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PVLDB
2008
128views more  PVLDB 2008»
14 years 9 months ago
Hexastore: sextuple indexing for semantic web data management
Despite the intense interest towards realizing the Semantic Web vision, most existing RDF data management schemes are constrained in terms of efficiency and scalability. Still, th...
Cathrin Weiss, Panagiotis Karras, Abraham Bernstei...
INFOSCALE
2007
ACM
14 years 11 months ago
Mining query logs to optimize index partitioning in parallel web search engines
Large-scale Parallel Web Search Engines (WSEs) needs to adopt a strategy for partitioning the inverted index among a set of parallel server nodes. In this paper we are interested ...
Claudio Lucchese, Salvatore Orlando, Raffaele Pere...
HICSS
2010
IEEE
200views Biometrics» more  HICSS 2010»
14 years 11 months ago
Instability of Relevance-Ranked Results Using Latent Semantic Indexing for Web Search
1 The latent semantic indexing (LSI) methodology for information retrieval applies the singular value decomposition to identify an eigensystem for a large matrix, in which cells re...
Houssain Kettani, Gregory B. Newby
ICDE
2008
IEEE
161views Database» more  ICDE 2008»
15 years 11 months ago
COLR-Tree: Communication-Efficient Spatio-Temporal Indexing for a Sensor Data Web Portal
Abstract-- We present COLR-Tree, an abstraction layer designed to support efficient spatio-temporal queries on live data gathered from a large collection of sensors. We use COLR-Tr...
Yanif Ahmad, Suman Nath
WECWIS
2007
IEEE
135views ECommerce» more  WECWIS 2007»
15 years 4 months ago
Large Scale Web Service Discovery and Composition using High Performance In-Memory Indexing
With the growing number and ubiquitous usage of Web services throughout the service-oriented community, the need to find service descriptions in a given repository, as well as co...
Lukasz Juszczyk, Anton Michlmayr, Christian Platze...