• Title/Summary/Keyword: Interesting

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NOTE ON VANDERMONDE'S CONVOLUTION THEOREM

  • Choi, June-Sang
    • East Asian mathematical journal
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    • v.14 no.1
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    • pp.157-163
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    • 1998
  • The aim of this note is to prove Vandermonde's convolution theorem by using the theory of hypergeometric series as suggested in literature which does not seem to be easy to justify it. We also provide an interesting identity and its application.

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SOME IDENTITIES INVOLVING FACTORIALS

  • Choi, June-Sang
    • The Pure and Applied Mathematics
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    • v.3 no.1
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    • pp.41-46
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    • 1996
  • We obtain some interesting identities involving factorials by using the theory of Bessel functions.

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Research on Image of Clothes Applying the Surface Composition and Colors of a Traditional Jokakbo (조각보의 면구성과 색채를 응용한 의복의 이미지 연구)

  • Choi, Yoon-Hye;Eun, Young-Ja
    • Fashion & Textile Research Journal
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    • v.7 no.2
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    • pp.135-142
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    • 2005
  • Through the formative analysis of the traditional jokakbo, we have composed surface composition that was made by a perfect square, triangle, a weather vane type, vertical type, cint$\tilde{a}$mani type, and a mixed rectangular. And we have composed that was made by vivid tone, pale tone, and so on, and finally analyzed image, preference rate of them. First, the cause of composition for the image of stimulant was composed by the cause of simplicity characteristics, interesting characteristics, rigid-flexibility characteristics, and modern characteristics. Secondly, the image of clothes was revealed as a simple image of perfect square, a feminine image of cint$\tilde{a}$mani type, a modern image of mixed rectangular in the case of large pattern. And in the case of small pattern, perfect square was revealed as a simple image, cint$\tilde{a}$mani type was revealed as a feminine image, triangle with achromatic colored weather vane type and pale tone was revealed as an interesting image, achromatic colored and pale toned a weather vane type, vivid toned vertical type was revealed as a modern image. Lastly, it revealed that the preference rate against clothes is related with the cause of simplicity characteristics, interesting characteristics, and rigid-flexibility characteristics in the case of large patterns, and especially in the case of large patterns and small patterns, the clothes of pale tone are more preferred. And achromatic colored mixed rectangular and chromatic colored cint$\tilde{a}$mani type are more preferred by the large patterns, and chromatic colored and pale toned weather vane type is more preferred by the small patterns.

Visual Exploration based Approach for Extracting the Interesting Association Rules (유용한 연관 규칙 추출을 위한 시각적 탐색 기반 접근법)

  • Kim, Jun-Woo;Kang, Hyun-Kyung
    • Journal of the Korea Society of Computer and Information
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    • v.18 no.9
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    • pp.177-187
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    • 2013
  • Association rule mining is a popular data mining technique with a wide range of application domains, and aims to extract the cause-and-effect relations between the discrete items included in transaction data. However, analysts sometimes have trouble in interpreting and using the plethora of association rules extracted from a large amount of data. To address this problem, this paper aims to propose a novel approach called HTM for extracting the interesting association rules from given transaction data. The HTM approach consists of three main steps, hierarchical clustering, table-view, and mosaic plot, and each step provides the analysts with appropriate visual representation. For illustration, we applied our approach for analyzing the mass health examination data, and the result of this experiment reveals that the HTM approach help the analysts to find the interesting association rules in more effective way.

Validity of the Criteria for Assessing the Degree of Preference of Science Learning Programs for Gifted Elementary Pupils (과학 학습 활동에서 초등학교 상위집단 학생들이 선호하는 과제 특성 평가 준거의 타당성)

  • Oh, Won-Kun;Park, Jong-Seok;Park, Jong-Wook;Chung, Byung-Hoon
    • Journal of The Korean Association For Science Education
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    • v.22 no.1
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    • pp.32-39
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    • 2002
  • Three conjectures as the criteria for developing differentiated science learning program for gifted elementary students were derived from the previous research report: 1) The students' reasons why certain educational programs were thought to be interesting or profitable could be classified into the 3 criteria; novelty, curiosity, participation. 2) Students used to think that the programs were interesting if at least anyone of the above 3 criteria is fulfilled. 3) They think, especially, that the programs were profitable if the curiosity criterion is satisfied. To check these conjectures, 47 students were investigated with a Likert type questionnair asking how much the given program is interesting and profitable to themselves after they finished a set of programs for gifted students.

