14306 search results - page 304 / 2862 » Database System Concepts |
193
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VLDB
2001
ACM
15 years 11 months ago
2001
ACM
ct Information Integration is among the most important fields in information management. The problem of integrating data from diverse, possibly heterogeneous data sources is ubiqu...
179
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DASFAA
2009
IEEE
15 years 10 months ago
2009
IEEE
Abstract. Query expansion has received extensive attention in information retrieval community. Although semantic based query expansion appears to be promising in improving retrieva...
174
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VLDB
2000
ACM
15 years 10 months ago
2000
ACM
E-business is becoming the trademark of the 2000s. Companies are using the Web to communicate with their partners, connect with their back-end systems, and perform e-commerce tran...
206
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ADBIS
2010
Springer
15 years 6 months ago
2010
Springer
The problem of designing suitable conceptual modeling languages for system engineering is far from being solved. In the past years, some works have proposed the use of foundational...
158
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SIGMOD
1999
ACM
15 years 11 months ago
1999
ACM
It is envisaged that the application of the multilevel security (MLS) scheme will enhance exibility and e ectiveness of authorization policies in shared enterprise databases and w...