Palindromic Subsequence Automata and Longest Common Palindromic Subsequence.

Md. Mahbubul Hasan, A. S. M. Sohidull Islam, M. Sohel Rahman, Ayon Sen

Abstract: In this paper, we present a novel weighted finite automaton called palindromic subsequence automaton (PSA) that is a compact representation of all the palindromic subsequences of a string. Then we use PSA to solve the longest common palindromic subsequence problem. Our automata based algorithms are efficient both in theory and in practice.