Research On Object Oriented Hypermedia Data Organization Based On NoSQL

Historical geography informationization is a cross discipline of geography,history and computer science,and is also an emerging research area.Nanjing,as an ancient capital of China,the related research is relatively weak.Historical geographical data has the characteristic of heterogeneous,multi-source,non structural,fuzzy and so on.Historical geography attachs the importance to the value of the data itself instead of data organization,which causes the difficulties in organization,management,operation and sharing the data.However,hypermedia data model is a good way to solve such problem of unstructured data.Based on this,the paper set Jiankang in the Six Dynasties as the space-time background,starting from the historical literature,to sort out the time,place,people and events,as the four key elements of the hypermedia association network,and then,establish the Jiankang Historical Geographic hypermedia information network.In accordance with the idea of data model theory?data organization method?case practice to expand discussion.The main work and research results are as follows:(1)Improve and consummate the theory of OOMH-GIS model.Respectively improved the storage layer,information member layer and organization layer of the OOMH-GIS model.On the basis of the data layer,the identification device,the parser and the response function are added to make the data storage change from function data storage to the data block which is the basic data function unit;changing the create table of information member to the member description rules,redefine the object structure of the information member layer,so that it can be more flexible to express complex unstructured data;the original model divid organization layer into the network layer and the view layer,and the improved model describe the detail about the dynamic update mechanism of the information network and the retrieval navigation method.(2)The paper proposes "Object-Document" hypermedia data structure,the method to organize the hypermedia data.Based on the NoSQL database,the "object-Document" hypermedia data structure is proposed,setting predefined class as base,subject class as a framework,object as the concrete image,document as carrier,which put forward data organization method of Predefined class?Subject class?Object?Document.(3)Establish a method for extracting information from the literature,and design Jiankang historical geographic hypermedia database.Taking Jiankang historical geographic hypermedia information network as an example,based on the historical documents,we sort out the "time,place,people,event",as the four key elements of the hypermedia network.Combined with the spatial and temporal framework of basic geographic information,archaeological data and multimedia data,the research has formed a set of work flow to extract imformation from historical literature,which is summarized as "Historical records-Information-Data",and establish the Jiankang historical geographic hypermedia database.(4)Construction of Jiankang historical geography hypermedia information system in six dynasties.Based on hypermedia data model theory + data organization method +Jiankang historical geographic hypermedia information network,we practice a series of theories and methods,and then formed the Jiankang historical geographic hypermedia information system,in which we design and implement of the data relationship module,the search navigation module and the mining analysis module of"time,place,people and event".