HitIct

a Chinese corpus for the evaluation of lossless compression algorithms based on ANSI code

was proposed.In accordance with the principle of application representativeness

Complementary principle and openness principle

a large number of candidate files were obtained from the Internet

and then average compression ratio

average correlation coefficient

compression ratio correlation coefficient and standard deviation were used to select the files that give the most accurate indication of the overall performance of compression algorithms.Experimental results show that this collection has a good representativeness and stability

and can be used as the supplementary test set of the main benchmark for comparing compression methods.