Computer data compression utilizing multiple symbol alphabets and dynamic binding of symbol alphabets

A computer-implemented method for improving compression of digital data, the method comprising:

• generating, based on the digital data, an alphabet with which to generate a symbol-encoded digital data from the digital data;
• generating the symbol-encoded digital data from the digital data by performing string matching on the digital data utilizing the generated alphabet;
• and
• performing frequency matching on the symbol-encoded digital data to generate a compressed version of the digital data, wherein the compressed version of the digital data comprises one or more headers comprising a bit vector identifying whether the digital data itself possesses attributes, each attribute being represented a single bit of the bit vector.

A system for compressing digital data, the system comprising:

• one or more processing units;
• and
• memory storing instructions that, when executed by the one or more processing units, cause the system to perform operations comprising:
• performing a first string matching on a portion of the digital data utilizing a first alphabet from multiple alphabets, the first alphabet comprising a first set of symbols, each representing one of a first set of discrete pre-defined sequences of bits, the first alphabet also comprising a second set of symbols, each representing an offset-length pair from among a first set of offset-length pairs;
• performing, a second string matching on the portion of the digital data utilizing a second alphabet, from among the multiple alphabets, the second alphabet comprising a third set of symbols, each representing one of a second set of discrete pre-defined sequences of bits that differs from the first set of discrete pre-defined sequences of bits, the second alphabet also comprising a fourth set of symbols, each representing an offset-length pair from among a second set of offset-length pairs that differs from the first set of offset-length pairs;
• and
• based on the first string matching and the second string matching, selecting one of the first alphabet or the second alphabet with which to generate symbol-encoded digital data from the digital data;
• generating the symbol-encoded digital data from the digital data by performing string matching on the digital data utilizing the selected alphabet;
• and
• generating a compressed version of the digital data by performing frequency matching on the symbol-encoded digital data.