• Title/Summary/Keyword: knowledge construction

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Theoretical Discussion on Mathematical Knowledge for Teaching from Constructivists' Perspective

  • LEE, Soo Jin;SHIN, Jaehong
    • Research in Mathematical Education
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    • v.19 no.2
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    • pp.101-115
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    • 2015
  • In the present paper, we argue any research concerning human knowledge construction, components, or types needs to clarify its epistemological stance regarding 'knowledge' in that such viewpoint might have much influence on the nature of knowledge the researcher sees and the way in which evidence for knowledge development is gathered. Thus, we suggest two alternative research groups who conducted their studies on mathematical knowledge for teaching with an explicit epistemological standpoint. We finalize our discussion by reviewing concrete examples in the previous literature on teacher knowledge of fraction conducted by the two groups.

Design and Construction of a NLP Based Knowledge Extraction Methodology in the Medical Domain Applied to Clinical Information

  • Moreno, Denis Cedeno;Vargas-Lombardo, Miguel
    • Healthcare Informatics Research
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    • v.24 no.4
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    • pp.376-380
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    • 2018
  • Objectives: This research presents the design and development of a software architecture using natural language processing tools and the use of an ontology of knowledge as a knowledge base. Methods: The software extracts, manages and represents the knowledge of a text in natural language. A corpus of more than 200 medical domain documents from the general medicine and palliative care areas was validated, demonstrating relevant knowledge elements for physicians. Results: Indicators for precision, recall and F-measure were applied. An ontology was created called the knowledge elements of the medical domain to manipulate patient information, which can be read or accessed from any other software platform. Conclusions: The developed software architecture extracts the medical knowledge of the clinical histories of patients from two different corpora. The architecture was validated using the metrics of information extraction systems.

A Scheme for discriminating Construction IETM from existing systems (건설분야 전자매뉴얼(IETM) 특성화 방안)

  • Jeong, Jin-Wook;Park, Moon-Seo;Lee, Hyun-Su;Ji, Se-Hyun
    • Proceedings of the Korean Institute Of Construction Engineering and Management
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    • 2008.11a
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    • pp.698-701
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    • 2008
  • IETM(Interactive Electronic Technical Manual) has been introduced to construction industry recently, It is regarded as a useful tool for handling the data, procedures of the construction, but it can be similar to existing If-based systems, the PMIS (Project Management Information System) and the KMS(Knowledge Management System), without characterizing. This research is intended to investigate ITEM's basic concept, and to present the scheme discriminating Construction IETM from existing systems.

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MODELING THE TECHNOLOGY TRANSFER PROCESS IN THE THAI CONSTRUCTION INDUSTRY: A PILOT STUDY

  • Tanut Waroonkun;Rodney A. Stewart;Sherif Mohamed
    • International conference on construction engineering and project management
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    • 2005.10a
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    • pp.845-848
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    • 2005
  • Technology transfer (TT) has been defined as the shared responsibility between the source and the destination for ensuring that technology is accepted and at least understood by someone with the knowledge and resources to apply and/or use the technology. The adoption of TT in construction industries is necessary for economic growth to occur in developing countries such as Thailand. This process should provide numerous benefits for the host sector in areas such as increased productivity, enhancement of product quality, cost savings, improvements in market share and entry to new markets. However, there are many factors, which may impact on the TT process and its subsequent outcomes for Thai construction firms and individuals, including, the transfer environment, learning environment, transferor characteristics and transferee characteristics. The performance and interaction of these enablers will influence the degree of value added to the local construction sectors in areas such as economic advancement, knowledge advancement and project performance. This paper presents a conceptual framework for international TT that accommodates the numerous factors believed to impact on the processes effectiveness. Through a Pilot Study, where 27 industry professionals from Thailand were interviewed, the significant factors which impact on the TT process have been identified along with the strength of interrelationship between individual and groups of factors. Future research seeks to target a greater sample of respondents with the view to validate the conceptual model and apply it on a number of large Thai projects where international TT was incorporated into the project agreement.

