• Title/Summary/Keyword: Cooperative Decision

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Ship information system: overview and research trends

  • Liu, Sheng;Xing, Bowen;Li, Bing;Gu, Mingming
    • International Journal of Naval Architecture and Ocean Engineering
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    • v.6 no.3
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    • pp.670-684
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    • 2014
  • Ship Information Systems (SISs) have been one of the main research focuses in ship design and become a multidisciplinary area. With these growing research trends, it is important to consolidate the latest knowledge and information to keep up with the research needs. In this paper, the SIS and its different forms are introduced and discussed. The beginning of this paper discusses the history and evolution of SIS. The next part of this paper focuses on different fields and research areas such as networking technology, information fusion, information decision, message display, ship control in real-time SISs. A Semi-Physical Simulation Platform (SPSIM) designed for SIS research and its running effect through a new Fuzzy-PID fusion algorithm are introduced in this paper then. A brief literature survey and possible future direction concerning each topic is included.

Impact of positive/close margins in oropharyngeal cancer according to the HPV status (HPV 관련성에 따른 구인두암에서의 positive/close 절제연의 의미)

  • Jung, Yuh-Seog
    • Korean Journal of Head & Neck Oncology
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    • v.34 no.2
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    • pp.1-9
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    • 2018
  • With the emerging knowledge about tumor biology specific for human papillomavirus (HPV)-related head and neck cancers, the classical understanding about the curative surgery in head and neck cancers are starting to progress, customized for their HPV-associations and ultimately specific for tumor biologic characteristics. The common rule for surgery should reflect the biologic characteristics of target tumors, but still, multi-institutional large-scale data could be scarce, due to the subjective feature of surgical treatment itself. However, the impact of HPV for margin determination is now being questioned by multiple groups, and typical example is European Cooperative Oncology Group (ECOG)-3311 study. Here, we review the impact of viral association for surgical decision and its biological background and implications.

Real Options Analysis of Groundwater Extraction and Management with Water Price Uncertainty

  • Lee, Jaehyung
    • Environmental and Resource Economics Review
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    • v.27 no.4
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    • pp.639-666
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    • 2018
  • This paper analyses the investment options of groundwater development project under water price uncertainty. The optimal investment threshold price which trigger the investment are calibrated base on monopolistic real options model. Stochastic dynamic model is set to reflect the uncertainty of water price which follows the GBM (Geometric Brownian Motion) process. Our finding from non-cooperative investment decision model is that uncertainty of water price could deter the groundwater investment by considering the existence of option values. For policy markers, it is easy to manage 'charges for utilization of groundwater' rather than 'performance guarantee ratio' when managing groundwater investment with pricing policy. And it is necessary to make comprehensive and well-designed policies considering the characteristics of regional groundwater reservoir and groundwater developers.

Ethics and Responsibility of Scientific Researchers in a Pandemic Era

  • Lee, Kyung-Hee
    • Development and Reproduction
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    • v.25 no.4
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    • pp.321-326
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    • 2021
  • The purpose of this paper is to critique the links between science and scientific researchers, politics and capital surrounding vaccines and vaccination in a pandemic era. It also introduces standards for adapting ethical guidelines for research under public health emergencies to specific circumstances and contexts. It also introduces ethical standards to be applied to scientific research. that is, scientific relevance, social value, cooperative partnerships, reasonable risk-benefit costs, fair and voluntary participation, independent review, and equal moral respect for participants and affected communities. It also outlines the COVID-19 (coronavirus disease 2019) pandemic-consent and other research procedure modifications proposed by Oregon Health and Science University (OHSU). We are on the lookout for powerful capital and hegemonic groups inseparable from politics and important decision makers in the pandemic era - that is, scientists, supporters, and scientific civic groups. It underscores the need for an independent and formal scientific advisory body with the right balance between science and politics.

A Study on the Theory and its Case Study of Production Design - Focused on the Japanese Construction Projects - (생산설계의 이론과 적용 사례연구 -일본의 건축공사 프로젝트를 대상으로-)

  • Kim, Jin-Ho
    • Korean Journal of Construction Engineering and Management
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    • v.6 no.5 s.27
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    • pp.89-101
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    • 2005
  • The early phase of construction projects, communication among the related participants has great influence on the further transaction of the projects. However, important decision making are made by the experience of the field managers in practice without the method for systematic analysis. For example, in building construction project, selection process for construction method has been executed by decision making of some architects dependent on their experience. As a result, there have been frequent construction method alterations during the construction process and delay of duration, addition of cost, etc have followed accordingly. The main reasons of such a mal-functional transaction are due to the absent of the reasonal procedure of decision making reflecting the characteristics of construction project. Therefore, there is a need for an supporting tool and production design for the selection of rational construction method. The objective of this study is to propose production design process and decision making model in relation to various influent factors at the early phase of construction projects. To achieve these objectives, this study 1)analyzes the prior theory about production design, 2)we have studied about selection process for optimal construction method through constraint analysis in structural works, 3)performs a case study to embody the problems of the production design, and 4)proposes a cooperative committee model for supporting production design by analyzing the results of case study and interviewing experts. It is anticipated that the effective tool of proposed model would be able to improve communication among the related participants and systematically accumulate data that might be used in similar construction projects.

