A Study On Organization And Visualization Of Web Life Service Information Based On Relative Position

With the rapid development of the Internet, the information of Web life service has gradually penetrated into human life and expanded rapidly. The growing number of Internet users, the focusing of the demands and the increasing of geographical density, provides the prerequisites for the rise of life service sites, but the disorder of Web organization would force the users into "information overload" and "information trek" dilemma. Current information organization of Web service information based on the classification and the location increase the costs of the user access to information and decision-making. In order to solve these problems, this paper proposes information organization of Web service information based on the relative position from the users’ perspective. The paper specifies four common user demand models of this organization type according to the characteristics of user needs diversity and then describes the information organization type using weighted graph. Finally an algorithm of multiple user information demand model is designed, based on which an empirical study of group-buying information is conducted to test the feasibility and effectiveness of this organization type and present its advantages, which utilizes relative position based web life service information organization and combines trip chain theory and Bertin coding principle in information visualization technology. Then the paper conducts an empirical study of this interactive prototype from the perspective of group purchase web life service information in order to test the feasibility and interactivity of this prototype and present its advantages. In general, the work of this paper includes the following aspects:(1) This paper proposes a new organization method which combines the traditional classification and visualization of local-based services, for the shortage of the current network information organization, clarifies background and significance of this research, analyzes the classification of network information organization, and the home and abroad research status of the local-based services and visualization.(2) This paper discusses the organization and visualization of network information theories, including trip chain and Location Based Service.(3) This paper discusses the organizational approach of life service information. It divided into two parts:the first part is the outline of life service information organization methods, mainly discusses on the classification-based, position-based and relative position-based information organization. The second part analyzes the user demand patterns, divided into single information needs of single user, multi-information needs of single user, single information needs of multi-user and multi-information needs of multi-user.(4) This paper describes the organization of website information described in graph theory and algorithms for different types of information needs.(5) This paper describes the implementation process of visualization of information organization. First it introduces the information visualization tool-visual coding, and then design a visual prototype implementation using group-buying website as an example.