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» Refreshing Models to Provide Timely Query Recommendations
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VLDB
2002
ACM
108views Database» more  VLDB 2002»
13 years 8 months ago
Generic Database Cost Models for Hierarchical Memory Systems
Accurate prediction of operator execution time is a prerequisite for database query optimization. Although extensively studied for conventional disk-based DBMSs, cost modeling in ...
Stefan Manegold, Peter A. Boncz, Martin L. Kersten
JBCS
2002
116views more  JBCS 2002»
13 years 8 months ago
Software Components Retrieval Through Mediators and Web Search
Component Based Development (CBD) aims at constructing software through the integration, using interfaces and contracts, between pre-existing components. The main goal of this wor...
Robson P. de Souza, Marcelo N. Costa, Regina M. M....
SIGIR
1999
ACM
14 years 23 days ago
Content-Based Retrieval for Music Collections
A content-based retrieval model for tackling the mismatch problems specific to music data is proposed and implemented. The system uses a pitch profile encoding for queries in any ...
Yuen-Hsien Tseng
PARLE
1993
14 years 16 days ago
On the Performance of Parallel Join Processing in Shared Nothing Database Systems
: Parallel database systems aim at providing high throughput for OLTP transactions as well as short response times for complex and data-intensive queries. Shared nothing systems re...
Robert Marek, Erhard Rahm
ICDE
2012
IEEE
228views Database» more  ICDE 2012»
11 years 11 months ago
A General Method for Estimating Correlated Aggregates over a Data Stream
—On a stream of two dimensional data items (x, y) where x is an item identifier, and y is a numerical attribute, a correlated aggregate query requires us to first apply a selec...
Srikanta Tirthapura, David P. Woodruff