• Title/Summary/Keyword: Game Risk

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대테러전략의 게임이론적 분석 (Defending Multiple Terrorist Targets)

  • 이상훈
    • KDI Journal of Economic Policy
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    • 제35권3호
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    • pp.91-124
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    • 2013
  • 본 논문은 테러리스트와 복수의 테러 대상자 사이의 전략적 행동을 게임이론을 통해 분석한다. 기본모형은 테러리스트가 공격 여부와 그 대상을 선택하고 테러 대상자들은 각자 방어의 수위를 결정하는 게임으로서 테러의 발생확률이 내생적으로 결정되는 구조를 가지고 있다. 균형에서 테러 대상자들은 테러 공격을 서로에게 전가시키려 테러 방어에 과도한 투자를 하게 되며, 동일한 테러 대상자들도 서로 다른 수준의 방어 수위를 유지하게 된다. 균형의 결과는 테러 대상자들의 총합적 후생을 극대화하는 최적 선택에 비해 비효율적임을 보일 수 있는데, 이러한 문제는 원칙적으로 테러 대상자들이 상호 간에 위험을 분담하는 계약을 맺음으로써 해결할 수 있다. 하지만 그러한 계약들도 계약조건의 검증이 쉽지 않아 그 실효성에 제약이 있게 된다.

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A Study on Colors and Emotions of Video Contents -Focusing on depression scale through analysis of commercials

  • Lee, YeonWoo;Kim, MinCheol;Kim, Cheeyong
    • Journal of Multimedia Information System
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    • 제4권4호
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    • pp.301-306
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    • 2017
  • This study is intended to analyze colors felt in TV commercials among video contents, to provide basic resources of color plan that can be applied to production of contents and to help acceptors to change their mood and to lower depression levels. Many studies have revealed the obvious correlation between depression and suicide, so the World Health Organization(WHO) recommends the importance of media by recognizing public that depression is a serious risk factor that leads to suicides and by asserting the necessity of establishing social environment for active treatment. Contents production companies have social and cultural responsibility to convey correct information and to make acceptors have positive emotions. If the result of colors that emotionally healthy people feel through this study is used for production of video contents, it will be helpful to lower the depression scale and to prevent and treat depression by providing visual comfort. In addition, it is expected to be used as an important basic resource for not only production of video contents but also color plan of industrial fields.

콘텐츠 가치평가 활성화 방안 수립 연구 (A Study on the Vitalization of Value Assessment for Contents)

  • 이동욱;최재영
    • 디지털산업정보학회논문지
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    • 제10권3호
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    • pp.311-325
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    • 2014
  • The content industry is the core of the creative economy. The content industry is a fast-growing and high value-added industry, but becomes a high risk market on the other hand. Content related enterprises are difficult business environment. Thus, the accurate evaluation of content on its value is essential. But, it is hard to assess the value of content because of its intangible characteristics. This study is enabled improving the financing conditions of enterprises through the vitalization of value assessment for contents. Improve financial accessibility is required composition, means of access financial diversification, financial ecosystem to vitalization of value assessment for contents. In addition, the system should be established to support the economic activities of the creative content sector companies. The content industry should develop a new strategy for sustained growth. But, we believe that the accordance and cooperation from related parties, including contents producers, contents developers and governmental departments, are definitely required to boost the game contents industry. We hope that the more efficient methods are vitalizing the contents industry.

가상 인터렉티브 인플루언서의 현황과 발전 방안 (Interactive Influencer Status and Development Plan)

  • 박성원
    • Journal of Information Technology Applications and Management
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    • 제29권1호
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    • pp.59-70
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    • 2022
  • Recently, in platforms such as YouTube and Instagram, virtual characters resembling human life become the main characters, produce various contents, breathe with the public, and create the era of virtual humans. For example, existing game characters appear as virtual characters with unique AUs, or AI characters created by reflecting the public's preferences are actively communicating with the public through advertisements and SNS activities. As the consumption of video content through smart devices increases significantly in the post-corona era, virtual influencers are being used as all-round entertainers because there is little risk of personality controversy or production cost. there is a trend In this study, we investigated the characteristics of the case of being active as an influencer among the activities of a virtual character, and how the interactive aspect of the influencer appears by identifying the current situation through major cases. Combining this, based on the analysis of the influence of virtual influencers, the parts that producers should recognize are derived, and the differentiated characteristics of interactive virtual influencers are summarized. In addition, the difficulties of virtual influencers were investigated and problems were identified, and for the development of the content industry, a more favorable method for interaction was presented and suggestions were made to secure inner sincerity.

