• Journal of Digital Contents Society
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• v.15 no.3
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• pp.339-346
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• 2014

VOD Service, which has established a solid foothold as a profit model of digital broadcasting companies, is emerging as a key application of the N-screen technologies and services. In the circumstance, broadcasting companies are trying to promoting their VOD services by providing mobile services for improving the VOD service usability. The paper introduces a VOD mobile app (of a domestic digital cable broadcasting), which includes the functions of promoting the VOD programs and events printed on a VOD guide book, directly transmitting the information (e.g., book-marking and remote-control signals) to a set-top box, and watching the video contents stored in the mobile device on TV.

• Journal of Advanced Navigation Technology
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• v.16 no.5
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• pp.839-845
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• 2012

This paper deals with the design and development of the remote control and measurement systems by Embedded Web Server. The remote control and measurement systems are implemented by Cortex M-3 ARM micro-controller. The user application software for the control and measurement system user, and the firmware software of device drivers for peripherals such as a digital input/output device, AD/DAC(Analog to Digital/Digital to Analog Converter), LCD, and temperature/humidity sensor are developed in Eclipse environment using Codesourcery C, Java script, and HTML. The experimental result of the proposed control and measurement systems implemented in this paper is evaluated via real-time experiments, which works well as designed.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2017.10a
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• pp.290-293
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• 2017

최근 IoT 기술발달로 인한 스마트폰 및 대용량 미디어기기 사용증가로 인터넷 네트워크 사용량이 폭발적으로 증가되고 있고, 이러한 데이터 사용량 급증으로 대량의 데이터를 지칭하는 빅데이터 수집 및 분석에 많은 기업과 정부가 주목하고 있다. 빅데이터는 기존에 없던 새로운 데이터의 구축이 아니며, 그동안 축적된 다방면의 방대한 데이터의 집합이라 할 수 있다. 빅데이터의 이용 및 분석에 대한 기업 정부 학계의 수요는 증가하고 있지만, 고난도의 빅데이터 분석을 위한 인프라 구축이 선결과제이어서, 이러한 인프라구축 비용 때문에 빅데이터 분석이 일선 산업분야에 바로 적용하는데 많은 장애요인이 되어 데이터 분석가들의 빅데이터 분석에 애로사항으로 존재하고 있다. 이러한 어려움을 해소하기 위한 방안으로 새로운 인프라 구축 없이 Google Analytics API를 연동한 R 프로그래밍의 데이터 시각화를 활용한 데이터 분석 방안을 제시하고자 한다. 본 연구에서는 구글 애널리틱스 API를 연동하여 사용자 웹사이트의 사용자접속, 사이트운영, 이벤트 발생 등의 데이터를 R 프로그램을 활용하여 사이트 현황을 데이터 시각화로 분석하고 운영중인 웹사이트에 적용 가능한 콘텐츠 개발 방안에 대해 연구하였다.

• Proceedings of the Korea Water Resources Association Conference
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• 2023.05a
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• pp.262-262
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• 2023

기후변화 및 도시화에 따른 강우 패턴의 변화는 수문 변화를 야기시키며, 이에 따른 영향을 평가하고 예측하기 위해서는 수문학적 모델을 통해 정량화하는 과정이 필요하다. 그러나 기존에 개발되어 사용되고 있는 대부분의 수문학적 모델은 해외에서 개발되어 국내 유역 특성을 반영하지 못하는 한계가 있다. 이러한 한계점을 극복하기 위해서 L-THIA ACN-WQ 2016과 2018 모델이 개발되어 적용성이 평가된 바 있다. 하지만 L-THIA ACN-WQ 모델의 경우 시단위 유량 및 수질 모의가 불가능한 한계점이 있다. 소규모 유역이나 도시화된 지역에서는 하루에 여러 번의 강우 이벤트가 발생하거나 단기간에 많은 양의 강우가 발생하는 경우가 많기 때문에, 이러한 강우-유출을 평가하기 위해서는 시단위 모의가 필요하다. 본 연구에서는 시단위 유량-수질 모의가 가능한 L-THIA sub-daily WQ 모델을 개발하였으며, 갑천 유역과 복하천 유역에서 적용성을 평가하였다. L-THIA sub-daily WQ 모델은 SCS-CN 방법과 Green-Ampt 방법을 함께 고려할 수 있도록 개발하였으며, 국내의 토지이용 및 강우 특성을 고려할 수 있도록 점근 CN과 강우 계급별 EMC를 활용하였다. 갑천 유역과 복하천 유역에서 시단위 유량 예측 결과 R2는 0.61~0.69, NSE는 0.61~0.65, PBIAS는 -4.0~-7.3으로 모의된 시단위 유량이 자연현상을 잘 모의하는 것으로 나타났으며, 수질 예측 결과 T-P와 SS가 자연현상을 잘 모의하는 것으로 나타났다. 따라서, 본 연구에서 개발된 L-THIA sub-daily WQ 모델은 점오염원을 포함하고 있는 도시유역에서 비점오염원에 평가에 활용될 수 있을 것으로 사료된다.

