• Proceedings of the Korean Information Science Society Conference
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• 2000.10a
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• pp.361-363
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• 2000

최근 초고속 통신망의 원활한 관리와 운용을 위해 이질적인 통신망을 연동할 수 있게 하는 일관성있는 통신망 구조와 다양한 기술적 환경이 요구된다. 이런 추세에 따라 차세대 인터넷 네트워킹 서비스를 위한 분산 망 관리와 객체지향 개념 및 기존 통신 개념을 포함하는 TINA 구조를 기반으로한 망 관리 영역을 제시하고, 이들의 다양한 관리 영역별로 특수화된 정보 관리와 네트워크 간의 호환성 있는 정보 엑세스를 위한 인터페이스가 필요하다. 따라서 본 논문에서는 망 관리자들이 통합된 인터네트워킹 상태에서 웹 브라우저의 단일 인터페이스를 통해 네트워크 상태를 확인, 모니터링할 수 있는 실제적인 시스템 개발을 위한 분석과 설계 및 프로토타이핑에 초점을 맞추고 있다. 이를 위해 UML 방법론을 채택하고 이를 지원하는 CASE 도구를 이용해 분석과 설계를 수행하였으며, 망 관리자의 일관성 있는 투명한 관리를 위해서 CORBA와 Java 기반의 분산 객체 기술을 이용해 시스템을 개발하고자 한다.

• Information and Communications Magazine
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• v.33 no.10
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• pp.40-48
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• 2016

본고에서는 최근 활발하게 연구되고 있는 심층 학습에 대하여 알아본다. 기계 학습 분야 중 하나인 심층 학습은 인공 신경망의 한 형태인 심층 신경망을 통해 구현된다. 심층 신경망은 기존 다층 신경망의 구조와 거의 유사한 학습 구조를 가지지만, 학습 과정에서 발생하는 부정확한 학습 문제를 해결함으로써 최근의 성공을 이끌어낼 수 있었다. 본고에서는 다층 신경망이 가지고 있던 문제점들을 심층 신경망에서 어떻게 극복하였는지 심층 신경망의 발전 과정을 통해 알아보고, 기계 학습의 기본개념을 바탕으로 이를 설명하여 비전문가들의 이해를 돕고자 하였다.

• KIPS Transactions on Software and Data Engineering
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• v.5 no.11
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• pp.549-554
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• 2016

ConceptNet is a common sense knowledge base which is formed in a semantic graph whose nodes represent concepts and edges show relationships between concepts. As it is difficult to make knowledge base integrity, a knowledge base often suffers from incompleteness problem. Therefore the quality of reasoning performed over such knowledge bases is sometimes unreliable. This work presents neural tensor networks which can alleviate the problem of knowledge bases incompleteness by reasoning new assertions and adding them into ConceptNet. The neural tensor networks are trained with a collection of assertions extracted from ConceptNet. The input of the networks is two concepts, and the output is the confidence score, telling how possible the connection between two concepts is under a specified relationship. The neural tensor networks can expand the usefulness of ConceptNet by increasing the degree of nodes. The accuracy of the neural tensor networks is 87.7% on testing data set. Also the neural tensor networks can predict a new assertion which does not exist in ConceptNet with an accuracy 85.01%.

• Journal of the Korean Society for information Management
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• v.19 no.1
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• pp.47-69
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• 2002

The concept based retrieval model has shown a higher performance than those of the simple matching function method or the P-norm retrieval method introduced to compensate the demerits of the Boolean retrieval model. However. it takes too long to create a semantic-net knowledge base, which is essential in concept exploration. In order to solve such demerits. a method was sought out by creating a distributed knowledge base by subjects to reduce construction time without hindering the performance of retrieval.

• Annual Conference on Human and Language Technology
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• 2001.10d
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• pp.494-499
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• 2001

최근의 인터넷 정보검색은 방대한 정보의 수용과 지능적이고 개인화된 검색 결과 요구라는 사뭇 상반된 요구를 만족시켜야 한다. 기계적으로 키워드를 매칭시켜 나오는 문서를 사용자에게 맡기는 식의 검색은 더 이상 환영을 받지 못한다. 우리는 이러한 추세에 맞추어 의미기반 정보검색에 필요한 개념망과 정답문서집합으로 구성된 지식베이스를 제안한 바 있다. 본 논문에서는 방대한 구조의 개념망과 연결되는 정답문서집합을 유동적인 인터넷 환경에 적용하기 위해 자동으로 구축하는 시스템을 제시한다. 자동구축은 문서분류(document categorization) 기술을 활용하여 개념어에 문서를 할당하는 방법과 속성에 문서를 할당하는 방법으로 나누어 이루어진다. 제시한 방법은 실험을 통하여 기본적인 속성 할당에는 상당한 효과가 있는 것으로 판단되었고, 일부 미할당 문서에 대해서는 클러스터링과 같은 다른 알고리즘이 필요하다.

