• 한국콘텐츠학회:학술대회논문집
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• 한국콘텐츠학회 2010년도 춘계 종합학술대회 논문집
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• pp.536-538
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• 2010

과학기술분야 학술지에 대한 인용색인 DB구축과 서비스는 중요하다. 대표적인 인용색인 DB로는 SCI가 있으며 전 세계적으로 활용되고 있다. 국내 학술지 대부분이 SCI 대상 학술지가 아니므로 한국 내 과학기술분야 학술지에 대한 계량분석 및 성과평가가 불가능한 현실이다. 이러한 문제점을 해결하기 위한 대안이 한국과학기술인용색인서비스(KSCI)이다. 본 논문에서는 기존의 KSCI 서비스를 전면 개편한 KSCI 신규버전 서비스에 대하여 이용자 만족도 조사를 실시하여 수집된 결과를 분석하고 현재 시스템의 수준과 향후 개선방향을 도출하였다.

• Journal of Information Processing Systems
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• 제9권3호
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• pp.435-460
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• 2013

Recommender systems are popular applications that help users to identify items that they could be interested in. A recent research area on recommender systems focuses on detecting several kinds of inconsistencies associated with the user preferences. However, the majority of previous works in this direction just process anomalies that are intentionally introduced by users. In contrast, this paper is centered on finding the way to remove non-malicious anomalies, specifically in collaborative filtering systems. A review of the state-of-the-art in this field shows that no previous work has been carried out for recommendation systems and general data mining scenarios, to exactly perform this preprocessing task. More specifically, in this paper we propose a method that is based on the extraction of knowledge from the dataset in the form of rating regularities (similar to frequent patterns), and their use in order to remove anomalous preferences provided by users. Experiments show that the application of the procedure as a preprocessing step improves the performance of a data-mining task associated with the recommendation and also effectively detects the anomalous preferences.

• KIEAE Journal
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• 제12권6호
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• pp.69-75
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• 2012

Because the demand or sensitivity of users of space has an important influence on the direction of design concerning indoor greening, this study examined the customers' preferences and trends for use in this field. By analyzing the results, types of space for indoor greening that can be utilized as indoor greening design such as vegetation selection, space positioning, design types, etc. were derived. The research and analysis was set for living space, business space, commercial space and public space. For each space, there were vegetations in over 50% of the space, and in all the spaces, the majority of people were of the positive opinion. As the desired space for the introduction of indoor greening, high levels of preference were seen in the following areas: 'veranda' and 'living room' for the residential space; 'main work space' and 'resting space' for the office space; and 'rest area,' 'entrance area' and 'lobby area' for the public space and commercial space. The preference of each of the spaces displayed slightly different trends in accordance with the characteristics of space and users. If indoor greening space were to be designed for these spaces according to the types, which are derived from the preference levels examined in this study, it is deemed that the satisfaction levels of users of the spaces could be increased.

• Structural Engineering and Mechanics
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• 제74권1호
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• pp.83-90
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• 2020

Several classical and higher order plate theories were used to study the buckling of functionally graded material (FGM) plates. In the great majority of research, a power function is used to represent metal and ceramic material transverse distribution (P-FGM). Therefore, the effect of having other transverse variation of material properties on the buckling behavior of thick rectangular FGM plates was not properly addressed. In the present work, this effect is investigated using the Third order Shear Deformable Theory (TSDT) for the case of simply supported FGM plate. Both a sigmoid function and an exponential functions are used to represent the transverse gradual property variation. The plate governing equations are combined with a Navier type expanded solution of the unknown displacements to derive the buckling equation in terms of the pre-buckling in-plane loads. Finally, the critical in-plane load is calculated for the different buckling modes. The model is verified by a comparison of the calculated buckling loads with available published results of Al-SiC P-FGM plates. The conducted parametric study shows that manufacturing FGM plates with sigmoid variation of properties in the thickness direction increases the buckling load considerably. This improvement is found to be more significant for the case of thick plates than that of thin plates. Results also show that this stiffening-like effect of the sigmoid function profile is more evident for cases where the in-plane loads are applied along the shorter edge of the plate.

• 비교문화연구
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• 제32권
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• pp.133-166
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• 2013

Using the observation technique and in-depth interview, the current study compared various aspects of multicultural education between Korea and Canada and suggested the direction Korea's multicultural education needs to take. As a part of class curriculum, the researcher interviewed the representative of Ansan Foreign Center (AFC) and the president of the Kosian's House, a NGO for multicultural educations. The observations and experiences of the researcher were also used in this study. The results of the current study are as follows. First, multicultural education is provided for the minority group in Korea, whereas multiculturalism is included and taught for every student in Canada. In addition, the current multicultural education of Korea focuses on language and culture acquisition to help the students to adjust. Canada, on the other hand, focuses on accepting other cultures and ethnic equality, creating both identities as their ethnic origin and as Canadians. Second, in language educations, both countries had students enrolled in lower school years than their age. However, the differences occurred in terms of emotional support and availability of expert teachers. Third, comparing teacher's attitude towards multicultural education, Korean teachers were not free from perceiving the multicultural student as 'different', whereas Canadian teachers have been taught since little to consider multicultural students as Canadians, but accept their ethnic backgrounds. Based on the results, the current study suggested multicultural education program for the majority group, increase in number of expert language teachers and teaching assistants, and an education program to teach multiculturalism as part of an identity of humankind. The limitations and suggestions for future studies were provided afterwards.

