• Title/Summary/Keyword: Category theory

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Building Topic Hierarchy of e-Documents using Text Mining Technology

  • Kim, Han-Joon
    • Proceedings of the CALSEC Conference
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    • 2004.02a
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    • pp.294-301
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    • 2004
  • ·Text-mining approach to e-documents organization based on topic hierarchy - Machine-Learning & information Theory-based ㆍ 'Category(topic) discovery' problem → document bundle-based user-constraint document clustering ㆍ 'Automatic categorization' problem → Accelerated EM with CU-based active learning → 'Hierarchy Construction' problem → Unsupervised learning of category subsumption relation

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Auction Experience, Category Knowledge and Trust in eBay Stamp Auctions

  • Kim, Tae-Ha;Jaju, Anupam
    • Asia pacific journal of information systems
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    • v.20 no.3
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    • pp.33-49
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    • 2010
  • We empirically examine the impact of online auction knowledge and category-specific knowledge on the final price of online auctions. Specifically, we question how the relationship between buying and selling experiences affects the final prices of online auctions. Related to the trust between buyers and sellers, we examine the multiple interactions between a buyer-seller pairand aim to identify how these repeated transactions influence the final price. To contrast these effects with other product related factors, we focus on so called 'common value' auctions of vintage stamps on eBay, in which the ex-post value of the product is the same among participating agents’ perceived value. Online auction of stamps provides a representative setting to examine the relationship between market experience and the auction participation behavior in the common value auction, as it provides the book value of stamp as well as price variation across individual buyers with different expertise levels. Our analysis of over 3000 stamps auctions on eBay indicates a significantly high frequency of buyer-seller (pair) interactions, thus suggesting a 'relationship view' of auctions. The work validates five hypotheses derived from the existing theory in economics, marketing, and information systems. Through the common-value auction data, we find that seller's online auction experience and category-specific experience favor sellers by increasing the final price. However, buyer's online auction experience does not affect the final price, but buyer's category-specific experience favors buyers by decreasing the final price. We find that the trust between two trading parties increases the final price.

Reconsideration of the Linguistic Category of Mediation in Language: a Comparative Approach between French and Korean (언어의 '매개작용' 범주 고찰: 프랑스어와 한국어 비교 연구)

  • Suh, Jungyeon
    • Cross-Cultural Studies
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    • v.46
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    • pp.297-325
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    • 2017
  • In this paper, I would like to reconsider the evidential category (or the mediation category) in languages with language specific values, especially in Korean and French evidentials. We tried to analyze how the evidentials are represented in both languages including their linguistic markers (grammatical, lexical or discursive) and their semantic meanings. According to the precedent studies from the general linguistic point of view, we would like to reconsider the semantic meanings of both languages' grammatical markers, the so-called Korean retrospective marker '-te-' and French conditionals in the framework of the enunciative operation theory suggested by $Descl{\acute{e}}s$ & $Guentch{\acute{e}}va$ (2000), which proposed to classify the type of discourse by the language-independent description tools conceived after the enunciation theory suggested by Bally (1965), Benveniste (1956), Culioli (1973). Through this approach, we would like to contribute to establishing the linguistic basis not only for the general linguistic research to determine the invariant meaning of linguistic evidentials and their system, but also for the applied linguistics to the language engineering field.

A Grounded Theory Approach on the Multiple Role Experience of Married Women Graduate Students (기혼여자 대학원생의 다중역할 수행 경험과정)

  • Kim, Eun-Ha;Lim, Yeon-Ok;Park, Gyung-Sook;Kim, Nam-Young
    • Korean Journal of Adult Nursing
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    • v.20 no.1
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    • pp.113-125
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    • 2008
  • Purpose: This research was conducted to explore the experiences of graduate student women with children fulfilling multiple roles and to generate a substantive theory. Methods: This study uses the grounded theory method based on Strauss and Corbin(1988)'s method. Interviews were conducted with 11 graduate student women who had children aged three of older. Results: The core category of this research is 'Role balancing for self-generativity'. Based on the core category, three types of married women graduate students' experiences were found. They are 'concentrating on graduate-work' 'postponing graduate-work' and 'adjustment between two roles' Conclusions: Through understanding the married women's multiple roles experience process, there can be a basis for making a women's health system and social support system for the married women graduate student. Also, this research is to generate a substantive theory which can helps to change social perspectives on the quality of life for the women who will contribute in Korean society as professionals.

