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Elasticsearch 5.0.0 released
- stuartaxelowen 10y agoI'm particularly excited about the inclusion of Lucene 6's KD trees, allowing for up to 8-dimensional geometric search. Normally you'd use that for geolocation stuff, which is fine, but I'm excited about the possible applications for using it to index document embeddings!
- stuartaxelowen 10y agoRelated, Lucene (and thus Elasticsearch) moved to BM25, which can be understood relative to the traditional TF*IDF here: http://opensourceconnections.com/blog/2015/10/16/bm25-the-next-generation-of-lucene-relevation/ http://opensourceconnections.com/blog/2015/10/16/bm25-the-ne...