• Title/Summary/Keyword: 지식표상

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User modeling agent using natural language interface for information retrieval in WWW (자연언어 대화 Interface를 이용한 정보검색 (WWW)에 있어서 사용자 모델 에이젼트)

  • Kim, Do-Wan;Park, Jae-Deuk;Park, Dong-In
    • Annual Conference on Human and Language Technology
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    • 1996.10a
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    • pp.75-84
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    • 1996
  • 인간의 가장 자연스러운 통신 수단은 자연언어이다. 본 논문에서는 자연언어 대화체를 사용한 인터네트 상에서의 정보 검색에 있어서 사용자 모델링 에이젼트 (User modeling Agent or User modeling system)의 모델 형성 기술 및 그의 역할을 서술하고 있다. 사용자 모델은 인간의 심성 모델 (Mental model)에 해당하며, 심성 모델이 사용자가 시스템에 대한 지식과 자신의 문제상황 또는 주변환경에 대하여 가지는 모델임에 반하여, 사용자 모델은 시스템이 사용자의 지식 및 문제 상황을 표상(Representation)하여 형성한 사용자에 대한 모델이다. 따라서 사용자 모델은 시스템의 지능적인 Human Computer Interaction (HCI)의 지원을 위하여 필수적이다. 본 논문에서는 사용자 모델 형성 기술 및 지능형 대화 모델의 지원을 위한 시스템 실례로써 사용자 모델 형성 시스템 $BGP-MS^2$ 와 사용자 모델의 형성을 위하여 구축된 지식베이스 구조를 설명하고 있다.

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Public Image of Rapists and its Comparison with their Characteristics on the National Statistics (사람들이 생각하는 강간 범죄자의 표상: 실제 국내 강간 범죄자와의 비교를 중심으로)

  • Park, Ji-Sun;Park, In-Sun
    • The Journal of the Korea Contents Association
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    • v.11 no.9
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    • pp.362-371
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    • 2011
  • We often find that we, as a social group, share stereotypes of criminals. For the present study we investigated the stereotypes of rapists, and examined if they match their characteristics on the national crime statistics in Korea. Collecting data from 82 college students and 91 police officers, we compared stereotypes about rapists with the characteristics of those reported on the national crime statistics. As a result, we found that both college students and police officers have distorted stereotypes of rapists which are not consistent with their characteristics. More specifically, both college students and police officers believed that rapists came from broken families and that they were likely to have more previous criminal convictions than they actually did. In addition, both college students and police officers believed that rapists tended to recidivate within a short period of time, e.g. 1-3 months, which is much shorter than the time that actually took for them to recidivate. Finally, suggestions for future research were made.

A Study on Middle School Students' Problem Solving Processes for Scientific Graph Construction (중학생의 과학 그래프 구성에 관한 문제 해결 과정 연구)

  • Lee, Jaewon;Park, Gayoung;Noh, Taehee
    • Journal of The Korean Association For Science Education
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    • v.39 no.5
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    • pp.655-668
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    • 2019
  • In this study, we investigated the middle school students' processes of scientific graph construction from the perspective of the problem solving process. Ten 9th graders participated in this study. They constructed a scientific graph based on pictorial data depicting precipitation reaction. The think-aloud method was used in order to investigate their thinking processes deeply. Their activities were videotaped, and semi-structured interviews were also conducted. The analysis of the results revealed that their processes of scientific graph construction could be classified into four types according to the problem solving strategy and the level of representations utilized. Students using the structural strategy succeeded in constructing scientific graph regardless of the level of representation utilized, by analyzing the data and identifying the trend based on the propositional knowledge about the target concept of the graph. Students of random strategy-higher order representation type were able to succeed in constructing scientific graph by systematically analyzing the characteristics of the data using various representations, and considering the meaning of the graph constructed in terms of the scientific context. On the other hand, students of random strategy-lower order representation type failed to construct correct scientific graph by constructing graph in a way of simply connecting points, and checking the processes of graph construction only without considering the scientific context. On the bases of the results, effective methods for improving students' ability to construct scientific graphs are discussed.

