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.

最近在数据库元组之间建立了对应关系，作为数据库中查询答案的原因，并且在拒绝约束方面，基于元组的不一致数据库的修复。在这项工作中，指定数据库修复的答案集程序被用作解决围绕数据库因果关系（包括因果责任）的计算和推理问题的基础。此外，通过诉诸使用空值的基于属性的修复语义，也在属性级别引入了原因。引入了相应的修复程序，并将其用作计算和推理属性级原因的基础。扩展答案集程序，以便在完整性约束下捕获因果关系。