Approximately counting answers to conjunctive queries with disequalities and negations

Approximately counting answers to conjunctive queries with disequalities and negations

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<p>We study the complexity of approximating the number of answers to a small query 𝜑 in a large database D. We establish an exhaustive classification into tractable and intractable cases if 𝜑 is a conjunctive query possibly including disequalities and negations:</p> <br> <p>•...

書誌詳細
主要な著者:	Focke, J, Goldberg, L, Roth, M, Zivny, S
フォーマット:	Journal article
言語:	English
出版事項:	Association for Computing Machinery 2024

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