• Title/Summary/Keyword: 비율 함수

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Data for the Application of Depreciation Method Using the Accumulated Depreciation Rate Function (감가상각누적비율함수를 이용한 감가상각방법의 활용을 위한 자료)

  • Sohn, Jinhyeon
    • The Journal of the Korea Contents Association
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    • v.15 no.1
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    • pp.519-526
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    • 2015
  • This article presents detailed explanations of the depreciation method using the accumulated depreciation rate function(ADRF) proposed by the author previously, for the practical application. ADRF provides a value of accumulated depreciation rate on the total depreciation charge at any given time, therefore it can be used in a time-based depreciation method. Since the depreciation charge of each period can be systematically computed with ADRF, in every case where the charge is constant or decreasing or increasing, we can choose diverse rational depreciation types for the characteristic of every asset. Also, since the ADRF is the continuous function of time, we can compute the depreciation charge with consistency in cases where assets are owned for partial period. However, we should determine the value of parameter of ADRF. We give some data on the problem.

Formulating the Local Displacement and Local Moments of a Plate Stiffened with Open Ribs According to the Loading Sizes (재하 크기에 따른 개단면 리브 보강판의 국부 처짐과 국부 모멘트의 정형화)

  • Chu, Seok Beom
    • Journal of Korean Society of Steel Construction
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    • v.25 no.3
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    • pp.267-278
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    • 2013
  • In this study, stiffened plates with open ribs are analyzed to estimate and formulate the local displacement and local moments according to square loading sizes. For the local behaviors of plates stiffened with rectangular and reverse T ribs, the ratio functions according to the dimensions of stiffened plates are obtained at each square loading size. Analytical results show that values of the basic stiffened plates are different but the ratio functions of each square loading size are similar and the difference of the ratio functions between rectangular ribs and reverse T ribs are small, so the ratio functions can be unified by integrating the loading sizes regardless of the rib type. The application of the unioned ratio functions to L type ribs and rectangular loading shows good accuracies. Therefore, the local behaviors of plates stiffened with open ribs can easily be obtained by using the unioned ratio functions proposed in this study.

Formulating the Local Displacement and Local Moments of a Plate Stiffened with Open Ribs According to the Dimensions of Stiffened Plates (보강판 제원에 따른 개단면 리브 보강판의 국부 처짐과 국부 모멘트의 정형화)

  • Chu, Seok Beom
    • Journal of Korean Society of Steel Construction
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    • v.24 no.6
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    • pp.659-670
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    • 2012
  • The purpose of this study is to formulate the local displacement and moments of a plate stiffened with open ribs according to the dimensions of stiffened plates. Analyzed results of various plates stiffened with rectangular and reverse T ribs show that the effect of the lower flange to the local behavior is very small, so the local behavior can be expressed by ratio functions of the rib space, web thickness, web height and plate thickness and the ratio functions of rectangular and reverse T ribs can be unioned. The application of ratio functions to other types of stiffened plates shows that the increment of the error ratio is so small compared with examples of this study that the applicability of this study is proved.

한의학에서의 사상체질판별함수 개발에 관한 연구 (II) - 도수분석에 의한 변수선택 -

  • Kim, Gyu-Gon;Jo, Min-Hyeong
    • 한국데이터정보과학회:학술대회논문집
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    • 2004.04a
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    • pp.69-77
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    • 2004
  • 본 논문에서는 한방병원에서 사상체질분류검사설문지를 이용하여 사상체질을 진단할 때 진단의 정확도를 향상시키기 위한 사상체질분류함수를 개발하기 위하여 데이터마이닝에서의 판별분석모형을 이용한다. 데이터 정제 과정에서 양질의 데이터를 확보하기 위한 기준은 상반되는 설문의 응답 패턴과 체질별 설문의 응답 비율을 이용하며, 변수선택의 기준은 도수분석의 비율차이검정과 선형판별함수의 계수를 이용한다.

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The Local Behavior Characteristics of a Plate Stiffened with Closed Ribs (폐단면 리브 보강판의 국부 거동 특성)

  • Chu, Seok Beom
    • Journal of Korean Society of Steel Construction
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    • v.26 no.4
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    • pp.277-288
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    • 2014
  • In this study, the local displacement and moment characteristics of a plate stiffened with closed ribs are analyzed according to the dimensions of stiffened plates. The analyzed results of various stiffened plates under square distributed load show that the effect of the loading panel width to the local behavior is dominant but that of the next panel width is very small. And the local behavior of reference stiffened plates can be expressed by the angle between the plate and the rib, and that of other stiffened plates can be obtained by multiplying ratio functions of the loading panel width, plate thickness, rib thickness, rib height and next panel width and they give good results. Applying ratio functions to other loading sizes shows that the applicability of ratio functions except for the loading panel width is proved and the modified ratio functions of the loading panel width improve error ratios. Therefore, the local displacement and moments of a plate stiffened with closed ribs can easily achieve proper results regardless of the dimensions using ratio functions proposed in this study.