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The Influence of Landscape Painting Concepts on Garden Design Principles in East-Asia - Focused on the Relationship between Chinese Painting Theory and Garden Theory - (동양그림의 경관관이 작정원리에 미친 영향 - 중국화론과 원림론의 관계를 중심으로 -)

  • Kim, Han-Bai
    • Journal of the Korean Institute of Landscape Architecture
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    • v.37 no.6
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    • pp.85-95
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    • 2010
  • East-Asian intellectual societies in the pre-modem age sustained a holistic system of poem-calligraphy-painting trinity until the coming of Western modernism. Therefore, it has been insisted that the principles of traditional landscape gardening were greatly influenced by those of landscape painting and related literature. This study examined those influences closely to discover the essence of traditional Asian landscape architecture through a comparative study between Chinese landscape painting theory and landscape gardening theory within the dual categories of 'contents(value and meaning)' and 'form(view and spatial structure)'. The most important theme of landscape painting theory in contents category was 'Chi and its Vitality(氣韻生動)'. The matching theme in landscape design field was 'Feng-Shui(風水)' and 'Yi-Jin'g(意境)'. The most important theme of landscape painting theory in formal category was 'the Three Ru1es of Perspective(三遠法)'. And the matching theme of landscape design theory was 'Yindi(因地)' and 'Jie-Jing(借景)'. The most important theme of landscape painting theory in formal category was 'the Three Rules of Perspective(三遠法)'. And the matching theme of landscape design theory was 'Yindi(因地)' and 'Jie-Jing(借景)'. It was found that themes and various principles of both fields were closely inter-related and have much in common in their representation of contents and form. In the close relationship with main art genres like this, the landscape gardening could have been recognized as one of the genres of fine art.

순서와 위상구조의 관계

  • 홍성사;홍영희
    • Journal for History of Mathematics
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    • v.10 no.1
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    • pp.19-32
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    • 1997
  • This paper deals with the relationship between the order structure and topological structure in the historical point of view. We first investigate how the order structure has developed along with the set theory and logic in the second half of the nineteenth century. After the general topology has emerged in the beginning of the twentieth century, two disciplines of the order theory and topology give each other a great deal of effect for their development via various dualities, compactifications by maximal filter spaces and Alexandroff's specialization order, which form eventually a fundamental setting for the development of the category theory or functor theory.

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University Students' Cognitive Adaptation types in The Traditional Korean Education Based on the Grounded Theory (근거 이론(Grounded theory)에 따른 한국 전통 교육에 대한 인식 고찰)

  • Kim, Min-Jung;Kim, Dae-Ho
    • Asia-Pacific Journal of Business Venturing and Entrepreneurship
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    • v.7 no.1
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    • pp.105-111
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    • 2012
  • Purpose: This is the study about the experiences of university students in traditional Korean education. Methods and process: This study was based on the grounded theory method(Strauss & Corbin, 1998). Interviews and observations were conducted with 20 adults who were thought by the researcher as the teacher. They are 21 or 33 years old. This paper had conducted during 14 weeks, Results: The core category of this study is 'university students' adaptation and overcome the conflicts in the every situation. Based on the core category, three types of students' experiences were found. Three types of students are 'negative-cognition', 'positive-cognition', 'indifference'. Conclusions: For making globalizational period, we need the teachers who can understand the traditional Korea education. And we have to change them.

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Effects of Colors and Categories of Motifs on Evaluating Sensory Image of Fashion Fabrics (문양에 따른 소재의 감성이미지와 선호도 - 문양의 종류와 문양 색을 중심으로 -)

  • Lee, So-Ra
    • The Research Journal of the Costume Culture
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    • v.16 no.5
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    • pp.841-851
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    • 2008
  • The purpose of the study was to examine the effect of motif categories and motif colors on evaluating sensory image of fashion materials with the gestalt theory as the background. The research was conducted on a quasi experimental basis, with subjects numbering 187 male and 207 female college students. Data were collected in the period from march 19th to march 31st, 2007. A set of fabric stimuli and semantic differential scales were developed. The stimuli were thirteen fabric species(each measuring 12 by 13cm). Variables included; (a) motif colour(white, grey, pink and blue) (b) motif categories(plain, paisley, flower, stripes and zebra effect). The semantic differential scale to measure sensory image of fabric stimuli included 23 sets of bi-polar adjectives. The data were analysed by factor analysis and ANOVA and the major finding were as follows. 1) Four sensory dimensions emerged of importance: salience, attractiveness, comfort and softness. 2) The motif category effected on the four sensory image dimensions while the motif colour effected on salience, comfort and softness sensory dimensions. 3) An interaction effect was founded between motif category and motif colour. 4) Motif category showed significant effects on the preference and liking of the fashion, however the motif colour did not show any significant effects on the preference and liking. As a whole the results supported the gestalt theory and the results can be used for the marketing strategy for developing fashion fabrics.

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COUNTABILITY AND APPROACH THEORY

  • Lee, Hyei Kyung
    • Journal of the Chungcheong Mathematical Society
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    • v.27 no.4
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    • pp.581-590
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    • 2014
  • In approach theory, we can provide arbitrary products of ${\infty}p$-metric spaces with a natural structure, whereas, classically only if we rely on a countable product and the question arises, then, whether properties which are derived from countability properties in metric spaces, such as sequential and countable compactness, can also do away with countability. The classical results which simplify the study of compactness in pseudometric spaces, which proves that all three of the main kinds of compactness are identical, suggest a further study of the category $pMET^{\infty}$.