• 제목/요약/키워드: knowledge bases

검색결과 181건 처리시간 0.027초

귀납적 일반화를 이용한 형태지식의 습득과 디자인에 관한 연구 (A Study on the Learning Shape Knowledge and Design with Inductive Generalization)

  • 차명열
    • 한국실내디자인학회논문집
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    • 제19권6호
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    • pp.20-29
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    • 2010
  • Art historians and critics have defined the style as common features appeared in a class of objects. Abstract common features from a set of objects have been used as a bench mark for date and location of original works. Commonalities in shapes are identified by relationships as well as physical properties from shape descriptions. This paper will focus on how the computer and human can recognize common shape properties from a class of shape objects to learn design knowledge. Shape representation using schema theory has been explored and possible inductive generalization from shape descriptions has been investigated. Also learned shape knowledge can be used. for new design process as design concept. Several design process such as parametric design, replacement design, analogy design etc. are used for these design processes. Works of Mario Botta and Louis Kahn are analyzed for explicitly clarifying the process from conceptual ideas to final designs. In this paper, theories of computer science, artificial intelligence, cognitive science and linguistics are employed as important bases.

수리 모형의 표현과 관리를 위한 다면적 접근법 (Multi-facetted Approach to Mathematical Model Representation and Management)

  • 김종우;김형도;박성주
    • 한국경영과학회지
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    • 제23권2호
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    • pp.157-185
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    • 1998
  • One of the essential issues in model systems is how to represent and manipulate mathematical modeling knowledge. As the bases of integrated modeling environments, current modeling frameworks have limitations: lack of facility to coordinate different users perpectives and lack of mechanism to reuse modeling knowledge. In this paper, multi-facetted modeling approach is proposed as a basis for the development of integrated modeling environment which provides facilities for (1) independent management of modeling knowledge from individual models; (2) object-oriented conceptual blackboard concept; (3) multi-facetted modeling; and (4) declarative representation of mathematical knowledge. The proposed multi-facetted approach is illustrated using multicommodity transportation models.

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A modelling methodology for robotic workcells through knowledge base

  • Kim, Dae-Won;Ko, Myoung-Sam;Lee, Bum-Hee
    • 제어로봇시스템학회:학술대회논문집
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    • 제어로봇시스템학회 1989년도 한국자동제어학술회의논문집; Seoul, Korea; 27-28 Oct. 1989
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    • pp.583-588
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    • 1989
  • In this paper, a modelling methodology for a robotic workcell is proposed and compared with the conventional Petri nets model. Also, a method for managing the cell operation is described through the knowledge base. The knowledge bases for state transition and assembly job information are obtained from the state transition map(STM) and the assembly job tree(AJT), respectively. Using the knowledge base, the system structure is discussed in both managing the cell operation and evaluating the various performance. Finally, a simulation algorithm is presented with the simulation results to show the effectiveness of the proposed modelling approach.

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Extracting Ontology from Medical Documents with Ontology Maturing Process

  • Nyamsuren, Enkhbold;Kang, Dong-Yeop;Kim, Su-Kyoung;Choi, Ho-Jin
    • 한국정보처리학회:학술대회논문집
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    • 한국정보처리학회 2009년도 춘계학술발표대회
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    • pp.50-52
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    • 2009
  • Ontology maintenance is a time consuming and costly process which requires special skill and knowledge. It requires joint effort of both ontology engineer and domain specialist to properly maintain ontology and update knowledge in it. This is specially true for medical domain which is highly specialized domain. This paper proposes a novel approach for maintenance and update of existing ontologies in a medical domain. The proposed approach is based on modified Ontology Maturing Process which was originally developed for web domain. The proposed approach provides way to populate medical ontology with new knowledge obtained from medical documents. This is achieved through use of natural language processing techniques and highly specialized medical knowledge bases such as Unified Medical Language System.

