• Journal of the Korean Institute of Intelligent Systems
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• v.15 no.6
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• pp.655-660
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• 2005

This paper studied the feature parameters less affected by the emotional variation for the development of the robust speech recognition technologies. For this purpose, the effect of emotional variation on the speech recognition system and robust feature parameters of speech recognition system were studied using speech database containing various emotions. In this study, LPC cepstral coefficient, met-cepstral coefficient, root-cepstral coefficient, PLP coefficient, RASTA met-cepstral coefficient were used as a feature parameters. And CMS and SBR method were used as a signal bias removal techniques. Experimental results showed that the HMM based speaker independent word recognizer using RASTA met-cepstral coefficient :md its derivatives and CMS as a signal bias removal showed the best performance of $7.05\%$ word error rate. This corresponds to about a $52\%$ word error reduction as compare to the performance of baseline system using met - cepstral coefficient.

• Proceedings of the Korea Contents Association Conference
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• 2008.05a
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• pp.465-468
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• 2008

Recently, VOD market is getting increased and most of public, educational organization, enterprises are providing service as content managing system of WMV standard subordinated to Window OS of Microsoft company. VOD CMS of WMV standard have problem that frequent cut-off, small-size of screen, and image quality which is also chronic problem. In order to solve this problem, technology solving the problem has developed through minimization of buffering time, screen size, high quality sound, and high quality image by image codec and streaming engine which is H. 264. But there are still a problem that systematic management of contents or distribution is difficult. This study expected that there would be a effect preoccupying significant stand of world wide H.264 high quality image mobile VOD managing market by securing domestic on-line VOD contents integrated managing technology by designing system for image VOD contents management having a limit in wmv market and combining H.264 which is new technology.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.26 no.7
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• pp.1004-1012
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• 2022

This paper contains the implementation of a game as a feature of a package tour management application with the Digital Game-based Learning approach that helps tourists learn about tourism spots. The game is written in Java language for an Android smartphone that is designed to be integrated with Content Management System (CMS) to manage the game's contents and assets. The game contains one tourism spots introductory level and five quiz game levels with each having a reward (points) and punishment (time penalty) system, then summed the results to obtain the total score from all levels. The total score will determine a tourist's performance and be listed on an online leaderboard to increase competitiveness among tourists. The conducted performance evaluation of the game shows satisfactory results of 0.9 seconds of response time from the database to the game. Implementing the game presented in this paper will potentially reduce the burden of the tour guide and increase the efficiency of managing the tour group.

• Proceedings of the Korean Information Science Society Conference
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• 1999.10b
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• pp.395-397
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• 1999

디지털 카메라에 의해 획득된 RGB 칼라 신호는 디지털 카메라의 하드웨어적인 특성에 따라 서로 다른 값을 가지는 장비 의존적(Device Dependent) 특성을 가지며, 칼라 운영 시스템(CMS; Color Management System)이 프로파일 연결 칼라 공간(PCS:Profile Connection Space)으로 사용하는 CIE XYZ 칼라 공간에 대해 비선형적인 특성을 가진다. 본 논문에서는 디지털 카메라의 RGB 칼라 신호를 장비 독립적(Device Independent)인 CIE XYZ 칼라 공간으로 변환하는 변환 행렬을 구하는 방법을 제안한다. 변환 행렬은 비선형 다항식을 이용하여 3$\times$m의 변환 행렬을 구하고, 실험에 사용되는 칼라 샘플의 수에 따른 일반화(Generalization) 성능을 평가한다.

• Proceedings of the KSR Conference
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• 2011.05a
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• pp.1049-1058
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• 2011

Current status of the low-to-medium speed Urban MagLev Systems were studied, for Korean UTM(Urban Transit Maglev), Japanese HSST(High Speed Surface Transport) and Chinese CMS(Chinese Maglev System). Mainly, process of development, testing facilities, specifications of maglev systems and public service program were compared respectively.

