# Term Vector With BiGrams
**URL:** https://discuss.elastic.co/t/term-vector-with-bigrams/86887
**Category:** Elasticsearch
**Created:** [May 24, 2017, 2:26am UTC](https://discuss.elastic.co/t/term-vector-with-bigrams/86887 "2017-05-24T02:26:55Z")
**Posts on this page:** 6
**Page:** 1
### Author:  [@vishva\_deepak\_tewari](https://discuss.elastic.co/u/vishva_deepak_tewari)
#### Post date: [May 24, 2017, 2:26am UTC](https://discuss.elastic.co/t/term-vector-with-bigrams/86887/1 "2017-05-24T02:26:55Z")
Hi,
I have a a document which contains a subdocument, as such I have made the subdocument a nested property of the document. Now i need to find term vectors for the sub document. My terms can be unigrams or bigrams, hence I created an analyzer with shingle filter. The setting for the index is as follows
```
{
"settings": {
"analysis": {
"filter": {
"light_english_stemmer": {
"type": "stemmer",
"language": "light_english"
},
"filter_shingle":{
"type":"shingle",
"max_shingle_size":3,
"min_shingle_size":2,
"output_unigrams":"true",
"filler_token" : ""
}
},
"analyzer": {
"keyword_discovery_analyzer": {
"tokenizer": "standard",
"char_filter": ["html_strip"],
"filter": [
"lowercase",
"filter_shingle",
"light_english_stemmer"
]
}
}
}
},
"mappings": {
"doc" : {
"properties" : {
"name" : {
"type" : "text"
},
"description" : {
"type" : "text",
"analyzer" : "indexing_analyzer",
"search_analyzer": "search_analyzer",
"fields" : {
"termVec": {
"type" : "text",
"term_vector": "yes",
"store" : true,
"analyzer" : "keyword_discovery_analyzer"
}
}
},
"subDoc" : {
"type" : "nested",
"properties" : {
"name" : {
"type" : "text",
"fields" : {
"termVec": {
"type" : "text",
"term_vector": "yes",
"store" : true,
"analyzer" : "keyword_discovery_analyzer"
}
}
},
"description" : {
"type" : "text",
"fields" : {
"termVec": {
"type" : "text",
"term_vector": "yes",
"store" : true,
"analyzer" : "keyword_discovery_analyzer"
}
}
}
}
}
}
}
}
}
```
When i execute request
GET /\_termvectors
{
"fields" : ["subDoc.name.termVec"],
"offsets" : false,
"payloads" : false,
"positions" : false,
"term\_statistics" : true,
"field\_statistics" : true,
"filter" :{
"max\_num\_terms" : 4
}
}
I get empty result. However if instead of the above query i run the following,
GET /12631946/\_termvectors
{
"fields" : ["[subDoc.name](http://subDoc.name)"],
"offsets" : false,
"payloads" : false,
"positions" : false,
"term\_statistics" : true,
"field\_statistics" : true,
"per\_field\_analyzer" : {
"name": "keyword\_discovery\_analyzer"
},
"filter" :{
"max\_num\_terms" : 15
}
}
ES would evaluate term vectors on the fly, and i get the results, but none of the results contains bigram terms all are unigrams.
My analyzer is working correctly, because when I put the same analyzer on my [doc.name](http://doc.name) variable it gives me bigrams when term vectors are computed and stored, however in [doc.name](http://doc.name) as well, if the term vectors are computed at runtime, it always returns me unigrams.
Please let me know what i am doing wrong.
Thanks
Vishvadeepak Tewari
---
### Author:  [@Clinton\_Gormley](https://discuss.elastic.co/u/Clinton_Gormley)
#### Post date: [May 26, 2017, 9:07am UTC](https://discuss.elastic.co/t/term-vector-with-bigrams/86887/2 "2017-05-26T09:07:18Z")
Hmm this looks like a bug to me. Want to open an issue?
---
### Author:  [@vishva\_deepak\_tewari](https://discuss.elastic.co/u/vishva_deepak_tewari)
#### Post date: [May 30, 2017, 6:22am UTC](https://discuss.elastic.co/t/term-vector-with-bigrams/86887/3 "2017-05-30T06:22:58Z")
Yep, what do i need to open issue for this ?
---
### Author:  [@Clinton\_Gormley](https://discuss.elastic.co/u/Clinton_Gormley)
#### Post date: [May 30, 2017, 7:03am UTC](https://discuss.elastic.co/t/term-vector-with-bigrams/86887/4 "2017-05-30T07:03:16Z")
Just go to [https://github.com/elastic/elasticsearch/issues/new](https://github.com/elastic/elasticsearch/issues/new) and provide the info requested.
---
### Author:  [@vishva\_deepak\_tewari](https://discuss.elastic.co/u/vishva_deepak_tewari)
#### Post date: [June 6, 2017, 10:28am UTC](https://discuss.elastic.co/t/term-vector-with-bigrams/86887/5 "2017-06-06T10:28:37Z")
created an issue [https://github.com/elastic/elasticsearch/issues/25070](https://github.com/elastic/elasticsearch/issues/25070)
---
### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [July 4, 2017, 10:28am UTC](https://discuss.elastic.co/t/term-vector-with-bigrams/86887/6 "2017-07-04T10:28:43Z")
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