• Title/Summary/Keyword: Knowledge-based design

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Toward Knowledge-Aided Design & Manufacturing (KAD/KAM)

  • Lee, Kyung-Ho
    • Journal of Ship and Ocean Technology
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    • v.12 no.1
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    • pp.28-34
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    • 2008
  • The purpose of this paper is to define the concept of KAD/KAM, furthermore is to establish my own idea on the knowledge related works in engineering domain for a next decade ahead. KAD/KAM is represented as "Knowledge Everywhere" based on the concept of ubiquitous computing in engineering domain. At the beginning of the paper, the definition of KAD/KAM is described. And the related technologies to realize KAD/KAM, such as augmented reality, ontology, data mining, and knowledge management, are introduced. The concept of KAD/KAM is still immature. But this will be a new paradigm to change entire engineering environment in near future.

Design of Markov Decision Process Based Dialogue Manager (마르코프 의사결정 과정에 기반한 대화 관리자 설계)

  • Choi, Joon-Ki;Eun, Ji-Hyun;Chang, Du-Seong;Kim, Hyun-Jeong;Koo, Myong-Wan
    • Proceedings of the KSPS conference
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    • 2006.11a
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    • pp.14-18
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    • 2006
  • The role of dialogue manager is to select proper actions based on observed environment and inferred user intention. This paper presents stochastic model for dialogue manager based on Markov decision process. To build a mixed initiative dialogue manager, we used accumulated user utterance, previous act of dialogue manager, and domain dependent knowledge as the input to the MDP. We also used dialogue corpus to train the automatically optimized policy of MDP with reinforcement learning algorithm. The states which have unique and intuitive actions were removed from the design of MDP by using the domain knowledge. The design of dialogue manager included the usage of natural language understanding and response generator to build short message based remote control of home networked appliances.

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Design of Fuzzy Controller Based on Empirical Knowledge (실험적 지식에 기초한 퍼지제어기 설계)

  • Bae, Hyeon;Kim, Sung-Shin;Kim, Hae-Gyun
    • Proceedings of the KIEE Conference
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    • 2000.07d
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    • pp.2296-2298
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    • 2000
  • Fuzzy control has been researched for application of industrial processes which have no accurate mathematical model and could not controlled by conventional methods because of a lack of quantitative input-output data. Intelligent control approach based on fuzzy logic could directly reflex human thinking and natural language to controller comparing with conventional methods. In this paper, fuzzy controller is implemented to acquire operator's knowledge. The tested system is constructed for sending a ball to the goal position using wind from two DC motors in the path. This system contains non-linearity and uncertainty because of the characteristic of aerodynamics inside the path. Ball position is measured by a vision camera. The system used in this experiment could be hardly modeled by mathematic methods and could not be easily controlled by linear control manners. The controller, in this paper is designed based on the input-output data and experimental knowledge obtained by trials.

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Development of a knowledge-based medical expert system to infer supportive treatment suggestions for pediatric patients

  • Ertugrul, Duygu Celik;Ulusoy, Ali Hakan
    • ETRI Journal
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    • v.41 no.4
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    • pp.515-527
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    • 2019
  • This paper discusses the design, implementation, and potential use of an ontology-based mobile pediatric consultation and monitoring system, which is a smart healthcare expert system for pediatric patients. The proposed system provides remote consultation and monitoring of pediatric patients during their illness at places distant from medical service areas. The system not only shares instant medical data with a pediatrician but also examines the data as a smart medical assistant to detect any emergency situation. In addition, it uses an inference engine to infer instant suggestions for performing certain initial medical treatment steps when necessary. The applied methodologies and main technical contributions have three aspects: (a) pediatric consultation and monitoring ontology, (b) semantic Web rule knowledge base, and (c) inference engine. Two case studies with real pediatric patients are provided and discussed. The reported results of the applied case studies are promising, and they demonstrate the applicability, effectiveness, and efficiency of the proposed approach.

