Classification Using the PAQ8 Data Compression Algorithm
By Byron Knoll, UBC CS
PAQ8 is an open source lossless data compression algorithm that currently achieves the best compression rates on many benchmarks. Any compression algorithm can be used for classification. Although compression-based classification is nonstandard, it has been shown to perform well for text categorization tasks. We develop a classification algorithm based on PAQ8 and show that it can be used to achieve competitive classification rates in two disparate domains: text categorization and shape recognition.

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