Affiliations: Computer, Electrical and Mathematical Sciences and Engineering Division, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia. {mohammad.azad, igor.chikalov, mikhail.moshkov}@kaust.edu.sa | Institute of Computer Science, University of Silesia, 39, Będzińska St., Sosnowiec 41-200, Poland. beata.zielosko@us.edu.pl
Note: [] Address for correspondence: Institute of Computer Science, University of Silesia, 39, Będzińska St., Sosnowiec 41-200, Poland Also works: Computer, Electrical and Mathematical Sciences and Engineering Division, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
Abstract: In the paper, we study a greedy algorithm for construction of decision trees. This algorithm is applicable to decision tables with many-valued decisions where each row is labeled with a set of decisions. For a given row, we should find a decision from the set attached to this row. Experimental results for data sets from UCI Machine Learning Repository and randomly generated tables are presented. We make a comparative study of the depth and average depth of the constructed decision trees for proposed approach and approach based on generalized decision. The obtained results show that the proposed approach can be useful from the point of view of knowledge representation and algorithm construction.
Keywords: Decision table with many-valued decisions, decision tree, greedy algorithm
