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» The impact of database selection on distributed searching
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VLDB
2004
ACM
187views Database» more  VLDB 2004»
15 years 2 months ago
Voronoi-Based K Nearest Neighbor Search for Spatial Network Databases
A frequent type of query in spatial networks (e.g., road networks) is to find the K nearest neighbors (KNN) of a given query object. With these networks, the distances between ob...
Mohammad R. Kolahdouzan, Cyrus Shahabi
TREC
2001
14 years 11 months ago
More Reflections on "Aboutness" TREC-2001 Evaluation Experiments at Justsystem
The TREC-2001 Web track evaluation experiments at the Justsystem site are described with a focus on the "aboutness" based approach in text retrieval. In the web ad hoc t...
Sumio Fujita
EDBT
2010
ACM
132views Database» more  EDBT 2010»
15 years 25 days ago
Turbo-charging hidden database samplers with overflowing queries and skew reduction
Recently, there has been growing interest in random sampling from online hidden databases. These databases reside behind form-like web interfaces which allow users to execute sear...
Arjun Dasgupta, Nan Zhang 0004, Gautam Das
58
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CIKM
2004
Springer
15 years 2 months ago
Unified utility maximization framework for resource selection
This paper presents a unified utility framework for resource selection of distributed text information retrieval. This new framework shows an efficient and effective way to infer ...
Luo Si, James P. Callan
MM
2009
ACM
147views Multimedia» more  MM 2009»
15 years 4 months ago
Distribution-based concept selection for concept-based video retrieval
Query-to-concept mapping plays one of the keys to concept-based video retrieval. Conventional approaches try to find concepts that are likely to co-occur in the relevant shots fro...
Juan Cao, HongFang Jing, Chong-Wah Ngo, Yongdong Z...