• Proceedings of the Korean Society for Information Management Conference
• /
• 2005.08a
• /
• pp.403-408
• /
• 2005

현재 정보검색분야에서는 검색도구로써 시소러스가 갖는 장점에도 불구하고 기존에 개발된 시소러스의 유지관리와 활용이 극히 제한적으로 이루어지고 있기 때문이다. 왜냐하면 정보의 급격한 증가로 인하여 전통적인 시소러스의 구조와 유지관리, 활용기법으로는 현대 정보의 홍수 현상에 적극적으로 대처하는데 한계에 직면하였기 때문이다. 이러한 한계점을 극복하기 위해 토픽맵의 구축알고리즘이 절대적으로 필요하였다. 이에 따라 본 연구에서는 토픽맵의 기본요소인 토픽과 대상물, 연관관계, 토픽타입 등을 이용한 시소러스 구조화 알고리즘을 제안하였다. 특히 토픽맵의 기본 요소가운데 대상물(occurrence)은 시소러스의 검색효율가운데 정도율의 확보를 가능하게 하며, 시소러스의 구축에 필요한 지식베이스의 역할을 수행하는 주요한 기법임을 확인하였다.

• Journal of the Korean Society for information Management
• /
• v.26 no.3
• /
• pp.25-43
• /
• 2009

The purpose of this study is to suggest how the classic thesaurus structure of terms and links can be mined and updated from Wikipedia encyclopedia, which is the best practice of collective intelligence. In a comparison with ASIS&T thesaurus, it was found that Wikipedia contains a substantial coverage of domain-specific concepts and semantic relations. Furthermore, it was resulted that the structural characteristics of Wikipedia, such as redirects, categories, and mutual links are suitable to extract semantic relationships of thesaurus. It is needed to apply to update various thesauri, including multilingual thesaurus, in order to generalize the results of this research.

• Journal of the Korean Society for information Management
• /
• v.22 no.3 s.57
• /
• pp.37-53
• /
• 2005

The terminology management is absolutely necessary for maintaining the efficiency of thesaurus. This is because the creating, differentiating, disappearing, and other processes of the descriptor become accomplished dynamically, making effective management of thesaurus a very difficult task. Therefore, a device is required for accomplishing methods to construct and maintain the thesaurus. This study proposes the methods to construct the thesaurus management using the basic elements of a topic map which are topic, occurrence, and association. Second, the study proposes the methods to represent the basic and specific instances using the systematic mapping algorithm and merging algorithm. Also, using a hub document as a standard, this study gives the methods to expand and subsitute the descriptors using the topic type. The new method applying fixed concept for double layer management on terms is developed, too. The purpose of this method is to fix the conceptual term which represents independent concept of time and space, and to select the descriptor freely by external information circumstance.

• Journal of the Korean Society for information Management
• /
• v.21 no.2
• /
• pp.1-21
• /
• 2004

For the guarantee of retrieval ratio, thesaurus's maintenance for descriptors are necessary. To maintain the optimum scale of thesaurus, new terms and existing terms should be structured to the equivalence relationship. Therefore, equivalence relationships are needed to new standard. This study proposes new standard of the equivalence relationships, which is more specified for better guarantee of retrieval ratios. The relationships have seven facets. These six facets will be used as new knowledge-base, which could be reestablished between the descriptors.

• Proceedings of the Korean Society for Information Management Conference
• /
• 2004.08a
• /
• pp.57-60
• /
• 2004

인권 시소러스는 인권 관련 색인어 작성시 특정성 및 일관성을 유지하고, 다양한 이용자 계층의 정보 검색의 효율성을 증진시키고자 하는 일반적인 목적과 함께, 모호하게 사용되고 있는 인권 용어의 개념화를 통해 전문가 뿐 아니라 일반인들도 손쉽게 인권 전문정보에 접근할 수 있는 토대를 마련하고자 하였다. 이를 위해 본 연구에서는 인권 관련어로 유의미하게 사용되는 용어군을 수집한 후 실험대상군을 설정하여 어느 정도의 관련성을 가지는가를 실험한 것이다.

• Journal of the Daesoon Academy of Sciences
• /
• v.19
• /
• pp.21-45
• /
• 2005

The purpose of this study is to examine the establishment and development of Daesoon Thought Thesaurus. Specifically, this study examined the matters to be considered in the stage of Thesauri planning according to the Thesauri Construction process : presents the methods and standards of Thesauri Construction according to processes such as identification of the indexing policy, establishment of Thesauri system, collection of vocabulary, selection of preferred term, clustering of the terms, establishment of term relationships, overall adjustment, Thesauri test, proofreading by professional display, maintenance and updating. Since religion information is unique or totally different from the information in other areas, it is most important to construct the Thesauri suitable for system after carefully recognizing the concept of religion terms.

