**Information retrieval**
[Information science](https://texonom.com/information-science-8734f0dd21e44aefafdfcb1e07a11dbb) 


## IR
### **Information retrieval notion**
|Title|
|:-:|
|[Query understanding](https://texonom.com/query-understanding-7c28f0f55171420c9f13ef42588933c6)|
|[Query expansion](https://texonom.com/query-expansion-992f53e5ac9f46a4afc9dc1109bf7c2a)|



> [Information retrieval](https://en.wikipedia.org/wiki/Information_retrieval)