Exploring American Indian Students' Problem-Solving Propensity in the Context of Culturally Relevant STEM Topics (문화 반영적 융합교육(STEM) 주제 상황에서 미국 토착민 학생들의 문제 해결 성향에 대한 탐색)

  • Kim, Young-Rae;Nam, Youn-Kyeong
    • Journal of the Korean Society of Earth Science Education
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    • v.10 no.1
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    • pp.1-16
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    • 2017
  • This study presents an out-of-school problem-solving lesson we designed for American Indian students using a culturally relevant STEM topic. The lesson was titled "Shelter Design for Severe Weather Conditions." This shelter design lesson was developed based on an engineering design allowing us to integrate STEM topics within a traditional indigenous house-building context. This problem context was used to encourage students to apply their prior knowledge, experience, and community/cultural practice to solve problems. We implemented the lesson at a summer program on an American Indian reservation. Using the lesson, this study explores how American Indian students use cultural knowledge and experience to solve a STEM problem. We collected student data through pre- and post-STEM content knowledge tests, drawings and explanations of shelter models on the students' group worksheets, and classroom observations. We used interpretive and inductive methods to analyze the data. This study demonstrates that our culturally relevant, STEM problem-solving lesson helped the American Indian students solve a complex, real-world problem. This study examines how students' prior experiences and cultural knowledge affect their problem-solving strategies. Our findings have implications for further research on designing problem-solving lessons with culturally relevant STEM topics for students from historically marginalized populations.

Investigation on the 3-D design guidelines of structures (구조물의 3차원 설계 패러다임을 위한 지침에 대한 고찰)

  • Shim, Chang-Su;Kim, Yong-Han;Jeon, Seung-Min;Kwak, Tae-Young
    • Proceedings of the Computational Structural Engineering Institute Conference
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    • 2007.04a
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    • pp.301-306
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    • 2007
  • Design of civil infrastructures is generally based on 2-D drawings and analyses. Design provisions also specify the limit states using member based equations. Most construction projects are done through collaboration of engineers who have different specialized knowledge. Information technologies can dramatically enhance the performance of the collaboration. For the information transfer, we need a mediator between engineers. Object based 3-D models are useful for the communication and for the owners who have to maintain whole the information of infrastructures. In this paper, basic guidelines for the 3-D design according to design phases. Adequate interoperability of 3-D objects from any CAD system is essential for the collaboration. Owners, contractors and design consultants were considered as users of 3-D objects. Cost and performance of each design phases was investigated through the existing data.

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Investigation of a management framework for condition assessment of concrete structures based on reusable knowledge and inspection

  • Moodi, Faramarz
    • Computers and Concrete
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    • v.7 no.3
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    • pp.249-269
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    • 2010
  • Managing and reusing knowledge in engineering and construction sectors can lead to greater competitive advantage, improved designs, and more effective management of constructed facilities. The use of Information Technology (IT) in design and construction can exploit strategic opportunities for new ways of integration, sharing and facilitating information and knowledge in any field of engineering. The integrating of separate areas of IT can be used to bring a group of experts and specialists in any field of engineering closer together by allowing them to communicate and exchange information and expertise that facilitate knowledge capture, sharing, and reuse. A lack of an advisory management system and a need to marshal all available data in a common format has indicated the need for an integrated engineering computing environment to investigate concrete repair problems. The research described in this paper is based upon an evaluation management system (EMS) which comprising a database management system (REPCON) alongside visualisation technologies and evaluation system (ECON) is developed to produce an innovative platform which will facilitate and encourage the development of knowledge in educational, evolution and evaluation modes of concrete repair. This allows us to create assessment procedures that will allow the current condition of the concrete structure and its components to be expressed numerically using a confidence level (CL) so as to take the best course of action in the repair and maintenance management. The explained rating system, which is related to structural integrity and serviceability of the structure, allows the confidence level to be determined by visual inspection and the descriptive information and pictures taken from an available REPair of CONcrete (REPCON) database.

