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» Performance data collection using a hybrid approach
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EDBT
2010
ACM
392views Database» more  EDBT 2010»
15 years 7 months ago
Position list word aligned hybrid: optimizing space and performance for compressed bitmaps
Compressed bitmap indexes are increasingly used for efficiently querying very large and complex databases. The Word Aligned Hybrid (WAH) bitmap compression scheme is commonly rec...
François Deliège, Torben Bach Peders...
ICDE
2007
IEEE
130views Database» more  ICDE 2007»
16 years 2 months ago
Semantic Data Management: Towards Querying Data with their Meaning
Relational database management systems are constantly being extended and augmented to accommodate data in different domains. Recently, with the increasing use of ontology in vario...
Lipyeow Lim, Haixun Wang, Min Wang
LREC
2008
145views Education» more  LREC 2008»
15 years 2 months ago
Data Collection for the CHIL CLEAR 2007 Evaluation Campaign
This paper describes in detail the data that was collected and annotated during the third and final year of the CHIL project. This data was used for the CLEAR evaluation campaign ...
Nicolas Moreau, Djamel Mostefa, Rainer Stiefelhage...
ICPR
2008
IEEE
16 years 2 months ago
Preliminary approach on synthetic data sets generation based on class separability measure
Usually, performance of classifiers is evaluated on real-world problems that mainly belong to public repositories. However, we ignore the inherent properties of these data and how...
Núria Macià, Ester Bernadó-Ma...
RSFDGRC
1999
Springer
194views Data Mining» more  RSFDGRC 1999»
15 years 5 months ago
A Closest Fit Approach to Missing Attribute VAlues in Preterm Birth Data
: In real-life data, in general, many attribute values are missing. Therefore, rule induction requires preprocessing, where missing attribute values are replaced by appropriate val...
Jerzy W. Grzymala-Busse, Witold J. Grzymala-Busse,...