Abstract | ||
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Several real-world problems (e.g., in bioinformatics/proteomics, or in recognition of video sequences) can be described as classification tasks over sequences of structured data, i.e. sequences of graphs, in a natural way. This paper presents a novel machine that can learn and carry out decision-making over sequences of graphical data. The machine involves a hidden Markov model whose state-emission probabilities are defined over graphs. This is realized by combining recursive encoding networks and constrained radial basis function networks. A global optimization algorithm which regards to the machine as a unity (instead of a bare superposition of separate modules) is introduced, via gradient-ascent over the maximum-likelihood criterion within a Baum-Welch-like forward-backward procedure. To the best of our knowledge, this is the first machine learning approach capable of processing sequences of graphs without the need of a pre-processing step. Preliminary results are reported. |
Year | DOI | Venue |
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2010 | 10.1007/978-3-642-12159-3_5 | ANNPR |
Keywords | Field | DocType |
classification task,novel machine,hidden markov model,bare superposition,global optimization algorithm,graphical data,graphical pattern,baum-welch-like forward-backward procedure,structured data,pre-processing step,maximum-likelihood criterion,machine learning,baum welch,global optimization,maximum likelihood,relational learning,radial basis function network | Conditional random field,Superposition principle,Radial basis function,Pattern recognition,Statistical relational learning,Computer science,Artificial intelligence,Hidden Markov model,Data model,Machine learning,Recursion,Encoding (memory) | Conference |
Volume | ISSN | ISBN |
5998 | 0302-9743 | 3-642-12158-6 |
Citations | PageRank | References |
0 | 0.34 | 7 |
Authors | ||
3 |
Name | Order | Citations | PageRank |
---|---|---|---|
Edmondo Trentin | 1 | 286 | 29.25 |
Shujia Zhang | 2 | 43 | 3.05 |
Markus Hagenbuchner | 3 | 706 | 43.30 |