• Title/Summary/Keyword: IT Views

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Aspect feature extraction of an object using NMF

  • JOGUCHI, Hirofumi;TANAKA, Masaru
    • Proceedings of the IEEK Conference
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    • 2002.07b
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    • pp.1236-1239
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    • 2002
  • When we see an object, we usually can say what it is easily even for the case where the object isn't shown in the frontal view. However, it is difficult to believe that all views of every object we have ever seen are fully memorized in our brain. Possibly, when an object is shown, we have some typical views of the object in our brain through our past experience and reconstruct the view to recognize what the presented object is. Non-negative Matrix Factorization (NMF) is one of the methods to extract the basis images from sample data set. The prominent feature of this method is that the reconstructed image is obtained by only additions of the basis images with suitable positive weights. So NMF can be seen more biologically plausible method than any other feature extraction methods such as Vector Quantization (VQ) and principal Component Analysis (PCA). In this paper, we adopt NMF to extract the aspect features from the set of images, which consists of various views of a given object. Some experiments are shown how much well NMF can extract the aspect features than any other methods such as VQ and PCA.

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A Big Data Study on Viewers' Response and Success Factors in the D2C Era Focused on tvN's Web-real Variety 'SinSeoYuGi' and Naver TV Cast Programming

  • Oh, Sejong;Ahn, Sunghun;Byun, Jungmin
    • International Journal of Advanced Culture Technology
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    • v.4 no.2
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    • pp.7-18
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    • 2016
  • The first D2C-era web-real variety show in Korea was broadcast via tvN of CJ E&M. The web-real variety program 'SinSeoYuGi' accumulated 54 million views, along with 50 million views at the Chinese portal site QQ. This study carries out an analysis using text mining that extracts portal site blogs, twitter page views and associative terms. In addition, this study derives viewers' response by extracting key words with opinion mining techniques that divide positive words, neutral words and negative words through customer sentiment analysis. It is found that the success factors of the web-real variety were reduced in appearance fees and production cost, harmony between actual cast members and scenario characters, mobile TV programing, and pre-roll advertising. It is expected that web-real variety broadcasting will increase in value as web contents in the future, and be established as a new genre with the job of 'technical marketer' growing as well.

Estimation of the Fundamental Matrix using a Non-linear Minimization Technique and Its Accuracy Analysis (비선형 최소화에 의한 F행렬 추정 및 정확도 분석)

  • Eom, Seong-Hun;Lee, Jong-Su
    • Journal of the Institute of Electronics Engineers of Korea SP
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    • v.38 no.6
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    • pp.657-664
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    • 2001
  • It is possible to extract a 3D models from its multiple views using the self-calibration. Though it is possible to construct 3D models of objects from their multiple views, accuracy of 3D models depends on the fundamental matrix estimated between two views. In this paper, we show the fundamental matrix accuracy can be improved by taking a non-linear minimization technique. Furthermore, the corresponding points which are completely mismatches or have greater discrepancy errors in their locations, reduce the fundamental matrix accuracy. Thus, applying the Monte Carlo technique and the non-linear minimization Levenberg-Marquardt method to remove the outliers, we can estimate the fundamental matrix with the higher accuracy.

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Application Effects of STS Module Concerning Food Waste (음식물 쓰레기에 관한 STS 모듈의 적용 효과)

  • Lee, Nae-Hwan;Cha, Hee-Young;Kim, Sung-Ha
    • Hwankyungkyoyuk
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    • v.18 no.1 s.26
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    • pp.44-54
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    • 2005
  • This study is intended to examine an effectiveness of STS module concerning food waste, 'Even if food waste is the money, would you throw it away', in the areas of affective domains related to science and attitudes towards environmental problems. For this study, one group of 142 seventh graders attending 'L' middle school in Iksan city, Jeonrabukdo received 8 class hours with this module. Their affective domains related to science and attitudes towards environmental problems were measured by pre- and post-test design in a single group. In addition, their views on STS instruction was also analyzed. Results are as follows. Students in the transition period who had been taught with this module showed that they had a statistically significant effectiveness in interests related to science, scientific attitudes and execution towards environmental problems(p<.05). Students taught with this module had a positive views on the STS instructional methods or contents. It was also shown that their recognition or behavior towards environmental problems have been changed positively.

