Proof-of-concept implementation of a search engine that uses sparse matrix multiplication to identify the best peptide candidates for a given mass spectrum.
Not gonna implement this, as I can just do two seperate searches - not worth the effort. But for non-cleavable search this should be an option in MS Annika.
E.g. get top_n/2 targets and top_n/2 decoys instead of top_n of merged target-decoy database