• Journal of The Korean Association of Information Education
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• v.14 no.4
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• pp.505-516
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• 2010

Recently, the Ministry of education science and technology announced a revised information and communication technology curriculum, emphasizing aspects of computer science education rather than application of computer softwares. This change would benefit students to stimulate their thinking ability and facilitate creativity learning through in-depth understanding of principles of computer science, compared to the previous curriculum of computer education mainly focused on the skills of utilizing application softwares. Thus, the paper presents the design of a computer education curriculum based on the principles of computer science education, which would lead to trigger constructive ideas for improvements on the subject so that students may experience better education in the area.

• Proceedings of the Korean Society of Computer Information Conference
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• 2020.01a
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• pp.261-262
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• 2020

세계적으로 관광시장 규모가 확대되면서 세계 경제에서 관광이 차지하는 위상 또한 높아지고 있다. 서울 관광 역시 단기간에 양적 성장을 이루었고, 외래 관광객 유치 규모 세계 7위이자 국제회의 개최 규모로는 3년 연속 세계 3위를 달성했다. 하지만 이러한 서울의 관광 산업 성장세에 비해 서울을 방문하는 외국인 관광객을 대상으로 한 모바일 애플리케이션은 한정적이며, 그마저도 사용률이 저조한 실정이다. 본 논문은 이러한 문제를 해소하기 위해 외국인을 대상으로 다양한 편의 기능을 포함한 모바일 애플리케이션을 개발하고 그 과정과 결과에 관해 서술하고 있다. 본 논문에서 서술하고 있는 모바일 애플리케이션에서는 카테고리별로 관광지, 식당, 숙박, 쇼핑 등의 정보를 제공하며 그 외에도 행사, 환율 정보와 번역, 지도, 길 찾기 기능을 제공하는 등 다양한 정보와 기능들을 하나의 애플리케이션에서 쾌적하게 이용할 수 있도록 통합 구현하였다.

• Proceedings of the Korean Society of Computer Information Conference
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• 2023.01a
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• pp.417-418
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• 2023

'오징어 게임', '기생충', K-POP 등의 K-콘텐츠를 중심으로 한류 문화가 세계적으로 전파되고 있으며 이에 따라 방한을 희망하는 외국인들도 증가하고 있다. 그리고 여행자들의 취향이 세분화되면서 개인 맞춤형 여행을 선호하는 방향으로 트렌드가 변화되고 있다. 그러나 외국인을 대상으로 하는 애플리케이션은 많지 않다. 본 연구는 이러한 문제점을 해소하고자 외국인 관광객을 대상으로 맞춤형 서비스를 제공하는 모바일 애플리케이션인 'DisKO'를 개발하였다. 본 앱에서는 여행 취향에 대한 선호도를 기반으로 카테고리별 맞춤형 관광 정보를 제공한다. 그 외에도 외국인 관광객에게 필수적인 번역, 환율, 시차, 지도 등의 편의 기능을 제공한다. 본 앱을 통해 외국인 관광객들은 맞춤형 정보와 반드시 필요한 편의 서비스를 'DisKO'에서 활용할 수 있다.

• The KIPS Transactions:PartC
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• v.9C no.3
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• pp.413-420
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• 2002

With the rapid development of computer networks, how to speed up network services and to guarantee QoS (Quality-of-Service) for users has drawn much attention from computer scientists. So has the need to manage network application services in order to manage network resources more effectively and meet the users' demands. In this paper, we present methodology of determining the traffic of application services on the network, so as to manage network resources effectively and thus to make application services more user-oriented. On the basis of this methodology and by using RMON MIB we develop analysis parameters and their algorithm to manage the traffic of application services on the network, thus realizing Web-based Application Management System which allows network managers to extract and analyze the Internet application service traffic beyond the limitation of time and space.

