• Title/Summary/Keyword: Decision-Making Structure

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Designing Intelligent Agent System for Purchase Decision Making in Retail Electronic Commerce (전자상거래에서의 소비자 구매의사결정을 지원하는 지능형 에이전트 시스템의 설계)

  • Chu Seok Chin;Hong June S.
    • Journal of Intelligence and Information Systems
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    • v.10 no.2
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    • pp.147-163
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    • 2004
  • For the purchase of a cheaper product on the Internet, many customers have been trying to search online shopping mall sites and visit comparison-pricing shops that compare prices and other criteria of the product. Others have been participating into online auction markets or group-buying markets. However, a lot of online shopping malls, auction markets, and group-buying markets provide the same product with different prices. Since these marketplaces have different price settlement mechanism, it is very difficult for the customers to determine marketplace to purchase, considering different kinds of marketplaces at the same time. To overcome such limitations, decision rules and solution procedures for purchase decision making are necessary, which can cover multiple marketplaces simultaneously. For this purpose, purchase decision making in each market must be conducted to maximize customer's utility, and conflicts with other marketplaces must be resolved. Therefore, we have developed the rules and methods that can negotiate cooperatively the purchase decision making in several marketplaces, and designed an architecture of Intelligent Buyer Agent and a message structure to support the idea.

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Parametric optimization of an inerter-based vibration absorber for wind-induced vibration mitigation of a tall building

  • Wang, Qinhua;Qiao, Haoshuai;Li, Wenji;You, Yugen;Fan, Zhun;Tiwari, Nayandeep
    • Wind and Structures
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    • v.31 no.3
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    • pp.241-253
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    • 2020
  • The inerter-based vibration absorber (IVA) is an enhanced variation of Tuned Mass Damper (TMD). The parametric optimization of absorbers in the previous research mainly considered only two decision variables, namely frequency ratio and damping ratio, and aimed to minimize peak displacement and acceleration individually under the excitation of the across-wind load. This paper extends these efforts by minimizing two conflicting objectives simultaneously, i.e., the extreme displacement and acceleration at the top floor, under the constraint of the physical mass. Six decision variables are optimized by adopting a constrained multi-objective evolutionary algorithm (CMOEA), i.e., NSGA-II, under fluctuating across- and along-wind loads, respectively. After obtaining a set of optimal individuals, a decision-making approach is employed to select one solution which corresponds to a Tuned Mass Damper Inerter/Tuned Inerter Damper (TMDI/TID). The optimization procedure is applied to parametric optimization of TMDI/TID installed in a 340-meter-high building under wind loads. The case study indicates that the optimally-designed TID outperforms TMDI and TMD in terms of wind-induced vibration mitigation under different wind directions, and the better results are obtained by the CMOEA than those optimized by other formulae. The optimal TID is proven to be robust against variations in the mass and damping of the host structure, and mitigation effects on acceleration responses are observed to be better than displacement control under different wind directions.

An Operating Software Architecture for PC-based (PC기반의 생산시스템을 위한 운용소프트웨어 구조)

  • Park, Nam-Jun;Kim, Hong-Seok;Park, Jong-Gu
    • Journal of Institute of Control, Robotics and Systems
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    • v.7 no.1
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    • pp.1196-1204
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    • 2001
  • In this paper, a new architecture of operating software associated with the component-based method is proposed. The proposed architecture comprises 문 execution module and a decision-making module. In order to make effective development and maintenance, the execution module is divided into three components. The components are referred to as Symbol, Gateway, and Control, respectively: The symbol component is for the GUI environments and the standard interfaces; the gateway component is for the network communication and the structure of asynchronous processes; the control component is for the asynchronous processing and machine setting or operations. In order to verify the proposed architecture, and off-line version of operating software is made, and its steps are as follows; I) Make virtual execution modules for the manufacturing devices such as dual-arm robot, handling robot, CNC, and sensor; ii) Make decision-making module; iii) Integrate the modules and GUI using a well-known development tools such as Microsofts Visual Basic; iv) Execute the overall operating software to validate the proposed architecture. The proposed software architecture in this paper has the advantages such as independent development of each module, easy development of network communication, and distributed processing of resources, and so on.

