Keyphrases
Second Language Learners
100%
Learner Profile
100%
E-learning System
40%
Learning Preferences
40%
Learning Log
40%
Copyright
20%
Second Language Learning
20%
Social Networks
20%
Learning Task
20%
Learning Styles
20%
Individual Learning
20%
Personal Learning
20%
Multiple Data Sources
20%
User Profile
20%
Mean Square Error
20%
Big Data Era
20%
Learner Data
20%
Pedagogical Activity
20%
Data Owner
20%
Personalized Service
20%
Diverse Sources
20%
Mobile Sensor Data
20%
Heterogeneous Data Sources
20%
Novel Metrics
20%
Personalized Data
20%
Mobile Phone Data
20%
Data Access
20%
Computer Science
Language Learner
100%
Learner Profile
100%
Data Source
80%
e-learning Systems
40%
Preference Learning
40%
Mobile Device
20%
Individual Learning
20%
Mobile Sensor
20%
Social Network
20%
Big Data
20%
Multiple Data Source
20%
Data Access
20%
personalized service
20%
Heterogeneous Data
20%