Keyphrases
- user modeling
- sequential data
- hidden markov models
- fixed length
- user model
- sequence data
- sequential patterns
- sequential pattern mining
- user interface
- spatio temporal
- information filtering
- user profiles
- recommender systems
- information retrieval
- pattern mining
- pattern discovery
- user interests
- web search
- variable length
- multi dimensional
- text mining
- relevance feedback