• Proceedings of the Korean Information Science Society Conference
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• 2001.04b
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• pp.280-282
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• 2001

인터넷의 발달로 웹에서 제공되는 정보와 서비스의 양이 폭발적으로 증가하고 있다. 따라서 사용자들은 보다 쉽게 빠르게 정보를 찾을 수 있도록 지원해 주는 정보 검색 에이전트에 대한 개발을 요구하고 있다. 본 논문에서는 사용자에게 적합한 도서 정보를 검색 및 추천하는 멀티 에이전트 시스템을 설계한다. 그리고 여러 에이전트 사이의 행동을 제어하는 CA(Coordination Agent) 에이전트의 조정 기능과 각 에이전트간의 통신을 지원하는 KQML처리의 알고리즘을 구현한다. 구현 결과 CA의 Message Queue 비교를 토한 조정 기능은 IEA(Information Extraction Agent)의 중복된 정보검색을 방지하여 보다 빠르고 효율적인 정보 검색의 효과를 얻을 수 있었고, KQML은 JAVA의 클래스로 구현하여 본 시스템에서 사용된 메시지 이외의 모든 KQML 메시지 처리 기능을 포함할 수 있도록 하였다.

• Journal of Digital Convergence
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• v.19 no.3
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• pp.187-194
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• 2021

OSINT(Open Source Intelligence), rapidly increasing on the surface web in various forms, can also be used for criminal investigations by using profiling. This technique has become quite common in foreign investigative agencies such as the United States. On the other hand, in Korea, it is not used a lot, and there is a large deviation in the quantity and quality of information acquired according to the experience and knowledge level of investigator. Unlike Bazzell's most well-known model, we designed a Korean-style OSINT-based profiling technique that considers the Korean web environment and provides timeline information, focusing on the improved workflow. The database schema to improve the efficiency of profiling is also presented. Using this, we can obtain search results that guarantee a certain level of quantity and quality. And it can also be used as a standard training course. To increase the effectiveness and efficiency of criminal investigations using this technique, it is necessary to strengthen the legal basis and to introduce automation technologies.

• Proceedings of the Korean Information Science Society Conference
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• 2000.10a
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• pp.181-183
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• 2000

본 논문에서는 메시징 서버를 이용한 문서 관리 시스템을 제안한다. 본 문서관리 시스템은 각 구성 부분들을 콤포넌트 단위로 설계하고, 메시징 서버를 기본 엔진으로 사용한다. 엔진으로 메시징 서버를 사용하면 각각의 문서를 하나의 객체로 처리할 수 있게 되어 문서 객체들에 대한 직접적인 관리가 가능해지므로 프로젝트 관리, 문서 권한 관리, 새로운 문서 유형의 추가 수정등이 용이하고, 문서들을 계층적 구조로 저장 검색하기에 용이하다. 이 시스템은 워크플로우와 같은 메시징 기반의 시스템과의 연동에 쉽게 적용될 수 있다.

• Proceedings of the Korea Information Processing Society Conference
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• 2015.10a
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• pp.1152-1155
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• 2015

네트워크상의 사이버 공격을 막고 원인분석 및 공격지를 찾기 위하여, 네트워크패킷 캡쳐 및 플로우 데이터를 수집 저장하고, 수집된 정보를 고속으로 검색하여 분석하는 것을 필요로 한다. 인터넷의 발달과 네트워크를 이용하는 기기들이 많아짐에 따라 네트워크상에는 1초에 수백만 개의 네트워크 패킷이 이동하고 있다. 이러한 대용량 네트워크 패킷을 고속으로 저장하고 검색하기 위하여, 대용량 저장 및 검색에 가장 적합한 데이터베이스를 이용하는 것이 중요하다. 대용량 네트워크 데이터의 저장에 가장 최적인 데이터베이스를 찾기 위해 이 논문에서는 관계형 데이터베이스(MySQL)와 컬럼기반 데이터 베이스(InfiniFlux), 그리고 Bitmap Index 기반 저장구조(FastBit)를 사용하여 로딩속도와 검색 속도, 그리고 각각의 디스크 사용량을 비교하였다.

• The KIPS Transactions:PartB
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• v.8B no.6
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• pp.617-624
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• 2001

With the proliferation of E-Commerce, product informations and services are provided to customers diversely. Thus customers want a software agent that can retrieve and recommend goods satisfying various purchase conditions as well as price. In this paper, we present a MAS (multi-agent system) for book information retrieval and recommendation in E-Commerce. User's preference is reflected in the MAS using the profile which is taken by user. The proposed MAS is composed of individual agents that support information retrieval, information recommendation, user interface, and web robots and a coordination agent which performs information sharing and job management between individual agents. Our goal is to design and implement this multi-agent system on a Windows NT server. Owing to the workflow management of the coordination agent, we can remove redundant information retrievals of web robots. From the results, we could provide customers various purchase conditions for several online bookstores in real-time.

