261 search results - page 9 / 53 » An Optimization Technique for Answering Regular Path Queries |
165
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VLDB
2007
ACM
15 years 9 months ago
2007
ACM
We investigate the problem of how to evaluate efficiently a collection of shortest path queries on massive graphs that are too big to fit in the main memory. To evaluate a shortes...
WOLLIC
2009
Springer
15 years 4 months ago
2009
Springer
In the recent years, query answering over Description Logic (DL) knowledge bases has been receiving increasing attention, and various methods and techniques have been presented for...
ICDT
2007
ACM
15 years 3 months ago
2007
ACM
We consider the problem of querying data sources that have limited capabilities and can thus only be accessed by complying with certain binding patterns for their attributes. This ...
109
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DILS
2004
Springer
15 years 1 months ago
2004
Springer
Abstract. Life science data sources represent a complex link-driven federation of publicly available Web accessible sources. A fundamental need for scientists today is the ability ...
EDBT
2002
ACM
15 years 9 months ago
2002
ACM
Abstract. Estimating the sizes of query results, and intermediate results, is crucial to many aspects of query processing. In particular, it is necessary for effective query optimi...