• Proceedings of the Korean Information Science Society Conference
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• 2006.06b
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• pp.175-177
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• 2006

본 논문에서는 컴퓨터 게임 환경에서 에이전트들의 효율적인 협력과 팀워크를 위한 동적 역할 배정 방법을 제시한다. 본 논문에서 제시하는 동적 역할 배정 방식은 설계단계 혹은 실행단계에서 역할 배정에 필요한 모든 사항을 결정하는 기존의 정적 역할 배정 방식이나 동적 역할 배정 방식과는 다른 새로운 역할 배정방식이다. 이 역할 배정 방식에 따르면, 설계단계에서 가능한 역할집합들을 미리 결정하지만, 이 역할집합에 명시된 각각의 역활을 어느 에이전트가 맡아 수행할 것인가는 실행단계에 가서 에이전트들의 경매를 통해서 결정한다. 이 방법은 역할배정에 필요한 실행단계의 협상을 최소화할 수 있는 방법으로서, 실시간 멀티에이전트 환경에 매우 효과적인 방법이다. 본 본문에서는 실험을 통해 새로운 동적 역할 배정 방식의 우수성을 증명해 보았다.

• Korean small business review
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• v.41 no.3
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• pp.95-106
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• 2019

The Economic Gab-Jil, where the stronger are forcing the weaker to sacrifice, is not only a serious social problem, but also it exhausts the vitality of the national economy. Especially, the issue of 'cost reduction (CR) of delivery price' in automobile industry, and the issue of 'tolls' and 'retaliating' in the franchise business are becoming more controversial. This paper suggests some measures to rectify the problems by an analysis using a game-theoretic model. One of the ways to change the 'bad equilibrium', where economic Gab-Jil is prevalent, to the 'good equiblium' is to strengthen the bargaining power of the weak by legal and institutional measures. It is also a more market-friendly system that is self-enforcing, where the regulation is automatically enforced by the incentives of the participants, without relying solely on the enforcement power of regulatory or supervisory bodies

• Journal of the Korea Institute of Information and Communication Engineering
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• v.21 no.7
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• pp.1299-1305
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• 2017

In this paper, we consider a beamforming game between the transmitters in a two-user multiple-input single-output interference channel using limited feedback and investigate how each transmitter is able to find a modified strategy from the quantized channel state information (CSI). In the beamforming game, each of the transmitters (i.e., a player) tries to maximize the achievable rate (i.e., a payoff function) via a proper beamforming strategy. In our case, each transmitter's beamforming strategy is represented by a linear combining factor between the maximum ratio transmission (MRT) and the zero forcing (ZF) beamforming vectors, which is the Pareto optimal achieving strategy. With the quantized CSI, the transmitters' strategies may not be valid because of the quantization errors. We propose a modified solution, which takes into account the effects of the quantization errors.

• Proceedings of the Korea Technology Innovation Society Conference
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• 2005.05a
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• pp.182-201
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• 2005

항공우주산업의 선도적 기술혁신은 타 산업으로 연계 파급 효과가 매우 클 뿐 아니라 역으로 연관산업의 발전이 없이는 기술적 우위를 확보하기 어렵다. 항공우주산업이 높은 기술파급효과를 가지는 이유는 수백만 개의 부품을 퍼즐처럼 조립하는 전형적 복합체계종합산업이기 때문이다. 때문에 기술체계가 매우 복잡하고 관련된 산업 기술 분야 또한 매우 넓다. 항공우주 부품의 생산과정이 매우 복잡하고 엄격한 안전규정을 충족해야 하기 때문에 모기업에 대한 의존도가 높은 강한 가치사슬 구조를 지니게 된다. 항공기 개발 산업은 설계, 생산, 자본재 조달에 있어 계약 관계에 크게 의존한다. 수요특성 면에서는 군 또는 대형 항공사가 주된 수요자로서 상당히 높은 수요독점력(monopsony power)을 지니고 있어 관련 업체(Player)간 협상을 통해 계약관계가 형성된다. 계약 관계는 거래 당사자간의 흥정 또는 협상을 통한 게임으로 지배되는 경향이 많아 상호 정보의 교류는 매우 필수적이다. 항공우주산업 완제품 획득에 있어 체계종합과 부품소재 간의 효율적 연계는 매우 중요한 문제이다. 그럼에도 불구하고 필요기술과 그 소요시점에 있어 부품소재 개발자와 체계설계자는 서로 상이한 시각을 지나고 있다. 양자간의 차이점을 밝히고 전략적 연결점을 제안함이 본 연구의 주제이다. 본 연구는 2004년 산업자원부와 한국산업기술재단이 작성한 항공우주산업기술로드맵의 결과를 바탕으로 항공기 개발 과정에 있어 체계설계와 수많은 부품간의 관계를 파악하고 전략적 시사점을 제시하고자 한다.

• Review of Culture and Economy
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• v.17 no.2
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• pp.63-80
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• 2014

This study evaluates the importance of negotiation agendas and the possibility of reaching the Korea-China FTA agreement. It assesses the current situation of trade barriers in the audiovisual service sector of China and then examines a survey of practitioners and experts to screen important regulations. The results are as follows: First, considering the national economic situation in Korea and the environment of the Chinese trade barrier, an important agenda is to enable the direct service of online games and to reach a co-production agreement in the audiovisual service sector. Second, an agenda regarding the co-production agreement of an audio-visual service sector has high potential to be realized, followed by agendas regarding online game and music services. In the broadcasting and film service sectors, with their high cultural identity, a mutual cooperative approach is needed. Korea bringing up the agenda regarding online service may allow it to gain a net benefit for the next FATs. To realize a mutual cooperative approach, it is necessary to form a frame of mutual interests and cooperation through a co-production agreement of audio-visual service. If both countries agree to acknowledge co-produced content as each country's contents, both would benefit.

