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PAKDD
2005
ACM
164views Data Mining» more  PAKDD 2005»
14 years 1 months ago
Covariance and PCA for Categorical Variables
Covariances from categorical variables are defined using a regular simplex expression for categories. The method follows the variance definition by Gini, and it gives the covaria...
Hirotaka Niitsuma, Takashi Okada
DBPL
2005
Springer
135views Database» more  DBPL 2005»
14 years 1 months ago
Type-Based Optimization for Regular Patterns
Pattern matching mechanisms based on regular expressions feature in a number of recent languages for processing XML. The flexibility of these mechanisms demands novel approaches ...
Michael Y. Levin, Benjamin C. Pierce
SIAMSC
2008
146views more  SIAMSC 2008»
13 years 7 months ago
Long Time Numerical Solution of the Navier--Stokes Equations Based on a Sequential Regularization Formulation
Abstract. The sequential regularization method is a reformulation of the unsteady Navier-Stokes equations from the view point of constrained dynamical systems or approximate Helmho...
Ping Lin, Jian-Guo Liu, Xiliang Lu
CIKM
1998
Springer
13 years 12 months ago
Supporting Fast Search in Time Series for Movement Patterns in Multiple Scales
An important investigation of time series involves searching for \movement" patterns, such as \going up" or \going down" or some combinations of them. Movement patt...
Yunyao Qu, Changzhou Wang, Xiaoyang Sean Wang
CASES
2009
ACM
14 years 2 months ago
CheckerCore: enhancing an FPGA soft core to capture worst-case execution times
Embedded processors have become increasingly complex, resulting in variable execution behavior and reduced timing predictability. On such processors, safe timing specifications e...
Jin Ouyang, Raghuveer Raghavendra, Sibin Mohan, Ta...