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PODS
2004
ACM
95views Database» more  PODS 2004»
16 years 2 months ago
Conjunctive Queries over Trees
Georg Gottlob, Christoph Koch, Klaus U. Schulz
PODS
2004
ACM
100views Database» more  PODS 2004»
16 years 2 months ago
Weighted Hypertree Decompositions and Optimal Query Plans
Francesco Scarcello, Gianluigi Greco, Nicola Leone
EDBT
2004
ACM
121views Database» more  EDBT 2004»
16 years 2 months ago
On Containment of Conjunctive Queries with Arithmetic Comparisons
Foto N. Afrati, Chen Li, Prasenjit Mitra
90
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WAIM
2004
Springer
15 years 7 months ago
Learning-Based Top-N Selection Query Evaluation over Relational Databases
A top-N selection query against a relation is to find the N tuples that satisfy the query condition the best but not necessarily completely. In this paper, we propose a new method ...
Liang Zhu, Weiyi Meng