The boosting query can be used to
effectively demote results that match a given query.
For example, I want to get all the
documents, where description contains “religious Buddhist Christian”. I want to
give positive boost to the documents that contains word “religious” and
negative boost to the documents that contain word “Buddhist Christian”.
GET /books/philosophy/_search { "query": { "boosting": { "positive" :{ "term": { "description" : "religious" } }, "negative": { "term":{ "description" : "Buddhist Christian" } }, "negative_boost": 0.2 } } }
Above query
returns following result.
{ "took": 3, "timed_out": false, "_shards": { "total": 5, "successful": 5, "failed": 0 }, "hits": { "total": 2, "max_score": 0.2116434, "hits": [ { "_index": "books", "_type": "philosophy", "_id": "1", "_score": 0.2116434, "_source": { "pages": 1152, "title": "The Book of Secrets", "description": "These techniques will not mention any religious ritual. No temple is needed, you are quite enough of a temple yourself. You are the lab; the whole experiment is to go on within you. This is not religion, this is science. No belief is needed. Only a daringness to experiment is enough; courage to experiment is enough.", "ISBN": "0312180586", "publisher": "St. Martins Griffin", "author": { "firstName": "Osho", "lastName": "Chandra Mohan Jain" }, "price": 1500, "tags": [ "Spiritual", "Philosophy", "secrets" ] } }, { "_index": "books", "_type": "philosophy", "_id": "4", "_score": 0.109375, "_source": { "pages": 152, "title": "Emotions: Freedom from Anger, Jealousy and Fear", "description": "I am not a Buddhist, but a Christian. I started reading, just to see what it was about and read the whole thing. The beginning is a very relaxing read and had some highlightable/clipable quotes. I do have different religious beliefs, this book offered some areas for further prayer and contemplation but I did not find these areas offensive so much as a beneficial exposure to a different perspective", "ISBN": "1938755928", "publisher": "Osho Media International", "author": { "firstName": "Osho", "lastName": "Chandra Mohan Jain" }, "price": 400, "tags": [ "Spiritual", "Philosophy", "emotions", "freedom", "angry", "Jealousy", "Fear" ] } } ] } }
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