UCSC-CRL-95-17: A NEW DATA STRUCTURE FOR CUMULATIVE PROBABILITY TABLES: AN IMPROVED FREQUENCY-TO-SYMBOL ALGORITHM

03/01/1995 09:00 AM
Computer Science
A recent paper presented a new efficient data structure, the ``Binary Indexed Tree\'\', for maintaining the cumulative frequencies for arithmetic data compression. While algorithms were presented for all of the necessary operations, significant problems remained with the method for determining the symbol corresponding to a known frequency. This report corrects that deficiency. This report is being filed also with the Department of Computer Science, The University of Auckland, as Technical Report 110, ISSN 1173-3500.

UCSC-CRL-95-17

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