3524 search results - page 304 / 705 » Issues in Active Databases |
160
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ADC
2006
Springer
15 years 10 months ago
2006
Springer
Web information extraction is a fundamental issue for web information management and integrations. A common approach is to use wrappers to extract data from web pages or documents...
154
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VLDB
2005
ACM
15 years 10 months ago
2005
ACM
Nested iteration is an important technique for query evaluation. It is the default way of executing nested subqueries in SQL. Although decorrelation often results in cheaper non-n...
122
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ADC
2004
Springer
15 years 10 months ago
2004
Springer
Portals are one of the rapidly growing applications on the Web, providing a single interface to access different sources (providers). Providing fast response time is one of the c...
142
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ADC
2004
Springer
15 years 10 months ago
2004
Springer
Aggregating spatial objects is a necessary step in generating spatial data cubes to support roll-up/drill-down operations. Current approaches face performance bottleneck issues wh...
174
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IDEAS
2002
IEEE
15 years 9 months ago
2002
IEEE
Energy saving is the most important issue in wireless mobile computing due to power constraints on mobile units. Data broadcasting is the main method of information dissemination ...