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» On the Discovery of Random Trees
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CG
2005
Springer
15 years 6 months ago
A polar-plane-based method for natural illumination of plants and trees
We introduce an illumination method for outdoor scenes containing plants and trees. Our method supports multiresolution plant and tree models based on random L-systems. The method...
Maria J. Vicent, Vicente Rosell, Roberto Viv&oacut...
GECCO
2007
Springer
166views Optimization» more  GECCO 2007»
16 years 16 days ago
Comparison of tree and graph encodings as function of problem complexity
In this paper, we analyze two general-purpose encoding types, trees and graphs systematically, focusing on trends over increasingly complex problems. Tree and graph encodings are ...
Michael D. Schmidt, Hod Lipson
ICML
2004
IEEE
15 years 11 months ago
Kernel-based discriminative learning algorithms for labeling sequences, trees, and graphs
We introduce a new perceptron-based discriminative learning algorithm for labeling structured data such as sequences, trees, and graphs. Since it is fully kernelized and uses poin...
Hisashi Kashima, Yuta Tsuboi
COLING
2008
15 years 7 months ago
Unsupervised Induction of Labeled Parse Trees by Clustering with Syntactic Features
We present an algorithm for unsupervised induction of labeled parse trees. The algorithm has three stages: bracketing, initial labeling, and label clustering. Bracketing is done f...
Roi Reichart, Ari Rappoport
ICANN
2010
Springer
15 years 6 months ago
Tumble Tree - Reducing Complexity of the Growing Cells Approach
We propose a data structure that decreases complexity of unsupervised competitive learning algorithms which are based on the growing cells structures approach. The idea is based on...
Hendrik Annuth, Christian-A. Bohn