The Effects of Financial Pressure and Tit for tat Strategy on Decision Making in White-collar crime (재정적 압박과 전략정보 유무가 화이트칼라 범죄 의사결정에 미치는 영향)

  • Hong, Donggyu;Jo, Eunkyung
    • Korean Journal of Forensic Psychology
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    • v.12 no.2
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    • pp.199-221
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    • 2021
  • The purpose of this study is to examine some factors affecting the decision-making process of white-collar crime. In a between-subject experiment, 102 adult white-collar workers were randomly assigned to a financial pressure condition or tit for tat strategy condition. Participants went through a decision-making process in a modified iterated prisoner's dilemma for a white-collar crime scenario to earn points. The obtained score indicated the risk of committing a crime. The lower the score, the higher was the risk of participating in a crime. The results showed that participants who received only tit for tat strategy information without financial pressure instructions showed the lowest risk of participating in a crime, and those who received only financial pressure without the strategic information had the highest risk of participating in a crime. In addition, those who received the financial pressure instructions were more likely to participate in a crime than those who did not receive financial pressure instructions regardless of the provision of strategic information. The results of this study propose the need for measures to legally relieve financial pressure, the need for education on white-collar crimes for office workers, and the need for a decision-making structure within the enterprise that is not dogmatic but cooperative and mutually verifiable.

On the on and off line integrated marketing strategy for retail firms empirical models for BAROKOSA (유통기업의 온-오프라인 통합마케팅 전략 -(주)Barokosa 사례를 중심으로-)

  • Kim Chang-Ho
    • The Journal of Information Technology
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    • v.6 no.3
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    • pp.151-168
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    • 2003
  • The present paper attempts to describe on and off line integrated marketing and develop an empirical model for distribution industry. The focus is given on the small and medium size retail and service area. With both empirical case studies and literature review, we aim to develop empirical cases and propose a desirable marketing strategy for specific firms : BAROKOSA is pursues cooperation in wholesale business on the internet. For the purpose of the cooperative and integrated marketing of on and off line business, first of all, the firms should establish a clear target and share vision and mission for their directions. We suggest the following guidelines: (i) customer-based decision making, (ii) thoroughly cooperative competition, (iii) confidence in their work and business, (iv) courage to live up to action and (v) innovation to lead change.

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A Study on Swarm Robot-Based Invader-Enclosing Technique on Multiple Distributed Object Environments

  • Ko, Kwang-Eun;Park, Seung-Min;Park, Jun-Heong;Sim, Kwee-Bo
    • Journal of Electrical Engineering and Technology
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    • v.6 no.6
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    • pp.806-816
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    • 2011
  • Interest about social security has recently increased in favor of safety for infrastructure. In addition, advances in computer vision and pattern recognition research are leading to video-based surveillance systems with improved scene analysis capabilities. However, such video surveillance systems, which are controlled by human operators, cannot actively cope with dynamic and anomalous events, such as having an invader in the corporate, commercial, or public sectors. For this reason, intelligent surveillance systems are increasingly needed to provide active social security services. In this study, we propose a core technique for intelligent surveillance system that is based on swarm robot technology. We present techniques for invader enclosing using swarm robots based on multiple distributed object environment. The proposed methods are composed of three main stages: location estimation of the object, specified object tracking, and decision of the cooperative behavior of the swarm robots. By using particle filter, object tracking and location estimation procedures are performed and a specified enclosing point for the swarm robots is located on the interactive positions in their coordinate system. Furthermore, the cooperative behaviors of the swarm robots are determined via the result of path navigation based on the combination of potential field and wall-following methods. The results of each stage are combined into the swarm robot-based invader-enclosing technique on multiple distributed object environments. Finally, several simulation results are provided to further discuss and verify the accuracy and effectiveness of the proposed techniques.

Distributed Computing Models for Wireless Sensor Networks (무선 센서 네트워크에서의 분산 컴퓨팅 모델)

  • Park, Chongmyung;Lee, Chungsan;Jo, Youngtae;Jung, Inbum
    • Journal of KIISE
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    • v.41 no.11
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    • pp.958-966
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    • 2014
  • Wireless sensor networks offer a distributed processing environment. Many sensor nodes are deployed in fields that have limited resources such as computing power, network bandwidth, and electric power. The sensor nodes construct their own networks automatically, and the collected data are sent to the sink node. In these traditional wireless sensor networks, network congestion due to packet flooding through the networks shortens the network life time. Clustering or in-network technologies help reduce packet flooding in the networks. Many studies have been focused on saving energy in the sensor nodes because the limited available power leads to an important problem of extending the operation of sensor networks as long as possible. However, we focus on the execution time because clustering and local distributed processing already contribute to saving energy by local decision-making. In this paper, we present a cooperative processing model based on the processing timeline. Our processing model includes validation of the processing, prediction of the total execution time, and determination of the optimal number of processing nodes for distributed processing in wireless sensor networks. The experiments demonstrate the accuracy of the proposed model, and a case study shows that our model can be used for the distributed application.

The development of social studies teaching-learning system for ICT using and self-directed learning ability Improvement (ICT 활용과 자기 주도적 학습력 신장을 위한 사회과 교수-학습 시스템 개발)

  • Choi, Yong-Hun;Hwang, Sun-Young;Goh, Byung-Oh
    • Journal of The Korean Association of Information Education
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    • v.7 no.2
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    • pp.207-217
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    • 2003
  • Individual studying that compose knowledge and improve efficiency of studying through collection of information by various class strategy which takes advantage of web, and Cooperative learning that can elevate sense of responsibility and solve the problem through communication with another person have been developed actively. But, individuation tutoring materials that is developed present doesn't fit of causing learner's interest, and stimulating curiosity about problem because mostly studying is gone in presentation form. Also, cooperative learning materials are lacking connection with actual course of education, application is difficult in real class spot. So, this research has applied self-directed learning, centered with interested operation activity, aimed at improvement in various thought. Also, we have developed social studies tuition-learning system, purpose to the management is possible with on-line project studying which could improve mind-decision ability and ICT application ability. This system is developed for flexible management could be possible in various class circumstance, and level learning could be done through accomplishment-test and the result could be applied by feedback process.

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