• Journal of KIISE:Software and Applications
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• v.29 no.8
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• pp.584-594
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• 2002

In information retrieval or digital library, one of the most important factors is to find out the exact information which users need. In this paper, we present an efficient index term extraction method which makes it possible to guess the content of documents and get the information more exactly. To find out index terms in a document, we use lexical chains. Before generating lexical chains, we roughly disambiguate the senses of nouns in a document using specific concept, called semantic window. Semantic window is that we look ahead semantic relations of peripheral nouns and disambiguate the senses of nouns. After generating lexical chains with sense-disambiguated nouns, we find out strong chains by some metrics and extract index terms from a few strong chains. We evaluated our system, using results of a key phrase extraction system, KEA. This system works in general domains of documents Including Information Retrieval and Digital Library.

• Science of Emotion and Sensibility
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• v.23 no.1
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• pp.69-78
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• 2020

This study compares and analyzes user experiences of intelligent personal assistant services based on the evaluation criteria of human-computer interaction to explore positive elements of user experiences and factors that could be improved. The research was conducted on Apple's Siri, Google's Google Associate, and Samsung's Bixby, which is presently the smartest personal assistant service on the market. The research method was to compare and analyze the concepts and characteristics of the current services through a literature review and by interviewing seven UI/UX design experts for the second 2 weeks using contextual inquiry. The interview reorganized Peter Morville's user experience honeycomb, reducing his seven usability principles down to five, asking questions about usability, convenience, visual attractiveness, reliability, and satisfaction. On the basis of the reconfigured usability principle, the assessment was conducted on the basis of the assessment timing and the system usability scale. This study is meaningful in that it analyzed the user experience of artificial intelligence personal assistant services both quantitatively and qualitatively.

• Spatial Information Research
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• v.22 no.6
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• pp.55-65
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• 2014

By combining the role of current GIS technology and design behaviors from the cognitive perspective, spatial conceptualization can be extended efficiently and creatively for ill-structured problems. This study elaborates the model of a conceptualization-oriented SDSS(Spatial Decision Support System) for a landscape design problem. Current information-oriented GIS technology plays a minor role in planning and design. The three attributes in planning and design problems describe how the deficiencies of current GIS technology can be seen as a failure of the technology. These are summarized: (1) Information Explosion/Information Ignorance (2) Dilemma of Rigor and Relevance (3) Ill-structured Nature of planning and Design. In order to implement the conceptualization idea in the current GIS environment, it will be necessary to shift from traditional, information-oriented GISs to conceptualization-oriented SDSSs. The conceptualization-oriented SDSS model reflects the key elements of six important theories and techniques. The six useful theories and techniques are as follows; (1) Human Information Processing (2) Tool/Theory Interaction (3) The Sciences of the Artificial and Epistemology of Practice (4) Decision Support Systems (DSSs) (5) Human-Computer Interaction (HCI) (6) Creative Thinking. The future conceptualization-oriented SDSS can provide capabilities for planners and designers to figure out some "hidden organizations" in spatial planning and design, and develop new ideas through its conceptualization capability. The facilitation of conceptualization has been demonstrated by presenting three key ideas for the framework of the SDSS model: (1) bubble-oriented design support system (2) prototypes as an extension of semantic memory, and (3) scripts as an extension of episodic memory in a cognitive pschology perspective. The three ideas can provide a direction for the future GIS technology in planning and design.

• The Korean Journal of Archival Studies
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• no.27
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• pp.169-208
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• 2011

In this thesis, I pursued how the concept of documentary photography in Korea was formed, and how Koreans perceive the current mix of some concepts and how they are tracked that. Korean photography society, directly or indirectly, accepted the concept and format of documentary photography of the United States in which information and discussion of the history and concept by examining the process of being transferred to Korea are examined. Giroksajin(記錄寫眞) is a translation word of documentary photography which was a part of documentary movements in the United States of the 1930s, and are all based on that concept. When we order Korean documentary photography and the subject matter must be distinct, attitude toward the things should be based on the exact perceptions of this age awareness, to be able to give enough information, and finally moved forward to move the human emotion must be. When this condition is equipped with the photographers and archivists perspective is revealed clearly the social and historical records that are meaningful. Documentary photography is the subject of the photographers and archivists that want to record the important things, but what you can get in the records and the question of how to use it is also important. Korean documentary photography, not only records the things, just to have a meaningful supplement to get done the exact context of information production and led to the conclusion that the strengthening of documentation strategies.

• The Journal of Korean Philosophical History
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• no.30
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• pp.59-86
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• 2010

This paper tries to study theoretical transformation about modernity by analyzing changes of the concepts of Gaining Knowledge of the Study of Things(格物致知). Gaining Knowledge of the Study of Things(格物致知) was the main concept to explain the thought of Neo-Confucianism(性理學). But in the Modern era Gaining Knowledge of the Study of Things(格物致知) was understood as the meaning of Science. In Neo-Confucianism(性理學) Gaining Knowledge of the Study of Things(格物致知) was closely related to the side of human duty and the moral value judgement. But in the modern meaning Gaining Knowledge of the Study of Things(格物致知: Science) was focused to scientific study of the objective matter. So the Science on Gaining Knowledge of the Study of Things(格物致知學) effect to breakup the thinking of Neo-Confucianism(性理學).

