2457 search results - page 486 / 492 » Evaluating Geographic Information Retrieval |
SIGMOD
2008
ACM
14 years 7 months ago
2008
ACM
How can we efficiently find a clustering, i.e. a concise description of the cluster structure, of a given data set which contains an unknown number of clusters of different shape ...
SIGMOD
2006
ACM
14 years 7 months ago
2006
ACM
Given a dataset P and a preference function f, a top-k query retrieves the k tuples in P with the highest scores according to f. Even though the problem is well-studied in convent...
MOBISYS
2008
ACM
14 years 7 months ago
2008
ACM
Cascadia is a system that provides RFID-based pervasive computing applications with an infrastructure for specifying, extracting and managing meaningful high-level events from raw...
WSDM
2010
ACM
14 years 4 months ago
2010
ACM
We study the problem of designing a mechanism to rank items in forums by making use of the user reviews such as thumb and star ratings. We compare mechanisms where forum users rat...
EUROSYS
2007
ACM
14 years 4 months ago
2007
ACM
During concurrent I/O workloads, sequential access to one I/O stream can be interrupted by accesses to other streams in the system. Frequent switching between multiple sequential ...