• Title/Summary/Keyword: environment adaptation

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Speaker Identification in Small Training Data Environment using MLLR Adaptation Method (MLLR 화자적응 기법을 이용한 적은 학습자료 환경의 화자식별)

  • Kim, Se-hyun;Oh, Yung-Hwan
    • Proceedings of the KSPS conference
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    • 2005.11a
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    • pp.159-162
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    • 2005
  • Identification is the process automatically identify who is speaking on the basis of information obtained from speech waves. In training phase, each speaker models are trained using each speaker's speech data. GMMs (Gaussian Mixture Models), which have been successfully applied to speaker modeling in text-independent speaker identification, are not efficient in insufficient training data environment. This paper proposes speaker modeling method using MLLR (Maximum Likelihood Linear Regression) method which is used for speaker adaptation in speech recognition. We make SD-like model using MLLR adaptation method instead of speaker dependent model (SD). Proposed system outperforms the GMMs in small training data environment.

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A Real-time Motion Adaptation Method using Spatial Relationships between a Virtual Character and Its Surrounding Environment

  • Jo, Dongsik;Choi, Myung Geol
    • Journal of the Korea Society of Computer and Information
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    • v.24 no.4
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    • pp.45-50
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    • 2019
  • Recently, character motion have been used extensively in the entertainment business, and researchers have investigated algorithms of reproducing, editing, and simulating mimic human movements. Also, many recent researches have suggested how a character interacts with its surrounding environment in terms of motion. Specially, spatial relationships of the environment have been introduced for adapting and preserving character motion. In this paper, we propose a motion adaptation technique preserving a spatial property between a virtual character and the configuration of its surrounding space. Additionally, we report on experimental results of smoothly adapted motions in various environmental structures with original motions such as walk, jump, and tumbling.

Body Comparison and Body Satisfaction Influence on Adaptation of Interpersonal Relationships and the Mediating Effects of Self-Esteem among Adolescents (청소년의 신체비교와 신체만족도가 대인관계적응에 미치는 영향과 자존감의 매개효과)

  • Wee, Eun Hah
    • Human Ecology Research
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    • v.53 no.2
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    • pp.209-218
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    • 2015
  • This study provides a basis for the development of lesson plans and teaching programs associated with the appearance in the adaptation of interpersonal relationships. This study was analyzed adolescents' body comparison and body satisfaction related in the adaptation of interpersonal relationships, and the effectiveness of self-esteem mediation. The survey was conducted among 587 adolescents in Gwangju. The data was analyzed using SPSS ver. 19.0 for Windows: frequency, means, factor analysis, Cronbach's ${\alpha}$, t-test, analysis of variance, Pearson correlation analysis, and regression analysis. The results indicated that body comparison and body satisfaction effected the adaptation of interpersonal relationships among adolescents consequently, it is necessary to develop lesson plans and teaching programs related to awareness, and improve appearance. A body comparison with similar aged people did not affect self-esteem; however, it is necessary to improve body satisfaction because it affects self-esteem. Self-esteem was also the mediating role between the adaptation of body satisfaction and interpersonal relationships, sub-factors, adaptation of relationships with friends, adaptation of relationship with teachers, adaptation of relationships with parents. It is important that body satisfaction and self-esteem is key factor in planning training programs, and improving the capacity of adolescents adaptation of interpersonal relationships.

Diagnosis of Office Occupant's Adaptation Level for Thermal Environment (사무실 근무자의 온열환경에 대한 적응수준 진단)

  • Kim, Yang-Weon
    • Korean Journal of Human Ecology
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    • v.12 no.5
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    • pp.747-754
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    • 2003
  • The actual clothing conditions were surveyed to diagnose clothing condition of Korean female in the view point of the adaptation to the thermal environment according to seasonal changes. Then, clothing microclimate, physiological responses, and subjective sensation were investigated through wearing trials on human body in climatic chamber based on the results from the survey. Factors to evaluate validity of clothing condition were clothing weight, clothing microclimate, physiological response of human body, and subjective sensation. The results were as follows: 1. Clothing weight per body surface area of the season was $856g/m^{2}$, $439g/m^{2}$ in summer, $630g/m^{2}$ in fall, and $1184g/m^{2}$ in winter. Cold - resistance of Korean female in office was superior to Japanese, inferior to residents of rural areas of Korea, and similar to male in office. However, in heat - resistance, female in office was inferior to residents of rural areas of Korea. 2. In spring, fall, winter, clothing microclimate temperature was a little higher than that in summer. Therefore, it was not a desirable wearing condition even though the clothing microclimate was comfortable zone. 3. Mean skin temperature of female in office was including within the range of Winslow's comfortable zone, but the range of comfortable zone in mean skin temperature of female was more narrow than Winslow's. Thus, it has problem for female to adaptation to thermal environment.

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Eigenvoice Adaptation of Classification Model for Binary Mask Estimation (Eigenvoice를 이용한 이진 마스크 분류 모델 적응 방법)

  • Kim, Gibak
    • Journal of Broadcast Engineering
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    • v.20 no.1
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    • pp.164-170
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    • 2015
  • This paper deals with the adaptation of classification model in the binary mask approach to suppress noise in the noisy environment. The binary mask estimation approach is known to improve speech intelligibility of noisy speech. However, the same type of noisy data for the test data should be included in the training data for building the classification model of binary mask estimation. The eigenvoice adaptation is applied to the noise-independent classification model and the adapted model is used as noise-dependent model. The results are reported in Hit rates and False alarm rates. The experimental results confirmed that the accuracy of classification is improved as the number of adaptation sentences increases.

