• Journal of information and communication convergence engineering
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• v.17 no.2
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• pp.142-148
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• 2019

Relatively few countries provide separate bicycle lanes for cyclists. Hence, tools for suggesting cycling routes are essential for a safe and pleasant cycling experience. This study aims to develop a mobile application to build cycling routes based on user preferences, specifically location, search radius, ride distance, and number of optimal routes. Our application calls the Strava API to retrieve Strava cycling segments crowdsourced from the cycling community. Then, it creates a graph consisting of the start and end points of these segments. Beginning from a user-specified location, the depth-first search algorithm (DFS) is applied to find routes that conform to the user's preferences. Next, a set of optimal routes is obtained by computing a trade-off ratio for every discovered route. This ratio is calculated from the lengths of all segments and the lengths of all connecting paths. The connected routes can be displayed on a map on an Android device or exported as a GPX file to a bike computer. Future work must be performed to improve the design of the user interface and user experience.

• Proceedings of the Korea Information Processing Society Conference
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• 2010.04a
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• pp.812-815
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• 2010

최근 들어 안드로이드폰, 아이폰, 옴니아폰 등의 스마트폰 사용자가 많이 증가하고 있고 전자상거래 등 그 이용분야 또한 점점 증가되고 있는 추세이다. 많은 사용자들이 스마트폰 환경에 접어들면서 삶의 질이 향상되어지고 있다. 하지만 이렇게 모바일 환경으로 변화되면서 여러 가지 많은 문제점도 발견되어지고 있는데 그중 대표적인 이슈로 논의되어지고 있는 문제 중 하나가 스마트폰에서의 보안취약성에 대한 내용인데 본 논문은 스마트폰 중 안드로이드 환경에서의 보안문제를 짚어보고 악성코드 같은 바이러스로부터 이를 보호하기위해서는 어떤 점이 필요한지 개선안을 제시하고 이를 해결하고자 한다.

• 제어로봇시스템학회:학술대회논문집
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• 2005.06a
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• pp.134-138
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• 2005

There are several application have been developed on internet-based speech recognition. Internet-based speech recognition is a distributed application and there were various techniques and methods have been using for that purposed. Currently, client-server paradigm was one of the popular technique that been using for client-server communication in web application. However, there is a new paradigm with the same purpose: mobile agent technology. Mobile agent technology has several advantages working on distributed internet-based system. This paper presents, applying mobile agent technology in internet-based speech recognition which based on client-server processing architecture.

• Proceedings of the Korean Society of Computer Information Conference
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• 2022.07a
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• pp.133-134
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• 2022

With the advent of PyScript, there are more and more topics in practice. However, the official guideline has not provided a detailed description. This paper investigates the practical application about PyScript. The research results show that the current functions in PyScript cannot be well handled in web pages, and even cannot use the advantage model of Python, which is not suitable for practical application in the short term. However, it may be widely used in web development in the future since writing functions through Wasm can improve the efficiency of program execution.

• International Journal of Computer Science & Network Security
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• v.23 no.12
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• pp.115-122
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• 2023

Makkah Al-Mukarramah is the capital of Islamic world. It receives special attention from the Saudi government's rulers to transform it into a smart city for the benefit of millions of pilgrims. One of the 2030 vision objectives is to transform specific cities to smart ones with advanced technological facilitation, Makkah is one of these cities. The history of Makkah is not well known for some Muslims. As a result, we built the concepts of our application "Ain Makkah" to enable visitors of Makkah to know the history of Makkah by using technology. In particular "Ain Makkah" uses Augmented Reality to view the history of Al-Kaaba. A 3D model will overlay Al-Kaaba to show it in the last years. Our project will use Augmented Reality to build a 3D model to overlay Al-Kaaba. Future work will expand the number of historical landmarks of Makkah.

• Convergence Security Journal
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• v.8 no.4
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• pp.191-197
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• 2008

A safe computer environment is necessarily required for computer users, because of a damage is widely increased by a malicious software such as the warm, virus and trojan horse. A general vaccine program can detect after the malicious software intruded. This kinds of the vaccine program show good result against a malicious code which is well known, however, there is no function in the vaccine or not enough ability to detect an application software which a malicious code included. So, this paper proposes an application verification system to decide existence and nonexistence of a malicious code in the application software. The proposed application verification system with a mechanism that grasps the flow type of malicious code, can make a reduction of a damage for computer users before the application software executed.

• 제어로봇시스템학회:학술대회논문집
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• 1988.10a
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• pp.590-591
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• 1988

In this paper computer control system is introduced for the reheating furnace in steel making process, and in order to support computer system and process operation, the configuration of expert system application is demonstrated breefly, which is under development.

• The Magazine of the IEIE
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• v.22 no.8
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• pp.86-97
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• 1995

Computer simulation is a powerful tool for the design and evaluation of manufacturing systems. This paper consists of two major parts. First, it presents a brief survey of simulation languages oriented towards the analysis of manufacturing systems, with their important properties. Second, it introduces a simple case of simulation application to a flexible manufacturing system(FMS).

• Journal of The Korean Association of Information Education
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• v.10 no.2
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• pp.229-239
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• 2006

The present study analyzed the effects of Problem-Based Learning (PBL), founded on the constructivist theory, on the problem solving process and computer application ability as to students' level in elementary computer education. According to the PBL model, developed on the basis of previous research and the purpose of the study, the area of 'application of software' in third-grade computer curriculum was redesigned for the three-week period of the experiment. The results of the analyses showed that problem-based learning tended to exert differential effects with regard to students' level on the problem-solving process and computer application ability in computer education. The implications of the study and suggestions for the future study were discussed.

• Proceedings of the Korea Contents Association Conference
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• 2009.05a
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• pp.191-196
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• 2009

Virtual reality has been new useful technology which have been brought our from the development of computer and computer based multimedia. Computer simulation application among the technologies of the virtual reality has spreaded into air service, motor vehicle, medical science, sports, education, even fashion industry. This study aims to look into application of computer simulation on hairdressing industry and researches 2-dimensional hairstyle computer simulation system which is started to common use nowadays and the 3-dimensional system which is under the development and furthermore investigates the usefulness of the 2D hairstyle simulation by questionnaire from its users. Statistical analysis show that 64.6% of examiners are satisfied at the results of 2D hairstyle simulation, 50.6% of them intend to recommend it to others and 63.3% of them intend to speak highly of it.