There's a few projects that use ES/lucene as a backend/datastore once the feature engineering is done, but I don't see models operating on the native indexes di

There's a few projects that use ES/lucene as a backend/datastore once the feature engineering is done, but I don't see models operating on the native indexes directly, maybe the format is too different from one-hot (after turning off stemming/stopwords and other info-losing steps) http://lucene.472066.n3.nabble.com/Where-Search-Meets-Machine-Learning-td4203127.html http://lucene.472066.n3.nabble.com/Where-Search-Meets-Machin... https://news.ycombinator.com/item?id=11876542 https://news.ycombinator.com/item?id=11876542