• Journal of the Korea Society of Computer and Information
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• v.17 no.6
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• pp.153-161
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• 2012

In this empirical study at the Web environment based on the frequency distribution of the cyclomatic complexity number of the application, the relevance of the threshold has been analyzed with the next two assumptions. The upper bound established by McCabe in the procedural programming equals 10 and the upper bound established by Lopez in the Java programming equals 5. Which numerical value can be adapted to Web application contexts? In order to answer this 10 web site projects have been collected and a sample of more than 4,000 ASP files has been measured. After analyzing the frequency distribution of the cyclomatic complexity of the Web application, experiment result is that more than 90% of Web application have a complexity less than 50 and also 50 is proposed as threshold of Web application. Web application has the complex architecture with Server, Client and HTML, and the HTML side has the high complexity 35~40. The reason of high complexity is that HTML program is usually made of menu type for home page or site map, and the relevance of that has been explained. In the near future we need to find out if there exist some hidden properties of the Web application architecture related to complexity.

• Proceedings of the IEEK Conference
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• 2004.06a
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• pp.87-90
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• 2004

This paper proposes 4-STTD(4${\times}$l) technique for the shake of application of W-CDMA which expand Alamouti STTD(2${\times}$l) technique. As the result of analyzing 4-STTD(4${\times}$l) technique proposed in this paper, we can see improvement of quality by approximately 2.2 dB rather than Alamouti STTD(2${\times}$l) technique

• Proceedings of the Korea Multimedia Society Conference
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• 2001.06a
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• pp.373-377
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• 2001

The telemedicine & distance education system that this paper suggests has been designed on the CTE(Collaborative Telemedicine & distance Education) framework, which is an integrated multimedia environment. This is a CBM-based collaborative telemedicine & distance education type, different from the conventional doctor based general practice, and is an integrated multimedia telemedicine & distance education system capable of many application developments using information super highway. This paper presents the content regarding electronic medical examination chart and data treatment for efficient medical examination and prompt treatment by realizing mutual conversation type remote medical examination system among 3 parties(patient, doctor, pharmacist) on internet base. And, The implementation of this new teaming system should be designed with multimedia application development platform base which is interfaced with computer engineering, computer network technology, CSCW (Computer-Supported Cooperative Work) technology, and education engineering.

• Proceedings of the Korean Society of Computer Information Conference
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• 2015.01a
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• pp.335-336
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• 2015

RFID의 기초적인 기술을 응용하여 물류센터의 창고에 저장되어 있는 물품에 대한 실시간 위치와 제품의 정보를 현장과 사무실에 통합적으로 제공함으로써 현장의 불필요한 업무의 개선과 사무실과 현장 간의 물품정보의 차이를 최소화함으로서 폐기되는 재고의 최소화 및 실재고와 현장재고의 차이를 혁신적으로 줄이는 목적으로 RFID를 이용한 물류센터 관리 어플리케이션을 설계하고 구현하였다.

• Journal of the Korea Society of Computer and Information
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• v.22 no.8
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• pp.9-14
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• 2017

In this paper, we propose the smart belt system for preventing loss of items using Beacon. The proposed system monitors the distances of the registered items via the belt that is always worn. The belt determines the loss of the items by measuring the relative distance via RSSI (Received Signal Strength Indicator) value of the signals received from the BLE (Bluetoothl Low Energy) sensor, which is attached on the items such as bags and wallets. If the registered item is determined to be lost, the belt rings to remind the user of the loss. The missing status could be known to users through the smartphone application connected to the belt. The smartphone application communicates with the belt using Beacon, and provides users with a quick and easy way to check the status of their items.

• Journal of the Korea Society of Computer and Information
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• v.22 no.8
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• pp.33-39
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• 2017

In this paper, we propose a method which implements warning to drivers through real-time analysis of risky and unexpected driver and vehicle behavior using only a smartphone without using data from digital tachograph and vehicle internal sensors. We performed the evaluation of our system that demonstrates the effectiveness and usefulness of our method for risky and unexpected driver and vehicle behavior using three information such as vehicle speed, azimuth and GPS data which are acquired from a smartphone sensors. We confirmed the results and developed the smartphone application for validate and conducted simulation using actual driving data. This novel functionality of the smartphone application enhances drivers' situational awareness, increasing safety and effectiveness of driving.