• Proceedings of the Korea Information Processing Society Conference
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• 2008.11a
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• pp.241-244
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• 2008

내비게이션 시장의 확대에 따라 주요 서비스인 길안내 외에 다양한 콘텐츠 제공 기술개발로 경쟁력을 갖춰 나갈 필요성이 대두되었다. 이러한 흐름에 발맞추어 운전자의 특성, 관심사를 고려, 운전자가 선호할 만한 서비스 정보를 제공하여 내비게이션의 경쟁력을 갖출 수 있는 방법을 제안한다. 본 논문에서는 데이터 마이닝, 필터링과 추천방법을 통하여 기존의 내비게이션이 경로를 탐색할 때 운전자의 기호와는 상관없는 정보를 제공한 것과 다르게 운전자가 선호할 만한 서비스 정보를 효율적으로 도출하는 방법을 제안 한다. 또한 내비게이션이 제공하는 불필요한 정보를 제함으로써 빠르고 효율적인 데이터관리를 할 수 있도록 한다.

• Asia-Pacific Journal of Business Venturing and Entrepreneurship
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• v.14 no.3
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• pp.129-140
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• 2019

The purpose of our study is to confirm the usefulness of our new youth entrepreneurship program. In this study, I suggest design thinking as a new Youth entrepreneurship program which is consist of 9 dimensions: opportunity discovery, opportunity utilization, creativity capacity, career preparation behavior, entrepreneurship, entrepreneurial intention, self-preservation, social problem solving, and educational program objectives. To verify this new program, I conduct a pilot test in middle school and high school; the sample target is randomly selected one class in each school. My main finding is two. First, our new program successfully improves Youth entrepreneurship. Particularly, the improvement of opportunity utilization and entrepreneurial intention are prominent. As reasons, studies about food industry entrepreneurship is an unfamiliar subject for adolescent. Considering that entrepreneurial intention rapidly changes after the experience of entrepreneurial education, researchers need to focus on this variable. Second, I confirm the effects of gender, motivation, prior experience, interest oneself and other's recommendation about the entrepreneurship program. As a result, gender and prior experience do not have an important influence. On the other hand, voluntary interest and other's recommendation are influential. The most important factor is the influence of a teacher. Therefore, researchers need to examine the more specific mechanism of each dimension in the future.

• Journal of the Korea Society of Computer and Information
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• v.17 no.8
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• pp.41-50
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• 2012

Most of the developed countries and Korea have continued to invest much money in developing low-carbon vehicles such as electric car, methanol car and hydrogen car to replace the conventional fossil fuel vehicles. Government and local governments of each country, however, grope to construct roads for bicycle and public bicycle rental systems because bicycle is the only ultimate and feasible non-pollution transportation. Most of the current bicycle monitoring systems have achieved automation of rental process in bicycle stations, but they can not monitor bicycles in use. This paper develops GPS-CDMA modem combined terminals and implements a LBS-based bicycle monitoring system using them for public bicycle rental system. The monitoring system collects location information from GPS-CDMA modem combined terminals attached on bicycles and presents the moving tracks of bicycles on a GIS map for easy return and redistribution of bicycles. Also, the system helps to prevent from theft and vandalism of bicycles and to recommend the nearest bicycle station.

• Proceedings of the Korea Contents Association Conference
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• 2009.05a
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• pp.378-382
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• 2009

The purpose of this study is to design and develop competency based career development system for mid size IT company employees to support HRD(Human Resource Development) & HRM (Human Resource Menagement). Although many researches have been done in terms of employees career and competency development in corporate environment, there are not many cases to analyze mid size companies because small companies have limited number of employees and budget to develop career development system. This study analyzed 55 subjects to analyze their current competency level and job description in two mid size IT companies to design and develop competency based career development system. Three career paths such as R&D, management, and marketing, were common in IT companies and each suitable career development plan was recommended. The results of this study are able to provide self diagnostic competency based career development system for mid size company employees to improve their job performance and administration efficiency as a consequence.

• Journal of KIISE:Software and Applications
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• v.32 no.5
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• pp.416-427
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• 2005

Web navigation mining is a method of discovering Web navigation patterns by analyzing the Web access log data. However, it is admitted that the log data contains noisy information that leads to the incorrect recognition of user navigation path on the Web's hyperlink structure. As a result, previous Web navigation mining systems that exploited solely the log data have not shown good performance in discovering correct Web navigation patterns efficiently, mainly due to the complex pre-processing procedure. To resolve this problem, this paper proposes a technique of amalgamating the Web's hyperlink structure information with the Web access log data to discover navigation patterns correctly and efficiently. Our implemented Web navigation mining system called SPMiner produces a WebTree from the hyperlink structure of a Web site that is used trl eliminate the possible noises in the Web log data caused by the user's abnormal navigational activities. SPMiner remarkably reduces the pre-processing overhead by using the structure of the Web, and as a result, it could analyze the user's search patterns efficiently.

