Improved TBL algorithm for learning context-free grammar
Marcin Jaworski, Olgierd Unold · 2007
Abstract. In this paper we introduce some improvements to the tabular representation algorithm (TBL) dedicated to inference of grammars in Chomsky normal form. TBL algorithm uses a Genetic Algorithm (GA) to solve partitioning problem, and improvements described here focus on this element of TBL. Improvements involve: i nitial population block size manipulation, block delete specialized operator and modified fitness function. The improved TBL algorithm was experimentally proved to be not so much vulnerable to block size and population size, and is able to find the solutions faster. 1