Keyphrases
- text retrieval
- free text
- learning styles
- learning experience
- learning activities
- information retrieval
- e learning
- multimedia
- database
- kolmogorov complexity
- content analysis
- text documents
- text mining
- learning environment
- computational complexity
- learning process
- learning resources
- computational cost
- decision problems
- learning materials
- language learning
- learning outcomes
- worst case
- learning processes
- collaborative learning
- space complexity
- textual data
- text information
- reading comprehension
- keywords