• 제목/요약/키워드: Decision-Making Models

검색결과 654건 처리시간 0.025초

Development of a Decision Support System for Turbid Water Management through Joint Dam Operation

  • Kim, Jeong-Kon;Ko, Ick-Hwan;Yoo, Yang-Soo
    • 한국수자원학회:학술대회논문집
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    • 한국수자원학회 2007년도 학술발표회 논문집
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    • pp.31-39
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    • 2007
  • In this study we developed a turbidity management system to support the operation for effective turbid water management. The decision-making system includes various models for prediction of turbid water inflow, effective reservoir operation using the selective withdrawal facility, analysis of turbid water discharge in the downstream. The system is supported by the intensive monitoring devices installed in the upstream rivers, reservoirs, and downstream rivers. SWAT and HSPF models were constructed to predict turbid water flows in the Imha and Andong catchments. CE-QUAL-W2 models were constructed for turbid water behavior prediction, and various analyses were conducted to examine the effects of the selective withdrawal operation for efficient high turbid water discharge, turbid water distribution under differing amount and locations of turbid water discharge. A 1-dimensional dynamic water quality model was built using Ko-Riv1 for simulation of turbidity propagation in the downstream of the reservoirs, and 2-dimensional models were developed to investigate the mixing phenomena of two waters discharged from the Andong and Imha reservoirs with different temperature and turbidity conditions during joint dam operation for reducing the impacts of turbid water.

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Transforming Patient Health Management: Insights from Explainable AI and Network Science Integration

  • Mi-Hwa Song
    • International Journal of Internet, Broadcasting and Communication
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    • 제16권1호
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    • pp.307-313
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    • 2024
  • This study explores the integration of Explainable Artificial Intelligence (XAI) and network science in healthcare, focusing on enhancing healthcare data interpretation and improving diagnostic and treatment methods. Key methodologies like Graph Neural Networks, Community Detection, Overlapping Network Models, and Time-Series Network Analysis are examined in depth for their potential in patient health management. The research highlights the transformative role of XAI in making complex AI models transparent and interpretable, essential for accurate, data-driven decision-making in healthcare. Case studies demonstrate the practical application of these methodologies in predicting diseases, understanding drug interactions, and tracking patient health over time. The study concludes with the immense promise of these advancements in healthcare, despite existing challenges, and underscores the need for ongoing research to fully realize the potential of AI in this field.

System for Supporting the Decision about the Possibility of Concluding the Civil Law Agreements for Medical, Therapeutic and Dental Services

  • Hnatchuk, Yelyzaveta;Hovorushchenko, Tetiana;Shteinbrekher, Daria;Kysil, Tetiana
    • International Journal of Computer Science & Network Security
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    • 제22권10호
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    • pp.155-164
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    • 2022
  • The review of known decisions showed that currently there are no systems and technologies for supporting the decision about the possibility of concluding the civil law agreements for medical, therapeutic and dental services. The paper models the decision-making support process on the possibility of concluding the civil law agreements for medical, therapeutic and dental services, which is the theoretical basis for the development of rules, methods and system for supporting the decision about the possibility of concluding the civil law agreements for medical, therapeutic and dental services. The paper also developed the system for supporting the decision about the possibility of concluding the civil law agreements for medical, therapeutic and dental services, which automatically and free determines the possibility or impossibility of concluding the corresponding civil law agreement for the provision of a corresponding medical service. In the case of formation of a conclusion about the possibility of concluding the agreement, further conclusion and signing of the corresponding agreement takes place. In the case of forming a conclusion about the impossibility of concluding the agreement, a request is made for finalizing the relevant agreement for the provision of the relevant medical service, indicating the reasons for the impossibility of concluding the agreement - missing essential conditions in the agreement. After finalization, the agreement can be analyzed again by the developed system for supporting the decision.

AHP를 이용한 스마트TV 제품모델 선정 방법 (Method for Selecting a Smart Television Product Model Using AHP)

  • 변대호
    • 디지털융복합연구
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    • 제12권3호
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    • pp.69-77
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    • 2014
  • 스마트 TV는 일반 TV와 달리 방송시청이라는 목적 외에 다양한 기능을 가지고 있기 때문에 구매자들은 제품 선정시 복잡한 의사결정 문제에 직면하게 된다. 제조사별로 다양한 모델이 출시되고 있기 때문에 이들 제품들 간 비교 평가를 요구하고 있다. 본 연구는 소비자들이 스마트 TV를 구입할 때 고려되어야 하는 선정기준을 도출하고, 계층적 분석과정(AHP)을 사용한 일련의 의사결정 방법을 제안한다. 이용자테스트 방법을 제안하며 Expert Choice를 사용하여 구현 예를 보인다.

