Title
A Maximum-Likelihood Connectionist Model for Unsupervised Learning over Graphical Domains
Abstract
Supervised relational learning over labeled graphs, e.g. via recursive neural nets, received considerable attention from the connectionist community. Surprisingly, with the exception of recursive self organizing maps, unsupervised paradigms have been far less investigated. In particular, no algorithms for density estimation over graphs are found in the literature. This paper introduces first a formal notion of probability density function (pdf) over graphical spaces. It then proposes a maximum-likelihood pdf estimation technique, relying on the joint optimization of a recursive encoding network and a constrained radial basis functions-like net. Preliminary experiments on synthetically generated samples of labeled graphs are analyzed and tested statistically.
Year
DOI
Venue
2009
10.1007/978-3-642-04274-4_5
ICANN (1)
Keywords
Field
DocType
unsupervised learning,supervised relational,density estimation,considerable attention,recursive encoding network,recursive self,formal notion,probability density function,graphical domains,recursive neural net,maximum-likelihood pdf estimation technique,connectionist community,maximum-likelihood connectionist model,neural net,maximum likelihood,radial basis function,relational learning
Density estimation,Pattern recognition,Statistical relational learning,Computer science,Self-organizing map,Unsupervised learning,Artificial intelligence,Artificial neural network,Probability density function,Connectionism,Machine learning,Recursion
Conference
Volume
ISSN
Citations 
5768
0302-9743
3
PageRank 
References 
Authors
0.40
4
2
Name
Order
Citations
PageRank
Edmondo Trentin128629.25
Leonardo Rigutini21179.52