• Journal of Korean Society of Industrial and Systems Engineering
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• v.23 no.61
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• pp.23-31
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• 2000

This paper addresses the static operator allocation problem in celluar manufacturing systems(CMS). An assembly environment is considered where each component going into the final product is manufactured in an individual cell. There are m such cells and it is required to manufacture n varieties of products where n>m. An mathematical model and two heuristic algorithms for static operators allocation to the cells to balance workload for minimizing makespan are developed and tested.

• Proceedings of the Korean Society of Broadcast Engineers Conference
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• 2018.06a
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• pp.77-78
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• 2018

TV홈쇼핑 프로그램 구성 요소 중 하나인 Call to action(자료화면 구간)에서 콘텐츠관리시스템 CMS(Contents Management System)가 도입되며 기존 생방송에 활용하던 서버를 외에 Taker라는 장비가 추가되어 방송에 활용된다. Call to action은 방송 전 제작된 자료 외에 생방송 중 녹화 된 자료들이 같이 복합적이며 연속적으로 재생되는데 이 시점에 문제점이 발생했다. 본 논문에서는 홈쇼핑 생방송에서의 Taker장비의 활용 필요성과 문제점 및 개선점을 제시 하고자 한다.

• Journal of Positioning, Navigation, and Timing
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• v.10 no.2
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• pp.145-151
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• 2021

According to the Korea Augmentation Satellite System (KASS) system milestone, Site Acceptance Test (SAT) has three steps test until the end of the project. SAT#1 is the first time of SAT steps and verify the KASS Reference Station (KRS) and Sub System (S/S) for the monitoring and controllable. After the equipment and software were installed at the Mission Control Center (MCC) with Central Monitoring and Control Simulator (CMS) for the SAT#1, the 1:1 test was progressed when the KRS and S/S are ready to test. SAT#1 has a 10 steps test case and it was progressed each KRS sites. The test was finished throughout the real-time monitoring and the data collection including the data analysis all of the 7 KRS sites. Finally SAT#1 was completed on December 2020 with successfully.

• Proceedings of the KSME Conference
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• 2003.04a
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• pp.874-880
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• 2003

Many mechanical systems are over-constrained if only rigid bodies are used to model the system. One example of such system is a satellite system with solar panels. To avoid this over-constrained problem, solar panels can be modeled as flexible bodies. The CMS(Component Mode Synthesis) method is widely used to analyze the flexible multi-body system because it can considerably approximate the deformation of the flexible bodies using small number of well-selected mode. However, it is very difficult to decide the boundary condition and the selection of modes. In this paper, the methods for mode synthesis and setting the boundary condition are presented to analyze the flexible multi-body system with over-constraints. Finally, the reliability of proposed method is verified by solar panel's deployment test.

• Proceedings of the Korea Information Processing Society Conference
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• 2004.05a
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• pp.109-112
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• 2004

콘텐츠 관리 시스템(CMS:Contents Management System)은 '자료 수집, 등록, 검색, 배포'의 기본 흐름을 가진다. 콘텐츠의 등록 및 검색/배포를 위하여 각 시스템은 콘텐츠에 대한 별도의 메타 파일들을 가지고 있으나, 이러한 메타파일들은 데이터 요소의 중의성이나 모호함 때문에 일관되고 객관화 된 스키마를 가지지 못하여 체계적 분류 및 최신 업데이트를 위한 메타데이터 자체의 효율적 관리 및 연관 검색 기능을 가지고 있지 않았다. 본 논문에서는 기존 연구되고 있는 MDR과 토픽맵을 자체 개발 중인 콘텐츠 메타파일 관리 시스템(CMMS:Contents Metafile Management System)에 적용하여 메타파일의 체계적이고 효율적인 관리를 통해 기준요소로서의 메타파일 역할을 극대화하고 향후 타 체계와의 연동 및 확장성의 향상을 도모한다.