• Journal of Science Education
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• v.47 no.3
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• pp.225-237
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• 2023

The purpose of this study is to explore the perceptions of elementary pre-service teachers regarding their interest in science. A survey was conducted among 187 elementary pre-service teachers enrolled at Non-Metropolitan Area A University of Education. Data collection was carried out concurrently with three elementary pre-service teachers who agreed to participate in online interviews. The survey responses provided by the elementary pre-service teachers were analyzed using a qualitative text analysis method. Interest in science was observed to decrease during middle school, followed by the upper grades of elementary school and then the lower grades. The reasons for the decline in interest in science were interpreted as stemming from negative experiences with science education within the context of individual circumstances in the school setting. Strategies to address the decline and enhance interest in science were discussed across individual, family, school, teacher, local community, and national levels, considering both short-term and long-term perspectives. These strategies encompassed various inquiry activities and experiences related to the field of science, engagement in science-related activities, student-centered instruction, teacher professional development, support for elementary students and teachers, and policy measures. The multifaceted approach and efforts aimed to open avenues for positive feedback regarding science on an individual level and foster experiences related to science were interpreted as part of an effort to counteract the decline in interest in science. Lastly, given the current situation of declining interest in science and the need to enhance students' interest, it was implicitly and explicitly discussed that pre-service teachers should focus on improving their expertise in curriculum instruction. This research, by exploring the conceptual characteristics of interest in science, perceptions of changes, and educational needs related to interest in science among elementary pre-service teachers, is expected to have academic significance as foundational research data for the current status of declining interest in science.

• Therapeutic Science for Rehabilitation
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• v.9 no.4
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• pp.83-93
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• 2020

Objective : This study was designed to analyze the concepts of current use and meaningful activity in the elderly and provide basic data on establishing concept of participation in meaningful activity and clinical applications. Methods : Using RISS, Google Scholar, Published and DBpia databases, the literature published in the journal was collected from January 2010 to July 2019. The main search term used was "meaningful activity" and 10 of the 182 papers were finally selected for analysis. Based on the qualitative level assessment study by Arbesman, Scheer and Lieberman (2008), the selected paper were classified as Level I to Level V. Results : Five out of 10 studies were published within the last 5 years, indicating that meaningful activity-related studies have been conducted recently. Through prior studies, the concept of meaningful activities was summarized as those that enable individuals to realize their values, achieve their goals and experience positive emotions in their daily lives. Conclusion : The concepts and direction of assessment tools derived from this study will be the basis for the study of 'meaningful activity participation' as a solution to the aging society's elderly problems in the future.

• Proceedings of the Korean Society of Computer Information Conference
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• 2012.07a
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• pp.179-182
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• 2012

21세기 지식정보화 사회는 데이터를 수집, 조작, 가공할 수 있는 능력이 중요한 사회이다. 외국의 경우, 이러한 사회적 흐름에 걸맞게 초등학교 교육과정에서부터 체계적인 데이터베이스 교육이 실시되고 있으나, 우리나라는 아직 단순한 정보의 검색 및 활용 교육에 그치고 있다. 심지어 초등 정보영재를 위한 데이터베이스 교육 역시 컴퓨터 과학의 타 영역에 비해 매우 소홀히 다루어지고 있는 실정이다. 이에 본 연구에서는 국내외 데이터베이스 교육 현황을 분석하고, 초등학생을 위한 데이터베이스 교육 방안을 교육 내용 및 수준, 교수 학습 방법 및 평가의 측면에서 제안하였다. 내용 및 수준의 경우 초등학생이 실생활에서 접할 수 있는 과제를 중심으로 데이터베이스의 개념, 조작, 응용하기를 통해 문제를 해결할 수 있도록 하고, 평가하기는 과제 해결을 위해 필요한 지식 및 기술 수준 뿐만 아니라 문제해결력, 협력적 태도의 종합적 평가 방안을 제안하였다.

• Science of Emotion and Sensibility
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• v.14 no.3
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• pp.347-360
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• 2011

To find out characteristics of TV home shopping's virtual space deepness styling, this study had analysis characteristics of space deepness which is showed on flat TV screen with actually aired 6 dinnerware sales case, at $C^*$ home shopping, March.2005~November.2010, and survey consumer's emotional verbal image according to space styling character to get space deepness, which were shown on flat TV screen with camera angle, and research mutual relation with consumer preference. Also consumer's typical emotional verbal images for each space styling images for brand dinner ware sales had been extracted with reliability analysis, factor analysis, and multi dimensional scaling MDS using SPSS. Styling characteristics of space deepness were contrast of size, layering, vertical arrangement, and perspective arrangement, and used camera angles were bird's eye view, hi angle, and eye level. Result from the research is, highly marked consumer preferred styling material had a deep corelation to material's main factor and perceived emotional verbal images. Therefore this research could bring forward to new consumer preferred styling characteristics according to camera angle. Furthermore, it will be possible to make a study of preferred styling material through evaluation of quantitative spectators of in this area.

• Journal of KIISE:Databases
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• v.27 no.2
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• pp.151-164
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• 2000

The Visual Object Query Language (VOQL) recently proposed for object databases has been successful in visualizing path expressions and set-related conditions, and providing formal semantics. However, VOQL has several problems. Due to unrealistic assumptions, only set-related conditions can be represented in VOQL. Due to the lack of explicit language construct for the notion of variables, queries are often awkard and less intuitive. In this paper, we propose VOQL*, which extends VOQL to remove these drawbacks. We introduce the notion of visual variables and refine the syntax and semantics of VOQL based on visual variables. We carefully design the language constructs of VOQL* to reflect the syntax of OOPC, so that the constructs such as visual variables, visual elements, VOQL* simple terms, VOQL* structured terms, VOQL* basic formulas, VOQL* formulas, and VOQL* query expressions are hierarchically and inductively constructed as those of OOPC. Most important, we formally define the semantics of each language construct of VOQL* by induction using OOPC. Because of the well-defined syntax and semantics, queries in VOQL* are clear, concise, and intuitive. We also provide an effective procedure to translate queries in VOQL* into those in OOPC. We believe that VOQL* is the first visual query language with the well-defined syntax reflecting the syntactic structure of logic and semantics formally defined by induction.