• The Journal of The Korea Institute of Intelligent Transport Systems
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• v.11 no.1
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• pp.66-71
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• 2012

In this paper, using the bargaining game theory, we propose a bandwidth management scheme that allocates bandwidth in an efficient and proportionally fair manner between the service classes with different service requirements. Since the traffic input rates of the classes are asymmetric in most of the time, the proposed scheme allocates bandwidth in proportion to the traffic input rates to increase the bandwidth utilization while protecting the quality of service of a class against the excessive traffic input of the other classes. In addition, the proposed method considers the weights of classes so that the bandwidth is allocated differentially among the classes.

• Journal of Korean Society of Water and Wastewater
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• v.24 no.1
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• pp.63-72
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• 2010

This study aims to make a decision about the rational option for a multipurpose dams development of the Tumen river basin so that the adjoining countries will effectively deal with the chronic problems and fully satisfy the fast growing demand of water and power. It has been thus far investigated that the interests between North Korea and China closely depend on the selected option, and they are not well compatible with each other. These situations are defined in terms of the cooperative two-person nonzero-sum game. The Nash bargaining model is then applied to contemplate the rational option, considering two scenarios of economic growth of the North Korea. After analyzing the model, it was expected that 1) two multipurpose dams must be cooperatively developed, and 2) their benefits should be allocated according to demand of each country. The authors finally suggest that a cooperative organisation be established to effectively manage the dams beyond the border of the countries.

• Journal of the International Relations & Interdisciplinary Education
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• v.4 no.1
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• pp.35-56
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• 2024

Based on Kingdon's policy stream model, the logical mechanism of student burden double reduction policy agenda setting process in China was analyzed from three aspects: problem stream, policy stream, political stream. It was found that the direct reflection of data, the feedback and improvement of current policies constitute the problem stream.The high attention of government departments, the suggestions of CPPCC members and experts and scholars, the strong voice of schools, and the continuous voice of stakeholders constitute the policy stream. The ruling party's governing idea and educational policy, national mood and interest game during the transition period constitute the political policy stream. The three streams, coupling interaction, open the policy window, promoting the introduction of the 'double reduction' policy.

• Journal of the Korea Computer Industry Society
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• v.5 no.1
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• pp.131-146
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• 2004

As Electronic Commerce(EC) has been emerged and has developed, many researchers have tried to establish EC framework for automated contract and negotiation using agent technologies. Traditional researches, however, often had limitations. They often enforced the user's participations during the automated contract process of agents. They also could only consider a few of the user's requirements for a specific goods and did not have supported the procedures and methodologies for making the best contract. In this paper, we propose business model on EC based on multiagents to overcome the defects of the previous researches. We apply CSP techniques to brokerage process to satisfy various preferential requirements from the user. We also propose efficient negotiation mechanism using negotiation model of game theory. The contract candidates automatically negotiate and mediate in terms of their benefits through the proposed negotiation mechanism. For the optimal brokerage and automated negotiation, the agents process activities for contract on three layers, which are called competition layer, constraint satisfaction layer and negotiation layer in the proposed model. We also design the message driven communication protocol to support the automated contract among the agents. Finally, we have implemented prototype systems applying the proposed model and have shown the various experimental results for efficiency of the proposed model.

• Monthly Korean Chicken
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• s.136
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• pp.58-61
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• 2006

UR, WTO에 의해 지난 1997년 국내 닭고기 시장이 전면 개방된 이후 매년 닭고기 수입은 급속도로 증가해왔으며, 2003년말 고병원성 조류인플루엔자가 발병되기 전까지만 해도 수입 닭고기는 국내 닭고기 시장의 약 30%를 점유하는 등 국내 닭고기 시장을 크게 위협했다. 특히 미국의 경우 자국 내에서는 인기부위인 가슴육 위주로 소비하고 비 인기부위인 다리육은 우리나라에 덤핑가격으로 수출해 국내 닭고기 시장을 더욱 혼란스럽게 했다. 반면 국내 소비자는 미국, EU 등 선진국과는 달리 닭다리를 선호하여 다리육은 부족하고 가슴육은 남아도는 구조를 가지고 있어 우리 역시 남아도는 닭 가슴육을 이들 국가에 수출해야 할 필요성이 절실하게 요구돼 왔다. 게다가 현재 협상 중인 한 · 미 FTA가 체결되어 이로 인해 미국산 닭고기 수입에 대한 관세가 철폐될 경우 국내 닭고기 시장에 미치는 영향이 적지 않은 것으로 분석됨에 따라 국내닭고기 시장에 미치는 영향을 최소화 하고, 나아가 국내 육계산업의 경쟁력 확보를 위해서는 대미 닭고기 수출의 필요성은 더욱 중요해지고 있다. 이에 필자는 지난 9월 9일부터 16일까지 8일간 미국 워싱턴 D.C 미국 농무성 식품안전검사처(FSIS) 국제업무국(OIA) 등을 방문해 한국의 가축방역 및 축산물 위생검사제도에 대해 설명하고, 대미 삼계탕 수출을 위해 담당자와 기술적 내용을 협의했다. 본고에서는 그날 협의한 내용들을 간략하게 요약하여 게재코자 한다.