FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2949420172> ?p ?o ?g. }

• W2949420172 abstract "Currently, there is renewed interest in the problem, raised by Shafer in 1985, of updating probabilities when observations are incomplete. This is a fundamental problem in general, and of particular interest for Bayesian networks. Recently, Grunwald and Halpern have shown that commonly used updating strategies fail in this case, except under very special assumptions. In this paper we propose a new method for updating probabilities with incomplete observations. Our approach is deliberately conservative: we make no assumptions about the so-called incompleteness mechanism that associates complete with incomplete observations. We model our ignorance about this mechanism by a vacuous lower prevision, a tool from the theory of imprecise probabilities, and we use only coherence arguments to turn prior into posterior probabilities. In general, this new approach to updating produces lower and upper posterior probabilities and expectations, as well as partially determinate decisions. This is a logical consequence of the existing ignorance about the incompleteness mechanism. We apply the new approach to the problem of classification of new evidence in probabilistic expert systems, where it leads to a new, so-called conservative updating rule. In the special case of Bayesian networks constructed using expert knowledge, we provide an exact algorithm for classification based on our updating rule, which has linear-time complexity for a class of networks wider than polytrees. This result is then extended to the more general framework of credal networks, where computations are often much harder than with Bayesian nets. Using an example, we show that our rule appears to provide a solid basis for reliable updating with incomplete observations, when no strong assumptions about the incompleteness mechanism are justified." @default.
• W2949420172 created "2019-06-27" @default.
• W2949420172 creator A5007090019 @default.
• W2949420172 creator A5007403791 @default.
• W2949420172 date "2003-05-27" @default.
• W2949420172 modified "2023-09-27" @default.
• W2949420172 title "Updating beliefs with incomplete observations" @default.
• W2949420172 cites W1484010841 @default.
• W2949420172 cites W1494902407 @default.
• W2949420172 cites W1528128327 @default.
• W2949420172 cites W1547322272 @default.
• W2949420172 cites W1554326315 @default.
• W2949420172 cites W1704644540 @default.
• W2949420172 cites W1882024109 @default.
• W2949420172 cites W1968293352 @default.
• W2949420172 cites W2012105789 @default.
• W2949420172 cites W2026332415 @default.
• W2949420172 cites W2027948337 @default.
• W2949420172 cites W2038584697 @default.
• W2949420172 cites W2044758663 @default.
• W2949420172 cites W2049886280 @default.
• W2949420172 cites W2055731108 @default.
• W2949420172 cites W2065504396 @default.
• W2949420172 cites W2067887313 @default.
• W2949420172 cites W2124221943 @default.
• W2949420172 cites W2126163471 @default.
• W2949420172 cites W2156577211 @default.
• W2949420172 cites W2159080219 @default.
• W2949420172 cites W2913070263 @default.
• W2949420172 cites W2913772900 @default.
• W2949420172 cites W48603238 @default.
• W2949420172 cites W92815160 @default.
• W2949420172 cites W111862439 @default.
• W2949420172 hasPublicationYear "2003" @default.
• W2949420172 type Work @default.
• W2949420172 sameAs 2949420172 @default.
• W2949420172 citedByCount "1" @default.
• W2949420172 crossrefType "posted-content" @default.
• W2949420172 hasAuthorship W2949420172A5007090019 @default.
• W2949420172 hasAuthorship W2949420172A5007403791 @default.
• W2949420172 hasConcept C105795698 @default.
• W2949420172 hasConcept C107673813 @default.
• W2949420172 hasConcept C111472728 @default.
• W2949420172 hasConcept C11413529 @default.
• W2949420172 hasConcept C119857082 @default.
• W2949420172 hasConcept C122203268 @default.
• W2949420172 hasConcept C12426560 @default.
• W2949420172 hasConcept C130648207 @default.
• W2949420172 hasConcept C138885662 @default.
• W2949420172 hasConcept C154945302 @default.
• W2949420172 hasConcept C2524010 @default.
• W2949420172 hasConcept C2777212361 @default.
• W2949420172 hasConcept C2778732403 @default.
• W2949420172 hasConcept C2781181686 @default.
• W2949420172 hasConcept C33724603 @default.
• W2949420172 hasConcept C33923547 @default.
• W2949420172 hasConcept C41008148 @default.
• W2949420172 hasConcept C49937458 @default.
• W2949420172 hasConcept C57830394 @default.
• W2949420172 hasConceptScore W2949420172C105795698 @default.
• W2949420172 hasConceptScore W2949420172C107673813 @default.
• W2949420172 hasConceptScore W2949420172C111472728 @default.
• W2949420172 hasConceptScore W2949420172C11413529 @default.
• W2949420172 hasConceptScore W2949420172C119857082 @default.
• W2949420172 hasConceptScore W2949420172C122203268 @default.
• W2949420172 hasConceptScore W2949420172C12426560 @default.
• W2949420172 hasConceptScore W2949420172C130648207 @default.
• W2949420172 hasConceptScore W2949420172C138885662 @default.
• W2949420172 hasConceptScore W2949420172C154945302 @default.
• W2949420172 hasConceptScore W2949420172C2524010 @default.
• W2949420172 hasConceptScore W2949420172C2777212361 @default.
• W2949420172 hasConceptScore W2949420172C2778732403 @default.
• W2949420172 hasConceptScore W2949420172C2781181686 @default.
• W2949420172 hasConceptScore W2949420172C33724603 @default.
• W2949420172 hasConceptScore W2949420172C33923547 @default.
• W2949420172 hasConceptScore W2949420172C41008148 @default.
• W2949420172 hasConceptScore W2949420172C49937458 @default.
• W2949420172 hasConceptScore W2949420172C57830394 @default.
• W2949420172 hasLocation W29494201721 @default.
• W2949420172 hasOpenAccess W2949420172 @default.
• W2949420172 hasPrimaryLocation W29494201721 @default.
• W2949420172 hasRelatedWork W1579533269 @default.
• W2949420172 hasRelatedWork W1963794914 @default.
• W2949420172 hasRelatedWork W1969581540 @default.
• W2949420172 hasRelatedWork W2021409761 @default.
• W2949420172 hasRelatedWork W2106142974 @default.
• W2949420172 hasRelatedWork W2121826357 @default.
• W2949420172 hasRelatedWork W2127120665 @default.
• W2949420172 hasRelatedWork W2188329770 @default.
• W2949420172 hasRelatedWork W2189332658 @default.
• W2949420172 hasRelatedWork W2259990764 @default.
• W2949420172 hasRelatedWork W2507967397 @default.
• W2949420172 hasRelatedWork W2781023956 @default.
• W2949420172 hasRelatedWork W2915833575 @default.
• W2949420172 hasRelatedWork W2922879038 @default.
• W2949420172 hasRelatedWork W2952606568 @default.
• W2949420172 hasRelatedWork W2953370575 @default.
• W2949420172 hasRelatedWork W2962778068 @default.
• W2949420172 hasRelatedWork W3099663651 @default.
• W2949420172 hasRelatedWork W3103616461 @default.

• next