Percolatorを用いたカテゴリ分類

2018-08-02 Elasticsearch勉強会
https://www.meetup.com/ja-JP/Tokyo-Elastic-Fantastics/events/252971593/

1. Percolator id:tarao @oarat 2018-08-02 Elasticsearch
2. (id:tarao @oarat) 2008-10 ( ) 2010-04 (DC1) 2013-04 2013-12 2017-02 ◮ ◮ , ◮ ◮ Scala
4. ◮ (2015 ) ◮
6. :
7. ◮ ◮ ◮
8. pull ◮ (Complement Naive Bayes) ◮ ◮ ◮ N ◮ ◮
9. pull
10. pull ◮ ◮ ◮ Elasticsearch ◮ Memcached
11. pull
12. pull ◮ ◮ ◮ ◮ ( ) ◮ N ( N ) ◮
13. push ◮ ( ) ◮ ( )
14. push
15. ◮ ◮
16. ◮ ◮ ⇒ Percolator
17. Percolator https://en.wikipedia.org/wiki/Coffee_percolator
18. Percolator (Scala) createIndex(MainIndex).mappings( mapping("issue_item_query") fields percolatorField("query")) val query = issueItem.query.toCategorizingQuery.toFilteredQuery register(query) into(MainIndex / "issue_item_query", "query") withId issueItemId.toPercolatorId search(MainIndex / "issue_item_query") query { percolateQuery("entry", "query") usingSource entry.toEsEntry.toJsonString }
19. Percolator (API) PUT /MainIndex/issue_item_query { "mappings": { "_doc": { "properties": { "query": { "type": "percolator" } } } } } PUT /MainIndex/issue_item_query/issueItemId { "query": query } GET /MainIndex/issue_item_query/_search { "query": { "percolate": { "document_type": "entry", "field": "query", "document": entry } } }
20. ◮ ◮ OR
21. ◮ ◮ ◮ ◮
22. ◮ ×8 ◮ ×250+ ◮ ×800+
24. ◮ ◮ 1 ◮ ◮ ( ) ◮ ◮
25. ◮ ◮ ◮ ? ( kuromoji ) ◮ ◮ → ◮ ◮ ◮ Percolator ◮ Percolator ? ◮
26. ◮ push ◮ Percolator ◮ push ◮