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ICDE
2008
IEEE
144views Database» more  ICDE 2008»
16 years 3 months ago
QShuffler: Getting the Query Mix Right
The typical workload in a database system consists of a mixture of multiple queries of different types, running concurrently and interacting with each other. Hence, optimizing perf...
Mumtaz Ahmad, Ashraf Aboulnaga, Shivnath Babu, Kam...
ICTAI
2003
IEEE
15 years 7 months ago
Query Expansion and Query Reduction in Document Retrieval
We investigate two seemingly incompatible approaches for improving document retrieval performance in the context of question answering: query expansion and query reduction. Querie...
Ingrid Zukerman, Bhavani Raskutti, Yingying Wen
SDM
2010
SIAM
144views Data Mining» more  SDM 2010»
15 years 3 months ago
A Probabilistic Framework to Learn from Multiple Annotators with Time-Varying Accuracy
This paper addresses the challenging problem of learning from multiple annotators whose labeling accuracy (reliability) differs and varies over time. We propose a framework based ...
Pinar Donmez, Jaime G. Carbonell, Jeff Schneider
194
Voted
ICDE
2007
IEEE
110views Database» more  ICDE 2007»
16 years 3 months ago
Semantic Prefetching of Correlated Query Sequences
We present a system that optimizes sequences of related client requests by combining small requests into larger ones, thus reducing per-request overhead. The system predicts upcom...
Ivan T. Bowman, Kenneth Salem
141
Voted
IPPS
2002
IEEE
15 years 7 months ago
Comparing the Memory System Performance of DSS Workloads on the HP V-Class and SGI Origin 2000
In this paper, we present an in-depth analysis of the memory system performance of the DSS commercial workloads on two state-of-the-art multiprocessors: the SGI Origin 2000 and th...
Rong Yu, Laxmi N. Bhuyan, Ravi R. Iyer