Research On Key Technology Of Micro-blog Sensitive Information Traceability

With the rapid development of Internet technology and the updating of people's ideas,various online social media have a profound impact on people's daily life,especially micro-blog has become an important mean of public opinion communication.But everything is doubleedged sword,micro-blog generated some sensitive information which will seriously harm the network and social order.When a micro-blog sensitive information is released through the guidance of some "big V" users and a large number of ordinary micro-blog users who is potential and the number is large forwarding comments.It will often mislead the general public and disrupt the normal network environment.If we want to reduce or even eliminate this effect,we need to identify the source of the sensitive information and the route of transmission.Therefore,only by mastering the communication characteristics of micro-blog information and studying the tracing technology of micro-blog information can effectively control the public opinion information and play a positive role to the large extent.In micro-blog information tracking traceability technology,this paper crawled through the WEB crawler program to pick up the specific keywords of the relevant sensitive micro-blog and the post of micro-blog is picked up to words,desiccation and other pretreatment operations.The core content of this paper: it will focus on micro-blog sensitive information source technology research is divided into link forwarding traceability research,fully replicated forwarding traceability research and implicit forwarding traceability research.The research on implicit forwarding traceability is the focus and difficulty of this paper,because according to microblog's transmission rules and characteristics,the path of information transmission after link forwarding and fully replicated forwarding is easy to construct.Due to the existence of subjective changes to micro-blog information,the implicit forwarding relationship leads to the phenomenon that the source of micro-blog is difficult to find and the path of transmission is difficult to construct.In the research of implied forwarding traceability research,this paper proposes a short text similarity algorithm which combines Chinese FrameNet and semantic dependency parsing.Firstly,the target words of a particular statement are identified and the frame of the statement is obtained,and then the semantic dependencies parsing in the core frame elements of the statement are analyzed from the perspective of the single word meaning and the whole statement.In order to measure the similarity between the two statements.And the improved statement similarity algorithm is applied to the similarity judgment of micro-blog short text,combined with micro-blog post release time and the introduction of the concept of microblogging transmission probability of forwards implicit relationship between the source found micro-blog sensitive information and propagation path.The experimental results show that the classification traceability method proposed in this paper is more effective in tracing the sensitive information of micro-blog.And it can provide a new idea for dealing with micro-blog sensitive information cases by cyber security police in public security bureau.