Acquisition And Analysis Method Of Immovable Property Public Opinion Information Based On Time And Space And Theme Constraints

The land department needs to understand the system through the network public opinion monitoring to reform public opinion,solve and control social contradictions in a timely manner,and promote the steady progress of immovable property related work.General public opinion collection and analysis methods do not have good effect on public opinion information of smaller topic types.How to quickly and accurately obtain the information of the immovable property public opinion?How to diversify the information of immovable property public opinion?It is the key to solve the problem of management and control of the public opinion of the government department of the immovable property.This article aims at the news and comment information of the news websites,micro-blog,post bar and other platforms in the Internet space.From three angles of time,space and theme,the methods of obtaining,extracting and diversifying the information of immovable property network public opinion are studied.Then it provides the decision-making support for the Ministry of land.The main contents and conclusions of this paper include the following aspects:(1)The characteristics and expression model of the information of the immovable property network public opinionIn this paper,according to the basic description of the information of the immovable property web public opinion,the system of the information classification of the immovable property network public opinion is put forward.This paper analyzes the content elements and the text descrption characteristics of immovable property public opinion information,summarizes five elements of Internet public opinion content,and puts forward the information expression model of immovable property public opinion information.(2)The method of web page acquisition and content analysis of immovable property public opinion under the constraints of time and space and themeBased on the subject words of artificial summary,this paper constructs the theme hierarchy model of immovable property public opinion with the help of the calculation method of word association degree.Combined with the time mode and the place name dictionary,we collect the public opinion information of immovable property by various collection methods.Referring to the natural language text extraction method,we improve and optimize the existing methods,and extract the content elements information of immovable property public opinion.(3)Analysis method of immovable property diversification based on time and space and themeBased on the localization of place names and the serialization of dates,based on three different dimensions of time,space and theme,this paper makes a diversified analysis of immovable property network public opinion.Besides the general topic hotspots analysis and sentiment orientation analysis,we summarize the temporal and spatial distribution characteristics of immovable property public opinion information,and analyze the relevance between time and location in semantic space.Taking a provincial immovable property data as an example,we verified the above related methods,developed the prototype system and deployed it on the land department's immovable property cloud platformThe research results show that the immovable property public opinion information expression model can realize the management and storage of information better on the basis of fully considering the information characteristics of online public opinions.The public opinion information collection method based on space-time and subject constraints can effectively and accurately retrieve and obtain the network public opinion information in a specific area with a small topic area.The improved and optimized information extraction method can better complete the elements of immovable property public opinion information and form a structured public opinion information.The time and space and thematic analysis method of immovable property can accurately analyze hot topics,emotional tendencies,and temporal and spatial distribution of public opinion under a given scope of theme time and space,and the semantic relevance in different space-time intervals.