• Journal of KIISE:Software and Applications
• /
• v.34 no.9
• /
• pp.828-847
• /
• 2007

In this paper we propose a formal data model of an object-based thesaurus system supporting multi-dimensional facets. According to facets reflecting on respective user perspectives, it supports systematic construction, browsing, navigating and referencing of thesauri. Unlike other faceted thesaurus systems, it systematically manages its complexity by appropriately ing sophisticated conceptual structure through visualized browsing and navigation as well as construction. The browsing and navigation is performed by dynamically generating multi-dimensional virtual thesaurus hierarchies called "faceted thesaurus hierarchies." The hierarchies are automatically constructed by combining facets, each representing a dimension of view. Such automatic construction may make it possible the flexible extension of thesauri for they can be easily upgraded by pure insertion or deletion of facets. With a well defined set of self-referential queries, the thesauri can also be effectively referenced from multiple view points since they are structured by appropriately interpreting the semantics of instances based on facets. In this paper, we first formalize the underlying model and then implement its prototype to demonstrate its feasibility.

• Journal of KIISE:Databases
• /
• v.27 no.1
• /
• pp.64-78
• /
• 2000

In this paper, we design and implement a system for managing domain specific thesauri, where object-oriented paradigm is applied to thesaurus construction, concept browsing and query-based reference. This system provides an objected-oriented mechanism to assist domain experts in constructing thesauri; it determines a considerable part of relationship degrees between terms by inheritance and supplies domain experts with information available from a thesaurus being constructed This information is especially useful to enforce consistency between the hierarchies of a thesaurus, each constructed by different experts in different sites through cooperation. It may minimize the burden of domain eIn this paper, we design and implement a system for managing domain specific thesauri, where object oriented paradigm is applied to thesaurus construction, concept browsing and query based reference. This system provides an objected mechanism to assist domain experts in constructing thesauri: it determines a considerable part of relationship degrees between terms by inheritance and supplies domain experts with information available from a thesaurus being constructed. This information is especially useful to enforce consistency between the hierarchies of a thesaurus, each constructed by different experts in different sites through cooperation. It may minimize the burden of domain experts caused from the exhaustive specification of individual relationship. This system also provides an abstracted browsing and a query based reference, which allow users to easily verify thesaurus terms before they are used in usual boolean queries. The verification is made by actively searching for them in the thesaurus. Reference queries and abstracted browsing views facilitate this searching. The facility is indispensable especially when precision counts for much.

• Proceedings of the Korean Society for Information Management Conference
• /
• 1994.12a
• /
• pp.7-10
• /
• 1994

우리나라 연구소의 소규모 검색체계에서는 시소러스를 이용하지 않고 검색체계를 유지해도 별 문제가 없다는 생각을 가져온 것이 사실이다. 그러나 현실적으로는 검색효율이 극히 저조하고 잡음율이 높을 뿐만 아니라 필요한 정보의 접근이 불가능한 경우까지도 있다. 그래서 과연 현 체계대로 검색했을때 검색효율 즉 적합율과 재현율은 어느 정도 인가를 실험을 통해서 측정해 보았더니 극히 저조하다는 결론을 얻었고 그 원인을 분석해 보았다.

• Proceedings of the Korean Information Science Society Conference
• /
• 2005.07b
• /
• pp.457-459
• /
• 2005

전문용어는 사전, 시소러스 및 온톨로지를 비롯한 다양한 기반지식자원에서 사용되고 있으며, 해당분야 발전에 민감하게 반응하는 특징을 가진다. 그럼에도 불구하고, 용어를 생명주기 관점에서 바라보고 이를 효율적으로 사용할 수 있도록 하는 연구가 부족하다. 본 논문에서는 한정된 인적${\cdot}$물적 자원을 효율적으로 사용할 수 있도록 가까운 미래에도 유용한 용어들을 선정하고 관리하기 위한 방안으로서 용어지배값 (TDV; Term Dominance Value)을 제안한다. 이를 통해 용어 생명주기의 각 단계를 생성, 성장, 유지, 쇠퇴, 소멸, 재생 등으로 정의함으로써 관리해야 할 대상 용어를 명확히 할 수 있도록 한다. 용어지배값과 Coverage와의 관계 실험을 통해 유망한 용어들을 선정하고 관리해야 하는 당위성을 보여준다.