• 한국콘텐츠학회:학술대회논문집
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• 한국콘텐츠학회 2006년도 추계 종합학술대회 논문집
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• pp.309-311
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• 2006

본 논문은 셋톱박스내의 디지털 비디오 레코더를 활용하여 디지털 텔레비전의 양방향성 구현하기 위한 해법을 다루고 있다. 지금까지는 디지털방송 중에 시청자가 요구하는 방대한 양의 다양한 인터랙티브 콘텐츠들을, 그것들이 데이터방송이건 HD급 방송이건 간에, 소화해 내기란 힘든 일이었으며, 더군다나 IPTV가 출현하기 전까지는 상상도 못할 일이었다. 비록 초고속 인터넷을 통한 IPTV가 양방향 서비스를 가능하도록 하고는 있지만, 셋톱박스를 통해서 한 번에 방대한 양의 콘텐츠를 수신하기란 그리 쉬운 일은 아니다. 이 논문에서 본인은 디지털방송에서 대용량의 인터랙티브 서비스를 제공받는데 장애가 되는 콘텐츠 다운로드 딜레마에 대한 효율적인 해법을 디지털 비디오 레코더가 장착된 셋톱박스를 통해 제시하고자 한다.

• International Journal of Contents
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• 제15권4호
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• pp.1-7
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• 2019

As the recent developments of artificial intelligence, particularly machine-learning, impact every aspect of society, they are also increasingly influencing creative fields manifested as new artistic tools and inspirational sources. However, as more artists integrate the technology into their creative works, the issues of diversity and fairness are also emerging in the AI-based creative practice. The data dependency of machine-learning algorithms can amplify the social injustice existing in the real world. In this paper, we present an interactive visualization system for raising the awareness of the diversity and fairness issues. Rather than resorting to education, campaign, or laws on those issues, we have developed a web & ML-based interactive data visualization system. By providing the interactive visual experience on the issues in interesting ways as the form of web content which anyone can access from anywhere, we strive to raise the public awareness of the issues and alleviate the important ethical problems. In this paper, we present the process of developing the ML-based interactive visualization system and discuss the results of this project. The proposed approach can be applied to other areas requiring attention to the issues.

• 한국콘텐츠학회논문지
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• 제7권3호
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• pp.87-92
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• 2007

본 논문은 셋톱박스내의 개인형 비디오 레코더를 활용하여 디지털 텔레비전의 양방향성 구현하기 위한 해법을 다루고 있다. 지금까지는 디지털방송 중에 시청자가 요구하는 방대한 양의 다양한 인터랙티브 콘텐츠들을, 그것들이 데이터방송이건 HD급 방송이건간에, 소화해 내기란 힘든 일이었으며, 더군다나 IPTV가 출현하기 전까지는 상상도 못할 일이었다. 비록 초고속 인터넷을 통한 IPTV가 양방향 서비스를 가능하도록 하고는 있지만, 셋톱박스를 통해서 한 번에 방대한 양의 콘텐츠를 수신하기란 그리 쉬운 일은 아니다. 이 논문에서 본인은 디지털 방송에서 대용량의 인터랙티브 콘텐츠를 제공받는데 장애가 되는 다운로드 딜레마에 대한 효율적인 해법을 개인형 비디오 레코더가 장착된 셋톱박스를 통해 제시하고자 한다.

• Journal of Communications and Networks
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• 제12권3호
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• pp.246-252
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• 2010

A binary linear integer program is formulated for the problem of expanding the capacity of a fiber optic network and routing the traffic to deliver new interactive multimedia services. A two-phase Lagrangian dual search procedure and a Lagrangian heuristic are developed. Computational results show superior performance of the two-phase subgradient optimization compared with the conventional one-phase approach.

• 한국정보처리학회:학술대회논문집
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• 한국정보처리학회 2009년도 추계학술발표대회
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• pp.941-942
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• 2009

스토리텔링 엔진은 이야기 생성을 위한 서술 구조를 만드는 인터랙티브 스토리텔링 시스템의 핵심이다. 지금까지 스토리텔링 엔진에 대한 많은 연구가 있었지만, 본 논문에서는 기존의 스토리텔링 엔진 모델에 웹 검색 기술을 이용한 모듈을 추가하여 하이브리드 방식으로 이야기를 생성하는 스토리텔링 엔진 모델을 제안한다.

