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DEXA
2010
Springer
230views Database» more  DEXA 2010»
13 years 7 months ago
Hybrid Indexing and Seamless Ranking of Spatial and Textual Features of Web Documents
Abstract. There is a significant commercial and research interest in locationbased web search engines. Given a number of search keywords and one or more locations that a user is in...
Ali Khodaei, Cyrus Shahabi, Chen Li
PVLDB
2010
190views more  PVLDB 2010»
13 years 4 months ago
Efficient B-tree Based Indexing for Cloud Data Processing
A Cloud may be seen as a type of flexible computing infrastructure consisting of many compute nodes, where resizable computing capacities can be provided to different customers. T...
Sai Wu, Dawei Jiang, Beng Chin Ooi, Kun-Lung Wu
SIGIR
2011
ACM
13 years 27 days ago
Faster top-k document retrieval using block-max indexes
Large search engines process thousands of queries per second over billions of documents, making query processing a major performance bottleneck. An important class of optimization...
Shuai Ding, Torsten Suel
ADBIS
1994
Springer
87views Database» more  ADBIS 1994»
14 years 2 months ago
Variations of R-Tree Structure for Indexing of Spatial Objects
The data structures suitable for indexing of large spatial objects in databases are considered. Some generalizations of existing tree methods concerned approximation of spatial ob...
M. G. Martynov
PODS
2011
ACM
238views Database» more  PODS 2011»
13 years 28 days ago
Beyond simple aggregates: indexing for summary queries
Database queries can be broadly classified into two categories: reporting queries and aggregation queries. The former retrieves a collection of records from the database that mat...
Zhewei Wei, Ke Yi