• Journal of the Korea Institute of Information and Communication Engineering
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• v.13 no.1
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• pp.103-109
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• 2009

We build the web document recommending agent system which offers a certain amount of web documents to each user by monitoring and learning the user's action of web browsing. We also propose a method of query expansion using the Korean thesaurus. The queries to search for new web documents generate a candidate set using the Korean thesaurus. We extract the words which are mostly correlated with the queries, among the words in the candidate set, by using TF-IDF and mutual information. Then, we expand the query. If we adopt the system of query expansion, we can recommend a lot of web documents which have potential interests to users. We thus conclude that the system of query expansion is more effective than a base system of recommending web-documents to users.

• Proceedings of the Korean Information Science Society Conference
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• 1998.10c
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• pp.186-188
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• 1998

본 논문에서는 웹에서 사용자의 취향에 부합하는 정보를 지속적으로 수집하여 추천해주는 지능적인 개인용 웹 정보 수집 에이전트의 구현에 대하여 기술한다. 본 논문에서 구현한 에이전트 시스템은 자바언어로 구현되었으며, 인터넷에서 페이지를 모아오는 수집 단계, HTML 문서 색인 단계, 필터링 단계, 사용자가 모니터링 단계, 학습 단계 등 다섯 단계로 구성되어 있다. 웹 페이지는 기존의 검색 엔진으로부터 수집하도록 하였으며, 사용자의 관심에 부합되는 웹 페이지들을 추천하고, 추천된 페이지들에 대한 사용자의 행동을 모니터링하여 사용자의 취향을 학습함으로써 사용자 프로파일을 재구성한다. 본 웹 에이전트 시스템은 암시적인 피드백에 의한 학습을 수행하고 백그라운드에서 동작함으로써 사용자에게 기존의 검색 작업에 따른 시간과 수고를 덜어 주었다.

• Journal of KIISE:Software and Applications
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• v.31 no.4
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• pp.439-446
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• 2004

To design a user-adaptive web surfing system, we nay take the approach to divide the whole process into three phases; collecting user data, processing the data to construct and improve the user profile, and adapting to the user by applying the user profile. We have designed three software agents. Each privately works in each phase and they collaboratively support adaptive web surfing. They are IIA(Interactive Interface Agent), UPA(User Profile Agent), and ANA(Autonomous Navigation Agent). IIA provides the user interface, which collects data and performs mechanical navigation support. UPA processes the collected user data to build and update the user profile while user is web-surfing. ANA provides an autonomous navigation mode in which it automatically recommends web pages that are selected based on the user profile. The proposed approach and design method, through extensions and refinements, may be used to build a practical adaptive web surfing system.