Application of Deep Learning: A Review for Firefighting

  • Shaikh, Muhammad Khalid
    • International Journal of Computer Science & Network Security
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    • 제22권5호
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    • pp.73-78
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    • 2022
  • The aim of this paper is to investigate the prevalence of Deep Learning in the literature on Fire & Rescue Service. It is found that deep learning techniques are only beginning to benefit the firefighters. The popular areas where deep learning techniques are making an impact are situational awareness, decision making, mental stress, injuries, well-being of the firefighter such as his sudden fall, inability to move and breathlessness, path planning by the firefighters while getting to an fire scene, wayfinding, tracking firefighters, firefighter physical fitness, employment, prediction of firefighter intervention, firefighter operations such as object recognition in smoky areas, firefighter efficacy, smart firefighting using edge computing, firefighting in teams, and firefighter clothing and safety. The techniques that were found applied in firefighting were Deep learning, Traditional K-Means clustering with engineered time and frequency domain features, Convolutional autoencoders, Long Short-Term Memory (LSTM), Deep Neural Networks, Simulation, VR, ANN, Deep Q Learning, Deep learning based on conditional generative adversarial networks, Decision Trees, Kalman Filters, Computational models, Partial Least Squares, Logistic Regression, Random Forest, Edge computing, C5 Decision Tree, Restricted Boltzmann Machine, Reinforcement Learning, and Recurrent LSTM. The literature review is centered on Firefighters/firemen not involved in wildland fires. The focus was also not on the fire itself. It must also be noted that several deep learning techniques such as CNN were mostly used in fire behavior, fire imaging and identification as well. Those papers that deal with fire behavior were also not part of this literature review.

성과정보 활용행태에 따른 의사결정 행태변화 실증분석 (Decision Making Behavior by Performance Information Use)

  • 조문석;엄영호;허다혜
    • 한국융합학회논문지
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    • 제11권4호
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    • pp.255-264
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    • 2020
  • 이 연구는 성과정보의 특성에 따른 의사결정자의 성과정보 활용 방식이 자원 배분과 관련한 의사결정에 미치는 영향을 실증적으로 분석하는 것이다. 이 연구는 이론적 논의를 토대로 일반행정, 경제정책, 환경정책의 3개 분야에 대한 성과시나리오를 설계하고, 각 시나리오에 대해 연구집단과 대조집단을 구분하였다. 연구집단은 측정지표를 활용한 성과정보를 제공하고, 대조집단에게는 달성여부에 대한 정보만을 제공하여 자원배분 의사결정 방식을 MANCOVA 비교분석한 결과 성과정보의 제공은 응답자들의 예산배분 행태의 차이를 유발하는 주요한 요인인 것으로 나타났다. 일반행정 분야의 경우 두 개 프로그램에서 연구집단과 대조집단의 예산배분 방향성에 차이가 나타났으며 나머지 두 개 시나리오에서는 동일한 방향성을 지니면서도 증액의 규모와 비율에 있어 대부분 유의미한 차이가 도출되었다. 이러한 결과를 토대로 성과정보 활용에 따른 일반적 의사결정 모형을 구축하기 위해 후속 연구에서 전문성의 편향 문제를 극복하기 위해 반복적인 실험 연구와 관료집단과 일반인의 행태를 비교-검증하는 연구를 수행할 것을 제안한다.

퍼지이론을 적용한 정보시스템 모형의 구축 (Development of Information Systems Model Applying Fuzzyset Theory)

  • 정희진;정충영
    • 한국컴퓨터정보학회논문지
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    • 제9권4호
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    • pp.203-214
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    • 2004
  • 본 연구에서는 정보시스템 프로젝트 계획모형에서의 가능성 계획법 적용을 제시하고 있다. 정보시스템 프로젝트 계획모형에서 관리자와 의사결정자들은 불명확한 정보나 주관적 견해로 인해 흔히 일정계획, 비용, 성능(품질)과 같은 모수의 추정에서 많은 어려움을 겪게 된다. 이러한 경우 가능성 의사결정모형은 현실적 의사결정모형에서 적용 가능한 해법을 제시할 수 있게 된다. 본 연구에서 적용된 CPM은 프로젝트가 완료되는 시점을 결정하고 프로젝트를 수행하기 위해 각 활동들의 수행시작 일정을 수립하는 데 목적이 있는 기법이다. 가능성 계획법을 적용한 CPM(Critical Path Method)에서는 의사결정자의 열망수준, 의사결정상의 애매함을 고려할 수 있으며, 계산상의 효율성도 제고할 수 있다. 본 모형은 GINO을 이용하여 해를 구하였으며, 수치 예와 해가 제시되어졌다.

