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arXiv · 2012.11269

A Journey to the Frontiers of Query Rewritability

Piotr Ostropolski-Nalewaja·Jerzy Marcinkowski·David Carral·Sebastian Rudolph
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Abstract

This paper is about (first order) query rewritability in the context of theory-mediated query answering. The starting point of our journey is the FUS/FES conjecture, saying that if a theory is core-terminating (FES) and admits query rewriting (BDD, FUS) then it is uniformly bounded. We show that this conjecture is true for a wide class of "local" BDD theories. Then we ask how non-local can a BDD theory actually be and we discover phenomena which we think are quite counter-intuitive.

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Piotr Ostropolski-Nalewaja, Jerzy Marcinkowski, David Carral, Sebastian Rudolph. 2020-12-21. A Journey to the Frontiers of Query Rewritability. https://arxiv.org/abs/2012.11269

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