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AUTOMATICA
2004
87views more  AUTOMATICA 2004»
14 years 11 months ago
Exponential stabilization of the rolling sphere
Abstract-- In an earlier paper [3], we addressed the problem of stabilization of the rolling sphere about any desired configuration. For the controller proposed in [3], we establis...
Tuhin Das, Ranjan Mukherjee
69
Voted
COMBINATORICS
2002
62views more  COMBINATORICS 2002»
14 years 11 months ago
New Lower Bounds for Heilbronn Numbers
The n-th Heilbronn number, Hn, is the largest value such that n points can be placed in the unit square in such a way that all possible triangles defined by any three of the point...
Francesc Comellas, J. Luis A. Yebra
COMPUTING
2002
80views more  COMPUTING 2002»
14 years 11 months ago
A Method for Approximate Inversion of the Hyperbolic CDF
It has been observed by E. Eberlein and U. Keller that the hyperbolic distribution fits logarithmic rates of returns of a stock much better than the normal distribution. We give a...
Gunther Leobacher, Friedrich Pillichshammer
88
Voted
CORR
2002
Springer
180views Education» more  CORR 2002»
14 years 11 months ago
Non-negative sparse coding
Abstract. Non-negative sparse coding is a method for decomposing multivariate data into non-negative sparse components. In this paper we briefly describe the motivation behind this...
Patrik O. Hoyer
BC
1998
98views more  BC 1998»
14 years 11 months ago
The dynamics of long-term exploration in the rat
A simple analytical model is proposed here that captures to a large extent the kinematic structure of rat exploratory behavior. Previous studies have shown that such behavior consi...
Ofer Tchernichovski, Yoav Benjamini, Ilan Golani