8499 search results - page 1421 / 1700 » cans 2009 |
315
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PODS
2009
ACM
16 years 7 months ago
2009
ACM
Relational schema mappings have been extensively studied in connection with data integration and exchange problems, but mappings between XML schemas have not received the same amo...
251
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PODS
2009
ACM
16 years 7 months ago
2009
ACM
The problem of finding heavy hitters and approximating the frequencies of items is at the heart of many problems in data stream analysis. It has been observed that several propose...
262
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PODS
2009
ACM
16 years 7 months ago
2009
ACM
The paper investigates the question of whether a partially closed database has complete information to answer a query. In practice an enterprise often maintains master data Dm, a ...
178
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EWSN
2009
Springer
16 years 7 months ago
2009
Springer
As many radio chips used in today's sensor mote hardware can work at different frequencies, several multi-channel communication protocols have recently been proposed to improv...
175
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MOBISYS
2009
ACM
16 years 7 months ago
2009
ACM
Mobility footprint refers to the size, weight, and energy demand of the hardware that must be carried by a mobile user to be effective at any time and place. The ideal of a zero m...