• International Journal of Advanced Culture Technology
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• 제9권1호
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• pp.121-128
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• 2021

In this study, we aim to suggest direction for landscape design of residential complex in Korea by studying target areas to understand how landscape urbanism was applied to residential landscape design as it is the majority of landscape design in Korea and by closely examining design elements to be considered for design of residential complex based on landscape urbanism theory. For the purpose of the study, some of public multifamily housing complex were selected as target areas and a survey was first conducted to understand how landscape urbanism was applied to design of these target areas. Then, by analyzing the survey results, we identified which elements were of importance to designing of multifamily housing complexes in Korea and how practical design of landscape urbanism works. From this study, we concluded that landscape urbanism theory is not just about design strategies, but more of comprehensive design methodology covering both operation and management and that such theory can be appropriately applied to design of multi-housing complexes in Korea. We also discovered that in order to apply landscape urbanism in design stage for multi-housing complex, selecting which design strategy/words in the previous study is not what's important, but comprehensive understanding and interpretation of design languages is key.

• 한국IT서비스학회지
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• 제21권4호
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• pp.75-90
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• 2022

From the past to the present, reviews have had much influence on consumers' purchasing decisions. Companies are making various efforts, such as introducing a review incentive system to increase the number of reviews. Recently, as various types of reviews can be left, reviews have begun to be recognized as interesting new content. This way, reviews have become essential in creating loyal customers. Therefore, research and utilization of reviews are being actively conducted. Some studies analyze reviews to discover customers' needs, studies that upgrade recommendation systems using reviews, and studies that analyze consumers' emotions and attitudes through reviews. However, research that predicts the future using reviews is insufficient. This study used a dataset consisting of two reviews written in pairs with differences in usage periods. In this study, the direction of consumer product evaluation is predicted using KoBERT, which shows excellent performance in Text Deep Learning. We used 7,233 reviews collected to demonstrate the excellence of the proposed model. As a result, the proposed model using the review text and the star rating showed excellent performance compared to the baseline that follows the majority voting.

• 한국과학교육학회지
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• 제27권4호
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• pp.328-336
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• 2007

In this research we conducted a survey on the actual status of the 7th National Earth Science I & II curriculum to explore ways of revising the next Earth Science curriculum for better education. Of the 180 Earth Science teachers, 60% responded to the survey. The domains of the survey consist of (1) the necessity of Earth Science I & II curriculum revision, (2) educational goals, (3) content coverage, (4) level of difficulty and students' interest for Earth Science content, and (5) ways to overcome the crisis of Earth Science education. Majority of the respondents demanded the revision of Earth Science I, II curriculum because of overlapping and repetition of contents among 10th grade science and Earth Science I and overcrowded Earth Science II contents. Based on the survey results, recommendations on how to improve Earth Science I, II curriculum and how to adjust Earth Science contents are suggested. In addition to curriculum improvement, systematic supports are required for Earth science not to be excluded and turned down by the student and the scholastic aptitude test for university admission.

• International Journal of Computer Science & Network Security
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• 제24권3호
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• pp.196-200
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• 2024

Weather forecasting is considered to be of utmost important among various important sectors such as flood management and hydro-electricity generation. Although there are various numerical methods for weather forecasting but majority of them are reported to be Mechanistic computationally demanding due to their complexities. Therefore, it is necessary to develop and build models for accurately predicting the weather conditions which are faster as well as efficient in comparison to the prevalent meteorological models. The study has been undertaken to forecast various atmospheric parameters in the city of Bangalore using Naïve Bayes algorithms. The individual parameters analyzed in the study consisted of wind speed (WS), wind direction (WD), relative humidity (RH), solar radiation (SR), black carbon (BC), radiative forcing (RF), air temperature (AT), bar pressure (BP), PM₁₀ and PM_2.5 of the Bangalore city collected from Air Quality Monitoring Station for a period of 5 years from January 2015 to May 2019. The study concluded that Naive Bayes is an easy and efficient classifier that is centered on Bayes theorem, is quite efficient in forecasting the various air pollution parameters of the city of Bangalore.

• 대한수학교육학회지:수학교육학연구
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• 제23권2호
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• pp.135-152
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• 2013

본 연구의 목적은 중학교 교과서에 나타난 수직선 표기법에 대한 체계적인 분석을 통해 수직선 및 좌표평면 표기의 가장 바람직한 방향을 탐색하는 것이다. 이를 위해 본 연구에서는 첫째, 우리나라 중학교 수학교과서와 외국의 수학교과서에 나타난 수직선 기호 표기에 대해 비교하였다. 둘째, 수직선 표기가 역사적으로 어떻게 변화되었는지 두 가지 관점에서 분석하였다. 하나는 제1차 교육과정부터 2007개정 교육과정까지의 교과서를 분석하였고, 다른 하나는 1637년 Descartes 이래 출판된 문헌에 대한 분석을 실시하였다. 셋째, 수직선 표기의 타당한 방법을 제시하였다. 기호언어학적 측면에서 수직선 기호를 분석한 결과 수직선 표기는 한쪽 화살표만을 사용하는 것이 옳은 표기로 판단된다. 본 연구의 결과로부터 수직선 및 좌표평면의 올바른 사용법에 대한 충분한 논의가 있기를 기대된다.