Design and Research for Intelligent Typhoon Evasion System for Ships

  • Wang, Jing-Quan;He, Yi;Shi, Ping-An;Peng, Xiao-Hong;Xu, Zu-Yuan;Qin, Shan-Ci;Li, Qing-Lie;Ding, Bing-Lin
    • 한국항해항만학회:학술대회논문집
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    • 한국항해항만학회 2001년도 Proceeding of KIN-CIN Joint Symposium 2001 on Satellite Navigation/AIS, lntelligence , Computer Based Marine Simulation System and VDR
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    • pp.177-186
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    • 2001
  • Based upon the previous experiences and typical oases of typhoon evasion fur ships as well as tile achievement in scientific research in this detrain, we developed the Intelligent Typhoon Evasion System for Ships. It consists of five subsystems, including electronic charts, ship movement management, typhoon information query and automatic plotting, real-time calculation of ship-typhoon situation, intelligent typhoon evasion decision making. With the synthetical application of analogy theory, synoptic chart, satellite cloud picture analysis, typhoon digital forecast and other relevant technologies, we leave established the typhoon evasion data bases. model bases and knowledge bases, which make it possible to automatically track the ships and typhoon paths. The system can realize ship-typhoon situation analysis, risk levee assessment, typhoon paths correction and course synoptic forecast, and intelligent typhoon evasion decision making.

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개인창의성과 집단창의성의 관계에서 통합능력과 지식공유의 매개효과 (Mediating Effects of Integrative Capability and Knowledge Sharing on the Relationship between Individual Creativity and Group Creativity)

  • 김현진;설현도
    • 지식경영연구
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    • 제15권4호
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    • pp.223-247
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    • 2014
  • A large number of tasks being executed by individuals now are in a central requirement of the creative solutions consolidated with associates' multiple skills, knowledge bases and efforts who are capable of entertaining various viewpoints. Followed by such a variation, teams or groups were gradually settled in a major form of the enterprise's creative revelations. However, in spite of the consistent augmentation of team's application, researches of a group's ability that utilizes individual creative competence effectively are now in the excessively insufficient manner. Accordingly, this research is to verify mutual relationship between individual creativity and group creativity, and furthermore, to present integrative capability and knowledge sharing of the group as a distinctive variable to observe the mechanism of how the individual creativity becomes aggregated with the group creativity through a process. As a result, the relationship between the individual creativity and the group creativity was so significant that it showed that the integrative capability and knowledge sharing were mediated in the connection of the two variables. This research contributes to the comprehension of the relationship between individual and group creativity through the role of a group's integrative capability and knowledge sharing. In addition, further research direction with in-depth idea is presented to develop research on creativeness from the practical standpoint implicated in this research.

개체명 인식 코퍼스 생성을 위한 지식베이스 활용 기법 (Automatic Training Corpus Generation Method of Named Entity Recognition Using Knowledge-Bases)

  • 박영민;김예진;강상우;서정연
    • 인지과학
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    • 제27권1호
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    • pp.27-41
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    • 2016
  • 개체명 인식은 미리 정의된 개체 범주로 텍스트의 요소를 분류하는 과정을 의미하며 최근 주목 받고 있는 음성 비서 서비스 등 다양한 응용 분야에 널리 활용되고 있다. 본 논문에서는 지식베이스를 사용하여 개체명 인식 코퍼스를 자동으로 생성하는 방법을 제안한다. 지식베이스의 종류에 따라 두 가지 방법을 적용하며 그 중 첫 번째 방법은 위키피디아를 기반으로 위키피디아 본문의 문장에 개체명 표지를 부착하여 학습 코퍼스를 생성하는 방법이다. 두 번째 방법은 인터넷으로부터 다양한 형태의 문장을 수집하고 다양한 개체들 간의 관계를 데이터베이스에 보유 중인 프리베이스를 이용하여 개체명 표지를 부착하는 방법으로 학습 코퍼스를 생성한다. 자동 생성된 학습 코퍼스의 질과 본 논문에서 제안하는 학습 코퍼스 자동 생성 기법을 평가하기 위해 두 가지로 실험했다. 첫 번째, 다른 형태의 지식베이스인 위키피디아와 프리베이스(Freebase)를 기반으로 생성된 학습 코퍼스의 표지 부착 성능을 수동으로 측정하여 코퍼스의 질을 평가하였다. 두 번째, 각 코퍼스로 학습된 개체명 인식 모델의 성능을 통해 제안하는 학습 코퍼스 자동 생성 기법의 실용성을 평가하였다. 실험을 통해 본 방법이 타당함을 증명하였으며 특히 실제 응용에서 많이 사용되는 웹 데이터 환경에서 의미 있는 성능 향상을 보여주었다.

