Budget control 2 Crowd-sensing 2 Genetic algorithms 2 Incentive mechanism 2 Multi-task allocation 2 Multiple tasks 2 Sensing systems 2 Sensing tasks 2 Smart devices 2 Task allocation 2 Time-sensitive 2 Workers' 2 crowd-sensing 2 genetic algorithm 2 incentive mechanism 2 multitask allocation 2 time-sensitive 2 Benchmarking 1 Biology, life sciences 1 Classification (of information) 1 Depression detection 1 Detection approach 1 Emotion elicitation 1 End to end 1 Feature extraction 1 Features selection 1 Logistic regression 1 Machine learning 1 Mobile crowd sensing 1 Multi-modal 1