• Journal of the Korea Institute of Information and Communication Engineering
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• v.17 no.10
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• pp.2301-2308
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• 2013

These days, Rehabilitation psychology analysis system is being used by world wide web in everyday's life. And on the other hand, we are facing spam messages' problems. To block these spam message, we are using filtering or pricing systems. But these solutions are raising other problems such as impediment in reception or availability caused by false positive or payment resistance. To solve these problems, we propose an Indirect Model on Message Control System(IMMCS) which controls an unsolicited message and prevents an useful message from discarding. We design and implement the IMMCS to enhance the usefulness and the availability. Being tested the IMMCS to verify the usability and the efficiency, it gave us a very successful result.

• KSII Transactions on Internet and Information Systems (TIIS)
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• v.10 no.8
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• pp.3958-3971
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• 2016

With Internet of Things (IoT) technology, home environment becomes smarter than ever. Not only smart devices such as smart phone or smart TV, but also various IoT devices including sensor, smart thermostat, and smart scale has now become very common on the market. These devices have connectivity to the Internet, so that user can read data from the device or control the device using Internet technology. However, due to diversity of smart home requirements, device collaboration in smart home remains a challenging task still. Usually smart home is built with various technologies to fulfill its own purpose, and these purposes cover very wide area from controlling low-power sensor devices to controlling high-performance devices like smart TV and smart phone. This variety of smart home requirements makes smart home very complicated due to mixed network architecture, protocol and technology. In this paper, a framework to enable managing and collaborating heterogeneous IoT devices in smart home environment is proposed. Several programming models are defined in the proposed framework to make application development for heterogeneous devices more intuitive. The proposed framework has been implemented as a web service, and a case study with real-world smart home IoT devices is presented.

• The Journal of the Acoustical Society of Korea
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• v.21 no.1
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• pp.27-36
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• 2002

VoiceXML is a standard dialog mark-up language for the neat generation voice applications. The current VoiceXML 1.0 specification is silent on who place outbound calls for push-based voice applications. The push-barred voice applications become very important in modern information systems such as CRM. In this paper, we design and implement an extended VoiceXML platform that supports both inbound and outbound voice information services. We also extend the VoiceXML DTD so as to be able to inbound/outbound fax based on Call Control Requirements of W3C.

• Proceedings of the Korean Information Science Society Conference
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• 2006.10c
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• pp.77-82
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• 2006

최근 컴퓨팅 환경은 클라이언트-서버(client-server) 환경에서 웹(World Wide Web)을 기반으로 한 분산 컴퓨팅(distributed computint) 환경으로 변화하고 있다. 그에 따라 XML 문서의 사용과 XML 문서의 양이 급속하게 증가하였다. 언제 어디서나 쉽게 필요한 XML 문서에 접근해야하며, 이러한 응용을 위해 짧은 시간 내에 그 정보를 전달할 수 있어야 한다. 이에 따라 분산 환경에서의 XML 문서의 처리가 요구된다. XML 데이터를 분산 데이터베이스의 특성을 이용하여 저장, 관리, 질의하는 분산 XML 데이터베이스 시스템(Distributed XML Database System)의 사용의 필요성이 증가하고 있다. 이에 따라, 사이트의 자치성, 질의 최적화, 데이터의 투명성 등에 큰 영향을 미치는 분산 XML 데이터베이스 시스템에서의 카탈로그 관리 기법의 연구의 필요성이 증가하게 된다. 본 논문에서는 중앙 집중식 카탈로그와 완전 중복식 카탈로그, 분할식 카탈로그를 분산 XML 데이터베이스 시스템에서 CPU 비용, I/O 비용, 동시성 제어, 이단계 완료 프로토콜, 큐잉 지연 등을 모두 고려한 모델을 설계하였고, 이를 시뮬레이터로 구현하여 각 카탈로그 관리 기법들의 성능을 합리적인 환경 설정을 통해 시뮬레이션함으로써 카탈로그 관리 기법들의 성능을 평가하였다.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2003.05a
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• pp.281-284
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• 2003

Development of internet had centered on that offer universality of expression. But, graphic processing of expression center has many inconveniences because of method that is not structural in World Wide Web. Announced SVG that is XML application to permit efficient expression and storage of vector graphic expression, share in W3C to supplement these things. Therefore, because using SVG document in this treatise, edit vector graphic through interface that could edit expressed graphic object directly structural edit and screen that is offered in graphic edit system form and designed SVG edit system to express. This system may use usefully to efficient XML graphics processing on the GIS system and Mobile service environment and so on.

• The Transactions of the Korea Information Processing Society
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• v.5 no.9
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• pp.2233-2247
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• 1998

With the growth of World Wide Web, multimedia electronic documents have been frequently used in a lot of applications. Especially, digital libraries tliat deal with huge and various multimedia electronic documents need to support efficient searcli techniques and systematical management techniques. In this paper, we suggest an extended Dublin Core metadata to store and search the multimedia electronic documents managed at digital libraries. We also design a document database schema based on the extended Dublin Core metadata and implement a svstem, called xD-MMS which manages the multimedia electronic documents.