A Study on the Knowledge-Based System for Automaic Abstracting (자동 초록을 위한 지식 기반 시스템 설계에 관한 연구)

  • 최인숙
    • Journal of the Korean Society for information Management
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    • v.6 no.1
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    • pp.93-117
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    • 1989
  • The objective of this study is to design an automatic abstracting system through the analysis of natural language texts. For this purpose a knowledge-based system operating on the basis of domain knowledge was developed. The procedure of generating an abstract consists of three steps: (1) A knowledge-base containing domain knowledge necessary to understand a text is constructed using frame and semantic network structures,and preliminary abstracts are prepared for various cases. (2) Input text is analysed on the basis of domain knowledge in order to extract information filling slots of the abstract with. (3) A Preliminary abstract corresponding to the input text is called and filled with the information, completing the abstract.

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A Study on the Conceptual Modeling and Implementation of a Semantic Search System (시맨틱 검색 시스템의 개념적 모형화와 그 구현에 대한 연구)

  • Hana, Dong-Il;Kwonb, Hyeong-In;Chong, Hak-Jin
    • Journal of Intelligence and Information Systems
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    • v.14 no.1
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    • pp.67-84
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    • 2008
  • This paper proposes a design and realization for the semantic search system. The proposed model includes three Architecture Layers of a Semantic Search System ; (they are conceptually named as) the Knowledge Acquisition, the Knowledge Representation and the Knowledge Utilization. Each of these three Layers are designed to interactively work together, so as to maximize the users' information needs. The Knowledge Acquisition Layer includes index and storage of Semantic Metadata from various source of web contents(eg : text, image, multimedia and so on). The Knowledge Representation Layer includes the ontology schema and instance, through the process of semantic search by ontology based query expansion. Finally, the Knowledge Utilization Layer includes the users to search query intuitively, and get its results without the users'knowledge of semantic web language or ontology. So far as the design and the realization of the semantic search site is concerned, the proposedsemantic search system will offer useful implications to the researchers and practitioners so as to improve the research level to the commercial use.

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The Effect of Education on the Knowledge and Attitude toward Child Sexual Abuse in Kindergarten Teachers in Korea (어린이 성폭력 예방 교육이 유치원 교사의 지식 및 태도에 미치는 효과)

  • Bae, Jeong-Iee
    • The Journal of Korean Academic Society of Nursing Education
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    • v.7 no.2
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    • pp.254-263
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    • 2001
  • The Purpose of this study was to find out the effects of education for prevention of sexual abuse (rape, sexual assault, sexual harassment etc.) of children in kindergarten teachers. Incidences of sexual abuse in Korea is ranked 3rd in the world. Sexual abuse of children, particularly, is one of the most serious crimes that affect both the victimized children and their family. The issue related to sexual abuse of children has been ignored, and there is a lack of systematic education to prevent sexual abuse of children either for children or their parents in Korea. Furthermore, lack of knowledge and poor attitude of teachers limit their capability to provide education for sexual abuse prevention to the children. The education for kindergarten teachers may change their knowledge of the sexual abuse and their attitude toward it and improve their capability in helping children. 114 Korean kindergarten teachers participated in this study. Research design was one group pretest-posttest design. The education given to the subjects included 2 hours of lecture. The education program was developed based on a survey. Preschool-aged-children, parents, and teachers were interviewed to reveal their educational needs based on their experiences related to sexual abuse. This program includes such as safety education, crisis management, resource person(s), and phone numbers of available hospital. Data was collected before and after the education was given to the subjects, to assess their knowledge and attitude toward child sexual abuse. Two instruments were used in this study. Using Cronbach's ALPHA validity and reliability of 2 instruments were tested. The analysis of the data was done with Window SPSS 10.0 for descriptive statistics, t-test and ANOVA. The results of this analysis were as follows : 1. After education, the score of kindergarten teachers knowledge was higher than before (t=-4.409, p=0.002). 2. After education, the score of kindergarten teachers attitude was higher than before (t=3.065, p=0.003). The findings from this study will provide an intervention strategy for prevention of sexual abuse in children.

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