• Journal of Intelligence and Information Systems
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• v.16 no.4
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• pp.113-130
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• 2010

During the decades, considerable human interventions to comprehend the web information were increased continually. The successful expansion of the web services made it more complex and required more contributions of the users. Many researchers have tried to improve the comprehension ability of computers in supporting an intelligent web service. One reasonable approach is enriching the information with machine understandable semantics. They applied ontology design, intelligent reasoning and other logical representation schemes to design an infrastructure of the semantic web. For the features, the semantic web is considered as an intelligent access to understanding, transforming, storing, retrieving, and processing the information gathered from heterogeneous, distributed web resources. The goal of this study is firstly to explore the problems that restrict the applications of web services and the basic concepts, languages, and tools of the semantic web. Then we highlight some of the researches, solutions, and projects that have attempted to combine the semantic web and business support, and find out the pros and cons of the approaches. Through the study, we were able to know that the semantic web technology is trying to offer a new and higher level of web service to the online users. The services are overcoming the limitations of traditional web technologies/services. In traditional web services, too much human interventions were needed to seek and interpret the information. The semantic web service, however, is based on machine-understandable semantics and knowledge representation. Therefore, most of information processing activities will be executed by computers. The main elements required to develop a semantic web-based business support are business logics, ontologies, ontology languages, intelligent agents, applications, and etc. In using/managing the infrastructure of the semantic web services, software developers, service consumers, and service providers are the main representatives. Some researchers integrated those technologies, languages, tools, mechanisms, and applications into a semantic web services framework. Therefore, future directions of the semantic web-based business support should be start over from the infrastructure.

• Proceedings of the Korean Society for Quality Management Conference
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• 2007.04a
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• pp.267-272
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• 2007

A business is an organized. profit-seeking activity that provides goods and service designed to satisfy customer' needs. For years, Internet users have been dream of intelligent software agents that automatically prowl the online world and bring back high-quality information. In the era of web2.0, Internet users can communicate each other on open platforms(e-mail, Naver Knowledge-In. Cyworld, Wikipedia, and blog etc.). The author investigate the impact of web2.0 user's perceived value. affective commitment. brand equity on loyalty intention. The results suggest that excellent service quality will be alternative solving in web2.0 business environment.

• Korean Journal of Computational Design and Engineering
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• v.10 no.6
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• pp.402-411
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• 2005

Context-aware engineering services in ubiquitous environments are emerging as a viable alternative to traditional engineering services. Most of the previous approaches are computer-centered rather than human-centered. In this paper, we present a Ubiquitous and Context-Aware computing Framework for collaborative virtual Engineering $(U-CAF\acute{E})$ services. The proposed approach utilizes BPEL-based (Business Process Execution Language) process templates for engineering service orchestration and choreography and adopts semantic web-based context-awareness for providing human-centered engineering services. The paper discusses how to utilize engineering contexts and share this knowledge in support of collaborative virtual engineering services and service interfaces. The paper also discusses how Web services and JINI (Java Intelligent Network Infrastructure) services are utilized to support engineering service federations and seamless Interactions among persons, devices, and various kinds of engineering services.

• Proceedings of the Korea Inteligent Information System Society Conference
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• 2005.11a
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• pp.369-378
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• 2005

본 논문에서는 유비쿼터스 환경에서 유동 소비자가 서비스의 유동성을 보장받을 수 있는 지능형 여행정보서비스를 제안하고자 한다. 본 시스템은 유비쿼터스 환경에서 여행자가 필요로 하는 정보획득을 돕기 위해 다양한 상품제안, 그 상품들 간의 연계를 통한 맞춤제안을 목적으로 설계되었다 여행정보시스템에 연관된 상품들은 호텔, 비행사, 자동차, 여행지 정보, 음식점 및 Business Trip 등이다. 따라서 여행자의 요구 및 상황의 변화에 맞게 연관상품의 Schedule 맞춤을 위한 지능형 여행 최적정보시스템의 연구가 요구된다. 이를 위해 본 연구에서는 Traveling Service 지원을 위해 첫째 여행자의 요구에 따른 단일상품의 복합상품화(Product bundling)를 위한 방법론을 제안하였다. 둘째, 복합상품을 구성하기 위해 필수적인, 개별정보시스템에 이질적인 형태로 저장되어있는 단일상품에 대한 정보를 공유하기 위해, 여행상품과 온톨로지의 구축이 요구된다. 이에 본 논문에서는 OWL 기반의 온톨로지를 구축하였다. 온톨로지 기반의 여행정보시스템은 향후 시맨틱 웹서비 기반의 지능형 여행정보시스템 구축을 위한 초석으로 활요될 것이다.

• The Journal of Korea Robotics Society
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• v.2 no.4
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• pp.334-340
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• 2007

This paper introduces a prototype smart home environment that is built in the research building to demonstrate the feasibility of a robot-assisted future home environment. Localization, navigation, object recognition and handling are core functionalities that an intelligent service robot should provide. A huge amount of research effort has been made to make the service robot perform these functions with its own sensors, actuators and a knowledge base. With all complicated configuration of sensors, actuators and a database, the robot could only perform the given tasks in a predefined environment or show the limited capabilities in a natural environment. We started a smart home environment for service robots for simple service robots to provide reliable services by communicating with the environment through the wireless sensor networks. In this paper, we introduce various types of smart devices that are developed for assisting the robot in the environment by providing sensor and actuator capabilities. In addition, we present how the devices are integrated to constitute the smart home environment for service robots.

