I'm afraid that if the queries are given in such a loose natural language form, the only way to handle it is to introduce some natural language processing stage that would form the right query (which is actually a working strategy, IBM does so).
If your document structure is fixed (i.e., you know types of nested documents and what fields they exactly contain) , you can try to introduce some basic NLP that will detect the entities or nouns,e.g., "driver" and "car" (try AlchemyLanguage API http://www.alchemyapi.com/products/demo/alchemylanguage for this) and you will also need some syntactic parser to connect black+driver and white+mercedes correctly. >Среда, 20 апреля 2016, 15:31 -04:00 от Yangrui Guo <guoyang...@gmail.com>: > >Hi thanks for answering. My problem is that users do not distinguish what >color the color belongs to in the query. For example, "which black driver >has a white mercedes", it is difficult to distinguish which color belongs >to which field, because there can be thousands of car brands and >professions. Is there anyway that can achieve the feature I stated been >fore? > >On Wednesday, April 20, 2016, Alisa Z. < prol...@mail.ru > wrote: > >> Yangrui, >> >> First, have you indexed your documents with proper nested document >> structure [ >> >> https://cwiki.apache.org/confluence/display/solr/Uploading+Data+with+Index+Handlers#UploadingDatawithIndexHandlers-NestedChildDocuments >> ]? >> From the peice of data you showed, it seems that you just put it right as >> it is and it all got flattened. >> >> Then, you'll probably want to introduce a distinguishing >> "type"/"category"/"path" fields into your data, so it would look like this: >> >> { >> type:top >> id: >> { >> type:car_color >> car: >> color: >> } >> { >> type:driver_color >> driver: >> color: >> } >> } >> >> >> >Wed, 20 Apr 2016 -3:28:33 -0400 от Yangrui Guo < guoyang...@gmail.com >> <javascript:;>>: >> > >> >hello >> > >> >I have a nested document type in my index. Here's the structure of my >> >document: >> > >> >{ >> >id: >> >{ >> > car: >> > color: >> >} >> >{ >> > driver: >> > color: >> >} >> >} >> > >> >However, when I use the query q={!parent >> >which="content_type:parent"}+(black AND driver)&fq={!parent >> >which="content_type:parent"}+(white AND mercedes), the result also >> >contained white driver with black mercedes. I know I can put fields before >> >terms but it is not always easy to do this. Users might just enter one >> >string. How can I modify my query to require that the terms between two >> >parentheses must appear in the same child document, or boost those meet >> the >> >criteria? Thanks >> >>
