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ICDE
2010
IEEE
183views Database» more  ICDE 2010»
14 years 5 months ago
Estimating the compression fraction of an index using sampling
—Data compression techniques such as null suppression and dictionary compression are commonly used in today’s database systems. In order to effectively leverage compression, it...
Stratos Idreos, Raghav Kaushik, Vivek R. Narasayya...
ADC
2009
Springer
98views Database» more  ADC 2009»
14 years 4 months ago
Elliptic Indexing of Multidimensional Databases
In this work an R-tree variant, which uses minimum volume covering ellipsoids instead of usual minimum bounding rectangles, is presented. The most significant aspects, which dete...
Ondrej Danko, Tomás Skopal
CSMR
2008
IEEE
14 years 4 months ago
Towards Recovering Architectural Concepts Using Latent Semantic Indexing
Software engineers think about an existing software system in terms of high-level models. The high-level models are translated to source code and the concepts represented in these...
Pieter van der Spek, Steven Klusener, Piërre ...
ICIP
2007
IEEE
14 years 4 months ago
A Novel Image Re-Indexing by Self Organizing Motor Maps
Palette re-ordering is a well known and very effective approach for improving the compression of color indexed images. If the spatial distribution of the indexes in the image is s...
Sebastiano Battiato, Francesco Rundo, Filippo Stan...
MM
2004
ACM
78views Multimedia» more  MM 2004»
14 years 3 months ago
Indexing and matching of polyphonic songs for query-by-singing system
This paper investigates the issues in polyphonic popular song retrieval. The problems that we consider include singing voice extraction, melodic curve representation, and database...
Tat-Wan Leung, Chong-Wah Ngo