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Study on Tiangui(天癸)Focusing on the ${\ulcorner}$Neijing${\lrcorner}$(內經) commentators' views (천계(天癸)에 대한 연구 -내경(內經) 주석가(注釋家)들의 견해(見解)를 중심으로-)

  • Lee, Yong-Beom;Heo, Gi-Hoe
    • Journal of Korean Medical classics
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    • v.13 no.2 s.17
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    • pp.174-188
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    • 2000
  • The meaning of Tiangui(天癸) in $Suwen{\cdot}Shanggutianzhenlun\;素問{\cdot}上古天眞論$ is very important because it has the cause of 'having a child' and it shows the signs to being healthy. But until now there have been many arguments about what the correct meaning of Tiangui is. The most important thing in these arguments is to compare and analyze Neijing(內經) commentators' views, and to understand differences between their views. So I compared and analyzed by focusing on Neijing(內經) text, the other books with explanatory notes, and other commentators' views, and, after that. I got the following results. 1. On the meaning of Tian(天), Wangbing(王氷) and Mashi(馬蒔) considered that it is inborn. Zhangjiecong(張志聽) considered it as the Yang(陽) producing Yin(陰) Zhangjiebin(張介賓) regarded it as the Yang(陽) of Gua symbol. On the meaning of the Gui(癸). Zhangjiebin(張介賓) said that it is Yin qi(陰氣) which is the prior step to Xing(形). Mashi(馬蒔) and Zhangzhicong(張志聽) said that it is spirit or Jingxue(spiritual sanguine) which is the concrete constituents in our body. 2. On the relation bet ween Tian(天) and Gui(癸), Mashi(馬蒔) and Zhangzhicong(張志聽) said that Gui(癸) is made from Tian(天), and Zhangjiebin(張介賓) said that Tian is intrinsic in Gui(癸). 3. On the relation between Tiangui(天癸) and Jingxue(精血), Yangshangshan(楊上善). Wangbing(王氷), and Zhangjiebin(張介賓) regarded Tiangui(天癸) as a concrete matter which is the prior step to becoming Jingxue(精血). Mashi(馬蒔) and Zhangjiecong(張志聽) considered Tiangui(天癸) as a concrete matter. Mashi(馬蒔) considered Tiangui(天癸) as Jing(精)which is directly related to pregnancy. Zhangjiecong(張志聽) regarded Tiangui(天癸) as Jingxue(精血) which controls general physiology of men and women. 4. On the function of Tiangui(天癸), Yangshangshan(楊上善) and Wangbing(王氷) considered that Tiangui (天癸) has relation to menstruation. pregnancy. and, production and extinction of Jing(精). Zhangjiecong(張志聽) argued that Tiangui(天癸) strengthens and warms muscle and derma. and controls differential physiology between men and women, and said that the maintenance of its activity is based on the acquired spirit of food. A book of 『Huangti Neijing Yanjiu Dacheng(黃帝內經硏究大成)』 said that the function of Tiangui(天癸) is to promote generation, to develop the second sexual symbol, and to make growing and aging in body. It also said that Tiangui(天癸) has some relation to kidney and other organs, Chong Meridian, Ren Meridian, Du Meridian, and Dai Meridian. 5. Other commentators of 『Neijing(內經)』 accepted the meaning of Tiangui(天癸) as the prior step of both man's spiritual overflowing and woman's menstruation. 6. On the relation between Tiangui(天癸). and, Cheng and Ren Meridians, Yangshangshan(楊上善) and Zhangjiecong(張志聽) said that Tiangui(天癸) has direct relation with two meridians. Wangbing(王氷) said that Tiangui(天癸) and two meridians have no direct relation. Now I compared commentaors' views of Tiangui(天癸) and studied the differences between their views. I concluded that on the concept of Tiangui(天癸), Zhangjiebin(張介賓)'s explanations express well its connotative meaning. And on the function of Tiangui (天癸), Zhangjiecong(張志聽)'s explanations are excellent because he organized well his seniors' views, and extended its meaning by showing Neijing(內經)'s phrases related to Chong and Ren Meridians. Also, Mashi(馬蒔) suggested that if Tiangui(天癸) comes earlier than normal. people will die soon. But I think that more studies on male and female bodies are needed as to Mashi(馬蒔)'s argument.

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A Study on Epistemic Structure of the Architecture in Cyberspace. - A comparative analysis on Novak and Lynn based on Lacan's subject theory - (사이버공간의 인식적 구조에 관한 연구 - 라캉의 관점으로 본 노박과 린의 비교연구 -)

  • Lee Kyung-Hoon
    • Korean Institute of Interior Design Journal
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    • v.14 no.3 s.50
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    • pp.224-233
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    • 2005
  • Cyberspace is created through the confluence of global electronic communications networks and technology, and also meant to be a three-dimensional space of information. Its application in arts, however, requires broader views and knowledge and often results a confounded definition of it. The study is to define cyberspace and the architecture in it, with the methodology of the structural criticism, focusing the textuality without any impression or intuition to reach its valid epistemic definition. Two architects in cyberspace; Novak and Lynn, and their works have been discussed and analyzed reflecting Benedikt's theory of cyberspace which has coined its definition in architecture in early 90's. Lacan's subject theory, including the mirror stage, has played a key role to evaluate the identities and the differences of various views towards cyberspace. It also enables us to construe the on-going status and meaning of cyberspace and the architecture In it.

