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- 저자 : 김찬주(Chanju Kim) (검색결과 19 건)
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김찬주(ChanJu Kim),김수연(SooYeon Kim) 한국색채학회 2015 한국색채학회 논문집 Vol.29 No.3
변화하는 소비자들의 기호에 따라 화장품에서도 품질과 기능의 우수성을 추구함과 동시에 디자인의 감성적 매력이 강조되고 있다. 화장품 패키지디자인에서 색채는 시각적 영향력이 큰 디자인 요소로 작용한다. 본 연구는 한국과 중국 기초화장품 용기의 색채 특성을 색상, 색조, 배색의 관점에서 비교하여 화장품 용기에 반영된 양국 여성들의 색채감성의 유사점과 차이점을 이해하고자 하였다. 자료 수집을 위해 토너, 로션, 세럼, 크림의 4종 기초 화장품 용기를 연구대상으로 선정하였고, 한국과 중국 화장품 브랜드의 웹사이트와 잡지를 검색하여 한국 218개, 중국 96개 총 314개 용기사진을 수집하였다. 수집된 자료들은 Minolta Color Reader(CR-11)를 이용하여 먼셀 HV/C 값을 측정하였고, 이들을 10개 기본색을 4단계(2.5-5.0-7.5-10.0)로 나눈 40색상환, PCCS 색조분류와 고바야시 색상-색조시스템에 따라 적용하여 색상과 색조의 분포를 분석하였다. 배색은 색상과 색조의 차이에 따라 동일, 유사, 대비의 3가지 유형으로 분류하였다. 분석결과 한국의 화장품 용기는 주황, 빨강과 같은 난색계열의 색상과 연하고 부드러운 색조들이 주를 이루어 여성스럽고 부드러운 이미지에 대한 높은 선호도를 나타내었다. 중국은 화장품 용기 색상으로 전통색인 빨강색의 사용빈도가 낮은 대신 자연을 상징하는 초록과 파랑계열 색상에 대한 선호도가 높고 색조는 회색의 부드럽고 밝은 색조들이 주를 이루었다. 배색에서는 한국은 동일하거나 유사한 색상과 색조를 사용하는 유사배색이 많고 중국은 유사배색과 함께 대비배색도 높게 사용되었다. 화장품은 피부에 직접 밀착하는 제품이므로 용기 색채로 순하고 친환경적 이미지를 표현하는 것이 중요함을 시사하였다. Cosmetics not only must be of high quality and function but also stress importance on design in order to fulfill the fast-changing taste of women. Color is a powerful design element that expresses visual emotion. This study analyzes the color of cosmetics containers for Korean and Chinese women by hue, tone, and color coordination, objected to understanding similarities and differences in emotional expression of Korean and Chinese women through color. Data samples were containers of four items - toner, lotion, serum, and cream - collected by browsing Korean and Chinese cosmetic brand websites and magazines. 225 Korean and 98 Chinese items, a total of 323 items, were collected. Munsell HV/C value was obtained using Minolta Color Reader (CR-11), and hue was measured in four levels, 2.5-5.0-7.5-10. Hue scale, PCCS Tone Scale, and Kobayashi Hue & Tone System by Adobe Photoshop were applied. Color coordination was categorized into three standards - identical, adjacent, and contrast - based on the distance of hue and tone. Korean containers showed higher preference for adjacent coordination while adjacent and contrast coordination appeared similar in Chinese containers. Korean and Chinese women showed similarities and differences in expressing emotion through color. Korean women liked warm-colored designs with pale and soft tones, showing strong preference for feminine and soft images. Chinese women preferred greenish colors which are cool yet soft images that remind of the nature, instead of their symbolic red color. This speaks for a growing importance on eco-friendliness and mild image of cosmetics, since cosmetics are directly applied to skin.
