14306 search results - page 118 / 2862 » Database System Concepts |
117
Voted
ICC
2007
IEEE
15 years 9 months ago
2007
IEEE
—Frequency hopping systems have been widely used in military communications to prevent hostile jamming, interception and detection. In traditional frequency hopping (FH) systems,...
155
Voted
KBSE
1997
IEEE
15 years 7 months ago
1997
IEEE
Legacy software systems present a high level of entropy combined with imprecise documentation. This makes their maintenance more difficult, more time consuming, and costlier. In o...
126
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MSWIM
2006
ACM
15 years 9 months ago
2006
ACM
Security is a critical issue in mobile commerce, especially in mobile database systems since mobile environments are dynamic and traditional protection mechanisms do not work very...
101
Voted
ADC
2007
Springer
15 years 9 months ago
2007
Springer
An ontology is increasingly becoming an essential tool for solving problems in many research areas. The ontology is a complex information object. It can contain millions of concep...
133
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VLDB
2007
ACM
15 years 9 months ago
2007
ACM
There is a growing consensus that it is desirable to query over the structure implicit in unstructured documents, and that ideally this capability should be provided incrementally...