Comparison between Google S2R, Pribor’s Combinatorial Magic and Pribor’s CHE (Contextual Hyper-Embedding) This document presents the characteristics, divergences and synergies between three approaches: Google S2R, Pribor’s Combinatorial Magic and Pribor’s CHE (Contextual Hyper-Embedding). 1. Google’s S2R * “S2R” means Speech-to-Retrieval. It is a recent voice search architecture that Google is deploying, which bypasses the explicit…