An improved data structure for cumulativ
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Alistair Moffat
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Article
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1999
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John Wiley and Sons
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English
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In 1994 Peter Fenwick at the University of Auckland devised an elegant mechanism for tracking the cumulative symbol frequency counts that are required for adaptive arithmetic coding. His structure spends O(log n) time per update when processing the sth symbol in an alphabet of n symbols. In this not