• Proceedings of the Korea Information Processing Society Conference
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• 2003.05b
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• pp.859-862
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• 2003

지금까지의 기술자료관리는 수작업의 비효율성과 복잡한 절차로 인해 업무의 시간 손실을 발생시켜 왔다. 대용량 저장장치, 그래픽 디스플레이 및 네트워킹 같은 정보기술 진보는 효과적인 전자문서 처리를 가능하게 했다. 본 논문에서 기술하고자하는 XKO-1의 통합기술 정보시스템 모델은 방대한 문서 데이터베이스를 개발하고 XKO-1 항공기의 도면, 기술문서 및 비행시험 자료의 관리와 처리를 지원하기 위한 기술을 보여주기 위한 것이다. 또한 ITIS 프로그램은 워크플로우를 이용한 문서저장기능과 스캐너를 사용해서 문서를 디지탈화, 전자화, 색인화 및 압축화하여 데이터베이스에 저장할 뿐만 아니라, 프로세스에 따라 검색 및 분배된다.

• The KIPS Transactions:PartD
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• v.13D no.4 s.107
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• pp.501-512
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• 2006

XML is the most popular platform-independent data expression which is used to communicate between loosely coupled heterogeneous systems such as B2B Applications or Workflow systems. The powerful query language XQuery has been developed to support diverse needs for querying XML documents. XQuery is designed to configure results from diverse data sources into a uniquely structured query result. Therefore, it became the standard for the XML query language. Although the latest XQuery supports heavy search functions including iterations, the grouping mechanism for data is too primitive and makes the query expression difficult and complex. Therefore, this work is focused on supporting the groupby clause in the query expression to process XQuery grouping. We suggest it to be a more efficient way to process grouping for restructuring and aggregation functions on XML data. We propose an XQuery EBNF that includes the groupby clause and implemented an XQuery processing system with grouping functions based on the eXist Native XML Database.

• Journal of the Korean Data and Information Science Society
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• v.27 no.5
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• pp.1273-1284
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• 2016

In this paper, we analyzed the patents on machine learning using keyword network analysis and clique analysis. To construct a keyword network, important keywords were extracted based on the TF-IDF weight and their association, and network structure analysis and clique analysis was performed. Density and clustering coefficient of the patent keyword network are low, which shows that patent keywords on machine learning are weakly connected with each other. It is because the important patents on machine learning are mainly registered in the application system of machine learning rather thant machine learning techniques. Also, our results of clique analysis showed that the keywords found by cliques in 2005 patents are the subjects such as newsmaker verification, product forecasting, virus detection, biomarkers, and workflow management, while those in 2015 patents contain the subjects such as digital imaging, payment card, calling system, mammogram system, price prediction, etc. The clique analysis can be used not only for identifying specialized subjects, but also for search keywords in patent search systems.

• The KIPS Transactions:PartD
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• v.8D no.3
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• pp.211-220
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• 2001

A planning agent supporting customers plays a distinguished role in internet marketplaces. Although several internet marketplaces have been built with the maturity of tools based on internet and distributed technologies, there has been no actual study up to now with respect to the implementation of the planning agent. This paper describes the design and implementation of an XML-based planning agent for internet marketplaces. Since implementing internet marketplaces encounter problems similar to those in other fields such as multidatabase or workflow management systems, we first compare those features. Next we identify functions and roles of the planning agent. The planning agent is implemented using COM+, ASP, and XML, and demonstrated using real data used in an existing system.

• The Journal of Korea Institute of Information, Electronics, and Communication Technology
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• v.14 no.2
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• pp.161-167
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• 2021

Laboratory Information Management System(LIMS) is a centralized database for storing, processing, retrieving, and analyzing laboratory data, and refers to a computer system or system specially designed for laboratories performing inspection, analysis, and testing tasks. In particular, LIMS is equipped with a function to support the operation of the laboratory, and it requires workflow management or data tracking support. In this paper, we collect data on websites and various channels using crawling technology, one of the automated big data collection technologies for the operation of the laboratory. Among the collected test methods and contents, useful test methods and contents useful that the tester can utilize are recommended. In addition, we implement a complementary LIMS platform capable of verifying the collection channel by managing the feedback.