Entry Point of a Knowledge-based Economy through Job-group Analysis (직업군 분석을 통한 지식기반경제로의 진입 시점에 대한 연구)

  • Kim, Hee-chel;Moon, Yeong-ho
    • Journal of Korea Technology Innovation Society
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    • v.18 no.2
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    • pp.338-357
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    • 2015
  • The purpose of this study is to present an objective basis for the entry point of a knowledge-based economy, that is used by quantitative analysis to serve as 'The Result of Wage Structure Survey' and 'Sample Design for Survey Report on Labor Conditions by Employment Type' of the Ministry of Employment & Labor. Entry criteria for a knowledge-based society, through the definition of a Bell and Toffler, was defined by the number of information workers more than the number of physical workers, and the information workers were classified by knowledge workers. To redefine the definition of Porat's typology of information workers, Korea Standard Classification of Occupation is classified by the job of knowledge, service, industry and agriculture. The result of the analysis is appeared the entry point of a knowledge-based economy by workers structural changes and annual wage structure changes has identified empirically-year 1980 the United States more than 20 years later in 2000. In addition, the economic contribution of knowledge occupation was confirmed to be the biggest by measuring the economic contribution of occupation classification in the knowledge society.

The Effects of Mathematical Problem Solving depending on Analogical Conditions (유추 조건에 따른 수학적 문제 해결 효과)

  • Ban, Eun-Seob;Shin, Jae-Hong
    • Journal of the Korean School Mathematics Society
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    • v.15 no.3
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    • pp.535-563
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    • 2012
  • This study was conducted to confirm the necessity of analogical thinking and to empirically verify the effectiveness of analogical reasoning through the visual representation by analyzing the factors of problem solving depending on analogical conditions. Four conditions (a visual representation mapping condition, a conceptual mapping condition, a retrieval hint condition and no hint condition) were set up for the above purpose and 80 twelfth-grade students from C high-School in Cheong-Ju, Chung-Buk participated in the present study as subjects. They solved the same mathematical problem about sequence of complex numbers in their differed process requirements for analogical transfer. The problem solving rates for each condition were analyzed by Chi-square analysis using SPSS 12.0 program. The results of this study indicate that retrieval of base knowledge is restricted when participants do not use analogy intentionally in problem solving and the mapping of the base and target concepts through the visual representation would be closely related to successful analogical transfer. As the results of this study offer, analogical thinking is necessary while solving mathematical problems and it supports empirically the conclusion that recognition of the relational similarity between base and target concepts by the aid of visual representation is closely associated with successful problem solving.

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An Analysis of Earth System Understandings (ESU) of 8th-grade Students' Imagery about 'the Earth' Represented by Words and Drawings (단어와 그림으로 표현된 8학년 학생들의 '지구'에 대한 심상에서 나타난 지구계 이해 분석)

  • Oh, Hyun-Seok;Kim, Chan-Jong
    • Journal of the Korean earth science society
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    • v.31 no.1
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    • pp.71-87
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    • 2010
  • The purpose of this study was to explore 8th-grade students' imageries of the Earth. We analyzed the middle school students' imageries about the Earth represented with words and drawings in Earth Systems Understanding (ESU, hereafter) framework. The students' imageries about 'the Earth' are vary by their experiences and prior-knowledge, which significantly impacts their imagery construction. Especially, the students' ESU were characterized into two aspects: One is a macroscopic view point based on full-objects of the Earth by indirect experiences and the other is everyday view point based on scene of the Earth surface and environment by direct experiences. Results revealed students' imageries about the Earth were impacted by visual experiences and those students' ESU were more represented by drawing as visual imagery than by words, formal language. The negative imageries were mainly represented through interactions of the Earth subsystems.

