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  1. Annals of Mathematics and Artificial Intelligence
  2. Annals of Mathematics and Artificial Intelligence : Volume 64
  3. Annals of Mathematics and Artificial Intelligence : Volume 64, Issue 2-3, March 2012
  4. Probabilistic query answering over inconsistent databases
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Annals of Mathematics and Artificial Intelligence : Volume 80
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Annals of Mathematics and Artificial Intelligence : Volume 76
Annals of Mathematics and Artificial Intelligence : Volume 75
Annals of Mathematics and Artificial Intelligence : Volume 74
Annals of Mathematics and Artificial Intelligence : Volume 73
Annals of Mathematics and Artificial Intelligence : Volume 72
Annals of Mathematics and Artificial Intelligence : Volume 71
Annals of Mathematics and Artificial Intelligence : Volume 70
Annals of Mathematics and Artificial Intelligence : Volume 69
Annals of Mathematics and Artificial Intelligence : Volume 68
Annals of Mathematics and Artificial Intelligence : Volume 67
Annals of Mathematics and Artificial Intelligence : Volume 66
Annals of Mathematics and Artificial Intelligence : Volume 65
Annals of Mathematics and Artificial Intelligence : Volume 64
Annals of Mathematics and Artificial Intelligence : Volume 64, Issue 4, April 2012
Annals of Mathematics and Artificial Intelligence : Volume 64, Issue 2-3, March 2012
Preface
Focused most probable world computations in probabilistic logic programs
Imprecise probabilistic query answering using measures of ignorance and degree of satisfaction
Probabilistic query answering over inconsistent databases
Prioritized repairing and consistent query answering in relational databases
Evaluating trustworthiness from past performances: interval-based approaches
Inference in possibilistic network classifiers under uncertain observations
Qualitative and quantitative conditions for the transitivity of perceived causation: : Theoretical and experimental results
Annals of Mathematics and Artificial Intelligence : Volume 64, Issue 1, January 2012
Annals of Mathematics and Artificial Intelligence : Volume 63
Annals of Mathematics and Artificial Intelligence : Volume 62
Annals of Mathematics and Artificial Intelligence : Volume 61
Annals of Mathematics and Artificial Intelligence : Volume 60
Annals of Mathematics and Artificial Intelligence : Volume 59
Annals of Mathematics and Artificial Intelligence : Volume 58
Annals of Mathematics and Artificial Intelligence : Volume 57
Annals of Mathematics and Artificial Intelligence : Volume 56
Annals of Mathematics and Artificial Intelligence : Volume 55
Annals of Mathematics and Artificial Intelligence : Volume 54
Annals of Mathematics and Artificial Intelligence : Volume 53
Annals of Mathematics and Artificial Intelligence : Volume 52
Annals of Mathematics and Artificial Intelligence : Volume 51
Annals of Mathematics and Artificial Intelligence : Volume 50
Annals of Mathematics and Artificial Intelligence : Volume 49
Annals of Mathematics and Artificial Intelligence : Volume 48
Annals of Mathematics and Artificial Intelligence : Volume 47
Annals of Mathematics and Artificial Intelligence : Volume 46
Annals of Mathematics and Artificial Intelligence : Volume 45
Annals of Mathematics and Artificial Intelligence : Volume 44
Annals of Mathematics and Artificial Intelligence : Volume 43
Annals of Mathematics and Artificial Intelligence : Volume 42
Annals of Mathematics and Artificial Intelligence : Volume 41
Annals of Mathematics and Artificial Intelligence : Volume 40
Annals of Mathematics and Artificial Intelligence : Volume 39
Annals of Mathematics and Artificial Intelligence : Volume 38
Annals of Mathematics and Artificial Intelligence : Volume 37
Annals of Mathematics and Artificial Intelligence : Volume 36
Annals of Mathematics and Artificial Intelligence : Volume 35
Annals of Mathematics and Artificial Intelligence : Volume 34
Annals of Mathematics and Artificial Intelligence : Volume 33
Annals of Mathematics and Artificial Intelligence : Volume 32
Annals of Mathematics and Artificial Intelligence : Volume 31
Annals of Mathematics and Artificial Intelligence : Volume 30
Annals of Mathematics and Artificial Intelligence : Volume 29
Annals of Mathematics and Artificial Intelligence : Volume 28
Annals of Mathematics and Artificial Intelligence : Volume 27
Annals of Mathematics and Artificial Intelligence : Volume 26
Annals of Mathematics and Artificial Intelligence : Volume 25
Annals of Mathematics and Artificial Intelligence : Volume 24
Annals of Mathematics and Artificial Intelligence : Volume 23
Annals of Mathematics and Artificial Intelligence : Volume 22
Annals of Mathematics and Artificial Intelligence : Volume 21
Annals of Mathematics and Artificial Intelligence : Volume 20
Annals of Mathematics and Artificial Intelligence : Volume 19

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Probabilistic query answering over inconsistent databases

Content Provider SpringerLink
Author Greco, Sergio Molinaro, Cristian
Copyright Year 2012
Abstract This paper presents a framework for querying inconsistent databases in the presence of functional dependencies. Most of the works dealing with the problem of extracting reliable information from inconsistent databases are based on the notion of repair, a minimal set of tuple insertions and deletions which leads the database to a consistent state (called repaired database), and the notion of consistent query answer, a query answer that can be obtained from every repaired database. In this work, both the notion of repair and query answer differ from the original ones. In the presence of functional dependencies, tuple deletions are the only operations that are performed in order to restore the consistency of an inconsistent database. However, deleting a tuple to remove an integrity violation potentially eliminates useful information in that tuple. In order to cope with this problem, we adopt a notion of repair, based on tuple updates, which allows us to better preserve information in the source database. A drawback of the notion of consistent query answer is that it does not allow us to discriminate among non-consistent answers, namely answers which can be obtained from a non-empty proper subset of the repaired databases. To obtain more informative query answers, we propose the notion of probabilistic query answer, that is query answers are tuples associated with probabilities. This new semantics of query answering over inconsistent databases allows us to give a measure of uncertainty to query answers. We show that the problem of computing probabilistic query answers is FP #P -complete. We also propose a technique for computing probabilistic answers to arbitrary relational algebra queries.
Ending Page 207
Page Count 23
Starting Page 185
File Format PDF
ISSN 10122443
e-ISSN 15737470
Journal Annals of Mathematics and Artificial Intelligence
Issue Number 2-3
Volume Number 64
Language English
Publisher Springer Netherlands
Publisher Date 2012-03-22
Publisher Place Dordrecht
Access Restriction Subscribed
Subject Keyword Query answering Reasoning under uncertainty Computer Science Artificial Intelligence (incl. Robotics) Probabilistic query answers Mathematics Repair Statistical Physics, Dynamical Systems and Complexity Inconsistent databases Database theory
Content Type Text
Resource Type Article
Subject Artificial Intelligence Applied Mathematics
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