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Sparse Sequential Dirichlet Coding

Veness, Joel; Hutter, Marcus


This short paper describes a simple coding technique, Sparse Sequential Dirichlet Coding, for multi-alphabet memoryless sources. It is appropriate in situations where only a small, unknown subset of the possible alphabet symbols can be expected to occur in any particular data sequence. We provide a competitive analysis which shows that the performance of Sparse Sequential Dirichlet Coding will be close to that of a Sequential Dirichlet Coder that knows in advance the exact subset of...[Show more]

CollectionsANU Research Publications
Type: Working/Technical Paper


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