Title
Granular Computing Techniques for Classification and Semantic Characterization of Structured Data
Abstract
Abstract We propose a system able to synthesize automatically a classification model and a set of interpretable decision rules defined over a set of symbols, corresponding to frequent substructures of the input dataset. Given a preprocessing procedure which maps every input element into a fully labeled graph, the system solves the classification problem in the graph domain. The extracted rules are then able to characterize semantically the classes of the problem at hand. The structured data that we consider in this paper are images coming from classification datasets: they represent an effective proving ground for studying the ability of the system to extract interpretable classification rules. For this particular input domain, the preprocessing procedure is based on a flexible segmentation algorithm whose behavior is defined by a set of parameters. The core inference engine uses a parametric graph edit dissimilarity measure. A genetic algorithm is in charge of selecting suitable values for the parameters, in order to synthesize a classification model based on interpretable rules which maximize the generalization capability of the model. Decision rules are defined over a set of information granules in the graph domain, identified by a frequent substructures miner. We compare the system with two other state-of-the-art graph classifiers, evidencing both its main strengths and limits.
Year
DOI
Venue
2016
10.1007/s12559-015-9369-1
Cognitive Computation
Keywords
Field
DocType
Granular computing,Automatic semantic interpretation,Frequent substructures miner,Graph matching,Graph classification,Evolutionary optimization,Watershed segmentation
Data mining,Computer science,Inference engine,Artificial intelligence,Decision rule,Graph database,Pattern recognition,Matching (graph theory),Granular computing,Parametric statistics,Preprocessor,Data model,Machine learning
Journal
Volume
Issue
ISSN
8
3
1866-9964
Citations 
PageRank 
References 
0
0.34
19
Authors
5
Name
Order
Citations
PageRank
Filippo Maria Bianchi116015.76
Simone Scardapane233629.24
Antonello Rizzi336341.68
Aurelio Uncini473182.49
Alireza Sadeghian526925.59