1016 search results - page 179 / 204 » Explore or Exploit |
SIGMOD
2007
ACM
14 years 8 months ago
2007
ACM
Two trends are converging to make the CPU cost of a table scan a more important component of database performance. First, table scans are becoming a larger fraction of the query p...
SIGMOD
2006
ACM
14 years 8 months ago
2006
ACM
Text is ubiquitous and, not surprisingly, many important applications rely on textual data for a variety of tasks. As a notable example, information extraction applications derive...
EDBT
2008
ACM
14 years 7 months ago
2008
ACM
The top-k retrieval problem requires finding k objects most similar to a given query object. Similarities between objects are most often computed as aggregated similarities of the...
MOBISYS
2007
ACM
14 years 7 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...
MOBIHOC
2008
ACM
14 years 7 months ago
2008
ACM
For long, node cooperation has been exploited as a data relaying mechanism. However, the wireless channel allows for much richer interaction between nodes. One such scenario is in...