MS MARCO click-translation expansion tables ("poor man's" DSSM) [P]

A developer created a "poor man's" DSSM (Deep Structured Semantic Model) using count-based translation tables to enrich inverted indexes for full-text search. This method, which can improve baseline BM25, is not claimed to be a new idea but was developed for fun and for use in a personal search engine project. The developer shared this technique, which is referred to as MS MARCO click-translation expansion tables, with the dev community.

This report details a practical, count-based translation table approach to enrich inverted indexes, unlike more complex DSSM models, specifically for improving BM25 in full-text search.