• KIPS Transactions on Software and Data Engineering
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• v.7 no.2
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• pp.43-50
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• 2018

Biometric information computing is greatly influencing both a computing system and Big-data system based on the bio-information system that combines bio-signal sensors and bio-information processing. Unlike conventional data formats such as text, images, and videos, biometric information is represented by text-based values that give meaning to a bio-signal, important event moments are stored in an image format, a complex data format such as a video format is constructed for data prediction and analysis through time series analysis. Such a complex data structure may be separately requested by text, image, video format depending on characteristics of data required by individual biometric information application services, or may request complex data formats simultaneously depending on the situation. Since previous bio-information processing computing systems depend on conventional computing component, computing structure, and data processing method, they have many inefficiencies in terms of data processing performance, transmission capability, storage efficiency, and system safety. In this study, we propose an improved biosensing converged big data computing architecture to build a platform that supports biometric information processing computing effectively. The proposed architecture effectively supports data storage and transmission efficiency, computing performance, and system stability. And, it can lay the foundation for system implementation and biometric information service optimization optimized for future biometric information computing.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.36 no.12B
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• pp.1509-1521
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• 2011

WfMC, which is one of the international standardization organizations leading the business process and workflow technologies, has been officially released the BPAF1.0 that is a standard format to record process instances' event logs according as the business process intelligence mining technologies have recently issued in the business process and workflow literature. The business process mining technologies consist of two groups of algorithms and their analysis techniques; one is to rediscover flow-oriented process-intelligence, such as control-flow, data-flow, role-flow, and actor-flow intelligence, from process instances' event logs, and the other has something to do with rediscovering relation-oriented process-intelligence like process-driven social networks and process-driven affiliation networks from the event logs. The current standardized format of BPAF1.0 aims at only supporting the control-flow oriented process-intelligence mining techniques, and so it is unable to properly support the relation-oriented process-intelligence mining techniques. Therefore, this paper tries to extend the BPAF1.0 so as to reasonably support the relation-oriented process-intelligence mining techniques, and the extended BPAF is termed BPAF2.0. Particularly, we have a plan to standardize the extended BPAF2.0 as not only the national standard specifications through the e-Business project group of TTA, but also the international standard specifications of WfMC.

• The Journal of The Korea Institute of Intelligent Transport Systems
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• v.11 no.6
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• pp.1-14
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• 2012

Traffic management centers (TMC) collect real-time traffic data from the field and have powerful databases for analysing, recording, and archiving the data. Recent advanced sensor and communication technologies have been widely applied to intelligent transportation systems (ITS). Regarding sensors, various in-vehicle sensors, in addition to global positioning system (GPS) receiver, are capable of providing high resolution data representing vehicle maneuverings. Regarding communication technologies, advanced wireless communication technologies including vehicle-to-vehicle (V2V) and vehicle-to-vehicle infrastructure (V2I), which are generally referred to as V2X, have been widely used for traffic information and operations (references). The V2X environment considers the transportation system as a network in which each element, such as the vehicles, infrastructure, and drivers, communicates and reacts systematically to acquire information without any time and/or place restrictions. This study is motivated by needs of exploiting aforementioned cutting-edge technologies for developing smarter transportation services. The proposed system has been implemented in the field and discussed in this study. The proposed system is expected to be used effectively to support the development of various traffic information control strategies for the purpose of enhancing traffic safety on highways.

• Journal of Information Management
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• v.41 no.2
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• pp.95-110
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• 2010

We studied the methods for boosting a user participating service using KOSEN(The Global Network or Korean Scientists and Engineers) OpenLab service. OpenLab is a laboratory database of all the fields of science and technology, and it is different from other services in that basically it makes users register their information volunteerly. User participation service is not easy, so we made several strategies like promotion, event, and connection to other services. In result, we could collect about 4,300 laboratory database. Because user participation is a key concept for the Web 2.0, this study would contribute to the operation of the related services, especially to the services for scientists and engineers.

• The Journal of the Convergence on Culture Technology
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• v.2 no.4
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• pp.41-44
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• 2016

Though expandeding rapidly in recent years in smart content market, it has been limited utiliztion of smart contents due to limitations of duration and characteristics in the host country. In the past two Olympics, it tried but is lack of leverage. In this study, we suggest the utilization of smart contents of Pyeong Chang Olympic Winter Games held in South Korea in 2018. It is expected to be a unique opportunity enabled the advent of smart content worldwide coupled with Tokyo, Beijing Olympics.

• The Journal of the Korea Contents Association
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• v.10 no.11
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• pp.414-423
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• 2010

The purpose of this study was to provide basic data to establish MICE(meeting, incentive, convention, exhibition) marketing strategies in Busan Metropolitan by examining its satisfaction level. Surveys were conducted for participants of 10 cases of Meetings, Incentive, Conventions and Exhibition in Busan Metropolitan. A time series analysis was performed by its data from 2002 to 2008. Research findings showed that accomodations, facilities and MICE operation were highly scored, while connected tour, shopping, easy access to airport, and interpretation were scored relatively low. Especially connected tour was scored very low. Therefore, we should concentrate on tourism attractions and tourism information services to improve visitors satisfactions. Second, we should develop shopping items to improve satisfactions of MICE visitors. Since this study only targeted the 10 MICEs they cannot represent the entire MICEs in Busan and absolute comparison was difficult because of different content and size of each MICE, which could be the limitation of this study.