Tomoyuki Uchida

Acquisition of multiple block preserving outerplanar graph patterns by an evolutionary method for graph pattern sets

2017

Knowledge acquisition from graph structured data is an important task in machine learning and data mining. Block preserving outerplanar graph patterns are graph structured patterns having structured variables and are suited to represent characteristic graph …

An Efficient Pattern Matching Algorithm for Unordered Term Tree Patterns of Bounded Dimension

2018 · IEICE Transactions on Fundamentals of Electronics Communications and Computer Sciences

A term is a connected acyclic graph (unrooted unordered tree) pattern with structured variables, which are ordered lists of one or more distinct vertices. A variable of a term has a variable label and can …

Using Label Information in a Genetic Programming Based Method for Acquiring Tag Tree Patterns with Vertex Labels and Wildcards

2022 · EPiC series in computing

Machine learning and data mining from tree structured data are studied intensively. In this paper, as tree structured patterns we use tag tree patterns with vertex and edge labels and wildcards in order to represent …