# Recommendations returning the matched item **URL:** \ **Category:** Elasticsearch\ **Created:** [April 23, 2018, 4:12pm UTC](https://discuss.elastic.co/t/recommendations-returning-the-matched-item/129143 "2018-04-23T16:12:31Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![mc1392](https://avatars.discourse-cdn.com/v4/letter/m/57b2e6/32.png) [@mc1392](https://discuss.elastic.co/u/mc1392)\ **Post date:** [April 23, 2018, 4:12pm UTC](https://discuss.elastic.co/t/recommendations-returning-the-matched-item/129143/1 "2018-04-23T16:12:31Z")
I send a request for suggestions using 'product A'. My results include the item I am attempting to get recommendations for. Here is the command: ``` POST order_history/ORDERHISTORY/_search { "query": { "match": { "products.keyword": "2013WS7 CASE BASED APPROACH TO DIAGNOSING AND TREATING PATIENTS WITH NON-TUBERCULOUS MYCOBACTERIAL LUNG INFECTIONS" } }, "aggregations": { "products_like_atspbr": { "significant_terms": { "field": "products.keyword", "min_doc_count": 1 } } } } ``` Here are the results, with the matched item as the first result record: ``` "aggregations": { "products_like_atspbr": { "doc_count": 6, "bg_count": 714, "buckets": [ { "key": "2013WS7 CASE BASED APPROACH TO DIAGNOSING AND TREATING PATIENTS WITH NON-TUBERCULOUS MYCOBACTERIAL LUNG INFECTIONS", "doc_count": 6, "score": 118, "bg_count": 6 }, { "key": "2013WS5 DIAGNOSIS AND MANAGEMENT OF PNEUMONIA IN THE IMMUNOCOMPROMISED HOST", "doc_count": 3, "score": 44.125, "bg_count": 4 }, { "key": "2013PG20 RESPIRATORY PHYSIOLOGY MASTER CLASS", "doc_count": 4, "score": 25.77777777777777, "bg_count": 12 }, { "key": "2013PG14 PLEURAL DISORDERS", "doc_count": 3, "score": 21.8125, "bg_count": 8 }, { "key": "2013PG15 LUNG CANCER: STATE OF THE ART IN 2013", "doc_count": 3, "score": 21.8125, "bg_count": 8 }, { "key": "2013WS3 LUNG CANCER TUMOR BOARD: HOW DO EXPERTS MANAGE DIFFICULT CASES?", "doc_count": 1, "score": 19.666666666666664, "bg_count": 1 }, { "key": "2016A9 CONTROVERSIES IN SLEEP MEDICINE: DAVIDS, GOLIATHS, AND SOME BLOOD ON THE FLOOR!", "doc_count": 1, "score": 19.666666666666664, "bg_count": 1 }, { "key": "2013A12 SEVERE ASTHMA: GRADING THE CURRENT EVIDENCE AND PLANNING FOR THE FUTURE", "doc_count": 1, "score": 19.666666666666664, "bg_count": 1 }, { "key": "2013PG8 UNDER PRESSURE: THE RIGHT VENTRICLE IN HEALTH, EXERCISE, AND DISEASE", "doc_count": 1, "score": 19.666666666666664, "bg_count": 1 }, { "key": "2013C83 THE NEW ENGLAND JOURNAL OF MEDICINE AND THE JOURNAL OF THE AMERICAN MEDICAL ASSOCIATION. DISCUSSION ON THE EDGE: REPORTS OF RECENTLY PUBLISHED PULMONARY RESEARCH", "doc_count": 1, "score": 19.666666666666664, "bg_count": 1 } ] } } } ``` Why is the item showing in the results? ---
**Author:** ![Mark\_Harwood](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/mark_harwood/32/10538_2.png) [@Mark\_Harwood](https://discuss.elastic.co/u/Mark_Harwood)\ **Post date:** [April 23, 2018, 4:30pm UTC](https://discuss.elastic.co/t/recommendations-returning-the-matched-item/129143/2 "2018-04-23T16:30:38Z")
The aggregation doesn't "know" about the query whose results it is summarizing. It could, for example, have been a complex regex query or complex Boolean query etc so it doesn't attempt to parse the query logic to know what to exclude as terms. You can typically use the `exclude` setting of the significant\_terms agg to provide an array of terms you don't want to see in the results. ---
**Author:** ![mc1392](https://avatars.discourse-cdn.com/v4/letter/m/57b2e6/32.png) [@mc1392](https://discuss.elastic.co/u/mc1392)\ **Post date:** [April 23, 2018, 6:36pm UTC](https://discuss.elastic.co/t/recommendations-returning-the-matched-item/129143/3 "2018-04-23T18:36:49Z")
thanks! works like a charm! ``` POST order_history/ORDERHISTORY/_search { "query": { "match": { "products.keyword": "2013WS7 CASE BASED APPROACH TO DIAGNOSING AND TREATING PATIENTS WITH NON-TUBERCULOUS MYCOBACTERIAL LUNG INFECTIONS" } }, "aggregations": { "products_like_atspbr": { "significant_terms": { "field": "products.keyword", "min_doc_count": 1, **"exclude**": "2013WS7 CASE BASED APPROACH TO DIAGNOSING AND TREATING PATIENTS WITH NON-TUBERCULOUS MYCOBACTERIAL LUNG INFECTIONS" } } } } ``` ---
**Author:** ![Mark\_Harwood](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/mark_harwood/32/10538_2.png) [@Mark\_Harwood](https://discuss.elastic.co/u/Mark_Harwood)\ **Post date:** [April 23, 2018, 10:17pm UTC](https://discuss.elastic.co/t/recommendations-returning-the-matched-item/129143/4 "2018-04-23T22:17:03Z")
It works for that string but may be slow and not work for other strings. This is because single-string exclude values are interpreted as regex expressions while an array is presumed to contain a list of exact-match strings. Based on this you should put your single string in an array expression ---
**Author:** ![mc1392](https://avatars.discourse-cdn.com/v4/letter/m/57b2e6/32.png) [@mc1392](https://discuss.elastic.co/u/mc1392)\ **Post date:** [April 24, 2018, 1:55pm UTC](https://discuss.elastic.co/t/recommendations-returning-the-matched-item/129143/5 "2018-04-24T13:55:00Z")
Point taken! Thanks ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [May 22, 2018, 1:55pm UTC](https://discuss.elastic.co/t/recommendations-returning-the-matched-item/129143/6 "2018-05-22T13:55:08Z")
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