Dynamic Climate Change Adaptation in Nomadic Lifestyle and its Implications (유목문화 기후변화 적응의 역동성과 그 함의)

  • Choi, Choongik
    • Journal of Environmental Policy
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    • v.12 no.3
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    • pp.73-96
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    • 2013
  • This aim is to explore the change of lifestyle caused by climate change and develop available adaptation policies against climate threats in Central Asia with the perspective of nomadism, which depends entirely on natural ecosystem. This article also attempts to pinpoint the dynamics between nomadic lifestyle and adaptation options for the resilience of nomadic community against climatic change threats. The adaptation options and opportunities as well as the impacts of land use change and nomadic pastoralists' lifestyle caused by climate change cannot be overemphasized. We suggest that nomadic lifestyle may aggravate the degree of vulnerability to climate change threats, whereas the capacity of nomad to successfully adapting to new environment in developing countries can be superior to that of settler lifestyle in one place in developed countries.

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The Impact of Climate Change on Agriculture and Adaptation in Nepal

  • Pandey, Chandra Lal
    • Agribusiness and Information Management
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    • v.4 no.1
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    • pp.13-23
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    • 2012
  • Understanding climate change is not only complex but also extensive. Humanity has never embarked on such a huge challenge of trans-national scope: a problem that began in the past continues now and will be continuing for a long time in the future. Nepalese have also significantly felt the impact of global climate change. The scenarios of climate change indicate that the increased temperatures will cause snow-melt which will result in floods, droughts, and uneven weather patterns. The impact of such unexpected climate hazards and weather patterns have already been felt and will continue to be felt in Nepal. These climate change-induced hazards and risks particularly threaten the agriculture sector, which results in food insecurity and makes poor and vulnerable people face increasingly unanticipated impacts to their lives and wellbeing. This paper explores the climate vulnerability of the Nepalese in terms of their physical, social, economic and primarily agricultural losses due to the increasing impact of climate change. The paper argues the need for a timely adaptation of measures to maintain an environment suitable for agriculture and for the well-being of the population residing in the area.

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Economic Analysis of Climate Change to Establish Effective Adaptation Policies (효율적 기후변화 적응대책 수립을 위한 기후변화의 경제학적 분석)

  • Chae, Yeo-Ra;Youm, Yoo-Na
    • Journal of Korean Society of Environmental Engineers
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    • v.32 no.9
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    • pp.818-829
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    • 2010
  • This paper provides an extensive overview of the literature on economic analysis of climate change, and thereby provides direction for effective adaptation policies for Korea. The paper first gives a comprehensive look on the estimation of economic costs of climate change as given by various research. Following, the paper examines the choice of measures that are used in the economic analysis of climate change by different sectors, including agriculture and human health. The paper also compares and discusses the various analytic results with a focus on Korea in order to shed light on where Korea stands. Finally, the paper examines current literature on adaptation polices in response to climate change, and by examining how such research has evolved and deepened with time, provide directions for the research on adaptation policies for Korea.

A Study on the Regulatory Supporting System of Housing Adaptations in order to improve Housing Welfare (주거복지를 위한 주택개조의 제도적 지원방안에 관한 연구)

  • Kim, Sang-Woon;Kim, Yong-Kun;Seong, Ki-Chang;Park, Kwang-Jae;Kang, Byoung-Keun
    • Journal of The Korea Institute of Healthcare Architecture
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    • v.18 no.2
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    • pp.19-31
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    • 2012
  • Even though there is an increasing recognition that "the disability comes from the ambient environment" and the increasing number of the disabled population, the housing environment for disabled people has not improved, though, having the existing inconvenient housing situation as it was before. Accordingly, have studied on the current situation of domestic housing adaptation projects to find out their problems and limits. Also studied on foreign housing support systems find out the operation system and organization factors which can be utilized when the housing adaptation support system is introduced. As this study has focused on the systematic support such as operation system in housing adaptation but not handled on the physical solutions such as the standard and method of housing adaptation, it has some limits as far as the comprehensive support system is concerned.

MRAS Based Speed Estimator for Sensorless Vector Control of a Linear Induction Motor with Improved Adaptation Mechanisms

  • Holakooie, Mohammad Hosein;Taheri, Asghar;Sharifian, Mohammad Bagher Bannae
    • Journal of Power Electronics
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    • v.15 no.5
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    • pp.1274-1285
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    • 2015
  • This paper deals with model reference adaptive system (MRAS) speed estimators based on a secondary flux for linear induction motors (LIMs). The operation of these estimators significantly depends on an adaptation mechanism. Fixed-gain PI controller is the most common adaptation mechanism that may fail to estimate the speed correctly in different conditions, such as variation in machine parameters and noisy environment. Two adaptation mechanisms are proposed to improve LIM drive system performance, particularly at very low speed. The first adaptation mechanism is based on fuzzy theory, and the second is obtained from an LIM mechanical model. Compared with a conventional PI controller, the proposed adaptation mechanisms have low sensitivity to both variations of machine parameters and noise. The optimum parameters of adaptation mechanisms are tuned using an offline method through chaotic optimization algorithm (COA) because no design criterion is given to provide these values. The efficiency of MRAS speed estimator is validated by both numerical simulation and real-time hardware-in-the-loop (HIL) implementations. Results indicate that the proposed adaptation mechanisms improve performance of MRAS speed estimator.