• 한국수학교육학회지시리즈B:순수및응용수학
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• 제19권1호
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• pp.7-21
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• 2012

The fuzzy time series is introduced by Song and Chissom([8]) to construct a pattern for time series with vague or linguistic value. Many methods using the interval and fuzzy logical relationship related with historical data have been suggested to enhance the forecasting accuracy. But they do not fully reflect the fluctuation of historical data. Therefore, we propose the interval rearranged method to reflect the fluctuation of historical data and to improve the forecasting accuracy of fuzzy time series. Using the well-known enrollment, the proposed method is discussed and the forecasting accuracy is evaluated. Empirical studies show that the proposed method in forecasting accuracy is superior to existing methods and it fully reflects the fluctuation of historical data.

• 대한음성학회지:말소리
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• 제66호
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• pp.105-116
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• 2008

In this research, we propose a speaker identification system using a kernel method which is expected to model the non-linearity of speech features well. We have been using principal component analysis (PCA) successfully, and extended to kernel PCA, which is used for many pattern recognition tasks such as face recognition. However, we cannot use kernel PCA for speaker identification directly because the storage required for the kernel matrix grows quadratically, and the computational cost grows linearly (computing eigenvector of $l{\times}l$ matrix) with the number of training vectors I. Therefore, we use greedy kernel PCA which can approximate kernel PCA with small representation error. In the experiments, we compare the accuracy of the greedy kernel PCA with the baseline Gaussian mixture models using MFCCs and PCA. As the results with limited enrollment data show, the greedy kernel PCA outperforms conventional methods.

• 기술혁신학회지
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• 제2권2호
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• pp.309-325
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• 1999

If we want to overcome the current IMF-guarded economic situations as early as possible and to change the present industry structure to the new knowledge-based structure, it is a great necessity to increase the capability of technology innovation as a key factor of the international competitiveness, and to establish the infrastructure of venture business for increasing utilization of technologly and patent. Even though there has been a great increase in application and enrollment of the Industrial Property Rights (i.e. IPRs) including patent recently, the number of unused IPRs are increasing progressively every year (for example, the ratio of unused patent is about 60% in 1997), and illegal use of patent and dependance on the foreign patent are increasing sharply. This paper will suggest policy on nurturing venture business for increasing utilization of the unused IPRs, including technology transaction strategy and link strategy of the high-tech industries between metro Taejon and Chungcheong Area.

• Asian Pacific Journal of Cancer Prevention
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• 제14권12호
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• pp.7707-7711
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• 2013

Aims: To evaluate breast self examination (BSE) practice and the effect of a training program conducted by healthcare professionals on BSE. Materials and Methods: Women were randomized into control and test groups with both groups completing a questionnaire and three independent interviews where their BSE practices were evaluated. Results: In all, 39.5% of the participants were previously provided information on BSE by healthcare professionals while 25.8% had no knowledge of BSE prior to enrollment. Compared to those informed about BSE through other means such as television, radio, and the internet, the scores of the first, second, and third visits were higher (p<0.05) in individuals who received BSE education from healthcare professionals and hospitals. Conclusions: BSE training provided by healthcare professionals may increase early breast cancer diagnosis and treatment rates by improving BSE awareness and practice.

• 한국항해항만학회지
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• 제33권4호
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• pp.283-288
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• 2009

To improve maritime security and enhance international shipping commerce within US ports in addition to ISPS (International Ship and Port Facility Security Code), the TWIC (Transportation Worker Identification Credential) program is working on the maritime field from the October 15, 2008 in the United States. In this paper, the program is reviewed and investigated in terms of goal, benefit, solution, and related legislation so forth In addition, other maritime security programs including MMD (Merchant Mariner Document), FAST (Free and Secure Trade), SIDA (Security Identification Display Areas). and Air Cargo security program was analyzed and compared in order to obtain relationship and difference with the program in terms of enrollment frequency, list and method of security check, and profile of each program As a result of this paper, the program is mostly to improve maritime security, protect individual privacy, and enhance commerce rather than other programs.

