654 search results - page 90 / 131 » Complexity of Answering Queries Using Materialized Views |
121
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DBPL
2001
Springer
15 years 4 months ago
2001
Springer
Abstract. We are interested in the theoretical foundations of the optimization of conjunctive regular path queries (CRPQs). The basic problem here is deciding query containment bot...
101
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ISBRA
2010
Springer
15 years 6 months ago
2010
Springer
Biological research is becoming increasingly complex and data-rich, with multiple public databases providing a variety of resources: hundreds of thousands of substances and interac...
EDBT
2006
ACM
15 years 12 months ago
2006
ACM
The problem of rewriting queries using views has received significant attention because of its applications in a wide variety of datamanagement problems. For select-project-join SQ...
ICDE
2011
IEEE
14 years 3 months ago
2011
IEEE
— Real-world databases often have extremely complex schemas. With thousands of entity types and relationships, each with a hundred or so attributes, it is extremely difficult fo...
ICRA
2006
IEEE
15 years 5 months ago
2006
IEEE
— This paper presents a comparative analysis relative to the experimental performances of an asymptotically fast and incremental algorithm, recently developed to compute collisio...