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» A New Type of Metadata for Querying Data Integration Systems
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SIGMOD
1995
ACM
80views Database» more  SIGMOD 1995»
13 years 11 months ago
Join Queries with External Text Sources: Execution and Optimization Techniques
Text is a pervasive information type, and many applications require querying over text sources in addition to structured data. This paper studies the problem of query processing i...
Surajit Chaudhuri, Umeshwar Dayal, Tak W. Yan
MMDB
2003
ACM
178views Multimedia» more  MMDB 2003»
14 years 28 days ago
Video query processing in the VDBMS testbed for video database research
The increased use of video data sets for multimedia-based applications has created a demand for strong video database support, including efficient methods for handling the content...
Walid G. Aref, Moustafa A. Hammad, Ann Christine C...
DGO
2004
102views Education» more  DGO 2004»
13 years 9 months ago
A Web Query System for Heterogeneous Government Data
This paper describes a Web-based query system for semantically heterogeneous government-produced data. Geospatial Web-based information systems and portals are currently being dev...
Nancy Wiegand, Naijun Zhou, Isabel F. Cruz, Willia...
WWW
2006
ACM
14 years 8 months ago
Optimizing scoring functions and indexes for proximity search in type-annotated corpora
We introduce a new, powerful class of text proximity queries: find an instance of a given "answer type" (person, place, distance) near "selector" tokens matchi...
Soumen Chakrabarti, Kriti Puniyani, Sujatha Das
BMCBI
2008
106views more  BMCBI 2008»
13 years 7 months ago
An Integrated Korean Biodiversity and Genetic Information Retrieval System
Background: On-line biodiversity information databases are growing quickly and being integrated into general bioinformatics systems due to the advances of fast gene sequencing tec...
Jeongheui Lim, Jong Bhak, Hee-Mock Oh, Chang-Bae K...