Russia Represented the Novel of Dae Hun Ham before and after the Liberation (해방전후 함대훈 소설에 나타난 '러시아' 표상 연구)

  • Kang, Yong-Hoon
    • Cross-Cultural Studies
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    • v.44
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    • pp.87-121
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    • 2016
  • Daehoon Ham's novel 'Cheongchunbo' features a studier as the main character who majored in Russian literature and admired the culture of the Soviet Union. From his viewpoint, the novel reproduces North Korean society before and after its independence from Japan. In this regard, it shows multilayered presence related to Russian culture and Soviet Russia. Such an aspect is based on the sense of sympathy that the main character has. The sense of sympathy is originated from the main character's admiration for the exoticism of Soviet culture which was forbidden during the late Japanese occupation. After Korea's independence from Japan, Russian was replaced by English. Such change also occurred in the main character's viewpoint. He underwent a change in his integrative viewpoint on Russian and Soviet under the name of Red Army. After defecting to South Korea, he began to put Russia down as a den possessed by the devil called 'communism.' In the meantime, Russia and Soviet have been separated from each other in ideological terms. The novel 'Cheongchunbo' stresses that the decisive cause of such changes is argued over trusteeship. The main character, fascinated by the presence of exotic Soviet, predicates that Soviet is a political symbol around the national division caused by the trusteeship. His change alluded to the life path of Korean authors who translated Russian literature after independence. During the Japanese occupation, Russian literature translated into Korea was a longing for forbiddance and admiration for Russia. However, the Russia presented in Daehoon Ham's novel before and after independence implies that the romantic translation has ended.

Characteristics of Pre-service Teachers' PCK in the Activities of Content Representation of Boiling Point Elevation (끓는점 오름에 대한 내용표상화(Content Representation) 활동에서 나타난 예비교사의 PCK 특징)

  • Lee, Young Min;Hur, Chinhyu
    • Journal of The Korean Association For Science Education
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    • v.33 no.7
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    • pp.1385-1402
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    • 2013
  • This study analyzes pre-service teachers' PCK dealing with visualization of the contents related to boiling point elevation and teaching methods in mock-lessons. As a result of analyzing pre-service teachers' knowledge based on PCK factors, most of the pre-service teachers accentuated on understanding boiling point elevation conceptually, whereas some of the others inclined to make students understand boiling point elevation in a scientific way, let the kids use numerical formulas to describe the concept, and motivate them to learn through the examples in real life. The pre-service teachers represented majority of the important facts of boiling point elevation as the knowledge required to understand things conceptually. However, they did not focus on improving the scientific thinking and inquiring levels of the students. Also, the pre-service teachers tended to teach at the level and order of the textbook. In some other cases, they considered the vocabularies and materials in the textbook (which could have been highlighted in the editing sequence) as the main topic to learn, or regarded the goal as giving students the ability to solve exercises in the textbook. It turned out that the pre-service teachers had a low level of knowledge of their students. It is recommended that they should make use of the materials given (such as data related to the misconception of students) during the training session. The knowledge of teaching and evaluating students was described superficially by the pre-service teachers; they merely mentioned the applications of models, such as the cyclic model and discovery learning, rather than thinking of a method related to the goals, or listed general assessment methods.

The Effects of Creating a Cooking Activity by Applying Recipe Development on Young Children's Creativity and Nutrition Knowledge (레시피 개발을 적용한 요리활동이 유아의 창의성 및 영양지식에 미치는 영향)

  • Kim, Rae-Eun;Hong, Soon-Ock;Kim, Myung-Hee
    • Journal of Convergence for Information Technology
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    • v.9 no.7
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    • pp.122-134
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    • 2019
  • The purpose of this research is to analyze the effect on children's creativity and nutrition knowledge of cooking activities by applying recipe development. The procedure consists 7 steps which are diagnosing a necessity, setting a basic direction, setting ingredients and topics of the activity, designing some models of the activity, designing some developed activity, lastly completing the creative cooking activity. The model of this activities consists 5 steps which are exploring the ingredients, creating a recipe, practising the activities, representing the activities, lastly evaluation the activities. Participants were 36 children who are 4 to 5 years old from K daycare center located in Busan. The results exhibited that creativity and nutrition knowledge of experimental group is significantly higher than comparative group. The creative cooking activity by applying recipe development is effective for advancing in creativity and getting nutrition knowledge of children.