• Title/Summary/Keyword: normalization

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Isolated-Word Speech Recognition using Variable-Frame Length Normalization (가변프레임 길이정규화를 이용한 단어음성인식)

  • Sin, Chan-Hu;Lee, Hui-Jeong;Park, Byeong-Cheol
    • The Journal of the Acoustical Society of Korea
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    • v.6 no.4
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    • pp.21-30
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    • 1987
  • Length normalization by variable frame size is proposed as a novel approach to length normalization to solve the problem that the length variation of spoken word results in a lowing of recognition accuracy. This method has the advantage of curtailment of recognition time in the recognition stage because it can reduce the number of frames constructing a word compared with length normalization by a fixed frame size. In this paper, variable frame length normalization is applied to multisection vector quantization and the efficiency of this method is estimated in the view of recognition time and accuracy through practical recognition experiments.

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The Effects of the Postural Movement Normalization and Eye Movement Program on the Oculomotor Ability of Children With Cerebral Palsy (자세·움직임 정상화 및 안구운동 프로그램이 뇌성마비아동의 안구운동 기능에 미치는 효과)

  • Han, Dong-Wook;Kong, Nam-Ho
    • Physical Therapy Korea
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    • v.14 no.3
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    • pp.32-40
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    • 2007
  • Although many children with cerebral palsy have problems with their eye movements available data on its intervention is minimal. The purpose of the study was to determine the effectiveness of the postural movement normalization and eye movement program on the oculomotor ability of children with cerebral palsy. Twenty-four children with cerebral palsy (12 male and 12 female), aged between 10 and 12, were invited to partake in this study. The subjects were randomly allocated to two groups: an experimental group received the postural movement normalization and eye movement program and a control group which received conventional therapy without the eye movement program. Each subject received intervention three times a week for twelve weeks. The final measurement was the ocular motor computerized test before and after treatment sessions through an independent assessor. Differences between the experimental group and control group were determined by assessing changes in oculomotor ability using analysis of covariance (ANCOVA). The changes of visual fixation (p<.01), saccadic eye movement (p<.01) and pursuit eye movement (p<.01) were significantly higher in the experimental group than in the control group. These results show that the postural movement normalization and eye movement program may be helpful to treat children with cerebral palsy who lose normal physical and eye movement.

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Effectiveness of Normalization Pre-Processing of Big Data to the Machine Learning Performance (빅데이터의 정규화 전처리과정이 기계학습의 성능에 미치는 영향)

  • Jo, Jun-Mo
    • The Journal of the Korea institute of electronic communication sciences
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    • v.14 no.3
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    • pp.547-552
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    • 2019
  • Recently, the massive growth in the scale of data has been observed as a major issue in the Big Data. Furthermore, the Big Data should be preprocessed for normalization to get a high performance of the Machine learning since the Big Data is also an input of Machine Learning. The performance varies by many factors such as the scope of the columns in a Big Data or the methods of normalization preprocessing. In this paper, the various types of normalization preprocessing methods and the scopes of the Big Data columns will be applied to the SVM(: Support Vector Machine) as a Machine Learning method to get the efficient environment for the normalization preprocessing. The Machine Learning experiment has been programmed in Python and the Jupyter Notebook.

A Study on the Negotiation on Management Normalization of GM Korea through the Two-Level Games (양면게임 이론으로 분석한 한국GM 경영정상화 협상연구)

  • Lee, Ji-Seok
    • Korea Trade Review
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    • v.44 no.1
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    • pp.31-44
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    • 2019
  • This study examines the normalization of Korean GM management between the Korean government and GM in terms of external negotiation game and internal negotiation game using Putnam's Two-Level Games. In addition, GM's Win-set change and negotiation strategy were analyzed. This analysis suggested implications for the optimal negotiation strategy for mutual cooperation between multinational corporations and local governments in the global business environment. First, the negotiation strategy for Korea's normalization of GM management in Korea can be shifted to both the concession theory and the opposition theory depending on the situation change and the government policy centered on the cautious theory. Second, GM will maximize its bargaining power through 'brink-end tactics' by utilizing the fact that the labor market is stabilized, which is the biggest weakness of the Korean government, while maintaining a typical Win-set reduction strategy. GM will be able to restructure at any time in terms of global management strategy, and if the financial support of the Korean government is provided, it will maintain the local factory but withdraw the local plant at the moment of stopping the support. In negotiations on the normalization of GM management in Korea, it is necessary to prepare a problem and countermeasures for various scenarios and to maintain a balance so that the policy does not deviate to any one side.

