• The Journal of Korean Institute of Communications and Information Sciences
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• v.37 no.6C
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• pp.497-501
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• 2012

While increasing online services with developing e-businesses, finance, game companies and others have employed OTP(One-Time Password) to overcome vulnerabilities of static passwords. Existing OTP technology has inconvenience that customers always possess reserved token since requiring the token to generate OTP. In order to supplement the issue we propose mobile OTP generated by mobile devices such as smart phones. Our mobile OTP scheme generates OTP by using a non-linear function based on pairing to eject the collision problem of S/Key scheme universally used to design OTP schemes. Our scheme based on a non-linear function over pairing can complements the collision problem and widely applied to finance and various services to increase security level of the services.

• Proceedings of the Korean Society of Computer Information Conference
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• 2014.07a
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• pp.49-50
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• 2014

본 논문에서는 Windows Phone 기반의 모바일 게임 Bumple을 설계하고 구현한다. 이 게임은 XNA Framework를 사용하여 개발하기 때문에 상속받은 코드들을 자동으로 생성하고, 게임 개발 관련 콘텐트 리소스의 등록 및 게임 로직을 메소드로 구현한다. 이 게임의 특징은 슈팅(shooting), 이미지(image), 스토리(story) 등의 3개 요소를 고려하여 행성들의 다양한 특징을 살려 스토리를 구성한다. 또한 Planimal이라는 가상캐릭터를 도입하여 행성에 나타난 탐사로봇과 대적하여 스테이지를 클리어 한다.

• Journal of Korean Society of Industrial and Systems Engineering
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• v.38 no.2
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• pp.8-16
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• 2015

How to measure and evaluate the performance of managing a store? Although it is important for a retailer to execute good management in a store, there are few efficient measurement tools and methods for In-store management. Also few people are trying to deal with variety of goods (number of categories), depth of a catagory (number of stock-keeping units within a category), and stock level (the number of individual items of a particular SKU) in a store. To solve the problem, this paper suggests the Customer-Retailer Collaboration (CRC) model that utilizes Gamification. By embedding gaming elements, the store management activities can be viewed as more game-like processes. Customers find some problems they encountered in the store and send the related signals via mobile APP, and the relevant store personnel copes with the signals. As the return for their collaboration, they both will obtain points and badge. This paper designs the CRC model and shows the flow of the model briefly.

• The Journal of the Korea institute of electronic communication sciences
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• v.13 no.4
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• pp.813-818
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• 2018

In this paper, the assessment items were selected for water by drought, water quality by drought, and thermal diseases by heat wave. We described the selection background for these assessment items. and then we weighted the selected vulnerability assessment items. The vulnerability assessment procedures also describe the calculation methods applied in phases and the actual cases. The vulnerability assessment database was analyzed and a climate change vulnerability assessment system for heat waves and droughts using these vulnerability assessment procedures was designed.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• v.9 no.2
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• pp.877-880
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• 2005

As DMB, 3D game, Internet and movie is serviced for the recent mobile devices, high resolution display devices beyond VGA become used. Implementation of real-time moving pictures of 30렌 by software programming is difficult because the performance of mobile processors is not so high. The full frame moving picture can be supported by using specific hardware. In this paper, an OLED controller that is consists of flash memory controller and OLED interface is proposed for real-time moving picture on mobile displays. The proposed OLED controller is implemented in FPGA and the performance is evaluated.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.16 no.11
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• pp.7508-7512
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• 2015

We propose a brain-machine interface(BMI) based human-robot interaction(HRI) platform which operates machines by interfacing intentions by capturing brain waves. Platform consists of capture, processing/mapping, and action parts. A noninvasive brain wave sensor, PC, and robot-avatar/LED/motor are selected as capture, processing/mapping, and action part(s), respectively. Various investigations to ensure the relations between intentions and brainwave sensing have been explored. Case studies-an interactive game, on-off controls of LED(s), and motor control(s) are presented to show the design and implementation process of new BMI based HRI platform.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.28 no.12B
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• pp.1060-1065
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• 2003

As the Internet continues to grow, network games are widely spreaded. For most network games, many users' meet on a server causes a heavy load to the sewer, which in turn brings inconvenience to the user. Moreover, it demands increased expense to the service provider for deploying additional servers. In this paper, we propose a hybrid distributed system for network games. In our proposed system, a client is independents of the server and exchanges information directly with other clients. The client depends on servers only for the update information. The proposed methodology classifies messages according to the characteristics of information that the message handles and applies either client-to-server and pear-to-pear communication for processing messages which increases the efficiency of systems.

• Journal of the Korean Institute of Landscape Architecture
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• v.26 no.3
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• pp.278-287
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• 1998

The halophytes are considered less important in our field, as the land reclamation executed continuously by public or individual. So this research is to use plants more active on the reclaimed land and to verify their utility in the aspect of the landscape planning, design and complementaton. This research is performed at the construction site of Incheon International Airport in Youngjong-do located in West-sea of Korea. Following proposals are the major conclusions drawn from the research:1. The halophytes to be used in the vicinity of the water reservoir in orer to improve the ground for the introduction of new plants and prevent the water contaminatioin. 2. The halophytes to be used as a gound-cover which protects major structures nearby from being damaged by the salt content in the air. 3. Thd halophytes to be used as a unique and panoramic landscape element. They have various colors which change throughout a year. 4. Thd halophytes to be considered as a outdoor recreation resource. The halophytes planted area may be utilized as picnic area, outdoor event plaza, ball game ground, rough in the golf cource and etc. Additional usage of the land include the future rearch site for sea fronted ecological studies and pasture for cows and other livestock.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2006.05a
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• pp.927-930
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• 2006

While Intel has been increasing its exclusive possession in the system IC semiconductor market, IBM, Sony, and Toshiba founded an alliance to develop the next entertainment multi-core processor, which is named CELL. Cell is designed upon the Power architecture and includes 8 SPE (Synergistic processor Element) cores for data handling, and supports SIMD architecture for optimal execution of multimedia, or game applications. Also, it includes expanded Power microarchitecture. In this paper, we analyzed and researched the Cell microprocessor, which is evaluated as the most powerful processor in this era.

• Proceedings of the Korea Information Processing Society Conference
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• 2018.10a
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• pp.729-732
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• 2018

모바일 게임 산업의 발달로 많은 사용자들이 게임을 이용하면서, 그들의 만족감을 사용리뷰를 통해 드러낸다. 실제로 각 리뷰의 범주가 모두 다르지만 현재 구글 플레이 앱스토어(Google Play App Store)의 게임 리뷰 범주는 3가지로 매우 제한적이다. 따라서 본 연구에서는 빠르고 정확한 고객의 요구를 필요로 하는 게임 소프트웨어의 특성을 고려하여 게임 리뷰를 입력했을 때, 게임의 운영 및 시스템에 맞도록 리뷰의 카테고리를 세분화하고 만족도를 분석하는 시스템을 개발한다. 제안 시스템은 인공신경망 모델인 CNN을 평점을 기반으로 훈련시켜 리뷰에 대한 만족도를 도출한다. 또한 Word2Vec을 이용해 단어들 간의 유사도를 구하고, 이를 활용한 단어 배열을 이용하여 가장 스코어가 높은 카테고리로 배정한다. 본 논문은 제안한 리뷰 만족도 및 카테고리 분류 시스템이 실제 효과적으로 리뷰를 보다 의미 있는 정보로써 제공할 수 있음을 보인다.