• 한국정보과학회논문지:소프트웨어및응용
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• 제28권12호
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• pp.885-895
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• 2001

기존의 시스템 분석 모델은 설계와의 일관성 유지를 위해 개체들 간의 관계설정과 이벤트의 흐름을 표현하는데 다양한 방법을 제시하고 있다. 그러나, 시스템 내의 개체의 식별보다는 시나리오를 바탕으로 한 시스템의 흐름을 중심으로 그에 관련된 개체를 도출하는데 초점을 맞추고 있다. 시스템에서 개체들을 체계적으로 정의하고 구축하는 작업은 소프트웨어 개발에서 기초적이면서도 매우 중요한 작업이며, 구축된 개체는 시스템의 중요한 재산이 될 수 있다. 특히, 비즈니스 시스템의 경우, 비즈니스 규칙이나 수강업무의 출석부와 같이 두 가지 이상의 개체에서 계산되거나 유도된 정보는 매우 중요한 시스템의 재산이 될 수 있다. 피리고, 이러한 정보들을 관리하는 정보 즉 메타 정보 또한 시스템의 중요한 재산(asset)이 된다. 본 연구는 시스템의 중요한 재산이 될 수 있는 개체 정보를 도출할 수 있는 구분 기준을 도입한 시스템 분석 모델을 제안한다. 이 모델을 통해 시스템은 개체, 인터페이스, 이벤트 또는 행위의 세 가지 부분으로 분석되며, 그 증 시스템의 개체는 독립개체와 그에 관련된 종속개체 및 그에 적용될 수 있는 비즈니스규칙을 포함하는 제약조건개체를 도출하며, 이벤트의 물리적 또는 행정적 관리사항은 관리개체로 표현할 수 있다. 다양한 방식의 개체 식별은 분석과정에서 누락되는 개체를 줄일 수 있다.

• 한국도서관정보학회지
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• 제50권1호
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• pp.273-291
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• 2019

본 연구는 시소러스 국제표준(ISO 25964-1) 제11절 "패싯 분석"과 제5절의 "시소러스에 있어서의 개념 및 그들의 범위"를 분석하여, 제11절에 예시된 기본 범주(대상, 물질, 에이전트, 행위, 장소, 시간 등)를 확장하는 데에 목적이 있다. 이를 위해 온톨로지의 최상위 개념(구구리일랑(溝口理一郞)의 상위 온톨로지인 YAMATO)과 기존의 기본 범주들(Ranganathan의 PMEST, FRBR 제3집단, CRG 13 범주 등)을 참조하여, 기본 범주에 정신적 실체를 명시적으로 추가하고, 일부를 조정하여 기본 범주를 확립했다. 또한, 확립된 기본 범주를 Ranganathan의 PMEST의 구체성/추상성과 구구리일랑(溝口理一郞)의 YAMATO의 독립성/종속성을 기반으로 재편성 및 구조화하였다. 최상위 범주를 독립 실체와 종속 실체로 이분하고 하위 구분으로 전자는 28범주, 후자는 2범주를 두었다. 본 연구의 결과는 기본 범주의 활용이 기대되는 분류, 택소노미, 시소러스 등의 제어 어휘 및 정보검색용 온톨로지를 생성할 때 최상위 개념으로서 재활용되고 참조할 수 있을 것으로 기대된다.

• The Journal of Asian Finance, Economics and Business
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• 제7권4호
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• pp.133-143
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• 2020

The paper investigates the factors affecting the profitability of commercial banks in Asian developing countries, including Vietnam, Malaysia and Thailand. We use panel data of four entities; ten banks in Vietnam, eight banks in Malaysia, nine banks in Thailand and all 27 commercial banks from the period 2012 to 2016. Particularly, Return on Asset, Return on Equity and TOBINQ are defined as profitability indicators, which are impacted by three main types of independent variables, namely bank-specifics, which include CAR, NPL, Cost to income, Liquidity ratio and Bank size, industry-specific variable-concentration HHI and macroeconomic-specific variables, which consist of GDP growth and Inflation. Using panel data regressions, the paper identifies several similarities and differences among empirical results on the models of four entities, each of three countries and the overall sample. The most outstanding similarity is that all entities record the significantly negative relationship between operational risk and banking profitability. Likewise, the significantly negative influence of bank size to profitability is found on models of Vietnam and Thailand and no significant effect on the model of Malaysia. Meanwhile, the most controversial result comes up with the negative relationship between CAR and profitability indicators as well as the positive association between credit risk and banking profitability.

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 2001년도 ICCAS
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• pp.88.1-88
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• 2001

The paper describes a new approach to the organization of an artificial brain for mobile multi-robot systems, where individual robots are not considered as independent entities, but rather forming together a universal parallel and distributed machine capable of processing both information and physical matter in distributed worlds. This spatial machine, operating without any central control, is driven on top by distributed mission scenarios in WAVE-WP language. The scenarios can be written on a variety of levels, and any mixture of them, supporting the needed system flexibility and freedom ...