Scalogram and Switchable Normalization CNN(SN-CNN) Based Bearing Falut Detection (Scalogram과 Switchable 정규화 기반 합성곱 신경망을 활용한 베이링 결함 탐지)

  • Delgermaa, Myagmar;Kim, Yun-Su;Seok, Jong-Won
    • Journal of IKEEE
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    • v.26 no.2
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    • pp.319-328
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    • 2022
  • Bearing plays an important role in the operation of most machinery, Therefore, when a defect occurs in the bearing, a fatal defect throughout the machine is generated. In this reason, bearing defects should be detected early. In this paper, we describe a method using Convolutional Neural Networks (SN-CNNs) based on continuous wavelet transformations and Switchable normalization for bearing defect detection models. The accuracy of the model was measured using the Case Western Reserve University (CWRU) bearing dataset. In addition, batch normalization methods and spectrogram images are used to compare model performance. The proposed model achieved over 99% testing accuracy in CWRU dataset.

Layer Normalized LSTM CRFs for Korean Semantic Role Labeling (Layer Normalized LSTM CRF를 이용한 한국어 의미역 결정)

  • Park, Kwang-Hyeon;Na, Seung-Hoon
    • Annual Conference on Human and Language Technology
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    • 2017.10a
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    • pp.163-166
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    • 2017
  • 딥러닝은 모델이 복잡해질수록 Train 시간이 오래 걸리는 작업이다. Layer Normalization은 Train 시간을 줄이고, layer를 정규화 함으로써 성능을 개선할 수 있는 방법이다. 본 논문에서는 한국어 의미역 결정을 위해 Layer Normalization이 적용 된 Bidirectional LSTM CRF 모델을 제안한다. 실험 결과, Layer Normalization이 적용 된 Bidirectional LSTM CRF 모델은 한국어 의미역 결정 논항 인식 및 분류(AIC)에서 성능을 개선시켰다.

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Classification of Pathological Voice Using Artigicial Neural Network with Normalized Parameters

  • Li, Tao;Bak, Il-Suh;Jo, Cheol-Woo
    • Speech Sciences
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    • v.11 no.1
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    • pp.21-29
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    • 2004
  • In this paper we examined the effect of normalization on discriminating the pathological voice into normal and abnormal classes using artificial neural network. Average values per each parameter were used to normalize each set of parameter values. Artificial neural networks were used as classifiers. And the effect of normalization was evaluated by comparing the discrimination results between original and normalized parameter sets.

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Layer Normalized LSTM CRFs for Korean Semantic Role Labeling (Layer Normalized LSTM CRF를 이용한 한국어 의미역 결정)

  • Park, Kwang-Hyeon;Na, Seung-Hoon
    • 한국어정보학회:학술대회논문집
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    • 2017.10a
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    • pp.163-166
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    • 2017
  • 딥러닝은 모델이 복잡해질수록 Train 시간이 오래 걸리는 작업이다. Layer Normalization은 Train 시간을 줄이고, layer를 정규화 함으로써 성능을 개선할 수 있는 방법이다. 본 논문에서는 한국어 의미역 결정을 위해 Layer Normalization이 적용 된 Bidirectional LSTM CRF 모델을 제안한다. 실험 결과, Layer Normalization이 적용 된 Bidirectional LSTM CRF 모델은 한국어 의미역 결정 논항 인식 및 분류(AIC)에서 성능을 개선시켰다.

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On the Signal Power Normalization Approach to the Escalator Adaptive filter Algorithms

  • Kim Nam-Yong
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.31 no.8C
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    • pp.801-805
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    • 2006
  • A normalization approach to coefficient adaptation in the escalator(ESC) filter structure that conventionally employs least mean square(LMS) algorithm is introduced. Using Taylor's expansion of the local error signal, a normalized form of the ESC-LMS algorithm is derived. Compared with the computational complexity of the conventional ESC-LMS algorithm employs input power estimation for time-varying convergence coefficient using a single-pole low-pass filter, the computational complexity of the proposed method can be reduced by 50% without performance degradation.

A Study on the Performance Comparison of GAN Model According to the Normalization Techniques (정규화 기법 적용에 따른 GAN 모델의 성능 비교 연구)

  • Kwak, Jeonggi;Ko, Hanseok
    • Proceedings of the Korea Information Processing Society Conference
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    • 2019.10a
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    • pp.861-863
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    • 2019
  • 사람 얼굴 생성을 목적으로 하는 Generative Adversarial Network(GAN)에서 판별자(discriminator)의 각 레이어에 대한 스펙트럴 정규화(spectral normalization) 적용에 따른 출력 이미지의 결과를 비교하였다. 또한 생성자(generator)에 적응 인스턴스 정규화(Adaptive Instance Normalization) 모듈의 삽입에 따른 출력 이미지의 결과를 기존 모델과 비교하고 분석하였다.