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생산일정계획을 위한 지식 기반 모의실험 (Knowledge Based Simulation for Production Scheduling)

  • 나태영;김승권;김선욱
    • 대한산업공학회지
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    • 제23권1호
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    • pp.197-213
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    • 1997
  • It is not easy to find a good production schedule which can be used in practice. Therefore, production scheduling simulation with a simple dispatching rule or a set of dispatching rules is used. However, a simple dispatching rule may not create a robust schedule, for the same rule is blindly applied to all internal production processes. The presumption is that there might be a specific combination of appropriate rules that can improve the efficiency of a total production system for a certain type of orders. In order to acquire a better set of dispatching rules, simulation is used to examine the performance of various combinations of dispatching rule sets. There are innumerable combination of rule sets. Hence it takes too much computer simulation time to find a robust set of dispatching rule for a specific production system. Therefore, we propose a concept of the knowledge based simulation to circumvent the problem. The knowledge based simulation consists of knowledge bases, an inference engine and a simulator. The knowledge base is made of rule sets that is extracted from both simulation and human intuition obtained by the simulation studies. For a certain type of orders, the proposed system provides several sets of dispatching rules that are expected to generate better results. Then the scheduler tries to find the best by simulating all proposed set of rules with the simulator. The knowledge-based simulator armed with the acquired knowledge has produced improved solutions in terms of time and scheduling performance.

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신경회로망 구조를 가진 적응퍼지제어기의 구축 (Construction of Adaptive Fuzzy Controller with Neural Network Architecture)

  • 홍윤광;조성원
    • 한국지능시스템학회:학술대회논문집
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    • 한국퍼지및지능시스템학회 1996년도 추계학술대회 학술발표 논문집
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    • pp.249-252
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    • 1996
  • Fuzzy logic has been successfully used for nonlinear control systems. However, when the plant is complex or expert knowledge is not available, it is difficult to construct the rule bases of fuzzy systems. In this paper, we propose a new method of how to construct automatically the rule bases using fuzzy neural network. Whereas the conventional methods need the training data representing input-output relationship, the proposed algorithm utilizes the gradient of the object function for the construction of fuzzy rules and the tuning of membership functions. Experimental results with the inverted pendulum show the superiority of the proposed method in comparison to the conventional fuzzy controller.

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Japanese Policy and Programs for the Fostering of Global Entrepreneurs

  • Kim, Eunyoung
    • STI Policy Review
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    • 제7권1호
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    • pp.40-65
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    • 2016
  • Knowledge plays a more important role in promoting entrepreneurship in the current information-led society than it did during the age of industrialization. Many recent studies found that entrepreneurship stimulates and generates innovation and economic growth. In response to the issues of long-term low growth, the Japanese government implemented several policies to encourage universities initiate entrepreneurial activities. This paper examines Japanese policies since 2014 that support universities in providing various programs for developing global entrepreneurs. Thirteen academic institutes were beneficiaries of three-year funding since the fiscal year of 2014. Each university designed its own educational programs according to their own contexts, built various forms of innovation ecosystems with domestic as well as international partner organizations, and offered entrepreneurship training courses or innovation workshops for companies to sustain its programs through broadening their funding bases. Due to the interdisciplinary nature and short history in operating the programs so far, it is difficult to evaluate the effectiveness of the programs. However, each participating university accumulated knowledge and experience while carrying out their various programs, suggesting important new directions for policymakers and education program designers in facilitating entrepreneurship and innovation.