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Selecting Strategic Energy Technology R&D Programs Applied to the AHP Approach as Planning a Big-sized Energy R&D Program (대형과제 기획시 계층분석적 의사결정기법을 적용한 전략적 에너지기술 R&D 프로그램 선정)

  • Lee, Seong-Kon;Mogi, Gento;Kim, Jong-Wook
    • New & Renewable Energy
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    • v.4 no.1
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    • pp.25-30
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    • 2008
  • The R&D budget of energy technology development has increased in the sector of korean energy technology development continuously. In addition to that, KIER, the government invested research institute and unique energy technology R&D research institute, is trying to plan for a big-sized energy R&D program for the well focused R&D and excellent research outcomes. In the phase of R&D process, the planning is one of the most important sectors because it drives the direction of R&D. In this study, we suggest the assessment criteria to select a strategic energy technology R&D programs by the analytic hierarchy process, which is one of multi-criteria decision making method (MCDM)We structure 2 tiers of hierarchy for assessing a big-sized R&D program and also establish 6 criteria in the level 1, which are energy environment, economic spin-off, technical spin-off, marketability, KIER mission, and cost. We allocate the relative weights of criteria by checking the values of consistency ratio as making pairwise comparisons. The result of this research will provide the decision makers as they select a right well focused R&D program.

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Selecting strategic energy technology R&D programs applied to the AHP approach as planning a big-sized energy R&D program (대형과제 기획시 계층분석적 의사결정기법을 적용한 전략적 에너지기술 R&D 프로그램 선정)

  • Lee, Seong-Kon;Mogi, Gento
    • 한국신재생에너지학회:학술대회논문집
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    • 2007.11a
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    • pp.690-693
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    • 2007
  • The R&D budget of energy technology development has increased in the sector of Korean energy technology development continuously. In addition to that, KIER, the government invested research institute and unique energy technology R&D research institute, is trying to plan for a big-sized energy R&D program for the well focused R&D and excellent research outcomes. In the phase of R&D process, the planning is one of the most important sectors because it drives the direction of R&D. In this study, we suggest the assessment criteria to select a strategic energy technology R&D programs by the analytic hierarchy process, which is one of multi-criteria decision making method (MCDM). We structure 2 tiers of hierarchy for assessing a big-sized R&D program and also establish 6 criteria in the level 1, which are energy environment, economic spin-off, technical spin-off, marketability, KIER mission, and cost. We allocate the relative weights of criteria by checking the values of consistency ratio as making pairwise comparisons. The result of this research will provide the decision makers as they select a right well focused R&D program.

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Reform of Health System Governance in South Korea (보건의료체계의 거버넌스 개혁)

  • Tchoe, Byongho
    • Health Policy and Management
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    • v.28 no.3
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    • pp.226-232
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    • 2018
  • The objectives of this study were to evaluate the current state of governance structure and management of the health system to achieve the goals of the health system in South Korea, and to propose reform plan. This study drew implications from the governance of United Kingdom, Germany, and Netherlands, based on the principle of health system proposed by World Health Organization. The presidency and the health ministry should make macroscopic decision-making. The government has to decentralize the enforcement by municipality to operate public health and national health insurance (NHI), and to distribute the centralized NHI fund by municipality. The front line health centers and community centers should provide integrated health and social services. The government has to establish diversified regulatory bodies to enhance both the patient-centered care and the efficiency and equity of health care, and to provide mechanisms for ensuring autonomy of providers. The governance of the health system should be composed of the centralization of macro decision-making, the decentralization of implementation by municipality, the integration of health and social services on the front line, and the well-balanced regulation and autonomy on both consumers and suppliers.