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대여 장비의 예방정비 일정 결정을 위한 의사 결정 모델 개발 (Developing a Decision-Making Model to Determine the Preventive Maintenance Schedule for the Leased Equipment)

  • 이주현;배기호;안선응
    • 산업경영시스템학회지
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    • 제41권2호
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    • pp.24-31
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    • 2018
  • As a system complexity increases and technology innovation progresses rapidly, leasing the equipment is considered as an important issue in many engineering areas. In practice, many engineering fields lease the equipment because it is an economical way to lease the equipment rather than to own the equipment. In addition, as the maintenance actions for the equipment are costly and need a specialist, the lessor is responsible for the maintenance actions in most leased contract. Hence, the lessor should establish the optimal maintenance strategy to minimize the maintenance cost. This paper proposes two periodic preventive maintenance policies for the leased equipment. The preventive maintenance action of policy 1 is performed with a periodic interval, in which their intervals are the same until the end of lease period. The other policy is to determine the periodic preventive maintenance interval minimizing total maintenance cost during the lease period. In addition, this paper presents two decision-making models to determine the preventive maintenance strategy for leased equipment based on the lessor's preference between the maintenance cost and the reliability at the end of lease period. The structural properties of the proposed decision-making model are investigated and algorithms to search the optimal maintenance policy that are satisfied by the lessor are provided. A numerical example is provided to illustrate the proposed model. The results show that a maintenance policy minimizing the maintenance cost is selected as a reasonable decision as the lease term becomes shorter. Moreover, the frequent preventive maintenance actions are performed when the minimal repair cost is higher than the preventive maintenance cost, resulting in higher maintenance cost.

항공안전 규정 및 의사결정모델을 이용한 항공기 형상선정기법 연구 (Aircraft configuration selection method using the airworthiness certification and the decision making process)

  • 윤정원;배보영;이재우;변영환
    • 한국항공우주학회지
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    • 제38권5호
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    • pp.467-476
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    • 2010
  • 본 연구에서는 개념 설계 과정에서 항공 인증 규정 및 의사결정모델을 이용하여 최적화 문제 구성과 항공기 기준형상을 선정하는 프로세스를 정립하고, 이를 소형제트항공기에 적용하였다. 항공기 안전성을 보장하기 위한 최소안전 요구조건인 항공 인증 규정은 항공기 설계 초기단계에서부터 고려되어야 하는 사항으로 반드시 만족해야 한다. 인증 규정 및 사용자 요구도 분석 후, 산업공학기법인 Affinity Diagram, Nested Column Diagram, Quality Function Deployment (QFD), Pugh Concept Selection Matrix와 같은 의사결정모델을 사용하여 alternative 형상군에 대한 평가를 수행하였다. 그 후 Best alternative 형상에 대한 설계가능영역 분석을 통해 항공 인증 규정에 적합하고 객관적인 문제 구성 및 항공기 기준형상을 도출 할 수 있었다.

Business Process Change Design from Decision Model Perspective

  • Han, Hyun-Soo
    • Management Science and Financial Engineering
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    • 제9권2호
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    • pp.21-45
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    • 2003
  • Various organizational factors effect successful implementation of IT enabled business transformation. Among them, the most critical success factor is deemed to overcoming change management problem. Lots of studies have been made on implementation methodologies and business process formalizations to encourage organizational members to accept new business process changes. However, the logic of process redesign still depends on qualitative problem solving techniques mostly depending on basically human intuition such as brainstorming, cause-and-effect analysis, and so on. In this paper, we develop algorithmic procedure applicable to designing various business process changes such as process automation, business process resequencing, and more radical process integration. The framework is employed from dynamic programming approach in the literature, which is based on the decision making paradigm of organizations to abstract business processes as quantitative decision models. As such, our research can fill the gap of limited development of theory based analytic methodologies for business process design, by providing objective rationale to reach the consensus among the organizational members including senior management.