Abnormal Item Detection Based on Time Window Merging for Recommender Systems.
Lingtao QiHaiping HuangPeng WangRu Chuan WangPublished in: TrustCom/BigDataSE (2018)
Keyphrases
- recommender systems
- anomaly detection
- user preferences
- collaborative filtering
- recommendation algorithms
- object detection
- detection algorithm
- personalized recommendation
- cold start
- cold start problem
- detection rate
- automatic detection
- detection accuracy
- false positives
- abnormal behavior
- matrix factorization
- recommendation systems
- user modeling
- user ratings
- user profiling
- user modelling
- user similarity
- web pages
- rating prediction
- data sparsity
- false alarms
- user model
- eye tracking
- detection method
- user profiles