Horse Hoof Shaped Object Detection in Satellite Images (위성영상에서 말발굽 형상을 갖는 관심물체 탐색 방법)

  • Lim, In-Geun;Ra, Sung-Woong
    • Korean Journal of Remote Sensing
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    • v.33 no.6_1
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    • pp.1019-1027
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    • 2017
  • As high resolution satellite images can be used, numerous studies have been carried out for exploiting these images in various fields. This paper proposes horse hoof shaped object detection method based on mathematical morphology to extract interesting targets. Interesting targets have conceptually similar shapes such as a horse hoof, not having exact size or shape. Detection of an object with the similar shapes is possible by applying mathematical morphology processes. The proposed method allows an automatic object detection system to detect the meaningful object in a large satellite image rapidly. The mathematical morphology process can be applied to binary images, and thus this method is very simple. Therefore, this method can easily extract a "horse hoof shaped object" from any image that has indistinct edges of the interesting object and different image qualities depending on the filming location, filming time, and filming environment. Using the proposed method by which a "horse hoof shaped object" can be rapidly extracted, the performance of the automatic object detection system can be improved.

Expert Recommendation Scheme by Fields Using User's interesting, Human Relations and Response Quality in Social Networks (소셜 네트워크에서 사용자의 관심 분야, 인적 관계 및 응답 품질을 고려한 분야별 전문가 추천 기법)

  • Song, Heesub;Yoo, Seunghun;Jeong, Jaeyun;Park, Jaeyeol;Ahn, Jihwan;Lim, Jongtae;Bok, Kyoungsoo;Yoo, Jaesoo
    • The Journal of the Korea Contents Association
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    • v.17 no.11
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    • pp.60-69
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    • 2017
  • Recently, with the rapid development of internet and smart phones, social network services that can create and share various information through relationships among users have been actively used. Especially as the amount of information becomes enormous and unreliable information increases, expert recommendation that can offer necessary information to users have been studied. In this paper, we propose an expert recommendation scheme considering users' interests, human relations, and response quality. The users' interests are evaluated by analyzing their past activities in social network. The human relations are evaluated by extracting the users who have the same interesting fields. The response quality is evaluated by considering the user's response speed and response contents. The proposed scheme determines the user's expert score by combining the users' interests, the human relations, and the response quality. Finally, we recommend proper experts by matching queries and expert groups. It is shown through various performance evaluations that the proposed scheme outperforms the existing schemes.

Implementation and Analysis of 3D Fish Encyclopedia for Children Education in Mobile Environment (모바일 환경 유아교육용 3D 어류백과 시스템의 구현 및 흥미도 분석)

  • Oh, Yeon-Jae;Kim, Eung-Kon
    • The Journal of the Korea institute of electronic communication sciences
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    • v.8 no.2
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    • pp.355-361
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    • 2013
  • Various study for technology of agmented reality by using mobile has been progressed in aspect of advantages for mobility and popularity, recently as technology of agmented reality is developing day by day. Mobile agmented reality is technology imaginary informations are grafted into reality by using mobile. That can induce new learning experience showing high interest and interesting for infant education. This thesis is a fishes encyclopedia for infant that was made by displaying pictures as 3D fish model. 3D fish model is possible to turn on the six axis and enlarge and reduce by demand of users. Furthermore, it was made for inducing interesting about book for infant by inserting various sound effect. The resort of using system for infant shows interest and interesting over four times in case infant will learn with fishes encylopedia not previous books.