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» Efficient Parallel Query Processing by Graph Ranking
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IPPS
1998
IEEE
14 years 21 days ago
VPPB - A Visualization and Performance Prediction Tool for Multithreaded Solaris Programs
Efficient performance tuning of parallel programs is often hard. In this paper we describe an approach that uses a uni-processor execution of a multithreaded program as reference ...
Magnus Broberg, Lars Lundberg, Håkan Grahn
SIGMOD
2008
ACM
167views Database» more  SIGMOD 2008»
14 years 8 months ago
Efficient lineage tracking for scientific workflows
Data lineage and data provenance are key to the management of scientific data. Not knowing the exact provenance and processing pipeline used to produce a derived data set often re...
Thomas Heinis, Gustavo Alonso
SEMWEB
2009
Springer
14 years 3 months ago
Using Naming Authority to Rank Data and Ontologies for Web Search
Abstract. The focus of web search is moving away from returning relevant documents towards returning structured data as results to user queries. A vital part in the architecture of...
Andreas Harth, Sheila Kinsella, Stefan Decker
ICPP
2007
IEEE
14 years 2 months ago
Difficulty-aware Hybrid Search in Peer-to-Peer Networks
—By combining an unstructured protocol with a DHT-based global index, hybrid peer-to-peer (P2P) improves search efficiency in terms of query recall and response time. The major c...
Hanhua Chen, Hai Jin, Yunhao Liu, Lionel M. Ni
ICDE
2006
IEEE
232views Database» more  ICDE 2006»
14 years 9 months ago
Dual Labeling: Answering Graph Reachability Queries in Constant Time
Graph reachability is fundamental to a wide range of applications, including XML indexing, geographic navigation, Internet routing, ontology queries based on RDF/OWL, etc. Many ap...
Haixun Wang, Hao He, Jeffrey Xu Yu, Jun Yang 0001,...