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Performance of Mature and Matriculation Entry Students Studying Towards the National Diploma in Building at the University of Johannesburg, South Africa

  • Wellington Didibhuku Thwala
    • International conference on construction engineering and project management
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    • 2011.02a
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    • pp.647-652
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    • 2011
  • Developments in the teaching of the National Diploma in Building students should be geared towards meeting the needs of the construction industry in South Africa. These needs are usually in the form of skills and knowledge required to resolve thorny issues encountered in practice. The lack of capacity in the construction industry needs to be addressed from the basis of ensuring that the education system caters for both mature entry and matriculation entry students. The paper looks at a comparison in performance between mature entry and matriculation (just finish High School) entry students focusing on the National Diploma in Building students at the University of Johannesburg. The paper will make a comparison between those students who work first before enrolling for their first year National Diploma in Building and those who are directly from high school. Cooperative education involves training and systematically developing students through the acquisition of the requisite skills, attitudes, values and knowledge required to adequately perform in their chosen careers. The paper describes the problems and experiences that have been encountered by both mature and matriculation entry students in their three years of study which affects their performance. The paper will then look at the value of prior experience in enabling students to finish their National Diploma in Building within a three year period. The paper closes with some recommendations for the future.

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Dynamic Knowledge Map and RDB-based Knowledge Conceptualization in Medical Arena (동적지식도와 관계형 데이터베이스 기반의 의료영역 지식 개념화)

  • Kim, Jin-Sung
    • Proceedings of the Korean Institute of Intelligent Systems Conference
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    • 2004.04a
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    • pp.111-114
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    • 2004
  • Management of human knowledge is an interesting concept that has attracted the attention of philosophers for thousands of years. Artificial intelligence and knowledge engineering has provided some degree of rigor to the study of knowledge systems and expert systems(ES) re able to use knowledge to solve the problems and answer questions. Therefore, the process of conceptualization and inference of knowledge are fundamental problem solving activities and hence, are essential activities for solving the problem of software ES construction Especially, the access to relevant, up-to-date and reliable knowledge is very important task in the daily work of physicians and nurses. In this study, we propose the conceptualization and inference mechanism for implicit knowledge management in medical diagnosis area. To this purpose, we combined the dynamic knowledge map(KM) and relational database(RDB) into a dynamic knowledge map(DKM). A graphical user-interface of DKM allows the conceptualization of the implicit knowledge of medical experts. After the conceptualization of implicit knowledge, we developed an RDB-based inference mechanism and prototype software ES to access and retrieve the implicit knowledge stored in RDB. Our proposed system allows the fast comfortable access to relevant knowledge fitting to the demands of the current task.

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An Investigative Study on the Impact of Construction Policies on Market Entry and Exit of Construction Companies in Daegu and Gyeongbuk Province (건설정책이 대구·경북지역 건설기업의 시장 진입과 퇴출에 준 영향에 관한 조사연구)

  • Song, Jin-Hyang;Lee, Yoonseock
    • Knowledge Management Research
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    • v.24 no.2
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    • pp.211-240
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    • 2023
  • The purpose of this study is to analyze empirically the effects of changes in policies of the construction industry on the entry and exit in the construction industry and to present the direction of changes in construction industry policies based on the analysis results. The purpose of this study is also to present by analyzing the factors influencing the increase and decrease of builders in the actual construction market. The results of the survey indicate that for general contractors in Daegu and Gyeongbuk, which are mostly small and medium-sized construction companies, the strengthening of registration standards (capital, technicians, etc.) has a significant impact on market entry and exit. However, on the other hand, many of the construction policies implemented to eliminate unqualified contractors in the construction market have had the effect of increasing the number of unqualified contractors. This suggests that construction policies in the construction cycle have not achieved their objectives.

Identifying the Usefulness of Weblog Genre Analysis in Organizational knowledge Creation: A Social Construction of Technology Perspective (조직내 지식창출을 위한 웹블로그 장르분석의 유용성 발굴: 기술의 사회구성론적 관점)

