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WWW
2010
ACM
15 years 6 months ago
Anonymizing user profiles for personalized web search
We study the problem of anonymizing user profiles so that user privacy is sufficiently protected while the anonymized profiles are still effective in enabling personalized web sea...
Yun Zhu, Li Xiong, Christopher Verdery
SIGIR
2008
ACM
15 years 6 months ago
Measuring concept relatedness using language models
Over the years, the notion of concept relatedness has attracted considerable attention. A variety of approaches, based on ontology structure, information content, association, or ...
Dolf Trieschnigg, Edgar Meij, Maarten de Rijke, We...
SIGIR
2008
ACM
15 years 6 months ago
Posterior probabilistic clustering using NMF
We introduce the posterior probabilistic clustering (PPC), which provides a rigorous posterior probability interpretation for Nonnegative Matrix Factorization (NMF) and removes th...
Chris H. Q. Ding, Tao Li, Dijun Luo, Wei Peng
FUIN
2000
123views more  FUIN 2000»
15 years 6 months ago
Deriving and Retrieving Contextual Categorical Information through Instance Inheritance
In semantic and object-oriented data models, each class has one or more typing properties that associate it to other classes, and carry type information about all instances of the ...
Anastasia Analyti, Nicolas Spyratos, Panos Constan...
WWW
2002
ACM
15 years 6 months ago
A Query Language for XML Based on Graph Grammars
In this paper we present a graphical query language for XML. The language, based on a simple form of graph grammars, permits us to extract data and reorganize information in a new...
Sergio Flesca, Filippo Furfaro, Sergio Greco