Application of Analytical Hierarchy Process in Strategy Priority Decision-making for Brand Communication by Korean Restaurants Overseas (계층분석과정(AHP)을 이용한 해외 한식당 브랜드 커뮤니케이션 전략의 우선순위 결정)

  • Cha, Sung-Mi;Yang, Il-Sun;Baek, Seung-Hee;Kim, Yoon-Ji;Jeong, Jin-Yi
    • Journal of the Korean Society of Food Culture
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    • v.27 no.3
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    • pp.274-284
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    • 2012
  • This study presents the Analytical Hierarchy Process (AHP) as a potential decision-making method for obtaining the relative weights of alternatives through pairwise comparison in the context of hierarchical structure. The aim of this study was to elicit prior strategies for brand communication for Korean restaurants overseas. We created a questionnaire and surveyed experts at government agencies, restaurant companies, and universities from October to November 2011. By applying the pairwise comparison matrix, relevance was perceived as a more important strategy evaluation criteria than effectiveness or urgency. The highest-ranked strategy was the 'Identification of the BI and positioning of Korean restaurants' followed by 'Development of Korean food content for overseas promotion', 'Development of locally customized Korean food recipes and new Korean menus', 'Development of marketing communication strategies for Korean restaurants by countries', and 'Development of Korean restaurant differentiation strategies'. The results of this study can be used for effective Korean food globalization by enhancing the competitiveness in the world market.

Unethical Network Attack Detection and Prevention using Fuzzy based Decision System in Mobile Ad-hoc Networks

  • Thanuja, R.;Umamakeswari, A.
    • Journal of Electrical Engineering and Technology
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    • v.13 no.5
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    • pp.2086-2098
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    • 2018
  • Security plays a vital role and is the key challenge in Mobile Ad-hoc Networks (MANET). Infrastructure-less nature of MANET makes it arduous to envisage the genre of topology. Due to its inexhaustible access, information disseminated by roaming nodes to other nodes is susceptible to many hazardous attacks. Intrusion Detection and Prevention System (IDPS) is undoubtedly a defense structure to address threats in MANET. Many IDPS methods have been developed to ascertain the exceptional behavior in these networks. Key issue in such IDPS is lack of fast self-organized learning engine that facilitates comprehensive situation awareness for optimum decision making. Proposed "Intelligent Behavioral Hybridized Intrusion Detection and Prevention System (IBH_IDPS)" is built with computational intelligence to detect complex multistage attacks making the system robust and reliable. The System comprises of an Intelligent Client Agent and a Smart Server empowered with fuzzy inference rule-based service engine to ensure confidentiality and integrity of network. Distributed Intelligent Client Agents incorporated with centralized Smart Server makes it capable of analyzing and categorizing unethical incidents appropriately through unsupervised learning mechanism. Experimental analysis proves the proposed model is highly attack resistant, reliable and secure on devices and shows promising gains with assured delivery ratio, low end-to-end delay compared to existing approach.

Hierarchical Lazy Greedy Algorithm for Weapon Target Assignment (무기할당을 위한 계층적 레이지 그리디 알고리즘)

  • Jeong, Hyesun
    • Journal of the Korea Institute of Military Science and Technology
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    • v.23 no.4
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    • pp.381-388
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    • 2020
  • Weapon target assignment problem is an essential technology for automating the operator's rapid decision-making support in a battlefield situation. Weapon target assignment problem is a kind of the optimization problem that can build up an objective function by maximizing the number of threat target destructed or maximizing the survival rate of the protected assets. Weapon target assignment problem is known as the NP-Complete, and various studies have been conducted on it. Among them, a greedy heuristic algorithm which guarantees (1-1/e) approximation has been considered a very practical method in order to enhance the applicability of the real weapon system. In this paper, we formulated the weapon target assignment problem for supporting decision-making at the level of artillery. The lazy strategy based on hierarchical structure is proposed to accelerate the greedy algorithm. By experimental results, we show that our algorithm is more efficient in processing time and support the same level of the objective function value with the basic greedy algorithm.

A study on the Introduction factor of E-business(B2B E-commerce) (기업간 e-비즈니스(B2B 전자상거래) 도입요인에 관한 연구)

  • 김경우;주상호
    • Journal of the Korea Society of Computer and Information
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    • v.6 no.3
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    • pp.91-101
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    • 2001
  • In this paper, we examined the concept and introduction effect of internet E-commerce. We analysed some factors are influenced to the B2B internet E-commerce. According to the result Environment factors divided into uncertainty and industrial competition factors, organization factors divided into scale, concentration of decision making, standardization of work. And information system take in IS/IT infra structure, integration of information technology Throughout this study, Enterprises which was introduced to the B2B internet E-commerce enable to be provided for introduction Judgment, guide of decision making, successfully adaptation, furthermore enlarged e-commerce trade.

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