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JGAA
2008
97views more  JGAA 2008»
14 years 11 months ago
Drawing Bipartite Graphs on Two Parallel Convex Curves
Let G be a bipartite graph, and let e, i be two parallel convex curves; we study the question about whether G admits a planar straight-line drawing such that the vertices of one p...
Emilio Di Giacomo, Luca Grilli, Giuseppe Liotta
ECML
2007
Springer
15 years 5 months ago
Fast Optimization Methods for L1 Regularization: A Comparative Study and Two New Approaches
L1 regularization is effective for feature selection, but the resulting optimization is challenging due to the non-differentiability of the 1-norm. In this paper we compare state...
Mark Schmidt, Glenn Fung, Rómer Rosales
JMM2
2006
110views more  JMM2 2006»
14 years 11 months ago
Two-Stage PCA Extracts Spatiotemporal Features for Gait Recognition
We propose a technique for gait recognition from motion capture data based on two successive stages of principal component analysis (PCA) on kinematic data. The first stage of PCA ...
Sandhitsu R. Das, Robert C. Wilson, Maciej T. Laza...
IFIP
2007
Springer
15 years 5 months ago
Coordinating the Service Process of Two Business Units towards a Joint Customer
The paper presents a new theoretical framework for coordinating an inter-unit collaborative service process towards a joint customer. The common service process is itself presente...
Rita Lavikka, Riitta Smeds, Miia Jaatinen, Emmi Va...
ICANN
2009
Springer
15 years 4 months ago
A Two Stage Clustering Method Combining Self-Organizing Maps and Ant K-Means
This paper proposes a clustering method SOMAK, which is composed by Self-Organizing Maps (SOM) followed by the Ant K-means (AK) algorithm. The aim of this method is not to find an...
Jefferson R. Souza, Teresa Bernarda Ludermir, Lean...