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» A System for Semantic Query Optimization
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VLDB
1997
ACM
140views Database» more  VLDB 1997»
14 years 1 months ago
Parallel Query Scheduling and Optimization with Time- and Space-Shared Resources
Scheduling query execution plans is a particularly complex problem in hierarchical parallel systems, where each site consists of a collection of local time-shared (e.g., CPU(s) or...
Minos N. Garofalakis, Yannis E. Ioannidis
EDBTW
2010
Springer
13 years 7 months ago
Using visual pages analysis for optimizing web archiving
Due to the growing importance of the World Wide Web, archiving it has become crucial for preserving useful source of information. To maintain a web archive up-to-date, crawlers ha...
Myriam Ben Saad, Stéphane Gançarski
CCGRID
2002
IEEE
14 years 2 months ago
Multiple Query Optimization for Data Analysis Applications on Clusters of SMPs
This paper is concerned with the efficient execution of multiple query workloads on a cluster of SMPs. We target applications that access and manipulate large scientific dataset...
Henrique Andrade, Tahsin M. Kurç, Alan Suss...
TREC
2001
13 years 10 months ago
PiQASso: Pisa Question Answering System
PiQASso is a Question Answering system based on a combination of modern IR techniques and a series of semantic filters for selecting paragraphs containing a justifiable answer. Se...
Giuseppe Attardi, Antonio Cisternino, Francesco Fo...
AWIC
2005
Springer
14 years 2 months ago
Conceptual Query Expansion
Query expansion has been extensively studied as a technique for increasing information retrieval performance. However, due to the volume of documents available on the web, many of ...
Orland Hoeber, Xue Dong Yang, Yiyu Yao