2.1 Overview

In Government and Binding Theory(Chomsky 1981), the principles and parameters are assumed to constitute the innately given knowledge which constrains first language acquisition. The cluster grammar attempts to elucidate the acquisition of the language ability by the construction of the cluster graphs and other data through reinforcement learning. The construction of the cluster graphs on human brains can be interpreted as a sort of connectionism.
Interpretation of the acquisition of the language ability by the connectionism causes a problem; it is difficult to elucidate the short amount of time in which an infant acquires a language. This problem will be solved by the assumptions that there is a part of the brain specialized to the acquisition of the language ability i.e. the algorithms, or that there are more efficient algorithms.