In our [slim-binary, adaptive compression] encoding, the vocabulary initially consists … primitive operations … and the [program's] data items … The abstract syntax tree is … encoded into a stream of symbols from the … [compression] … For each [subtree], it searches the current vocabulary … [After encoding a subtree, it removes out-of-scope symbols.] … [p. 91] [Compresses the code to about 1/3 the size.] [p. 92] [The slim-binary is 25% smaller than the compressed uncommented source code.]
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