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Author |
Bertossi, L. |
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Title |
Specifying and computing causes for query answers in databases via database repairs and repair-programs |
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Year |
2021 |
Publication |
Knowledge And Information Systems |
Abbreviated Journal |
Knowl. Inf. Syst. |
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Volume |
63 |
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Pages |
199–231 |
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Keywords  |
Causality; Databases; Repairs; Constraints; Answer-set programming |
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Abstract |
There is a recently established correspondence between database tuples as causes for query answers in databases and tuple-based repairs of inconsistent databases with respect to denial constraints. In this work, answer-set programs that specify database repairs are used as a basis for solving computational and reasoning problems around causality in databases, including causal responsibility. Furthermore, causes are introduced also at the attribute level by appealing to an attribute-based repair semantics that uses null values. Corresponding repair-programs are introduced, and used as a basis for computation and reasoning about attribute-level causes. The answer-set programs are extended in order to capture causality under integrity constraints. |
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Address |
[Bertossi, Leopoldo] Adolfo Ibanez Univ, Fac Engn & Sci, Santiago, Chile, Email: leopoldo.bertossi@uai.cl |
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Publisher |
Springer London Ltd |
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Language |
English |
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Edition |
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ISSN |
0219-1377 |
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Notes |
WOS:000584967200001 |
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Call Number |
UAI @ alexi.delcanto @ |
Serial |
1258 |
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