• Journal of Oral Medicine and Pain
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• v.37 no.2
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• pp.75-79
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• 2012

Helicobacter pylori(H. pylori) associated with gastritis and gastric cancer is mainly detected dental plaque and saliva in the oral cavity. Most infection is probably acquired in childhood, but the route of transmission is not clear. The oral cavity has been indicated as secondary reservoir of H. pylori, and may therefore be argued in the route of transmission and reinfection of the stomach which follows treatment of H. pylori infection. So this review aimed to discuss about H. pylori in the oral cavity. H. pylori in stomach can appear in the oral cavity by gastroesophageal reflex or vomiting, but infection of stomach and oral cavity is different. Diagnostic methods are serological method, urea breath test, PCR method, urease test, histologic method and so on. Nested PCR recommend for detection of H. pylori in saliva and dental plaque. H. pylori infection in the oral cavity appear variously and is no relation with dental diseases. The antimicrobial mouthrinse recommend in patients with periodontal diseases because of high detection rate fo H. pylori. Thus H. pylori may be considered as the normal oral microflora.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2010.05a
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• pp.471-472
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• 2010

As IT has developed, it provides the convenient facilities in human's life. However, previous parking information systems serve only few things. such as to automatically issue a parking tag, and to show the number of available parking spaces. In this paper, we propose a parking information system providing the shortest way to go to the recommended parking space as well as the abilities served by the previous systems. By utilizing this shortest way information, a driver does not need to hang around a parking lot in order to look for the parking space. Because a parking lot manager can understand the parking lot state by using this system, he is able to deal with any trouble quickly. Therefore, the proposed parking information system reduces both the parking management cost and the number of staffs for the parking lot.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2019.05a
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• pp.510-512
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• 2019

Recently, there have been growing requirements in the public safety sector to ensure safety through detection of hazardous situations or preemptive predictions. It is noteworthy that various sensor data can be analyzed and utilized as a result of mobile device's dissemination, and many advantages can be used in terms of safety and security. An effective modeling technique is needed to combine sensor data generated by smart-phones and wearable devices to analyze users' moving patterns and behavioral patterns, and to ensure public safety by fusing location-based crime risk data provided.

• Journal of the Korea Society of Computer and Information
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• v.28 no.11
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• pp.147-154
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• 2023

In this paper, we propose a barrier-free course route navigation service named "Theme Road" aimed at improving the mobility and convenience for elderly electric wheelchair users with walking disabilities. To achieve this goal, we conducted a user survey through shadowing and in-depth interviews to gather insights on the challenges experienced by elderly electric wheelchair users. We identified potential solutions for each inconvenience through co-creation workshops, resulting in a set of design considerations and app functionalities. Using persona development and service scenarios, we designed and implemented the "Theme Road" service as a dedicated navigation application for barrier-free course navigation. Unlike conventional route navigation and mapping services, our study stands out by offering a unique approach that combines recommended destinations and safe routes based on experiential analysis from elderly electric wheelchair users.

• Proceedings of the Korean Society of Broadcast Engineers Conference
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• 2011.07a
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• pp.254-257
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• 2011

본 논문에서는 내용 기반 음악의 감성추출 연구의 동향을 살펴보고, 평가치를 기반으로 청중의 기호를 분석해 본다. 청중의 기호 분석은 가능한 많은 사람이 공감 할 수 있는 데이터를 사용하고자, 최근 이슈가 되고 있는 "나는 가수다" 방송 프로그램의 음원 분석을 통해 이루어졌다. 데이터베이스는 총 7 번의 공연/경연마다 7 곡씩 순위가 매겨지므로 총 49 곡으로 이루어진다. 청중 평가단은 총 500 명의 엄격히 선발된 10 대에서 50 대, 각각 100 명 씩으로 구성되었다. 특징값은 오픈소스인 MIRtoolbox 를 이용해서, 총 376 개의 특징값을 추출하여 평가치와의 상관관계를 구해 청중 평가단의 기호를 분석한다. 실험결과 총 376 개의 특징값 중 10 개의 특징값이 청중평가단의 기호와 상관관계가 있다는 것이 나타났다. 마지막으로 내용 기반 음악의 감성 추출 연구에서 보이는 감성의 주관적 인식성 및 심리학적 설명의 난해함을 줄이고자, 향후 과제로 내용 기반 및 평가치 기반의 시스템을 결합한 감성 기반 음악 추천 시스템을 제안한다.