Morreau - 2000 - Linguistics and Philosophy 23 (6):577-597.
  9.  65
    How Common Standards Can Diminish Collective Intelligence: A Computational Study.Michael Morreau & Aidan Lyon - 2016 - Journal of Evaluation in Clinical Practice 22 (4):483-489.
    Making good decisions depends on having accurate information – quickly, and in a form in which it can be readily communicated and acted upon. Two features of medical practice can help: deliberation in groups and the use of scores and grades in evaluation. We study the contributions of these features using a multi-agent computer simulation of groups of physicians. One might expect individual differences in members’ grading standards to reduce the capacity of the group to discover the facts on which (...)
    Direct download (4 more)  
     
    Export citation  
     
    My bibliography  
  10.  61
    Measurement Scales and Welfarist Social Choice.Michael Morreau & John A. Weymark - 2016 - Journal of Mathematical Psychology 75:127-136.
    The social welfare functional approach to social choice theory fails to distinguish a genuine change in individual well-beings from a merely representational change due to the use of different measurement scales. A generalization of the concept of a social welfare functional is introduced that explicitly takes account of the scales that are used to measure well-beings so as to distinguish between these two kinds of changes. This generalization of the standard theoretical framework results in a more satisfactory formulation of welfarism, (...)
    Direct download (2 more)  
    Translate
     
     
    Export citation  
     
    My bibliography  
  11. Syntactical Treatments of Propositional Attitudes.Michael Morreau & Sarit Kraus - 1998 - Artificial Intelligence 106 (1):161-177.
    Syntactical treatments of propositional attitudes are attractive to artificial intelligence researchers. But results of Montague (1974) and Thomason (1980) seem to show that syntactical treatments are not viable. They show that if representation languages are sufficiently expressive, then axiom schemes characterizing knowledge and belief give rise to paradox. Des Rivières and Levesque (1988) characterize a class of sentences within which these schemes can safely be instantiated. These sentences do not quantify over the propositional objects of knowledge and belief. We argue (...)
    Translate
     
     
    Export citation  
     
    My bibliography  
  12.  40
    Fainthearted Conditionals.Michael Morreau - 1997 - Journal of Philosophy 94 (4):187.
  13. Other Things Being Equal.Michael Morreau - 1999 - Philosophical Studies 96 (2):163Ð182.
  14.  60
    Supervaluation Can Leave Truth-Value Gaps After All.Michael Morreau - 1999 - Journal of Philosophy 96 (3):148 - 156.
    Among other good things, supervaluation is supposed to allow vague sentences to go without truth values. But Jerry Fodor and Ernest Lepore have recently argued that it cannot allow this - not if it also respects certain conceptual truths. The main point I wish to make here is that they are mistaken. Supervaluation can leave truth-value gaps while respecting the conceptual truths they have in mind.
    Direct download (7 more)  
     
    Export citation  
     
    My bibliography   2 citations  
  15.  53
    Prima Facie and Seeming Duties.Michael Morreau - 1996 - Studia Logica 57 (1):47 - 71.
    Sir David Ross introduced prima facie duties, or acts with a tendency to be duties proper. He also spoke of general prima facie principles, wwhich attribute to acts having some feature the tendency to be a duty proper. Like Utilitarians from Mill to Hare, he saw a role for such principles in the epistemology of duty: in the process by means of which, in any given situation, a moral code can help us to find out what we ought to do.After (...)
    Direct download (6 more)  
     
    Export citation  
     
    My bibliography   2 citations  
  16.  31
    Epistemic Semantics for Counterfactuals.Michael Morreau - 1992 - Journal of Philosophical Logic 21 (1):33 - 62.
  17.  44
    The Negative Ramsey Test.Peter Gärdenfors, Sten Lindström, Michael Morreau & Wlodek Rabinowicz - 1991 - In André Fuhrmann & Michael Morreau (eds.), The Logic of Theory Change. Springer.
    The so called Ramsey test is a semantic recipe for determining whether a conditional proposition is acceptable in a given state of belief. Informally, it can be formulated as follows: (RT) Accept a proposition of the form "if A, then C" in a state of belief K, if and only if the minimal change of K needed to accept A also requires accepting C. In Gärdenfors (1986) it was shown that the Ramsey test is, in the context of some other (...)
    Direct download  
    Translate
     
     
    Export citation  
     
    My bibliography   2 citations  
  18.  33
    Arrow's Theorem.Michael Morreau - 2014 - Stanford Encyclopedia of Philosophy: N/A.
    Kenneth Arrow’s “impossibility” theorem—or “general possibility” theorem, as he called it—answers a very basic question in the theory of collective decision-making. Say there are some alternatives to choose among. They could be policies, public projects, candidates in an election, distributions of income and labour requirements among the members of a society, or just about anything else. There are some people whose preferences will inform this choice, and the question is: which procedures are there for deriving, from what is known or (...)
    Direct download  
     
    Export citation  
     
    My bibliography  
  19.  22
    The Logic of Theory Change.André Fuhrmann & Michael Morreau (eds.) - 1991 - Springer.
    The book presents the results of the joint annual conference of the four Operations Research Societies DGOR, GM\OR, \GOR and SVOR, held in Vienna in 1990.
    Direct download  
    Translate
     
     
    Export citation  
     
    My bibliography   2 citations  
  20.  18
    For the Sake of the Argument.Michael Morreau - 1998 - Journal of Philosophy 95 (10):540-546.
    Direct download (4 more)  
     
    Export citation  
     
    My bibliography  
  21.  14
    Review of Isaac Levi, For the Sake of the Argument: Ramsey Test Conditionals, Inductive Inference and Nonmonotonic Reasoning. [REVIEW]Michael Morreau - 1998 - Journal of Philosophy 95 (10):540-546.
  22.  1
    For the Sake of the Argument: Ramsey Test Conditionals, Inductive Inference, and Nonmonotonic Reasoning. [REVIEW]Michael Morreau - 1998 - Journal of Philosophy 95 (10):540-546.
    No categories
    Direct download  
     
    Export citation  
     
    My bibliography  
  23.  2
    Kees van Deemter and Stanley Peters ,Semantic Ambiguity and Under Specification. [REVIEW]Michael Morreau - 1999 - Pragmatics and Cognition 7 (1):219-223.
    Direct download (3 more)  
     
    Export citation  
     
    My bibliography  
  24. Kees van Deemter and Stanley Peters ,Semantic Ambiguity and Under Specification.Michael Morreau - 1999 - Pragmatics and Cognitionpragmatics and Cognition 7 (1):219-223.
    No categories
    Direct download (2 more)  
     
    Export citation  
     
    My bibliography  
  25. Other Things Being Equal.Michael Morreau - 2004 - Philosophical Studies 96 (2):163-181.
    No categories
    Direct download  
     
    Export citation  
     
    My bibliography