We propose an algorithm that tests membership for regular expressions and show that the algorithm is correct. This algorithm is written in the style of a sequent proof system. The...
This paper presents the prediction-preserving reducibility with membership queries (pwm-reducibility) on formal languages, in particular, simple CFGs and finite unions of regular ...
A combinatorial channel is a set of pairs of words describing all the possible input-output channel situations. We introduce the concept "maximal error-detecting capability&q...