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"" (double quotes) to only get results where the phrase is exactly matched. For example "PyTorch for the IPU" or "replicated tensor sharding"* (asterisk) at the end of any word to indicate a prefix query. This will return results containing all words with the specific prefix. For example tensor*~N (tilde followed by a number) at the end of any word for a fuzzy search. This will return results that are similar to the search word. N specifies the “edit distance” (fuzziness) of the match. For example Polibs~1~N (tilde followed by a number) after a phrase (in quotes) returns results where the words are close to each other. N is the maximum number of positions allowed between matching words. For example "ipu version"~2+ signifies AND operation| signifies OR operation- negates a single word or phrase (returns results without that word or phrase)() controls operator precedenceThis document is a fairly high-level description of the algorithmic design of the dynamic sparse matrix multiplication in the Graphcore PopSparse library. It provides a guide to the code and some pointers to the implementation.