Keyphrases
- online learning
- query processing
- query language
- query evaluation
- computer mediated
- database
- distance learning
- web search engines
- search queries
- online course
- higher education
- response time
- user queries
- complex queries
- active learning
- database queries
- blended learning
- query logs
- efficient processing
- e learning
- answering queries
- cd rom
- range queries
- query terms
- training data