Confidence Intervals for a Linear Function of Binomial Proportions Based on a Bayesian Approach (베이지안 접근에 의한 모비율 선형함수의 신뢰구간)

  • Lee, Seung-Chun
    • The Korean Journal of Applied Statistics
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    • v.20 no.2
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    • pp.257-266
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    • 2007
  • It is known that Agresti-Coull approach is an effective tool for the construction of confidence intervals for various problems related to binomial proportions. However, the Agrest-Coull approach often produces a conservative confidence interval. In this note, confidence intervals based on a Bayesian approach are proposed for a linear function of independent binomial proportions. It is shown that the Bayesian confidence interval slightly outperforms the confidence interval based on Agresti-Coull approach in average sense.

Compression and Acceleration of Face Detector using L1 Loss and Channel Pruning (L1 목적 함수와 채널 프루닝을 이용한 얼굴 검출기 경량화)

  • Lee, Seok Hee;Jang, Young Kyun;Cho, Nam Ik
    • Proceedings of the Korean Society of Broadcast Engineers Conference
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    • 2020.07a
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    • pp.40-42
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    • 2020
  • 본 논문에서는 합성곱 기반의 얼굴 검출기 Dual Shot Face Detector (DSFD)에 대하여, 특징점 맵의 희소화와 채널 프루닝 목적 함수를 사용하여 네트웍 경량화를 수행하였다. 특징점 맵을 희소화하기 위해 L1 목적 함수를 사용했고, 특징점 맵의 채널 프루닝을 하기 위해 채널 최대값이 가장 낮은 채널들의 합을 최소화 시키는 목적함수를 적용했다. 기존의 신경망은 특징점 맵 희소화 비율이 45%였고 두 목적 함수를 적용했을 때 69.67% 로 희소화 비율이 높아진 것을 확인했다. 얼굴 검출 성능을 다양한 조명, 크기, 환경, 각도, 표정의 얼굴들을 포함하는 영상들로 이뤄진 Wider Face 데이터 셋으로 실험한 결과, average precision은 하락 했고 easy validation set에서 0.9257, hard validation set에서 0.8363 였다.

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Analysis on High School Students' Recognitions and Expressions of Changes in Concentration as a Rate of Change (변화율 관점에서 농도 변화에 대한 인식과 표현의 변화 과정에 대한 분석)

  • Lee, Dong Gun;Kim, Suk Hui;Ahn, Sang Jin;Shin, Jae Hong
    • Journal of Educational Research in Mathematics
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    • v.26 no.3
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    • pp.333-354
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    • 2016
  • The aim of the present study is twofold. One is to confirm a hypothesis that a student's rate concept influences her conceiving change of a function in the view of rate of change and the other is to build up foundations for understanding the transition process from her rate concept to the concept of rate of change when she investigates the change of concentration as an intensive quantity. We explored how three participating high school students recognized and expressed change of given functions by using their rate concept as a conceptual tool. The result indicates that a change in students' rate concept might have an effect on understanding how function values change in term of rate of change. We also expect that it could be a catalyst for further research for clarifying the relationship between students' rate concept and their development of a concept of rate of change as a foundation for learning calculus.

Color Channel Compensating L1 Loss Algorithm (색의 채널을 보상하는 L1 손실 알고리즘)

  • Kim, Bumsik;Lee, Seongjin
    • Proceedings of the Korean Society of Computer Information Conference
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    • 2020.01a
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    • pp.25-26
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    • 2020
  • 본 논문에서는 머신러닝을 이용한 이미지 생성을 위한 새로운 오차 함수모델을 제안한다. 제안된 함수모델은 기존 오차함수가 반영하지 못하던 채널 간 오차비율정보를 반영하여 기존 오차함수에 비해 빠른 초기 수렴속도와 더 좋은 FID값을 보인다. 본 논문에서는 하나의 네트워크 모델을 통해 기존의 오차함수모델에 비해서 우수함을 보인다.

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한의학에서의 사상체질판별함수 개발에 관한 연구 (I) - 크론박 알파 계수에 의한 변수선택 -

  • Kim, Gyu-Gon;Choi, Seung-Bae
    • 한국데이터정보과학회:학술대회논문집
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    • 2004.04a
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    • pp.61-68
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    • 2004
  • 본 논문에서는 한방병원에서 사상체질분류검사설문지를 이용하여 사상체질을 진단할 때 진단의 정확도를 향상시키기 위한 사상체질분류함수를 개발하기 위하여 데이터마이닝에서의 판별분석모형을 이용한다. 데이터 정제 과정에서 불성실한 응답자를 제거시키기 위한 기준은 상반되는 설문의 응답 패턴과 체질별 설문의 응답 비율을 이용하며, 변수선택의 기준은 상관분석의 크론박 알파 계수와 선형판별함수의 계수를 이용한다.

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