An effective method for data compression based on adaptive character wordlength

الملخص EN

The adaptive character word length (ACW) algorithm is a bit-level, lossless, adaptive, and asymmetric text compression algorithm that is recently proposed.

In this algorithm, the binary sequence is divided into a number of blocks (B) each of n-bit length (n ˃ 8).

This gives each block a possible decimal values ranges from 0 to 2 "-l.

If the number of the different decimal values (d) is equal to or less than 256 (d ≤ 256), then the binary sequence can be compressed using n-bit character word length, rather than using the standard 8-bit character word length.

Thus, a compression ratio of approximately n / 8 can be achieved.

Since the compression ratio is a function of n, this algorithm is referred to as ACW (n).