• The Journal of the Acoustical Society of Korea
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• v.15 no.3E
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• pp.60-65
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• 1996

This paper describes on the Korean continuous speech recognition system for flight reservation. It adopts a frame-synchronous One-Pass DP search algorithm driven by syntactic constraints of context free grammar(CFG). For recognition, 48 phoneme-like units(PLU) were defined and used as basic units for acoustic modeling of Korean. This modeling was conducted using a HMM technique, where each model has 4-states 3-continuous output probability distributions and 3-discrete-duration distributions. Language modeling by CFG was also applied to the task domain of flight reservation, which consisted of 346 words and 422 rewriting rules. In the tests, the sentence recognition rate of 62.6% was obtained after speaker adaptation.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.10 no.2
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• pp.173-178
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• 2010

Recently, Technical innovation has been implemented in a broad variety of industry fields to reach an ubiquitous society, with the object of popularizing u-Hospital, the mobile technology with no restriction to the place tends to be used positively in Health care fields. The existing mobile medical reservation system has the problem of not making good use of location information of users due to the interface based on text in the existing web pages. This paper proposes an mobile medical reservation system using geographic information service to solve the problems of current reservation system by using RIA(Rich Internet Application) technology applicable to Web 2.0 environment. Our proposed system also does the all required processes in a few page view, gets the differentiated service from the existing system by allowing efficient data exchange using XML, and expects the improvement of user friendliness by flexible user interface.

• Journal of Environmental Science International
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• v.13 no.2
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• pp.129-134
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• 2004

Understanding aspects of the use of Korean representative Soraksan National Park and investigating the factors affecting visitors' decision-making, this study aims to suggest a positive development plan for the rational use of the national park. The questionnaire is for those who have visited Soraksan National Park more than once. This research shows that most of the visitors wish ‘entrance congestion’ to be solved by introducing a ‘previous reservation’ system and a non-polluting shuttle bus; therefore there is a chance that they could be introduced for the settlement of the existing problems.

• Proceedings of the Korean Society of Computer Information Conference
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• 2020.07a
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• pp.271-272
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• 2020

오늘날 자동차 이용자가 점점 증가하고 있다. 이로 인해 주차 공간이 부족해져 많은 불편을 초래한다. 따라서 본 연구는 이러한 문제를 해결하기 위해 주차 예약 시스템을 구현하였다. 본 시스템은 Spring Framework 기반의 주차 예약 시스템으로 예약과 취소를 자유롭게 이용할 수 있다. 또한 주차 예약 시스템의 이용 후기, 꼭 알아야 하는 공지사항 등 게시판을 활용하여 더욱 자유롭게 이용할 수 있다.

• The Journal of the Korea institute of electronic communication sciences
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• v.11 no.11
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• pp.1061-1068
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• 2016

A theme park runs various programs to provide users entertainments. Among the programs of the theme park, amusement facilities are the most favorite ones used by the users. However, Since the waiting time of the amusement facilities becomes increasing due to the large number of the users, the satisfaction of the users is diminished heavily, To solve this problem, we propose a reservation system for amusement facility using near field communication. In the proposed system, a server appends the user to the waiting queue of the amusement facility when an user contacts the reader of an amusement facility using NFC, If an clock approaches to the time that the user will exploit the amusement facility, the server notifies to the user. The implemented reservation system has the benefit to provide the user chances to exploit other programs during the waiting time.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.40 no.6
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• pp.1048-1057
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• 2015

In this paper, we propose a fast MAS reallocation method that can avoid reservation conflicts in the DRP process of WiMedia system in real time. WiMedia MAC DRP has been developed aimed QoS support for audio and video transmission that generate traffic periodically. The size variation of the video streaming data causes DRP reservation conflicts frequently, so that DRP could not support QoS of the video streaming service which is delay-sensitive. Fast MAS reallocation method could avoid reservation conflicts in real-time analyzing reservation requests information of the other device. Our proposed method is evaluated with test sequences using the software simulation and implemented in hardware/software with the integrated WiMedia MAC/PHY system.

• Journal of Korea Society of Industrial Information Systems
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• v.23 no.6
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• pp.39-46
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• 2018

Low-floor buses service in Korea has been spreading nationwide for transportation users with wheelchair since 2004. However, there is a lot of difficulty in using this information because the low-floor bus information is insufficient. Therefore, it is necessary to improve the service of using low-floor buses for the transportation weak in order to increase the usage rate of low-floor buses for those who use wheelchairs. In this paper, we designed and implemented a low-floor bus reservation system to provide low-floor bus service and low-floor bus reservation service to improve low-floor bus service of wheelchair users. The application of this system is expected to provide a better service to the transportation weak people using low - floor buses.

• The Journal of Korean Institute of Electromagnetic Engineering and Science
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• v.17 no.10 s.113
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• pp.976-984
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• 2006

OFDM system is very useful for the high speed communication system. However, OFDM system has a serious problem of high PAPR that results from the so many subcarriers in the same phase. This OFDM signal is distorted through the nonlinear HPA(High Power Amplifier). Tone reservation method is to insert tone signal in several types to reduce the PAPR after iterating this process by changing the tone signal. Also discrete cosine transform(DCT) can reduces the PAPR as multiplying the cosine value to change the angle and mix up with the data. In the paper, the combination of the TR method and DCT method is newly proposed for more effective reduction of the PAPR. Simulation results show that the proposed method outperforms the conventional simple TR method and DCT method with respect to the PAPR reduction and BER performance.

• Journal of the Korea Computer Industry Society
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• v.5 no.2
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• pp.227-233
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• 2004

Complex scheduling problems are related to planning, scheduling, constraint satisfaction problems, object-oriented concepts, and agent systems. Human preference-driven scheduling technique was to solve complex scheduling problems using constraint satisfaction problems and object-oriented concepts. We have tried to apply human preference-driven scheduling technique to reservation problems. For customer's satisfaction, we have considered customer's preferences in the reservation scheduling. The technique of reservation scheduling proposed in this thesis is based on object-oriented concepts. 1'o consider the over all satisfaction, the events of every object are alloted to the board along its priority. Constraints to reservation scheduling are classified to global and local. The definition of board and information of every event are global constraints and the preferences to object's board slots are local constraints. We have applied look-ahead technology to reservation scheduling in order to minimize backtracking not to fail the allotment of events.

• Journal of Digital Convergence
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• v.10 no.8
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• pp.219-224
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• 2012

This paper aims to design and realize movie reservation system based EJB 3.0 enterprise for standardization. Non EJB and the EJB architecture to resolve the problem with benefits to support the new architecture is a lightweight container architecture. This architecture, such as the EJB, but not heavy, to provide all of the architecture is possible. The lightweight container architecture is most often used in business EJB 3.0 is well-known architecture. Therefore, this research has the Non EJB and the EJB to solve the advantages and disadvantages developed to support the latest EJB 3.0 architecture based on the design and implementation of a movie reservation system.