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SIGIR
2012
ACM
13 years 2 months ago
Modeling higher-order term dependencies in information retrieval using query hypergraphs
Many of the recent, and more effective, retrieval models have incorporated dependencies between the terms in the query. In this paper, we advance this query representation one st...
Michael Bendersky, W. Bruce Croft
MKM
2004
Springer
15 years 5 months ago
Flexible Encoding of Mathematics on the Computer
This paper reports on refinements and extensions to the MathLang framework that add substantial support for natural language text. We show how the extended framework supports mult...
Fairouz Kamareddine, Manuel Maarek, J. B. Wells
WWW
2004
ACM
16 years 12 days ago
Texquery: a full-text search extension to xquery
One of the key benefits of XML is its ability to represent a mix of structured and unstructured (text) data. Although current XML query languages such as XPath and XQuery can expr...
Sihem Amer-Yahia, Chavdar Botev, Jayavel Shanmugas...
VLDB
1989
ACM
104views Database» more  VLDB 1989»
15 years 3 months ago
Gral: An Extensible Relational Database System for Geometric Applications
: We describe the architecture of a relational databasesystem that is extensible by user-defined data types and operations, including relation operations. The central concept is to...
Ralf Hartmut Güting
GIS
2007
ACM
16 years 24 days ago
Cluster By: a new sql extension for spatial data aggregation
The development of areas such as remote and airborne sensing, location based services, and geosensor networks enables the collection of large volumes of spatial data. These datase...
Chengyang Zhang, Yan Huang