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김찬주(Chanju KIM),서정원(Jungwon SEO),이창현(ChangHyen LEE),신형호(HyeongHo SHIN),김대진(Daejin KIM) 전남대학교 어업기술연구소 2016 어업기술연구소보고지 Vol.9 No.1
The typhoon is one of the disaster which the man will overcomes. Till now many scientist have studied on the typhoon for a long time but it remains for a man that it will study in future. So we have interested in the typhoon and have studied on climate change by approaching of the typhoon at the shelter area of ship. The surveys are carried out during 2 days from 9th. July. to 10th. July. in 2014 by the training ship “Dong Beak” of Chonnam National University. The model of the survey was the Typhoon “NEOGURI” born at the 4th. July in 2014. The results obtained can be summarized as follows; The journey period of Typhoon Neoguri from the birth point of the typhoon to the sea area of Korea was about 6 days, and the approach velocity of the typhoon was rapidly increasing after passing through 25 degrees of the latitude. Meanwhile, considering most typhoons formed from the ocean at lower latitude take more than 7 days to reach Korea, the period of the Typhoon Neoguri was shorter than the average approaching period. Thus, it is considered that making preparation of vessels and ships for typhoon is needed from the point of over 25 degrees of the latitude. When it comes to the change of barometric pressure by a barometer had been taking place gradually till the day before the typhoon approached. The change of barometric pressure, however, was varied very sharply from the time of 12 hours before the typhoon approached to the time of 3 hours after the typhoon. The change of wind velocity by an anemometer was varied very widely for 3 hours after passing through the closest point where the typhoon was headed, but was rapidly in a state of tranquility after the 3-hour. The maximum instantaneous wind velocity was 33 knots, being the closest to the typhoon’s path, 1010hours 9th,Jul. The change of wind direction by a wind direction indicator had been shown before 9 hours when the radical change accelerated, and the trend of wind direction was general clockwise that the beginning was the east wind and it was changed as the south wind. Also, when approaching typhoon nearly, and reaching the highest point of wind velocity, the prevailing wind was the north wind. In a nut shell, regarding the change of barometer pressure, the wind velocity and the wind direction was widely varied on the basis of the approaching point of the typhoon. Therefore, the vessels or ships which are heading for sea need to figure out how to handle the situation related with typhoon by using the result of this paper. In other words, as it has been shown from the Typhoon Neoguri, we should find the sea area reducing the south wind while the dangerous semicircle and the south wind of typhoon can deal a fatal outcome to vessels and ships, and should decide the best area as a shelter of ship at typhoon area, which can protect the wind and wave by obtaining confidential information.
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소셜 북마킹 시스템의 스패머 탐지를 위한 기계학습 기술의 성능 비교
김찬주(Chanju Kim),황규백(Kyu-Baek Hwang) 한국정보과학회 2009 정보과학회 컴퓨팅의 실제 논문지 Vol.15 No.5
소셜 북마킹(social bookmarking) 시스템은 사용자가 북마크를 저장하고 공유할 수 있는 플랫폼을 제공하는 웹 기반(web-based) 시스템으로 폭소노미(folksonomy)를 이용한 대표적인 웹2.0 서비스이다. 소셜 북마킹 시스템에서의 스패머(spammer)란 자신들의 이익을 위해서 시스템을 고의적으로 악용하는 사람을 말한다. 스패머는 많은 양의 잘못된 정보를 시스템에 포스팅(posting)하기 때문에 전체 소셜 북마킹 시스템의 리소스(resource)를 쓸모없게 만들어 버린다. 따라서, 스패머를 빠른 시간 안에 탐지하고 그들의 접근을 차단하는 것은 시스템의 붕괴를 방지하기 위해 중요하다. 본 논문에서는 사용자가 사용한 태그에 대한 데이터를 추출하여, 사용자가 스패머인지 아닌지를 예측하는 모델을 기계학습의 다양한 방법을 적용하여 생성한 후 그 성능을 비교해 보았다. 구체적으로, 결정테이블(decision table, DT), 결정트리(decision tree, ID3), 나이브 베이즈 분류기(na?ve Bayes classifier), TAN(treeaugmented na?ve Bayes) 분류기, 인공신경망(artificial neural network)의 방법을 비교하였다. 