Roman Grebennikov
Engineer and co-creator/maintainer of Metarank, the open-source LTR secondary re-ranker. Writes and speaks on practical ranking, LambdaMART, and feature engineering for search relevance. Earlier worked at Findify (white-label e-commerce search), where he built real-time personalized ranking across ~1,500 stores — the experience behind his MICES 2019 talk.
Articles
- Learn-to-Rank with OpenSearch and Metarank —
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Talks
- Roman Grebennikov - Personalizing Search Results in Real-Time (MICES 2019) — LTR at Findify, Position Bias, Exploration vs Exploitation