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» A Model of Queries for Object-Oriented Databases
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ER
2008
Springer
123views Database» more  ER 2008»
15 years 6 months ago
Modeling and Querying E-Commerce Data in Hybrid Relational-XML DBMSs
Abstract. Data in many industrial application systems are often neither completely structured nor unstructured. Consequently semi-structured data models such as XML have become pop...
Lipyeow Lim, Haixun Wang, Min Wang
DBPL
2007
Springer
102views Database» more  DBPL 2007»
15 years 11 months ago
A Theory of Stream Queries
Data streams are modeled as infinite or finite sequences of data elements coming from an arbitrary but fixed universe. The universe can have various built-in functions and predi...
Yuri Gurevich, Dirk Leinders, Jan Van den Bussche
VLDB
2005
ACM
103views Database» more  VLDB 2005»
15 years 10 months ago
Semantic Query Optimization for XQuery over XML Streams
We study XML stream-specific schema-based optimization. We assume a widely-adopted automata-based execution model for XQuery evaluation. Criteria are established regarding what s...
Hong Su, Elke A. Rundensteiner, Murali Mani
DEXA
2001
Springer
91views Database» more  DEXA 2001»
15 years 9 months ago
Towards the Development of Heuristics for Automatic Query Expansion
Abstract. In this paper we study the performance of linguisticallymotivated conflation techniques for Information Retrieval in Spanish. In particular, we have studied the applicat...
Jesús Vilares, Manuel Vilares Ferro, Miguel...
ER
2001
Springer
107views Database» more  ER 2001»
15 years 9 months ago
Source Description-Based Approach for the Modeling of Spatial Information Integration
Rapid development of information technology such as mobile terminals and GPS systems enabled information services that provide location-oriented information based on users’ posit...
Yoshiharu Ishikawa, Hiroyuki Kitagawa