Keyphrases
- learning systems
- learning process
- neural network
- learning problems
- information retrieval
- database
- human interaction
- image database
- human computer
- human subjects
- human experts
- learning tasks
- retrieval systems
- background knowledge
- online learning
- supervised learning
- probabilistic model
- mobile robot
- prior knowledge
- xml documents
- reinforcement learning
- decision trees
- search engine
- learning algorithm