Historical Information Retrieval Model based on Period Query Using Time-Variant Extraction of Historical Object

Abstract

In providing historical information, current searching service requires users to do repetitive information retrieval and filtering process by supplying search results based on simple keyword query that does not reflect the characteristic of historical information. If the information retrieval service reflecting the feature of time-variant is provided, users would be able to save time and reduce unnecessary effort that is repetitively consumed to acquire desired historical information. Moreover, users can get the systemic retrieving result of historical information reflecting the phrase of the times. Hereupon, in this paper, we suggest theoretical Basis for historical information retrieval and provision by analyzing common character of historical information and defining historical object. Furthermore, we suggest a historical information retrieval model consist of three-classes that are 'Collecting Historical Information, Extracting Time-Variant and structuralization of Historical Information, The Information-Providing Space' to provide users with historical information based on particular period considering one of the common character of historical information. Suggested model, through Crawler and Wrapper, automatically collects historical information from Web and restructure collected historical information to time-series considering the aspects of 'period' and 'relation' that the historical information has. Finally, it carries out structuralization based on correlation of historical objects. Also, by retrieving historical information in particular period using 'Period Query', which can search information correspondent to time-variant, one of the features of historical information, users can obtain search results that dynamically change according to the chosen particular period, although they searched the same historical keyword. Therefore, users can effectively retrieve information by reducing complicated retrieve process when they look up historical information which has the feature of time-variant. In addition, by going through the structuring process, we provide not only required historical information but also additional information such as correlation of historical objects by information graphics that are intuitive user interface. Thus, users could effectively search and acquire historical information.