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DOCENG
2003
ACM
14 years 28 days ago
Accuracy improvement of automatic text classification based on feature transformation
In this paper, we describe a comparative study on techniques of feature transformation and classification to improve the accuracy of automatic text classification. The normalizati...
Guowei Zu, Wataru Ohyama, Tetsushi Wakabayashi, Fu...
ISSAC
2004
Springer
135views Mathematics» more  ISSAC 2004»
14 years 1 months ago
The truncated fourier transform and applications
In this paper, we present a truncated version of the classical Fast Fourier Transform. When applied to polynomial multiplication, this algorithm has the nice property of eliminati...
Joris van der Hoeven
KDD
2004
ACM
182views Data Mining» more  KDD 2004»
14 years 8 months ago
Rotation invariant distance measures for trajectories
For the discovery of similar patterns in 1D time-series, it is very typical to perform a normalization of the data (for example a transformation so that the data follow a zero mea...
Michail Vlachos, Dimitrios Gunopulos, Gautam Das
ECUMN
2007
Springer
14 years 1 months ago
End-to-End Distance Computation in Grid Environment by NDS, the Network Distance Service
This article presents a novel method for computing distances between hosts in a computational Grid. Our method allows to represent the cost to achieve any operation involving some...
Julien Gossa, Jean-Marc Pierson
SIAMREV
2010
140views more  SIAMREV 2010»
13 years 2 months ago
What Shape Is Your Conjugate? A Survey of Computational Convex Analysis and Its Applications
Computational Convex Analysis algorithms have been rediscovered several times in the past by researchers from different fields. To further communications between practitioners, we ...
Yves Lucet