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WWW
2001
ACM
14 years 11 months ago
Clustering user queries of a search engine
In order to increase retrieval precision, some new search engines provide manually verified answers to Frequently Asked Queries (FAQs). An underlying task is the identification of...
Ji-Rong Wen, Jian-Yun Nie, HongJiang Zhang
ADC
2007
Springer
107views Database» more  ADC 2007»
14 years 4 months ago
A Processing Model for the Optimal Querying of Encrypted XML Documents in XQuery
XQuery is a powerful and convenient language that is designed for querying the data in XML documents. In this paper, we address how to optimally query encrypted XML documents usin...
Tao-Ku Chang, Gwan-Hwan Hwang
ICALP
2007
Springer
14 years 4 months ago
Constant-Round Private Database Queries
We consider several private database query problems. The starting point of this work is the element rank problem: the server holds a database of n integers, and the user an integer...
Nenad Dedic, Payman Mohassel
DOLAP
2006
ACM
14 years 4 months ago
A study on workload-aware wavelet synopses for point and range-sum queries
In this paper we perform an extensive theoretical and experimental study on common synopsis construction algorithms, with emphasis on wavelet based techniques, that take under con...
Michael Mathioudakis, Dimitris Sacharidis, Timos K...
MDM
2005
Springer
117views Communications» more  MDM 2005»
14 years 3 months ago
Tuning query performance in mobile sensor databases
In this paper we propose a query-driven approach for tuning the time/energy trade-off in sensor networks with mobile sensors. The tuning factors include re-positioning of mobile s...
Vladimir Zadorozhny, Divyasheel Sharma, Prashant K...