12943 search results - page 2377 / 2589 » Predicting When Not to Predict |
155
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SIGMOD
2004
ACM
16 years 4 months ago
2004
ACM
As more and more query processing work can be done in main memory, memory access is becoming a significant cost component of database operations. Recent database research has show...
170
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EDBT
2002
ACM
16 years 4 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...
142
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EDBT
2006
ACM
16 years 4 months ago
2006
ACM
Abstract. Mobile objects have become ubiquitous in our everyday lives, ranging from cellular phones to sensors, therefore, analyzing and mining mobile data becomes an interesting p...
137
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MOBISYS
2008
ACM
16 years 3 months ago
2008
ACM
Using 802.11 concurrently for communications and positioning is problematic, especially if location-based services (e.g., indoor navigation) are concurrently executed with real-ti...
133
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MOBISYS
2007
ACM
16 years 3 months ago
2007
ACM
We consider the problem of providing vehicular Internet access using roadside 802.11 access points. We build on previous work in this area [18, 8, 5, 11] with an extensive experim...