Production of clothes for beach volleyball players: Safe against ultraviolet radiation damage

  • He Huang
    • Geomechanics and Engineering
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    • 제32권6호
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    • pp.627-637
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    • 2023
  • Volleyball is an international sport with many fans. This sport has made significant progress in schools and clubs. Volleyball is suitable for all age groups and can be used in different environments. It has many social and physical benefits. During the game provides special physical training for the players and is considered one of the most exciting games. Another type of volleyball is beach volleyball, a beach sport and one of the Olympic sports held on the sand with the same rules as volleyball. This sport is usually played in coastal areas, especially with wide sandy beaches. Because this sport is played in open spaces, the players stay in this space for a long time and are exposed to dangerous ultraviolet radiation. It is a wavelength of light in the range of electromagnetic waves with a wavelength between 10 and 400 nm. This wavelength is shorter than visible light and more protracted than X-ray. Ultraviolet (UV) rays are naturally present in sunlight and include about 10% of all waves emitted from the sun's surface. Prolonged exposure to ultraviolet light causes acute and chronic damage to the skin and vision and even destroys the entire immune system. Different covers of the earth's surface reflect different amounts of UV rays. For example, snow cover, sand, and seawater surface reflect this radiation. Therefore, the health of volleyball players is in danger due to this harmful radiation. This work aims to introduce a type of clothing made of nanoparticles that can repel ultraviolet rays and protect beach volleyball players whose health is at risk from this radiation.

인공지능 서비스 UX 평가를 위한 프레임워크 (A proposed framework for UX evaluation of artificial intelligence services)

  • 허수진;윤주상;김성희
    • 한국정보통신학회:학술대회논문집
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    • 한국정보통신학회 2021년도 춘계학술대회
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    • pp.274-276
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    • 2021
  • 인공지능이 빠르게 발달하면서 의료, 교육, 게임 등 일상생활에 적용되고 있다. 인공지능 알고리즘은 예측 측면에서 언제나 확률적으로 불확실성을 지니고 있다. 기존 제품이나 서비스는 개발자의 의도에 따라 프로그램이 동작하기 때문에, 상호작용에 따른 결과가 명확하며 이에 대한 UX 평가를 할 수 있었다. 하지만, 인공지능이 적용된 서비스는 기존 서비스들과 달리 상호작용에 따른 불확실성으로 인해 위험 요소가 따르고 있다. 이러한 이유로, 인공지능 서비스의 UX 평가는 새로운 체계가 필요하지만, 기존 UX 평가 척도만을 사용하여 평가되고 있다. 인공지능 서비스의 특징을 반영하여, 정확한 UX 평가를 진행할 수 있도록 본 논문에서는 인공지능에 task 위임 적합도, 기존 UX 평가 항목, 기술에 대한 개인적 차이를 포함한 AI-UX 프레임워크를 제안하였다.

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The Effect of Inaccurate Quality Signaling under Information Asymmetry

  • Seung Huh
    • 아태비즈니스연구
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    • 제14권1호
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    • pp.231-246
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    • 2023
  • Purpose - This study attempts to provide a new theoretical perspective on the quality signaling and its impact on a market under information asymmetry, focusing on how the accuracy and the cost of quality signaling affect sellers' and buyers' profit, suggesting appropriate designs of quality signaling methods which mitigates information asymmetry. Design/methodology/approach - In order to examine the effect of quality signaling on strategic interactions within the market, we establish an analytic model where market outcomes are determined by seller's quality claim and price, and buyers are risk-neutral. By investigating this analytic model through relevant game trees, we find the subgame perfect Nash equilibria of the market and predict related market outcomes based on sellers' quality signaling strategy. Findings - Our analytic model shows counterintuitive results that seller profit will be the lowest with inaccurate quality signaling and the highest with no quality signaling, mostly due to the certification cost. Consequently, sellers should proceed with caution if the quality signaling is less than accurate, as it may backfire. We believe that this is due to the fact that the inaccuracy of quality signaling causes some confusion and uncertainty in both sellers and buyers' decision to maximize profit, making it hard for sellers to predict buyers' behavior. Research implications or Originality - Although the sources and types of quality signaling errors have been investigated in the literature, there has not been satisfactory understanding regarding how inaccuracy of quality certification affects specific market outcomes. We expect that our theoretical model would provide important implications on how to utilize quality signaling to solve adverse selection issues in markets under information asymmetry.

Comparative Evaluation of Machine Learning Models for Predicting Soccer Injury Types

  • Davronbek Malikov;Jaeho Kim;Jung Kyu Park
    • 한국산업융합학회 논문집
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    • 제27권2_1호
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    • pp.257-268
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    • 2024
  • Soccer is type of sport that carries a high risk of injury. Injury is not only cause in the unlucky soccer carrier and also team performance as well as financial effects can be worse since soccer is a team-based game. The duration of recovery from a soccer injury typically relies on its type and severity. Therefore, we conduct this research in order to predict the probability of players injury type using machine learning technologies in this paper. Furthermore, we compare different machine learning models to find the best fit model. This paper utilizes various supervised classification machine learning models, including Decision Tree, Random Forest, K-Nearest Neighbors (KNN), and Naive Bayes. Moreover, based on our finding the KNN and Decision models achieved the highest accuracy rates at 70%, surpassing other models. The Random Forest model followed closely with an accuracy score of 62%. Among the evaluated models, the Naive Bayes model demonstrated the lowest accuracy at 56%. We gathered information about 54 professional soccer players who are playing in the top five European leagues based on their career history. We gathered information about 54 professional soccer players who are playing in the top five European leagues based on their career history.

