作者: J. D. Emerald , K. G. Subramanian , D. G. Thomas
DOI: 10.1007/BFB0054078
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摘要: In this paper, Apical growth Pure context-free grammars (AGPCFG) which are a variation of the pure Maurer et al introduced. These allow rewriting active symbols at ends string simultaneously. They also provide another kind called filamentous systems with apical growth, motivated by biological considerations. The family languages generated AGPCFGs is subclass languages. An algorithm for learning language subclass, in framework identification limit from positive examples, provided.