Keyphrases
- web search
- relevance ranking
- graded relevance
- search engine
- ranking models
- online learning
- result lists
- search result
- query dependent
- real time
- web information retrieval
- document relevance
- user intent
- information retrieval
- web search engines
- product search
- rank correlation
- human judgments
- precision and recall
- user clicks
- social media
- social networks