Behavioral research Authentication 1 Authentication scheme 1 Bio-capacitance 1 Biometric features 1 Capacitance 1 Collaborative filtering 1 Collaborative filtering recommendations 1 Communications effects 1 Computational devices 1 Insider attack 1 Negative information 1 News information 1 Personalized recommendation 1 Positive energies 1 Propagation characteristics 1 Re authentications 1 Recommendation algorithms 1 Recommendation methods 1 Recommender systems 1 Reliable 1 Social justice 1 Touch screens 1 Touching behavior 1 Transparency 1 User cooperation 1 User-transparent 1 bio-capacitance 1 re-authentication 1 reliable 1