그 결과 AUC(area under the ROC curve)와 모델 생성시간을 고려하였을 때 나이브 베이즈 분류기가 가장 만족할 만한 성능을 보였다. 나이브 베이즈 분류기의 분류 결과가 가장 좋았던 이유는 성능을 비교하는 데 사용된 AUC가 결정트리 계열의 방법(ID3 등)보다 나이브 베이즈 분류기에서 일반적으로 높게 나오는 경향이 있다는 것과, 스패머 탐지 문제가 선형으로 분리 가능한 경우(linearly separable)와 유사할 가능성이 높기 때문으로 여겨진다. Social bookmarking systems are a typical web 2.0 service based on folksonomy, providing the platform for storing and sharing bookmarking information. Spammers in social bookmarking systems denote the users who abuse the system for their own interests in an improper way. They can make the entire resources in social bookmarking systems useless by posting lots of wrong information. Hence, it is important to detect spammers as early as possible and protect social bookmarking systems from their attack. In this paper, we applied a diverse set of machine learning approaches, i.e., decision tables, decision trees (ID3), na?ve Bayes classifiers, TAN (tree-augment na?ve Bayes) classifiers, and artificial neural networks to this task. In our experiments, na?ve Bayes classifiers performed significantly better than other methods with respect to the AUC (area under the ROC curve) score as well as the model building time. Plausible explanations for this result are as follows. First, na?ve Bayes classifiers are known to usually perform better than decision trees in terms of the AUC score. Second, the spammer detection problem in our experiments is likely to be linearly separable.
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한국, 중국, 베트남의 색조화장품 색채특성 비교 연구 (1)
김수연(Kim, SooYeon),김찬주(Kim, Chanju) 한국색채학회 2016 한국색채학회 논문집 Vol.30 No.3
Korean cosmetics have been concentrated on basic cosmetics but recently begun to develop color cosmetic to satisfying consumers’ preference and fast-changing cosmetics trend. This paper selected two countries, China and Vietnam where there is a high demand of Korean cosmetics. The study compared the differences in characteristics of color usage in color cosmetics of these two countries’ women by comparing with Koreans demands with its characteristics for further understanding in each countries’ color system. Data collection were done in 3 steps. 4 items (Skin Cover, Blusher, Eye-shadow, and Lipstick) were chosen. Purchased popular products by visiting places like Seoul in Korea, Beijing and Shanghai in China, and Hanoi in Vietnam and collectred pictures of color cosmetics pictures from beauty magazine. The items were collected total of 968 products such as, 476 products from 10 different brands in Korea, 299 products from 11 different brands in China, 193 products from 12 different brands in Vietnam. Measurement Munsell value of collected items using spectrophotometer, MINOLTA CM-700d. For data analysis, color data were distribued by applying 40 Hue Scale and Kobayashi Hue & Tone System. About each tone and hue of color, 3 countries share some similarity and differences. Common Characteristics of color usage is mainly focused on R(Red), YR(Yellow Red), and RP(Red Purple) with soft(sf), light grayish(ltgy), and pale(p.). For each product, three countries share a skin cover color tone most collectively YR, R color, but Korea prefer YR color series and showed high value than China and Vietnam, while China and Vietnam prefer red color and lower value than Korea. Blushers and lipsticks are preferably R, YR, RP color for these three countries, each country has some differences of distribution in color hue and tone. Eye-shadows has shown most various distribution of color hue and tone for each countries than other items. Korean cosmetics brand need to develop color palette based on the similarities and differences of each color cosmetics item reflecting culture of make-up, skin color, aesthetics of China and Vietnamese women.
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