Efficient Integer Retrieving from Unordered Compressed Sequences

Igor O. Zavadskyi

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arXiv · 2302.05869

Efficient Integer Retrieving from Unordered Compressed Sequences

Igor O. Zavadskyi

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Abstract

The variable-length Reverse Multi-Delimiter (RMD) codes are known to represent sequences of unbounded and unordered integers. When applied to data compression, they combine a good compression ratio with fast decoding. In this paper, we investigate another property of RMD-codes - the ability of direct access to codewords in the encoded bitstream. We present the method allowing us to extract and decode a codeword from an RMD-bitstream in almost constant time with the tiny space overhead, and make experiments on its application to natural language text compression.

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Igor O. Zavadskyi. 2023-02-12. Efficient Integer Retrieving from Unordered Compressed Sequences. https://arxiv.org/abs/2302.05869

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