Short text, based on the platform of web2.0, gained rapid development in a relatively short time. Recommendation systems analyzing user’s interest by short tex
Voting is a general and indispensable method, and widely used to express a choice or preference, to elect a person, or to choose an opinion by ballot in educati
Limited by the sampling capacity of the mobile devices, many real-time indoor location systems have such problems as low accuracy, large variance, and non-smoot