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CLEF
2005
Springer
16 years 7 days ago
CLEF-2005 CL-SR at Maryland: Document and Query Expansion Using Side Collections and Thesauri
This paper reports results for the University of Maryland’s participation in CLEF-2005 Cross-Language Speech Retrieval track. Techniques that were tried include: (1) document ex...
Jianqiang Wang, Douglas W. Oard
SIGMOD
2006
ACM
110views Database» more  SIGMOD 2006»
16 years 6 months ago
Supporting ad-hoc ranking aggregates
This paper presents a principled framework for efficient processing of ad-hoc top-k (ranking) aggregate queries, which provide the k groups with the highest aggregates as results....
Chengkai Li, Kevin Chen-Chuan Chang, Ihab F. Ilyas
ICDE
2005
IEEE
114views Database» more  ICDE 2005»
16 years 10 days ago
VAMANA - A Scalable Cost-Driven XPath Engine
¡ Several systems have recently been proposed for the evaluation of XPath expressions. However, none of these systems have demonstrated both scalability with large document sizes ...
Venkatesh Raghavan, Kurt W. Deschler, Elke A. Rund...
VLDB
2002
ACM
157views Database» more  VLDB 2002»
16 years 7 months ago
A formal perspective on the view selection problem
The view selection problem is to choose a set of views to materialize over a database schema, such that the cost of evaluating a set of workload queries is minimized and such that ...
Rada Chirkova, Alon Y. Halevy, Dan Suciu
SP
2007
IEEE
105views Security Privacy» more  SP 2007»
16 years 1 months ago
Multi-Dimensional Range Query over Encrypted Data
We design an encryption scheme called Multi-dimensional Range Query over Encrypted Data (MRQED), to address the privacy concerns related to the sharing of network audit logs and v...
Elaine Shi, John Bethencourt, Hubert T.-H. Chan, D...