• Title/Summary/Keyword: KoreaMed

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Adaptive Kernel Estimation for Learning Algorithms based on Euclidean Distance between Error Distributions (오차분포 유클리드 거리 기반 학습법의 커널 사이즈 적응)

  • Kim, Namyong
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.22 no.5
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    • pp.561-566
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    • 2021
  • The optimum kernel size for error-distribution estimation with given error samples cannot be used in the weight adjustment of minimum Euclidean distance between error distributions (MED) algorithms. In this paper, a new adaptive kernel estimation method for convergence enhancement of MED algorithms is proposed. The proposed method uses the average rate of change in error power with respect to a small interval of the kernel width for weight adjustment of the MED learning algorithm. The proposed kernel adjustment method is applied to experiments in communication channel compensation, and performance improvement is demonstrated. Unlike the conventional method yielding a very small kernel calculated through optimum estimation of error distribution, the proposed method converges to an appropriate kernel size for weight adjustment of the MED algorithm. The experimental results confirm that the proposed kernel estimation method for MED can be considered a method that can solve the sensitivity problem from choosing an appropriate kernel size for the MED algorithm.

SCREENING OF IN VITRO INHIBITORY EFFECTS OF 15 HERBAL MEDICINES ON CYP450 ISOFORMS

  • Shon, J.H.;Kim, M.J.;Park, J.Y.;Yoon, Y.R.;Chun, B.H.;Shin, J.G.
    • Proceedings of the Korean Society of Toxicology Conference
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    • 2001.05a
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    • pp.119-119
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    • 2001
  • Traditional herbal medicines(HM) are frequently taken in combination with conventional medications in Korea, but few reports have been addressed to herb-drug interaction. We assessed the inhibitory potential of 15 commonly used HMs in Korea on CYP450 isoforms.(omitted)

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Characteristic of MED measurement Value of Trial Subjects from Ultraviolet Irradiation (자외선 조사 피험자의 MED 측정 값의 특성에 관한 연구)

  • Suk, Jang Mi;Park, Shin Young;Choi, Mi Ra;An, Song Yi;Kim, In Soo;Kim, Beom Joon;Park, Jin O;Jung, Sang Wook
    • Journal of the Society of Cosmetic Scientists of Korea
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    • v.39 no.3
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    • pp.251-257
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    • 2013
  • In this study, ultraviolet protection factor (Sun Protection Factor, SPF) was investigated to provide basic data for subject safety and research of ultraviolet (UV) irradiation test in the future. Trial subjects (395 people) of skin type I, II, and III were evaluated according to skin type standard table. After measuring the skin color using a colorimeter, ITA (Individual Typology Angle) value was calculated. Subjects with 28 and above ITA value were positioned comfortably to be UV irradiated for 60 s and erythema was evaluated 24 hours after application. MED (Minimal Erythema Dose) was investigated where the minimal amount of erythema existed among UVB irradiated area. Statistical analysis was investigated using Statistical Package the Social Sciences program. As a result, the darker skin color results in the higher MED value since the higher skin type number results increased MED value and female has higher MED value than male since female has darker skin type than male. There was no relation between MED difference by ages in all different ages. However, it is hard to draw a conclusion as above since the number of subjects were not sufficient to support statistical significance for MED values by different ages. However, MED values by skin types obtained through this study can be used as a standard when MED value is expected to evaluate efficacy of sunscreen product and as basic data for further safety of clinical researches.

A Study on PubMed meta-data aggregator and dynamic RSS channel generator development (PubMed 메타데이터 수집기 및 동적 RSS 채널 생성기 개발 연구)

  • Kim, sun-tae;Kim, jay-hoon;Han, hee-jun;Hyeon, Mi-Hwan;Lee, Tae-Seok;Yae, yong-hee;Yeo, Il-Yeon;Yun, Hui-Jun
    • Proceedings of the Korea Contents Association Conference
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    • 2008.05a
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    • pp.832-835
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    • 2008
  • PubMed stands alone among database related to biomedical literature. On this thesis, PubMed meta-data at some point is collected and built. The service model which serve the dynamic RSS channel, one of the core services in an web2.0 era, is designed and developed. E-Utilities service(API) served by PubMed are analyzed. The meta-data aggregator and builder are developed. Also the dynamic RSS channel generator is developed and the method how it could be used in the RSS reader is suggested.

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The Utilization of Electronic Journal Files in the Production of an Abstract Database: A case of KoreaMed System (초록 데이터베이스 구축에 있어서 학술지 전자출판 파일의 활용과 문제점: KoreaMed를 중심으로)

  • 이춘실
    • Journal of the Korean BIBLIA Society for library and Information Science
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    • v.12 no.2
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    • pp.13-29
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    • 2001
  • The study examined the current status and the use of electronic publishing files to produce a bibliographic database. In particular . it examined the problems faced in the production of KoreaMed, an abstract database of Korean medical journals. The methodology of KoreaMed to utilize the computer files which was produced in the process of publication of a print journal is found to be very effective. It assures the accuracy of data, accelerates the input speeds, and reduces the input costs. However, such a project can not be accomplished to a satisfactory level without the cooperation of the publishers involved. It turns out that many small publishers and academic societies hardly have saved the electronic publishing files of previous issues. Besides, it is hard to maintain the right channel to receive the files continuously. The input and processing of special characters are very delicate problems. In addition, the diversity of layout and formats of journals, of the electronic publishing software used, and of the storage media, makes the utilization of the electronic publishing files a very complex process. In order to operate the KoreaMed system more efficiently by requiring the publishers to submit XML files which meets the standard of the KoreaMed, it is necessary to educate and train personnels of journal publishers for the management of electronic publishing files.

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