Keyphrases
- ranking list
- learning to rank
- search engine
- scientific documents
- scientific data
- ranking functions
- information retrieval
- differential equations
- artificial intelligence
- mathematical model
- retrieval systems
- data mining
- document similarity
- keywords
- web search
- document classification
- text categorization
- science education
- retrieved documents
- query dependent
- document clustering
- scientific papers
- text documents
- document images
- google scholar