Mathematical Programming Models for Establishing Dominance with Hierarchically Structured Attribute Tree

한창희,Han, Chang-Hee Military Operations Research Society of Korea 2002 한국국방경영분석학회지 Vol.28 No.2

This paper deals with the multiple attribute decision making problem when a decision maker incompletely articulates his/her preferences about the attribute weight and alternative value. Furthermore, we consider the attribute tree which is structured hierarchically. Techniques for establishing dominance with linear partial information are proposed in a hierarchically structured attribute tree. The linear additive value function under certainty is used in the model. The incompletely specified information constructs a feasible region of linear constraints and therefore the pairwise dominance relationship between alternatives leads to intractable non-linear programming. Hence, we propose solution techniques to handle this difficulty. Also, to handle the tree structure, we break down the attribute tree into sub-trees. Due to there cursive structure of the solution technique, the optimization results from sub-trees can be utilized in computing the value interval on the topmost attribute. The value intervals computed by the proposed solution techniques can be used to establishing the pairwise dominance relation between alternatives. In this paper, pairwise dominance relation will be represented as strict dominance and weak dominance, which ware already defined in earlier researches.

제한적 인지 기반의 맵핑을 이용한 가상인간의 항해 특성

한창희,김래현,김태우,Han, Chang-Hee,Kim, Lae-Hyun,Kim, Tae-Woo 한국시뮬레이션학회 2005 한국시뮬레이션학회 논문지 Vol.14 No.2

This paper presents characteristics of a virtual human's navigation using a limited perception-based mapping. Previous approaches to virtual human navigation have used an omniscient perception requiring full layout of a virtual environment in advance. However, these approaches have a limitation on being a fundamental solution for a human-likeness of a virtual human, because behaviors of humans are basically based on their limited perception instead of omniscient perception. In this paper, we integrated Hill's mapping algorithm with a virtual human to experiment virtual human's navigation with the limited perception. This approach does not require full layout of the virtual environment, 360-degree's field of view, and vision through walls. In addition to static objects such as buildings, we consider enemy emergence that can affect an virtual human's navigation. The enemy emergence is used as the variable on the experiment of this present research. As the number of enemies varies, the changes in arrival rate and time taken to reach the goal position were observed. The virtual human navigates by two conditions. One is to take the shortest path to the goal position, and the other is to avoid enemies when the virtual human encounters them. The acquired result indicates that the virtual human's navigation corresponds to a human cognitive process, and thus this research can be a framework for human-likeness of virtual humans.

가상군(Computer-Generated Forces)의 자율지능화 방안 연구

한창희,조준호,이성기,Han, Chang-Hee,Cho, Jun-Ho,Lee, Sung-Ki 한국시뮬레이션학회 2011 한국시뮬레이션학회 논문지 Vol.20 No.1