정보과학영재와 일반아동 집단에서 인터넷 중독에 영향을 미치는 위험요인과 보호요인의 차이점 분석 (Difference Analysis of Risk and Protection Factors for Internet Addiction Between Computer Science Gifted Students and Average Students)

  • 이재호;한광희
    • 영재교육연구
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    • 제20권3호
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    • pp.1005-1026
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    • 2010
  • 오늘날 우리는 빠르게 변화하고 있는 세계에 살고 있다. 이러한 변화의 중심에는 놀랍게 발전하고 있는 정보통신기술이 있다. 정보통신기술이 우리 인간에게 주는 여러 가지 혜택 중 하나가 인터넷이다. 그리고 이 인터넷에 우리는 생활의 상당 부분을 의지하고 있으며, 이에 따른 부작용으로 인터넷 중독이라는 것이 발생했다. 그러나 인터넷 중독에 관한 선행 연구들은 대부분 인터넷 중독 중 게임 중독에 관한 연구와 개인의 심리적 요인들에 대한 연구가 대부분이다. 이에 반해 정보과학영재의 인터넷 중독에 관한 연구는 매우 빈약한 편이다. 정보과학영재와 일반아동의 인터넷 중독에 관한 특성을 비교 연구한다면, 그 연구결과에 따라 인터넷 중독에 관한 원인 분석 및 치료에 도움이 될 만한 결과를 얻어낼 수 있을 것이다. 따라서 본 논문에서는 기존 연구의 위험-보호요인을 비교 분석한 뒤, 인터넷 중독에 미치는 위험-보호요인을 정보과학영재교육 분야의 전문가 그룹을 활용한 델파이 분석을 통해 각 요인들을 선정하였다. 그리고 선정된 도구를 이용하여 정보과학영재아동과 일반아동을 비교 분석해 봄으로써 정보과학영재아동만의 특징을 추출하여 인터넷 중독 예방 및 치료에 도움이 될 수 있는 시사점을 도출하였다.

플랫폼의 소셜로그인 서비스(Authing Service): 보안과 편의 사이의 적절성 (Authing Service of Platform: Tradeoff between Information Security and Convenience)

  • 유은솔;김병조
    • 경영정보학연구
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    • 제20권1호
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    • pp.137-158
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    • 2018
  • 소셜로그인 서비스(authing service)는 온라인 플랫폼들간의 연결을 더욱 용이하게 함으로써 온라인 플랫폼 생태계에 긍정적인 영향을 미치고 있다. 소비자들은 추가적인 로그인 없이 다른 플랫폼으로의 접근이 가능해졌으며 플랫폼들은 다른 플랫폼들로부터 잠정적인 소비자들을 유치할 수 있다는 점이 이점으로 작용한다. 하지만 보다 쉽게 다른 플랫폼에 접속할 수 있는 소셜로그인 서비스는 플랫폼 생태계의 보안을 취약하게 만들고 있다. 즉, 플랫폼들 간의 연결이 많아질수록 소비자들의 편의성은 높아지는 반면에 플랫폼의 보안은 취약해진다. 그러므로 본 연구는 소셜로그인 서비스의 편의성과 보안의 상반관계를 고려하여 플랫폼이 결정해야 하는 적절한 수준의 소셜로그인 서비스를 제시하였을 뿐만 아니라 소셜로그인 전략이 전체적인 플랫폼 생태계에 미치는 영향에 있어서는 게임이론법을 적용하여 분석하였다. 본 연구를 통해 제시한 결과는 다음과 같다. 첫째, 소비자들의 해킹에 대한 기대손실이 낮은 경우, 플랫폼 생태계 전반의 구성원 수는 증가하게 된다. 둘째, 소셜로그인 서비스에서 소비자가 증가할 경우, 연결된 플랫폼들(joint sites)은 소비자들로부터 더 많은 이익을 창출할 수가 있다. 마지막으로, 소비자들의 해킹에 대한 기대손실이 낮은 경우, 플랫폼 제공자들은 플랫폼의 보안과 관련된 노력이 필요하다. 본 연구에서 소셜로그인 서비스를 제공하는 플랫폼 기업들에 대한 연결성과 보안에 대한 방법을 제시하였고, 이외에 전체플랫폼을 분석, 관리하는 정책담당자에게 정책적인 방향을 제시하였다.