Keyphrases
- multi objective
- recommender systems
- evolutionary algorithm
- multi objective optimization
- optimization algorithm
- collaborative filtering
- multiobjective optimization
- real world
- lessons learned
- particle swarm optimization
- multi objective optimization problems
- objective function
- multiple objectives
- multi objective evolutionary
- evolutionary optimization
- user interests
- user profiles
- open issues
- multiobjective evolutionary algorithm
- genetic algorithm
- key issues
- user preferences
- information filtering
- information overload
- technical challenges
- conflicting objectives
- neural network
- matrix factorization
- cold start problem
- cold start
- mobile devices
- data collection