• Journal of Korean Society for Quality Management
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• v.29 no.2
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• pp.54-75
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• 2001

The tremendous growth of the Internet, particularly World Wide Web, has resulted in significant changes in commerce environments. Internet has brought significant changes in the economics of marketing channels and has led to a redefinition of industry value chain. Electronic Commerce(EC) has become so important that countries and firms unprepared for this new trend would lose competitive advantages in the coming century of Digital Economy. Despite its importance, current EC markets in Korea are immature and there still exist several barriers to EC development thus excluding business to consumer EC markets. As interest in quality management and its effect on competitive performance has grown, there has been a corresponding proliferation of research. However, the majority of the research on quality management has not evolved in a comprehensive and rigorous fashion, particularly with regard to reliability and validity issues. The purpose of this paper investigates on Vitalization of the Activities of on-line shopping mall under of TQM system in Korea. That would make it possible to remove elements of insecurity and doubt currently felt by many users of on-line shopping mall(internet detail or cyber mall) business. In addition, we tried to find out what factors discourage consumers from using electronic purchasing methods, as well as how perceived quality factors and customer satisfaction when consumers are exposed to the purchase process on the on-line shopping mall business.

• Korean Management Science Review
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• v.27 no.3
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• pp.117-135
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• 2010

The purpose of this study is to segment the mobile phone users based on the flow types and to understand the differences in mobile phone usage behavior between the segmented groups. The 'flow' construct, which was introduced first in marketing by Hoffman and Novak[44], has been used as an important keyword for understanding consumer behavior on the World Wide Web. In this paper, we will try to use the flow aspect for the mobile market segmentation, which is one of the most fundamental tools for developing a successful marketing strategy on the mobile phone service market. We collected survey data from consumers and analyzed the data with the SPSS 12.0 package where we did ${\chi}^2$-test, factor analysis, one-way ANOVA and cluster analysis. Main results of this study are as follow. First, the flow types of the mobile phone users were classified into five types, which are named as the 'Flow' type, 'Apathy' type, 'Anxiety' type, 'Boredom' type, 'Control' type. Second, most of the results related to the usage of mobile phone service showed statistically significant differences between flow types. These findings suggest that the mobile phone service marketers should consider the various flow types of users and work out effective market segmentation strategies based on these consumer flow types.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.9 no.7
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• pp.1555-1560
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• 2005

The presentation of query results is usually made with an external tool or a report generator but, because the methods of preparing and storing presentations have not been standardized, there are many difficulties for other applications to use query results. Thus, it is necessary for a multimedia data query language to define presentation in a standardized method. In this paper we designed extented SQL is based on SMIL 2.0, which support the proposed presentation model effectively. Furthermore this study proposed methods of using query results in various multimedia applications.

• Proceedings of the ESK Conference
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• 1997.04a
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• pp.138-144
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• 1997

본 연구에서는 VRML(Virtual Reality Modeling Language)을 이용하여 월드 와이드 웹(World Wide Web; WWW) 상에서의 3차원 디렉토리 서비스인 "3D 한마당"을 구현하였다. 현재 WWW 상에서는 많은 2차원 디렉 토리 서비스가 존재하나 3차원검색 서비스에 비해 사용자를 위한 가상 현실감이 부족한 단점이 있다. 또한 3차원 검색 서비스는 그 잠재적 수요가 점차 증가함에도 불구하고 아직 적은 편이며, 또한 중오성이 차츰 커 지는 전자 상거래를 위해 특화된 디렉토리 서비스도 그 요구에 비해 많지 않다. 3차원으로 디렉토리 서비스의 기능을 수행할 수 있는 3D 한마당은 HTML(Hyper Text Markup Language)에 의해 기술되는 2차원 전자 거래용 디 렉토리 서비스인 "한마당"을 보조하기 위해 제작된 것으로, VRML 1.0 사양에 맞추어서 만들어졌다. 3D 한마당 을 위한 VRML 월드를 만들기 위해, Pentium PC에서 3-D MAX 소프트웨어로 각 구성 객체들을 저작한 후, 이를 조합하여 VRML 1.0 사양을 따라 월드로 변환하는 방법을 사용하였다. 이렇게 완성된 3D 한마당은 기존의 2차원 전자 거래용 디렉토리 서비스인 한마당에서 하이퍼링크로 바로 접근할 수 있으며, 또한 월드 안의 객체에서 그 객체에 대한 2차원 테이블로도 연결이 가능하게 하였다. 이러한 3차원 가상상점 디렉토리 서비스는 전자 거래에 특화된 특성 때문에 정해진 개수의 객체들만 요구되어 구현이 쉬운 이점이 있고, 보다 인간에게 자연스러운 인테 페이스로 정보 검색을 지원하게 해줄 수 있다.정보 검색을 지원하게 해줄 수 있다.