Reasonable Highly Expressive Query Languages
Pierre Bourhis, Markus Krötzsch, Sebastian Rudolph
Reasonable Highly Expressive Query Languages
Abstract. Expressive query languages are gaining relevance in knowledge representation (KR), and new reasoning problems come to the fore. Especially query containment is interesting in this context. The problem is known to be decidable for many expressive query languages, but exact complexities are often missing. We introduce a new query language, guarded queries (GQ), which generalizes most known languages where query containment is decidable. GQs can be nested (more expressive), or restricted to linear recursion (less expressive). Our comprehensive analysis of the computational properties and expressiveness of (linear/nested) GQs also yields insights on many previous languages.
Published at IJCAI 2015 (Conference paper)
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Citation details
- Pierre Bourhis, Markus Krötzsch, Sebastian Rudolph. Reasonable Highly Expressive Query Languages. In Qiang Yang, Michael Wooldridge, eds.: Proceedings of the 24th International Joint Conference on Artificial Intelligence (IJCAI-15), pp. 2826–2832. IJCAIProperty "Publisher" has a restricted application area and cannot be used as annotation property by a user. 2015.
author = {Pierre Bourhis and Markus Kr{\"o}tzsch and
Sebastian Rudolph},
title = {Reasonable Highly Expressive Query Languages},
booktitle= {Proceedings of the 24th International Joint
Conference on Artificial Intelligence (IJCAI'15)},
editor = {Qiang Yang and Michael Wooldridge},
year = {2015},
publisher= {AAAI Press},
pages = {2826--2832}
}
Remarks
This work was awarded with the title IJCAI-15 Distinguished Paper (Honorable Mention) (as one of three award papers among 1996 submissions).
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