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KDD
2009
ACM
243views Data Mining» more  KDD 2009»
14 years 8 months ago
Exploiting Wikipedia as external knowledge for document clustering
In traditional text clustering methods, documents are represented as "bags of words" without considering the semantic information of each document. For instance, if two ...
Xiaohua Hu, Xiaodan Zhang, Caimei Lu, E. K. Park, ...
ACL
2010
13 years 6 months ago
Improved Unsupervised POS Induction through Prototype Discovery
We present a novel fully unsupervised algorithm for POS induction from plain text, motivated by the cognitive notion of prototypes. The algorithm first identifies landmark cluster...
Omri Abend, Roi Reichart, Ari Rappoport
ICDE
2003
IEEE
117views Database» more  ICDE 2003»
14 years 9 months ago
Design and Implementation of a Temporal Extension of SQL
We present a valid-time extension of SQL and investigate its efficient implementation on an Object-Relational database system. We propose an approach where temporal queries are ex...
Cindy Xinmin Chen, Jiejun Kong, Carlo Zaniolo
ICIAP
2003
ACM
14 years 1 months ago
Color matching by using tuple matching
In this paper we present a new matching method called Tuple Matching (TM), which is an algorithm for matching of signatures. Since signatures can contain arbitrary features like c...
Dirk Balthasar
PODS
1989
ACM
155views Database» more  PODS 1989»
13 years 11 months ago
Fractals for Secondary Key Retrieval
In this paper we propose the use of fractals and especially the Hilbert curve, in order to design good distance-preserving mappings. Such mappings improve the performance of secon...
Christos Faloutsos, Shari Roseman