Matchmaking services; Internet based social networking, introduction, and dating services; Internet-based dating, social introduction and social networking services; On-line social networking services; Online social networking services for enhancing matchmaking through behavioral science and leveraging the natural social networks of daters; Online social networking services provided through a community website

'base':4,13 'behavior':35 'communiti':52 'date':9,14 'dater':44 'enhanc':32 'internet':3,12 'internet-bas':11 'introduct':7,16 'leverag':38 'line':23 'matchmak':1,33 'natur':40 'network':6,19,25,29,42,47 'on-lin':21 'onlin':27,45 'provid':49 'scienc':36 'servic':2,10,20,26,30,48 'social':5,15,18,24,28,41,46 'websit':53

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