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ESANN
2008
13 years 10 months ago
Self-Organizing Maps for cyclic and unbounded graphs
Abstract. This paper introduces a new concept to the processing of graph structured information using self organising map framework. Previous approaches to this problem were limite...
Markus Hagenbuchner, Alessandro Sperduti, Ah Chung...
VMV
2000
146views Visualization» more  VMV 2000»
13 years 10 months ago
Efficient Importance Sampling Techniques for the Photon Map
In global illumination computations the photon map is a powerful tool for approximating the irradiance, which is stored independent from scene geometry. By presenting a new algori...
Alexander Keller, Ingo Wald
CORR
2007
Springer
104views Education» more  CORR 2007»
13 years 9 months ago
The Parameter-Less Self-Organizing Map algorithm
—The parameterless self-organizing map (PLSOM) is a new neural network algorithm based on the self-organizing map (SOM). It eliminates the need for a learning rate and annealing ...
Erik Berglund, Joaquin Sitte
IVS
2006
86views more  IVS 2006»
13 years 9 months ago
The origins of the concept mapping tool and the continuing evolution of the tool
A research program at Cornell University that sought to study the ability of first and second grade children to acquire basic science concepts and the effect of this learning on l...
Joseph D. Novak, Alberto J. Cañas
AIED
2007
Springer
14 years 3 months ago
Helping Courseware Authors to Build Ontologies: The Case of TM4L
The authors of topic map-based learning resources face major difficulties in constructing the underlying ontologies. In this paper we propose two approaches to address this problem...
Darina Dicheva, Christo Dichev