• Journal of Electrical Engineering and Technology
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• 제7권5호
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• pp.681-688
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• 2012

This paper presents the application of Differential Evolution (DE) algorithm to obtain a solution for Bid Based Dynamic Economic Dispatch (BBDED) problem including the transmission losses and to maximize the social profit in a deregulated power system. The IEEE-30 bus test system with six generators, two customers and two trading periods are considered under various bidding strategies in a day-ahead electricity market. By matching the bids received from supplying and distributing entities, the Independent System Operator (ISO) maximize the social profit, (with the choices available). The simulation results of DE are compared with the results of Particle swarm optimization (PSO). The results demonstrate the potential of DE algorithm and show its effectiveness to solve BBDED.

• 정보학연구
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• 제2권1호
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• pp.79-90
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• 1999

과거의 전통적인 기업들은 서로 독립적으로 자유 경쟁을 수행하면서 그들의 목적을 추구하였으며 이때의 전략은 경쟁전략이 우선 이였다. 그러나 최근에 와서 세계 기업의 전략 동향을 분석하여 보면 경쟁전략 보다는 협력 전략이 기업의 목표를 달성하는데 있어서 더 효과적이고 효율적으로 생각되고 있다. 본 논문에서는 이를 검토하고 또한 아시아의 위기에 대한 바람직한 대처방안의 모형을 제시코자 한다.

• 지식경영연구
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• 제16권4호
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• pp.169-190
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• 2015

The status of small and medium-sized enterprises has been changed into more independent business entities rather than simply subcontractor so that the utilization of specialized knowledge has been much more necessary for the survival in the market. However, small and medium-sized enterprises, it is difficult to sufficient investment in knowledge services due to limited resources relative to large enterprises and demand for knowledge services business of government support is growing. For this reason, it is important to measure accurately the demand for knowledge services of small and medium-sized enterprises in knowledge management for effective utilization of knowledge service. In this study, we analyzed previous studies on small and medium-sized enterprises knowledge services that can be utilized in a comprehensive way. As a result, we developed knowledge service needs assessment model based on five critical success factors for continual growth and 12 types of knowledge service. This model has been modified and supplemented through expert meeting using delphi research method and topic modeling analysis using secondary data. This study is attempted to appropriately measure necessary knowledge services for small and medium-sized enterprises so that generated the evaluation model of knowledge service demands, comprehensively dealing with core knowledge services for many kinds of business entities. It is expected that the developed model will be a useful tool to understand and evaluate knowledge services demands of enterprises.

• International Journal of Computer Science & Network Security
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• 제21권9호
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• pp.247-260
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• 2021

Data modeling is a process of developing a model to design and develop a data system that supports an organization's various business processes. A conceptual data model represents a technology-independent specification of structure of data to be stored within a database. The model aims to provide richer expressiveness and incorporate a set of semantics to (a) support the design, control, and integrity parts of the data stored in data management structures and (b) coordinate the viewing of connections and ideas on a database. The described structure of the data is often represented in an entity–relationship (ER) model, which was one of the first data-modeling techniques and is likely to continue to be a popular way of characterizing entity classes, attributes, and relationships. This paper attempts to examine the basic ER modeling notions in order to analyze the concepts to which they refer as well as ways to represent them. In such a mission, we apply a new modeling methodology (thinging machine; TM) to ER in terms of its fundamental building constructs, representation entities, relationships, and attributes. The goal of this venture is to further the understanding of data models and enrich their semantics. Three specific contributions to modeling in this context are incorporated: (a) using the TM model's five generic actions to inject processing in the ER structure; (b) relating the single ontological element of TM modeling (i.e., a thing/machine or thimac) to ER entities and relationships; and (c) proposing a high-level integrated, extended ER model that includes structural and time-oriented notions (e.g., events or behavior).

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 2000년도 추계학술대회 논문집
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• pp.267-271
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• 2000

A part definition must not only provide shape information of a nominal part but also contain non-shape information such as tolerances, surface roughness and material attributes. Although machining features are useful for suitable shape information for process reasoning in the CAPP, they need to be integrated with tolerance information for effective process planning. We develop the tolerance modeler that efficiently integrates machining features with tolerance information for feature-based CAPP It is based on the association of machining features, tolerance features. and tolerances Tolerance features, where tolerances are assigned, are classified into two types; one is the face that is a topological entity on a solid model and the other is the functional geometry that is not referenced to topological entities. The functional geometry is represented by using machining features All the data for representing tolerance information with machining features are stored completely and unambiguously in the independent tolerance structure. The developed tolerance modeler is implemented as a module of a comprehensive feature-based CAPP system.

• 환경정책연구
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• 제3권1호
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• pp.31-54
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• 2004

This paper aims at analyzing the issues on how to improve UNEP's roles in international environmental governance context. Although UNEP has been presumed to play a leading role in addressing global environment problems, several problems (such as collective action problem, fragmentation, lack of authority and insufficient legitimacy) in its governance have led to losing its leadership to other entities such as the World Bank, OECD and CSD. While a position of changing UNEP's status to an independent international organization has not been developed enough, several efforts, which might not be sufficient to respond to the changing environment of international environmental governance, have been made to strengthen UNEP's roles in the short run. These include universal membership, strengthening the financing of UNEP, and issues concerning MEAs. Whether current efforts for enhancing UNEP's roles in international environmental governance will be successful or not, would rely on to what extent interested parties hold political wills for its reforms and how to draw a compromise on critical issues among those parties.