최근 군은 과거 냉전시대와 다른 상황에 능동적으로 대처하고 비용 대비 훈련의 효과를 극대화하기 위한 방안으로 모델링 시뮬레이션 기법에 많은 관심을 보이고 있다. 이 모델링 시뮬레이션을 이용한 훈련이 효과적이기 위해서는 좀 더 사실적인 전장 환경과 전투상황을 모의해야 하는데, 최근에 이를 위해서 컴퓨터상에서 인간 행위와 부대의 집단논리를 표현하는 CGF(Computer Generated Forces)에 대한 기술 개발이 주목받고 있다. 인간 행위를 모델링하는 CGF는 자동화된 병력을 모의함으로써 적군을 모의하거나 미래 전투실험, 새로운 전투개념 개발 등 중요하면서도 다양한 역할을 수행 할 수 있다. 이번 연구에서는 CGF 가상군인의 자율지능화의 방안을 고찰해보고자 한다. 군사시뮬레이션상의 가상군인의 자율지능화의 첫걸음인 과업행위 목록의 적용을 과업행위의 기본요소인 METT+T를 기반으로 그 적용과정을 설명한다. 또한 군사모의 논리는 참 진의 이진값 표현이 외에도 '보유 무기가 충분하면 급속 공격을 빠르게 하라'와 같은 모의 규칙상에서는 군사 전문가에 의해서 결정될 수밖에 없는 '충분하다', '빠르다'와 같은 퍼지 팩트가 존재한다. 이러한 주관성이 가미된 많은 군사모의 논리를 완벽히 표현하기 위해서는 퍼지 추론을 이용하는 것이 효과적인데, 이를 이번 소부대 전투 시뮬레이션에 적용하여 보다 사실적인 모의가 가능하도록 하였다. Modeling and Simulation(M&S) technology gets an attention from various parts such as industry and military. Especially, military uses the technology to cope with a different situation from the one in the Cold War and maximize the effect of training against the cost in the new environment. In order for the training based on M&S technology to be effective, the situations of a battlefield and a combat must be more realistically simulated. For this, a technique development on Computer-Generated Forces(CGF) which represents a unit's simulation logic and a human's simulated behaviors is focused. The CGF simulating a human's behaviors can be used in representing an enemy force, experimenting behaviors in a future war, and developing a new combat idea. This paper describes a methodology to accomplish Computer-Generated Forces' autonomous intelligence. It explains the process of applying a task behavior list based on the METT+T element onto CGFs. On the other hand, in the domain knowledge of military field manual, fuzzy facts such as "fast" and "sufficient" whose real values should be decided by domain experts can be easily found. In order to efficiently implement military simulation logics involved with such subjectivity, using a fuzzy inference methodology can be effective. In this study, a fuzzy inference methodology is also applied.

미래사회의 고객니즈 분석을 통한 시나리오 기반의 미래 기술예측 방법론

김영명(Young Myoung Kim),김민관(Min Kwan Kim),이준석(Jun suk Lee),한창희(Chang Hee Han) 한국경영과학회 2011 經營 科學 Vol.28 No.3

Recently, the level of uncertainty in R&D investment for an enterprise has increased due to technological development and industrial changes. Accordingly it is necessary for an enterprise to forecast the future or foresight the future technologies. But, the fact that the methodology used in predicting future technology is suitable for large project makes enterprise difficult to forecast the future technologies or trends. Thus, this study seeks for available methodology for future technology foresight from enterprise standpoint. The methodology proposed in this research is based on the scenario model, especially focused on the customer needs and future society change.

군사 컴퓨터 캐릭터 자율지능 전술생성시스템

한창희(Chang-Hee Han) 한국엔터테인먼트산업학회 2016 한국엔터테인먼트산업학회논문지 Vol.10 No.2

국방 분야의 모델링/시뮬레이션은 1960년대 이후 구성모의 시스템인 워게임을 중심으로 발달해 왔다. 이러한 모든 노력은 좀 더 사실적인 전장환경과 전투상황을 모의하기 위함이며, 최근에는 컴퓨터상에서 인간 행위와 부대의 집단논리를 표현하는 CGF(Computer Generated Forces)에 대한 기술 개발이 주목받고 있다. 군사적인 용어로 쓰이는 CGF는 현재 민간 부분에서 NPC(Non-player character)라는 비슷한 개념의 용어로 널리 사용되고 있다. 목적을 달성하기 위해 지정된 스크립트에 따라 행위를 하거나 업무 수행의 계획을 세우는 것을 기본적인 CGF (NPC)의 지능이라 할 수 있다. 본 논문에서는 더욱 발전된 지능을 위하여 계획을 세우는 것뿐만 아니라 계획 수행이 어려울 때 수정하여 새로운 계획을 적응적으로 만들어내는 기법과 설계 방안을 제안하였다. Modeling and Simulation on a National Defense domain is being developed, focusing on war-game, a constructive simulation, since the 1960’s. This kind of effort is to simulate situations of battlefield and engagement to be more realistic. Thus, a technique development on CGF (computer-generated forces) which represent behaviors of human and military unites is emphasized. The word, CGF rooted on military domain, is widely used nowadays, which is similar to NPC (non-player character) in game domain. The basic intelligence of CGF (NPC) is to act based on a script containing steps to a goal or to plan to achieve a goal. This paper proposes a methodology for design and technique that adaptively generate a new plan after a modification when a problem occurs with the current plan, resulting in a upgraded intelligence.

