We revisit the issue of the complexity of database queries, in the light of the recent parametric refinement of complexity theory. We show that, if the query size (or the number of variables in the query) is considered as a parameter, then the relational calculus and its fragments (conjunctive queri
โฆ LIBER โฆ
On the Complexity of Halfspace Area Queries
โ Scribed by Stefan Langerman
- Book ID
- 106149494
- Publisher
- Springer
- Year
- 2003
- Tongue
- English
- Weight
- 197 KB
- Volume
- 30
- Category
- Article
- ISSN
- 0179-5376
No coin nor oath required. For personal study only.
๐ SIMILAR VOLUMES
On the Complexity of Database Queries
โ
Christos H. Papadimitriou; Mihalis Yannakakis
๐
Article
๐
1999
๐
Elsevier Science
๐
English
โ 223 KB
On the complexity of single-rule datalog
โ
Georg Gottlob; Christos Papadimitriou
๐
Article
๐
2003
๐
Elsevier Science
๐
English
โ 197 KB
The complexity of evaluating relational
โ
Stavros S. Cosmadakis
๐
Article
๐
1983
๐
Elsevier Science
โ 568 KB
On the time-space complexity of reachabi
โ
Lisa Hellerstein; Philip Klein; Robert Wilber
๐
Article
๐
1990
๐
Elsevier Science
๐
English
โ 587 KB
The influence of surface complexity on j
โ
Verrillo, Ronald T. ;Graeff, Christopher K.
๐
Article
๐
1970
๐
Psychonomic Society Publications
๐
English
โ 457 KB
On the computational complexity of query
โ
Vittorio Brusoni; Luca Console; Paolo Terenziani
๐
Article
๐
1995
๐
Elsevier Science
๐
English
โ 891 KB
Given a consistent knowledge base formed by a set of constraints, efficient query answering (e.g., checking whether a set of constraints is consistent with the knowledge base or necessarily true in it) is practically very important. In the paper we consider bounds on differences (which are an import