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SIGIR
2008
ACM
15 years 3 months ago
ResIn: a combination of results caching and index pruning for high-performance web search engines
Results caching is an efficient technique for reducing the query processing load, hence it is commonly used in real search engines. This technique, however, bounds the maximum hit...
Gleb Skobeltsyn, Flavio Junqueira, Vassilis Placho...
ICDE
2008
IEEE
129views Database» more  ICDE 2008»
16 years 6 months ago
Fuzzy Multi-Dimensional Search in the Wayfinder File System
With the explosion in the amount of semi-structured data users access and store, there is a need for complex search tools to retrieve often very heterogeneous data in a simple and ...
Amélie Marian, Christopher Peery, Thu D. Ng...
ICIP
2003
IEEE
16 years 6 months ago
Multitemporal geospatial query grouping using correlation signatures
With recent advances in temporal and spatiotemporal databases, user demands are becoming more complex. As a result, simple queries are replaced by complex multitemporal query scen...
Giorgos Mountrakis, Peggy Agouris, Anthony Stefani...
PODS
2009
ACM
134views Database» more  PODS 2009»
16 years 5 months ago
Equivalence of nested queries with mixed semantics
We consider the problem of deciding query equivalence for a conjunctive language in which queries output complex objects composed from a mixture of nested, unordered collection ty...
David DeHaan
DASFAA
1999
IEEE
79views Database» more  DASFAA 1999»
15 years 9 months ago
Early Separation of Filter and Refinement Steps in Spatial Query Optimization
The spatial query has been processed in two steps, the filter step and the refinement step, due to a large volume and high complexity of the spatial data. However, this approach h...
Ho-Hyun Park, Chan-Gun Lee, Yong-Ju Lee, Chin-Wan ...