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ICDE
2008
IEEE
144views Database» more  ICDE 2008»
14 years 10 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
14 years 2 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»
13 years 10 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
ICDE
2007
IEEE
110views Database» more  ICDE 2007»
14 years 10 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
IPPS
2002
IEEE
14 years 2 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