Adaptive compression

A computer-readable storage medium storing computer-executable instructions that, when executed, perform a method for compressing multiple streams of data, comprising:

• identifying two or more partitions of each of two or more signals;
• optionally pre-processing one or more signals to make it more suitable for high rate of compression;
• creating one or more evaluation functions to evaluate a suitability for compression of the data in each partition using a set of potential compression methods wherein some of the functions are defined over two or more signals;
• processing the created evaluation functions;
• choosing a subset of the set of potential compression methods for each partition of each signal at least partly by analyzing the evaluation functions;
• selecting a compression method for each partition of each signal based at least on a compression rate of the data in the partition;
• compressing the data in each partition of all signals using the selected compression method, thereby creating a sequence of compression methods wherein each member of the sequence indicates a compression method used to compress a corresponding partition;
• and
• compressing a subsequence of the sequence of compression methods.

A system for compressing data, comprising:

• a component configured to identify two or more partitions of a data stream;
• a component configured to optionally pre-process data in each partition;
• a component configured to create one or more evaluation functions to evaluate a suitability for compression of the data in each partition using a set of potential compression methods;
• a component configured to process the created one or more evaluation functions;
• a component configured to choose a subset of the set of potential compression methods for each partition at least partly by analyzing the evaluation functions;
• a component configured to select a compression method for each partition based on a compression ratio of compressing a sequence of compression methods used to compress the data in a corresponding partition and a compression rate of the data in the corresponding partition;
• a component configured to compress the data in each partition using the selected compression method for the partition;
• and
• a component configured to compress a subsequence of the sequence of compression methods.