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» A Performance Comparison of bitmap indexes
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NLDB
2004
Springer
15 years 2 months ago
Concept Indexing for Automated Text Categorization
In this paper we explore the potential of concept indexing with WordNet synsets for Text Categorization, in comparison with the traditional bag of words text representation model. ...
José María Gómez Hidalgo, Jos...
PRIS
2004
14 years 11 months ago
Comparison of Combination Methods using Spectral Clustering Ensembles
We address the problem of the combination of multiple data partitions, that we call a clustering ensemble. We use a recent clustering approach, known as Spectral Clustering, and th...
André Lourenço, Ana L. N. Fred
ICDE
2007
IEEE
124views Database» more  ICDE 2007»
15 years 11 months ago
On MBR Approximation of Histories for Historical Queries: Expectations and Limitations
Traditional approaches for efficiently processing historical queries, where a history is a multidimensional timeseries, employ a two step filter-and-refine scheme. In the filter s...
Reza Sherkat, Davood Rafiei
ECRA
2006
90views more  ECRA 2006»
14 years 9 months ago
Efficient indexing technique for XML-based electronic product catalogs
Electronic product catalogs are considered as one of the main components of e-commerce applications. Efficient processing of queries on product catalogs is important for customer ...
Arzucan Özgür, Taflan I. Gündem
PCM
2004
Springer
108views Multimedia» more  PCM 2004»
15 years 2 months ago
MPEG-4 Video Retrieval Using Video-Objects and Edge Potential Functions
A novel video retrieval tool based on MPEG-4 video object (VO) representation is presented. The algorithm extends the concept of edge potential functions (EPF), already used in sha...
Minh-Son Dao, Francesco G. B. De Natale, Andrea Ma...