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» A fuzzy approach to automatic data locality optimization
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CIDR
2007
100views Algorithms» more  CIDR 2007»
14 years 11 months ago
Database Cracking
Database indices provide a non-discriminative navigational infrastructure to localize tuples of interest. Their maintenance cost is taken during database updates. In this paper, w...
Stratos Idreos, Martin L. Kersten, Stefan Manegold
BMCBI
2008
138views more  BMCBI 2008»
14 years 10 months ago
Methods for simultaneously identifying coherent local clusters with smooth global patterns in gene expression profiles
Background: The hierarchical clustering tree (HCT) with a dendrogram [1] and the singular value decomposition (SVD) with a dimension-reduced representative map [2] are popular met...
Yin-Jing Tien, Yun-Shien Lee, Han-Ming Wu, Chun-Ho...
ICRA
2006
IEEE
119views Robotics» more  ICRA 2006»
15 years 3 months ago
Polygonal Approximation of Laser Range Data based on Perceptual Grouping and EM
— Our goal is polygonal approximation of laser range data points obtained by a mobile robot. The proposed approach provides a precise estimation of the number of model components...
Longin Jan Latecki, Rolf Lakämper
SIGMOD
2012
ACM
253views Database» more  SIGMOD 2012»
13 years 7 days ago
Skew-aware automatic database partitioning in shared-nothing, parallel OLTP systems
The advent of affordable, shared-nothing computing systems portends a new class of parallel database management systems (DBMS) for on-line transaction processing (OLTP) applicatio...
Andrew Pavlo, Carlo Curino, Stanley B. Zdonik
ISVC
2007
Springer
15 years 3 months ago
Image Compression Using Data-Dependent Triangulations
We present a method to speed up the computation of a high-quality data-dependent triangulation approximating an image using simulated annealing by probability distributions guided ...
Burkhard Lehner, Georg Umlauf, Bernd Hamann