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» Semantic queries in databases: problems and challenges
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VLDB
2004
ACM
104views Database» more  VLDB 2004»
14 years 9 months ago
Retrieval effectiveness of an ontology-based model for information selection
Technology in the field of digital media generates huge amounts of nontextual information, audio, video, and images, along with more familiar textual information. The potential for...
Latifur Khan, Dennis McLeod, Eduard H. Hovy
NETWORK
2008
139views more  NETWORK 2008»
13 years 8 months ago
Composing semantic services in open sensor-rich environments
Consider a scenario where Jane is at an airport. She wants to find a restaurant with healthy food and short waiting time on the way to her terminal. The airport can provide such s...
Jie Liu, Feng Zhao
ICDE
2005
IEEE
101views Database» more  ICDE 2005»
14 years 2 months ago
Optimization of Nested XQuery Expressions with Orderby Clauses
— XQuery, the defacto XML query language, is a functional language with operational semantics, which precludes the direct application of classical query optimization techniques. ...
Song Wang, Elke A. Rundensteiner, Murali Mani
BMCBI
2005
156views more  BMCBI 2005»
13 years 8 months ago
DynGO: a tool for visualizing and mining of Gene Ontology and its associations
Background: A large volume of data and information about genes and gene products has been stored in various molecular biology databases. A major challenge for knowledge discovery ...
Hongfang Liu, Zhang-Zhi Hu, Cathy H. Wu
SIGMOD
2004
ACM
164views Database» more  SIGMOD 2004»
14 years 9 months ago
Dynamic Plan Migration for Continuous Queries Over Data Streams
Dynamic plan migration is concerned with the on-the-fly transition from one continuous query plan to a semantically equivalent yet more efficient plan. Migration is important for ...
Yali Zhu, Elke A. Rundensteiner, George T. Heinema...