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» Processing queries on tree-structured data efficiently
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ICDE
2008
IEEE
127views Database» more  ICDE 2008»
14 years 10 months ago
Optimizing SQL Queries over Text Databases
Text documents often embed data that is structured in nature, and we can expose this structured data using information extraction technology. By processing a text database with inf...
Alpa Jain, AnHai Doan, Luis Gravano
SIGMOD
2008
ACM
122views Database» more  SIGMOD 2008»
14 years 8 months ago
Building query optimizers for information extraction: the SQoUT project
Text documents often embed data that is structured in nature. This structured data is increasingly exposed using information extraction systems, which generate structured relation...
Alpa Jain, Panagiotis G. Ipeirotis, Luis Gravano
MOBIHOC
2003
ACM
14 years 8 months ago
Connected sensor cover: self-organization of sensor networks for efficient query execution
Spatial query execution is an essential functionality of a sensor network, where a query gathers sensor data within a specific geographic region. Redundancy within a sensor networ...
Himanshu Gupta, Samir R. Das, Quinyi Gu
TKDE
2010
218views more  TKDE 2010»
13 years 3 months ago
LIGHT: A Query-Efficient Yet Low-Maintenance Indexing Scheme over DHTs
DHT is a widely used building block for scalable P2P systems. However, as uniform hashing employed in DHTs destroys data locality, it is not a trivial task to support complex queri...
Yuzhe Tang, Shuigeng Zhou, Jianliang Xu
ICDE
2005
IEEE
108views Database» more  ICDE 2005»
14 years 10 months ago
Range Efficient Computation of F0 over Massive Data Streams
Efficient one-pass computation of F0, the number of distinct elements in a data stream, is a fundamental problem arising in various contexts in databases and networking. We consid...
Pavan Aduri, Srikanta Tirthapura