• 한국도서관정보학회지
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• 제26권
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• pp.23-56
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• 1997

The purpose of this study is put emphasis on the importance of the library statistics. e. g., more than ten related current library statistics were inaccurated each other, so whole of statistic figures is not to be trusted. This research is make an attempt to more accurate information about library situations. Especially, with special reference to basic library statistics in the [Bulletin of National & College University libraries](Vol. 1-14, 1983-96, published by Council on National College & University Libraries), take the 24 major factors to compare and evaluate with 46 national and public university libraries. Analyzing 24 factors including 5 subjects. These subjects are as follows: 1) Total numbers of staffs with faculty members and students enrollment 2) Whole library collection of monographs and serial and publishcations. 3) Annual university budgets and library material expenditures. 4) Library facilities and building square measure. 5) Library service situation with circulation, inter-library loan/borrow and monograph D/B build up.

• KDI Journal of Economic Policy
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• 제23권1_2호
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• pp.193-231
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• 2001

The purpose of this study is to clarify the real causes of gender wage differentials in Korea by analyzing changes over the period from 1984 to 1999. The participation rate of women in the Korean labor force has gradually increased since 1963, reaching 47.4 percent as of 1999. This increase can be attributed to more active participation by women of all ages, except those aged 15-19, as a result of their enrollment in higher level education. In particular, a remarkable rise in labor market participation was achieved by those aged 25-29. On the other hand, the ratio of female workers earnings to that of male workers has increased from 45.1 percent in 1972 to 63.1 percent in 1999. However, when the gender wage differentials are decomposed into various factors, it is found that discrimination components against female workers, compared to the skills or productivity characteristics, played a greater role for the 1994 to 1999 period.

• 음성과학
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• 제10권2호
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• pp.35-43
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• 2003

General speaker verification systems improve their recognition performances by normalizing log likelihood ratio, using a speaker model and its background speaker model that are required to be verified. So these systems rely heavily on the availability of much speaker independent databases for background speaker model design. This constraint, however, may be a burden in practical and portable devices such as palm-top computers or wireless handsets which place a premium on computations and memory. In this paper, new approach for the GMM-based background model design used in portable speaker verification system is presented when the enrollment data is available. This approach is to modify three parameters of GMM speaker model such as mixture weights, means and covariances along with reduced mixture order. According to the experiment on a 20 speaker population from YOHO database, we found that this method had a promise of effective use in a portable speaker verification system.

• 한국수학교육학회지시리즈D:수학교육연구
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• 제10권1호
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• pp.49-54
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• 2006

Special educations for gifted students have not been given enough attention in Japan with a little exception. Indeed, such educations were sometimes despised in Japan by teachers and parents as well as by boards of education, because one of the features of postwar education system in Japan was an excessive egalitarianism. The other is cramming of knowledge in school education, which is necessary for high school graduates to pass entrance examinations for famous universities such as University of Tokyo, or Kyoko University. However, in 1997, some trials of special educations for gifted students started. The Ministry of Education, Sports, Culture, Science and Technology admitted 'skipping a year to enter universities.' In this paper, the following three topics would be discussed. 1. Enrollment of high school students aged 17 into Chiba University. 2. Summer seminars conducted by Japan Mathematics Foundation of Olympiad. 3. Super Science High School Program funded by the Ministry of Education.

• 보건교육건강증진학회지
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• 제28권5호
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• pp.73-82
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• 2011

Objectives: This study is to gain an understanding of the characteristics of suicides committed by university students in Korea by assessing news reports. Methods: A total of 97 news reports on university student suicides on daily newspapers and TV newscasts from 2000 to 2011 are included in this study. Analyses were performed on sociodemographic characteristics of suicided university students and temporal and other characteristics of the suicides. Results: Suicide rate was higher among males than females. The most frequently used method of suicide was jumping off while the most common place was the students’ residence. Issues related to academic and financial problems topped as the reasons for suicide. There were no differences in the reasons for committing suicide by school year and enrollment, but the location and season of committing suicide differed by reasons for suicide. Conclusions: Implication of this study, discussion on the results and suggestions for suicide prevention are discussed.