울혈성 심부전의 임상적 경과와 빈혈 및 요산과의 관계

한창희 ( Chang Hee Han ),온영근 ( Young Keun On ),서존 ( John Suh ),김도회 ( Do Hwoi Kim ),방덕원 ( Duk Won Bang ),현민수 ( Min Su Hyon ),김성구 ( Sung Koo Kim ),권영주 ( Young Joo Kwon ) 대한내과학회 2005 대한내과학회지 Vol.68 No.6

제3의 자동차 산업, 튜닝에 대한 관심은 지속된다

한창희(Han Chang Hee) 한국자동차공학회 2012 오토저널 Vol.34 No.12

e-Pioneer

한창희(Chang-Hee Han),김명섭(Myong-Sup Kim),이기광(Ki-Kwang Lee) 한국산업경영시스템학회 2009 한국산업경영시스템학회지 Vol.32 No.1

The introduction and application of IT(Information Technology) to a company has become to be viewed as a key factor for the business competitiveness and improved productivity. This study presents an approach to evaluation of a company's informatization level, which is especially appropriate for small and medium enterprises. The proposed evaluation method, based on the traditional questionnaire approaches, considers the various characteristics of the company, e.g., types of business, characteristics of customers, and locations of supply chains etc. A web-based system was developed to enable users to obtain the evaluation results from the evaluation method. The system also provides a function to produce valuable strategies for informatization by utilizing the case base which will be cumulated by repetitive evaluation requests. Finally, a real case was analyzed in order to verify the practicality of the evaluation system.

증례 : 내시경적 부우지 확장술로 호전된 Plummer-Vinson 증후군 1예

한창희 ( Chang Hee Han ),이준성 ( Joon Seong Lee ),김정훈 ( Jung Hoon Kim ),정인섭 ( In Seop Jung ),조주영 ( Joo Young Cho ),이문성 ( Moon Sung Lee ),심찬섭 ( Chan Sup Shim ) 대한내과학회 2004 대한내과학회지 Vol.67 No.-

FSM 기법에 의한 자율지능 가상군사 컴퓨터 캐릭터 구현 방안

한창희(Chang-Hee Han) 한국엔터테인먼트산업학회 2016 한국엔터테인먼트산업학회논문지 Vol.10 No.3

자율지능은 시스템상의 개체(Entity)들이 인간행위를 묘사하며 인간의 개입 없이 스스로 판단하여 행동을 취하는 것을 말한다. CGF(Computer Generated Forces)의 특징은 바로 이러한 자율적인 의사결정능력에 있다. 본 논문에서는 다양한 자율지능 설계기법을 비교하였다. 또한, FSM (finite state machine) 에 의한 자율지능 가상군의 설계 기법을 제안하였다. 중요한 과업으로 무성무기로 처지, 자체능력으로 처치, 은밀우회, 대기의 4가지 행위에 대하여 FMS 기법에 의한 설계를 수행하였다. An autonomous intelligence means that an entity in a system autonomously acts and decides, and thus it simulates a human behavior realistically. The key aspect that CGF should be embodied is such an ability of autonomous decision making. Various design techniques for the autonomous intelligence are analyzed in this paper. Also, a design technique for the intelligent CGF based on FSM (finite state machine) is proposed. The FSM-based design is performed on major 4 behaviors: a disposal by silent weapon; one by self-power; concealed detour; and waiting.