• 대한산업공학회지
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• 제25권3호
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• pp.310-320
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• 1999

A mixed model assembly line (MMAL) is a special type of production line where a variety of product models similar in product characteristics are assembled. Determining the model sequence is an important problem for the efficient use of MMALs. This paper considers interactive multiobjective decision making problems for MMAL sequencing. Evolution program is employed as an underlying framework. In this study, a way of approximating the linear utility function is first studied. To improve its search efficiency to the solution space preferred by a decision maker, some modifications of a standard evolution program are made: operating several subpopulations instead of a single population and merging two or more subpopulations to a single subpopulation, and using a Pareto pool. Extensive computational experiments are carried out to verify the performance of the proposed approach. The computational results show that our approach is promising in solution quality.

• 한국멀티미디어학회논문지
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• 제9권12호
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• pp.1617-1627
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• 2006

The concept of middleware for digital TV receivers is not new one. Using middleware for digital TV development has a number of advantages. It makes it easier for manufacturers to hide differences in the underlying hardware. It also offers a standard platform for application developers. Digital TV middleware enables set-top boxes(STBs) to run video, audio, and applications. The main concern of digital TV middleware is now to reduce its memory usage because most STBs in the market are small footprint. In this paper, we propose several ideas about how to reduce the required memory size on the runtime area of DTV middleware using a new native process technology. Our proposed system has two components; the Efficient Native Process Module, and Enhanced Native Interface APIs for concurrent native modules. With our approach, the required memory reduced from 50% up to 75% compared with the traditional approach. It can be suitable for low end STBs of very low hardware limitation.

• 한국전자거래학회지
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• 제2권1호
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• pp.95-115
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• 1997

Over the past several years, numerous CALS technologies have been developed for improving productivity and the quality of products and services in an organization. Among these technologies, Interactive Electronic Technical Manual(IETM) has been recognized as one of the most important CALS technologies. IETM is a technical manual authored by means of an appropriate media in a digital format. This study was an attempt to establish conceptual foundations in the literature for IETM. This study described the concept of IETM and differentiated IETM from a technical manual. Also, the author suggested an effective approach to developing an ITEM and explained the relationship between HyTime/MID and IETM.

• 로봇학회논문지
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• 제1권1호
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• pp.46-57
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• 2006

It is well known that mathematical solutions for multi-agent planning problems are very difficult to obtain due to the complexity of mutual interactions among multi-agent. Most of the past research results thus are based on the probabilistic completeness. However, the practicality and effectiveness of the solution from the probabilistic completeness is significantly reduced by heavy computational burden. In this paper, we propose a practically applicable solution technique for multi-agent planning problems, which assures a reasonable computation time and a real world application for more than 3 multi-agents for the case of general shaped paths in agent movement. First, to reduce the computation time, a collision map is utilized for detecting potential collisions and obtaining collision-free solutions for multi-agents. Second, to minimize the maximum of multi-agent task execution time, a method is developed for selecting an optimal priority order. Simulations are finally provided for more than 20 agents to emphasize the effectiveness of the proposed interactive approach to multi-agent planning problems.

• 한국컴퓨터정보학회논문지
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• 제20권1호
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• pp.29-37
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• 2015

Nowadays, the user-centric application based web 2.0 has replaced the web 1.0. The users gain and provide information by interactive network applications. As a result, traditional approaches that only extract and analyze users' local document operating behavior and network browsing behavior to build the users' preference profile cannot fully reflect their interests. Therefore this paper proposed a preference analysis and indicating approach based on the users' communication information from MicroBlog, such as reading, forwarding and @ behavior, and using the improved PersonalRank method to analyze the importance of a user to other users in the network and based on the users' communication behavior to update the weight of the items in the user preference. Simulation result shows that our proposed method outperforms the ontology model, TREC model, and the category model in terms of 11SPR value.