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ADC
1999
Springer
68views Database» more  ADC 1999»
15 years 10 months ago
A Query-sensitive Cost Model for Similarity Queries with M-tree
We introduce a cost model for the M-tree access method [Ciaccia et al., 1997] which provides estimates of CPU (distance computations) and I/O costs for the execution of similarity ...
Paolo Ciaccia, A. Nanni, Marco Patella
PODS
1998
ACM
116views Database» more  PODS 1998»
15 years 10 months ago
Complexity of Answering Queries Using Materialized Views
We study the complexity of the problem of answering queries using materialized views. This problem has attracted a lot of attention recently because of its relevance in data integ...
Serge Abiteboul, Oliver M. Duschka
TREC
2007
15 years 7 months ago
Query and Document Models for Enterprise Search
: We describe our participation in the TREC 2007 Enterprise track and detail our language modeling-based approaches. For document search, our focus was on estimating a mixture mode...
Krisztian Balog, Katja Hofmann, Wouter Weerkamp, M...
LCN
2006
IEEE
16 years 1 days ago
Cerco: Supporting Range Queries with a Hierarchically Structured Peer-to-Peer System
Structured Peer-to-Peer systems are designed for a highly scalable, self organizing, and efficient lookup for data. The key space of the so-called Distributed Hash Tables (DHTs) ...
Simon Rieche, Klaus Wehrle, Leo Petrak, Clemens Wr...
SAC
1997
ACM
15 years 10 months ago
Query Planning in Infomaster
Infomaster is an information integration system. It provides integrated access to distributed, heterogeneous information sources, thus giving its users the illusion of a centraliz...
Oliver M. Duschka, Michael R. Genesereth