Research Of User Profile Of Virsual Community Based On Topic Model

With the coming of internet plus era,the internet has already showed a vigorous development trend.People know internet more and more easily.Especially with the popularity of mobile internet,people can use their spare time to surf the internet.Because of its brief content and people can express their views anytime and anywhere,so virtual community are popular among people.And the virtual community of micro-blog and we-chat is an important channel to express people's preferences,ask for help,or provide knowledge consultation.As time goes on,the data of virtual community has showed explosive growth and accumulated lots of information.For virtual community platform,how to find the valuable content in it has a very important economic significance.And at the same time,user profile of virtual community attracts people's attention.the user profile will has an objective and accurate description for user's feature,and then identify specific user accurately in virtual community,and meet user's personalized needs.For enterprises,they can use user profile to target population accurately and then provide corresponding products and services.The user profile in virtual community can greatly reduce enterprises' marketing costs,and bring good returns.so,building the user profile is a pressing problem to be solved for virtual community platform.This article is based on data features of virtual community,and combined with LDA topic model as the basic method,and existing user profile model as theoretical basis.Here to build user profile of virtual community by adopting a method combined theory with experience.What's more,by using the user profile to explore its rule and in return,use the rule to verify the model's validity.the following describes its main content.:(1)combing the status of user profile model home and abroad.knowing research on existing user profile of virtual community's progress and deficiency.Under the environment of existing virtual community,we collect user's data of virtual community.(2)designing user profile model progress' framework.And having a detailed instruction of user profile's basic data,construction method,expression way,updating method,analysis method,application and challenge.Here the build of virtual community of user profile support it great.(3)having a description and definition to user profile construction of virtual community which was based on topic model,then proposing a framework of user profile model.finally having a detailed illustration to static user's and dynamic user' s construction method.(4)taking sina micro-blog as an example,collecting lots of user data of virtual community through crawler.According to sample data to build static user profile and dynamic user profile,and in return to verify the validity of model.