Investigating Students' and Teachers' Views on 'the Necessity of Learning Science' by the Network Analysis (계통도 분석법을 통한 초등학생과 초등교사의 '과학학습의 필요성'에 대한 관점 조사)

  • Jung, Yong-Jae;Song, Jin-Woong
    • Journal of The Korean Association For Science Education
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    • v.22 no.4
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    • pp.806-819
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    • 2002
  • The purpose of this study was to investigate students' and teachers' views on the necessity of learning science in Korea. To grade sixth students(n=565) and teachers(n=57) of elementary schools in Seoul, Korea, a question, "Why do we have to learn science?", requiring a short essay of more than 7 lines including the reason and examples was given. From the analysis of short essays with the network analysis, it was found that most students and teachers had views of "we have to learn science to make personal everyday-life easy in aspect of personal usefulness and human everyday-life easy in aspect of social usefulness" with focusing on external value of science and taking examples of everyday-life related. And it was found that students' and teachers' views were somewhat biased toward focusing on external values of science.

The effects of practical reasoning home economics instruction on middle school students' views of home economics (실천적 추론 가정과 수업이 중학생의 가정교파 인식에 미치는 효과)

  • Yoo, Tae-Myung;Park, Mi-Jeong;Chae, Jung-Hyun
    • Journal of Korean Home Economics Education Association
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    • v.19 no.1 s.43
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    • pp.65-79
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    • 2007
  • The purpose of this study was to test the effects of practical reasoning home economics instruction on middle school students' views of home economics. Thomas(1986) categorized six alternative views of home economics as education for women, manual training, application of science, household management, family development, and an intervention. This study carried a quasi-experiment research with an independent variable of types of instruction and a dependent variable of views of home economics. The experiment was carried with the sample of 137 8th grade students in Gwangju area for ten class hours. Paired t-test was performed to examine the pretest-posttest differences of each experiment group and comparison group. The results showed that practical reasoning instruction improved level of the view of home economics as an intervention, and decreased level of the view of home economics as manual training. From the results of this study, conclusion can be made that practical reasoning home economics instruction is effective in changing to the appropriate views of home economics. Also it is expected that current Korean home economics textbook can lead to the views of home economics as household management and as family development.

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Some (Re)views on ELT Research: With Reference to World Englishes and/or English Lingua Franca

  • Cho, Myongwon
    • Korean Journal of English Language and Linguistics
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    • v.2 no.1
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    • pp.123-147
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    • 2002
  • As far as the recent ELT research concerned, it seems to have been no hot ‘theoretical’ issues, but ‘practical’ ones in general: e.g., learners and learning, components of proficiency, correlates of L2 learning, etc. This paper focuses on the theme given above, with a special reference to the sub-title: specifically, 1) World English, world Englishes and world's lingua franca; 2) ENL, ESL and EFL; 3) Grammars, style manuals, dictionaries and media; 4) Pronunciation models: RP, BBC model and General American, Network Standard; 5) Lexical, grammatical variations and discourse grammars; 6) Beliefs and subjective theories in foreign language research; 7) Dilemma among radical, canonical and eclectic views. In conclusion, the author offers a modest proposal: we need to appeal to our own experience, intention, feeling and purpose, that is, our identity to express “our own selves” in our contexts toward the world anywhere, if not sounding authentic enough, but producing it plausibly well. It is time for us (with our ethno-cultural autonomy) to need to be complementary to and parallel with its native speakers' linguistic-cultural authenticity in terms of the broadest mutual understanding.

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A Follow-up Study of Views on Contactless Work : Workers' and Managers' Coorientation (비대면 근무에 대한 인식 비교 후속 연구 : 근로자와 관리자의 상호지향성)

  • Kwon, Ho Jung;Min, Daihwan
    • Journal of Information Technology Services
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    • v.20 no.3
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    • pp.27-40
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    • 2021
  • There have been a series of mixed reviews on the 'untact work' which was implemented for the safety of the organizational members from Covid-19. This study reports a follow-up study with a quantitative approach to issues identified by in-depth interviews with workers and managers who have experiences in work from home. To compare the views of workers and managers on untact work, 264 workers and 141 managers were surveyed. An analysis of agreement, congruency, and accuracy on the basis of the co-orientation model shows that workers are more positive about the untact work than managers and that managers are found to have a negative perception on untact work. This seems to be a burden on workers. More specifically, managers and workers show significant perception gaps on the issues of unfair evaluation and work-life balance. The results imply that organizations need to make efforts to minimize the perception gaps between workers and managers. This would bring about benefits from untact work.