  • Park, Ji-Hong
    • Journal of the Korean Society for information Management
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    • v.25 no.1
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    • pp.5-17
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    • 2008
  • The purpose of this paper is to identify the usefulness of Weblog genre analysis in knowledge creation within an organization where communications are occurred frequently among the employees with information and communication technologies (ICTs). Knowledge creation is essential to achieve competitive advantage in today's knowledge-oriented working environments. There has been huge investment on knowledge management systems to achieve such advantages. It is, however, widely recognized that distributed knowledge management systems often fail due to the different social contexts across the sub-organizations where the local information systems are deployed. It is important to coordinate such social gaps across the sub-organizations to achieve better advantages. Given that Weblogs users often feel a shared social norm. Weblogs playa positive role of narrowing the social gaps. This paper argues that the genre analysis of Web logs could provide important clues to narrow the social gaps existed across the sub-organizations within an organization. Hence, such taxonomical practice may be a solution for the high rate of failure in knowledge management system implementations in an organization. This paper uses the theory of organizational knowledge creation (Nonaka & Takeuchi. 1995) and social construction of technology (SCOT) approach (Bijker, 1995) to compare the socialized with the non-socialized integration of distributed information systems. The findings of this research provide a useful framework for better implementing knowledge management practices especially in distributed working environments.

An empirical analysis based on organizational members' perceptions about the effects of antecedents to the external knowledge network on product and service innovations : on the basis of the open innovation perspective (조직 구성원들이 인식하는 자사의 외부 지식 네트워크 구축의 선행요인들이 제품 및 서비스 혁신에 미치는 영향에 관한 실증분석 : 개방형 혁신의 관점을 기반으로)

  • Hau, Yong Sauk;Kang, Minhyung
    • Knowledge Management Research
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    • v.14 no.3
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    • pp.87-100
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    • 2013
  • As the external knowledge networks of firms have become more and more important to their product and service innovations, many global leading companies such as P & G, IBM, and Samsung Electronics have formulated and implemented their open innovation strategy. This study attempts to empirically analyze the effects of CEOs' supports for external knowledge networks, external knowledge network-oriented cultures and inter-organizational knowledge management systems as the major antecedents to external knowledge networks by using the data based on organizational members' perceptions about them. Based on 847 samples collected from employees in three companies in the medical, the construction and the IT service industries, this study performed a structural equation modeling (SEM) analysis about the effects of the antecedents to the external knowledge networks on product and service innovations through Partial Least Squares (PLS). The empirical findings of this study show that CEOs' supports for external knowledge network positively influence product and service innovations, partially mediated by external knowledge network-oriented cultures and inter-organizational knowledge management systems. And they also show that external knowledge network-oriented cultures and inter-organizational knowledge management systems have a positive effect on product and service innovations, respectively, partially mediated by external knowledge networks. With these new findings, academic and practical implications are discussed.

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A CONSTRUCTION METHOD OF MULTIPLE CONTROL SYSTEMS USING PARTIAL KNOWLEDGE UPON SYSTEM DYNAMICS

  • Yoshisara, Ikuo;Indaba, Masaaki;Aoyama, Tomoo;Yasunaga, Moritoshi
    • 제어로봇시스템학회:학술대회논문집
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    • 1999.10a
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    • pp.73-78
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    • 1999
  • This paper presents an effective construction method of adaptive multiple control systems utilizing some knowledge upon the plants. The adaptive multiple control system operates plants un-der widely changing environmental conditions. The adaptive multiple control system is composed of a family of candidate controllers together with a supervisor. The system does not require any identification schemes of environmental conditions. Monitoring outputs of the plant, the supervisor switches from one candidate controller to another, The basic ideas of adaptation are as follows: (1)each candidate controller is prepared for each environmental condition in advance; (2)the supervise. applies a sequence of speculative controls to the plant with candidate controllers just after the start of control or just after the detection of a change in the environmental condition. Each candidate controller can keep the system stable during one-step period of the speculative control and the most appropriate candidate controller for the environmental condition to which the system is exposed can be selected before the last trial of speculative control step comes to an end. We proposed a construction method of adaptive multiple control system without any knowledge of plant dynamics and applied the method to a cart-pole balancing problem and a vehicle anti skid braking system. In real applications, as we can often easily obtain a piece of knowledge upon plant dynamics beforehand, we intend to extend the method such that multiple control systems can be efficiently designed using the knowledge. We apply the new idea to the cart-pole balancing problem with variable length of the pole. The simulation experiments lead us to the conclusion that the new attempt can reduce the manpower to design the candidate controllers for adaptive multiple control systems.

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