ML meets Economics
- implicit: full data & model pipeline, article
 - LightFM: article
 - How to build Item2Vec (or W2V) for item recommendations in retail
 
- OK.ru: graph based recsys, article
 - OK.ru: Neural item recommendations with cold start, article
 - HH.ru: classic 2 level model of search at hh.ru, article
 - Okko competition: classic 2 level model, article
 - Yandex.Dzen: fit ALS -> fit Catboost on warm embeddings to predict warm&cold embeddings, 15-25min in video
 - TikTok: No use of popularity features! post
 - Instagram: Insights on candidate generation articles
 - DoorDash: Store2Vec as a feature in recommendations
 - Pinterest: Multi-taste user embeddings
 - AirBnb: Hotel2Vec with novel positive samples approach
 
- HRNN, Temporal-Contextual Recommendation in Real-Time
 
- How to use W2V and FastText for search: Query2Vec
 - Avito: FAISS for fast similar embedding search
 - Similar vectors search with Nmslib (HNSW - hierarchical navigable small world), FAISS (embeddings space K-means clustering + Product quantizer) and Annoy (divides embeddings space with a binary tree)
 - ElasticSearch basics
 - DoorDash Elasticsearch meets logistic regression
 
- Avito: Recommending additional item - upsell with advanced W2V
 
- Directly optimizing Uplift in recsys by change in target
 
- Avito Multi-armed bandits for item2item recommendations
 - RecSys 2018 paper on multi-armed badits for explainable recommendations
 - Pinterest: Personal notification volume optimization
 - Uber.Eats: Multi objective optimisation in recsys, article
 - Avito: Multi-objective optimization in search
 - VK: Directly optimizing business metrics
 - GlowByte Consulting: Customer communication chains optimization with RL
 
- Measure user surprise by serendipidy metric