• Proceedings of the Korean Institute of Intelligent Systems Conference
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• 2003.09a
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• pp.664-667
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• 2003

We propose a frizzy traffic controller of Sugeno's fuzzy model so as to model the nonlinear characteristics of controlling the traffic light. It uses a degree of the traffic congestion of the preceding roads as an input so that it can cope with traffic congestion appropriately, which causes the loss of fuel and our discomfort. In order to construct fuzzy traffic controller of Sugeno's fuzzy model we first model the control process of the traffic light by using Mamdani's fuzzy model, which has the uniform membership functions of the same size and shape. Next we make Mamdani's fuzzy model with the non-uniform membership functions so that it can exactly reflect the knowledge of experts and operators. Lastly, we construct the fuzzy traffic controller of Sugeno's fuzzy model by learning from the input/output data, which is retrieved from Mamdani's fuzzy model with the non-uniform membership functions. We compared and analyzed the service level of the traffic light controllers by using the delay time. As a result of comparison, the fuzzy traffic controller of Sugeno's fuzzy model shows the best service level of them.

• Proceedings of the Korea Inteligent Information System Society Conference
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• 2005.05a
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• pp.266-273
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• 2005

Data mining techniques enable us to generate useful information for decision support from the data sources which are generated and accumulated in the process of routine organizational management activities. College administration system is a typical example that produces a warehouse of student records as each and every student enters a college and undertakes the curricular and extracurricular activities. So far, these data have been utilized to a very limited student service purposes, such as issuance of transcripts, graduation evaluation, GPA calculation, etc. In this paper, we utilize Holland career search test results, TOEIC score, course work list, and GPA score as the input for data mining and generation the student advisory information. Factor analysis, AHP(Analytic Hierarchy Process), artificial neural net, and CART(Classification And Regression Tree) techniques are deployed in the data mining process. Since these data mining techniques are very powerful in processing and discovering useful knowledge and information from large scale student databases, we can expect a highly sophisticated student advisory knowledge and services which may not be obtained with the human student advice experts.

• Journal of Intelligence and Information Systems
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• v.4 no.1
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• pp.115-131
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• 1998

Customer service process is one of the most important processes in today's competitive business environment. Among the various activities of customer service process, equipment malfunction diagnosis activity should be performed fast and accurately. When a customer calls the service center and reports the observed symptoms, he/she describes them in layman's terms. Therefore, the customer-reported symptoms have not been considered helpful information for service representatives. However, in order to perform diagnosis activity fast and accurately, we need to make use of the customer-reported symptoms actively. In this research, we developed three systems called R-EMD (Rule-based Equipment Malfunction Diagnostic system), C-EMD (Case-based Equipment Malfunction Diagnostic system) and R&C-EMD (Rule & Case-based Equipment Malfunction Diagnostic system), each of which diagnoses equipment malfunctions using the customer-reported symptoms. R&C-EMD is a hybrid system that utilizes both rule-based and case-based technologies. The diagnosis rules used in R&C-EMD and R-EMD were not acquired from service manuals or interviews with service representatives. Rater, we extracted them directly from the past diagnosis cases based on symptoms' frequencies. By this way, we were able to overcome the knowledge acquisition bottleneck. Using the real 100 malfunction diagnosis cases, we evaluated the performances of R&C-EMC, R-EMD and C-EMD in terms of speed and accuracy. In diagnosis time, R&C-EMD took longer than R-EMD and shorter than C-EMD. However, R&C-EMC was the best in accuracy.

• Journal of Engineering Education Research
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• v.14 no.3
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• pp.31-37
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• 2011

This article presents program development and analysis of a creative robot school for elementary school at the local university. The purpose of opening the creative robot school is to give motivation to children for having interests in science and engineering at their young ages. The creative robot school program is developed by using facilities of a local university to spread scientific knowledge to young children in their communities to draw their interests in science as well as an engineering field for future careers. Since the robot system is a popular subject to draw attention of children and has a relation with Mechatronics Engineering, a program related with robots is selected for educating children. College students are also involved in helping children to build robots within a given time. Experiences and self-evaluations from the previously held creative robot schools at Chungnam National University(CNU) are presented to share with.

• Proceedings of the Korea Inteligent Information System Society Conference
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• 1999.10a
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• pp.205-212
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• 1999

It is certain that EC(Electronic Commerce) applying the internet will be activated in the knowledge society of 21 century based on IT(Information Technology). Though this change of social environment helps the useful information resource available to expand, it looks like that the rapid inclease in lots of information to gather makes colleges, reseach laboratories and public institutions to spend more man power and money on work of book purchases than before and now. Therefore the most urgent part for the business process reengineering in work of information service center is the business of book purchases. The business of book purchases is the core part in organizations and facilities. It should construct the books which the organigation and facility need in the most economical and efficient way within the range of physically receptive capacity with the limited budget. These organigations and facilities have to establish the policy of the book stock which they should possess and also librarians should endeavour to configure the kernel book stock constantly. I assert that they need to ensure a specialty with the improvement of business process accompanying choosing and purchasing the books. Especially, in a case of purchasing foreign books by request of members like professors, students, researcher and so on they have to replace the business of book purchase using agency with direct dealing using EC. This Business Process Reengineering will cut down on expenses, offer the transparency of book purchases and also give the users confidence. Moreover the Business Process Reengineering make it possible to build well constructed main books and information resource. The people in charge are enabled to acquire the knowledge of subjects with contiuous search for books of a spcial area and self-study. These experts in work will raise the quality of information service. Information service center will be the core in the 21c knowledge industry. To streng then value of it, efficiently run it and control it the existing business of book purchasing should be replace with direct dealing using EC applying the internet.