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Workshop: Information-Theoretic Principles in Cognitive Systems (InfoCog)
Natural Language Systematicity from a Constraint on Excess Entropy
Richard Futrell
Abstract:
Natural language is systematic: utterances are composed of individually meaningful parts which are typically concatenated together. We argue that natural-language-like systematicity arises in codes when they are constrained by excess entropy, the mutual information between the past and the future of a process. In three examples, we show that codes with natural-language-like systematicity have lower excess entropy than matched alternatives.
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