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ICDE
2010
IEEE
183views Database» more  ICDE 2010»
13 years 11 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...
INFORMATICALT
2011
147views more  INFORMATICALT 2011»
12 years 11 months ago
On Comparison of the Estimators of the Hurst Index of the Solutions of Stochastic Differential Equations Driven by the Fractiona
This paper presents a study of the Hurst index estimation in the case of fractional Ornstein–Uhlenbeck and geometric Brownian motion models. The performance of the estimators is ...
Kestutis Kubilius, Dmitrij Melichov
DCC
2007
IEEE
13 years 11 months ago
Data Hiding based Compression Mechanism for 3D Models
: The paper proposes a lossy compression mechanism for 3D models (3D meshes) by improving existing compression mechanism such as progressive meshes and single refinement mesh compr...
Hui Li, Parag Agarwal, Balakrishnan Prabhakaran
ICMCS
2009
IEEE
136views Multimedia» more  ICMCS 2009»
13 years 2 months ago
Single-iteration full-search fractional motion estimation for quad full HD H.264/AVC encoding
Fractional motion estimation (FME) is widely used in video compression standards. In H.264/AVC, the precision of motion vector is down to quarter pixels to improve the coding effi...
Pei-Kuei Tsung, Wei-Yin Chen, Li-Fu Ding, Chuan-Yu...
CN
2000
109views more  CN 2000»
13 years 4 months ago
On near-uniform URL sampling
We consider the problem of sampling URLs uniformly at random from the Web. A tool for sampling URLs uniformly can be used to estimate various properties of Web pages, such as the ...
Monika Rauch Henzinger, Allan Heydon, Michael Mitz...