• Journal of the Korean Applied Science and Technology
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• v.37 no.4
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• pp.733-743
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• 2020

The purpose of this study is to explore the perception of K-pop dance and Taekwondo performances in Movement culture using semantic network analysis. The research subjects were selected from 105 students from K University in Daejeon. The method of selecting the research subject was a snowball sampling method among non-probability sampling methods, and a mobile Google questionnaire was used as the research tool. The results are as follows. First, it was found that the concepts of 'globalization', 'culture', and 'celebrity' in K-pop dance are the main cognitive concepts calculated more than 20 times. Second, as a result of analyzing the meaning network of K-pop dance recognition, it was found that the concepts of 'culture', 'popularity', and 'famous' are the main concepts of k-pop dance recognition. Third, the Taekwondo performance can be confirmed that the concepts of 'good', 'Korea', and 'temperance' are the main concepts calculated more than 20 times. Fourth, as a result of analyzing the meaning network of Taekwondo performance recognition, it was found that the concepts of 'movement', 'Korea', and 'good' are the main concepts of Taekwondo performance recognition.

• The KIPS Transactions:PartC
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• v.8C no.5
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• pp.683-692
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• 2001

In this paper, an integrated network management agent has been proposed and implemented to support different network management protocols, SNMP (Simple Network Management Protocol) for Internet and CMIP (Common Management Information Protocol) for OSI networks. We used MOVI (Managed Object View Interface) concept to integrate the different network management systems. We reviewed three models to design the integrated network management agent and then selected a suitable model among them. The logical structure of an agent, the implementation method and the operation of each module have been shown in this paper. The osimis and ucd-snmp network management system have been used as the reference systems for implementing our system. The integrated network management agent can support the internetworking between Internet and OSI networks in the aspect of network management. Using MOVI concept, if a new management system is introduced, internetworking with this can be achieved by adding the new interface on the view interface of managed object.

• Korean Journal of Construction Engineering and Management
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• v.7 no.4 s.32
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• pp.91-99
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• 2006

The purpose of this study is propose an Artificial Neural Network(ANN) model for the construction estimate of the public educational facility at conceptual stage. The current method for the preliminary cost estimate of the public educational facility uses a single-parameter which is based on basic criteria such as a gross floor area. However, its accuracy is low due to the nature of the method. When the difference between the conceptual estimate and detailed estimate is huge, the project has to be modified to meet the established budget. Thus, the ANN model is developed by using multi-parameters in order to estimate the project budget cost more accurately. The result of the research shows 6.82% of the testing error rates when the developed model was tested. The error rates and the error range of the developed model are smaller than those of the general preliminary estimating model at conceptual stage. Since the proposed ANN model was trained using the detailed estimate information of the past 5 years' school construction data, it is expected to forecast the school project cost accurately.

• Journal of Satellite, Information and Communications
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• v.12 no.2
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• pp.71-78
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• 2017

A network neutrality is the concept that ISP assures users non-discrimination, interconnection, accessibility for ensuring users without control or interference of equal services in the network. But today a network traffic is growing rapidly in sensitive buffering services as P2P service diffusion and mass video stream service. To manage this problem, ISP violates a net neutrality by control, change and interfere with service. And then the debate about net neutrality is happening. Therefore in this paper, we compare and analyze net neutrality principles, concepts, and legislative policy in the native and foreign. Based on this, we suggested the issues and improvement plan of net neutrality guard line.

• Electronics and Telecommunications Trends
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• v.9 no.4
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• pp.99-112
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• 1994

본 고에서는 망관리 개념과 망관리 목적에 따른 모델별 연구 동향을 조사 분석하였으며, 망관리 프로토콜인 Internet 상의 SNMP, SNMPV2, CMOT와 ISO 상의 CMIP, 그리고 LAN 상의 LMMP에 대한 발전 과정과 기능의 비교 분석을 통하여 각각의 특성을 도출하였다. 또한 망관리 통합 기술의 분석 등 망관리 기술의 전반적인 동향을 검토하였다.