• Title/Summary/Keyword: Adaptation

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Fast Speaker Adaptation and Environment Compensation Based on Eigenspace-based MLLR (Eigenspace-based MLLR에 기반한 고속 화자적응 및 환경보상)

  • Song Hwa-Jeon;Kim Hyung-Soon
    • MALSORI
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    • no.58
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    • pp.35-44
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    • 2006
  • Maximum likelihood linear regression (MLLR) adaptation experiences severe performance degradation with very tiny amount of adaptation data. Eigenspace- based MLLR, as an alternative to MLLR for fast speaker adaptation, also has a weak point that it cannot deal with the mismatch between training and testing environments. In this paper, we propose a simultaneous fast speaker and environment adaptation based on eigenspace-based MLLR. We also extend the sub-stream based eigenspace-based MLLR to generalize the eigenspace-based MLLR with bias compensation. A vocabulary-independent word recognition experiment shows the proposed algorithm is superior to eigenspace-based MLLR regardless of the amount of adaptation data in diverse noisy environments. Especially, proposed sub-stream eigenspace-based MLLR with bias compensation yields 67% relative improvement with 10 adaptation words in 10 dB SNR environment, in comparison with the conventional eigenspace-based MLLR.

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Fast speaker adaptation using extended diagonal linear transformation for deep neural networks

  • Kim, Donghyun;Kim, Sanghun
    • ETRI Journal
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    • v.41 no.1
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    • pp.109-116
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    • 2019
  • This paper explores new techniques that are based on a hidden-layer linear transformation for fast speaker adaptation used in deep neural networks (DNNs). Conventional methods using affine transformations are ineffective because they require a relatively large number of parameters to perform. Meanwhile, methods that employ singular-value decomposition (SVD) are utilized because they are effective at reducing adaptive parameters. However, a matrix decomposition is computationally expensive when using online services. We propose the use of an extended diagonal linear transformation method to minimize adaptation parameters without SVD to increase the performance level for tasks that require smaller degrees of adaptation. In Korean large vocabulary continuous speech recognition (LVCSR) tasks, the proposed method shows significant improvements with error-reduction rates of 8.4% and 17.1% in five and 50 conversational sentence adaptations, respectively. Compared with the adaptation methods using SVD, there is an increased recognition performance with fewer parameters.

College life adaptation among dental hygiene students (학제에 따른 치위생(학)과 학생의 대학생활적응 비교)

  • Ryu, Da-Young;Song, Kwui-Sook
    • Journal of Korean Dental Hygiene Science
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    • v.2 no.2
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    • pp.53-60
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    • 2019
  • Introduction: This study aimed to investigate the adaptation to college life of dental hygiene students. Methods: A total of 300 students in the 3-year course, and 200 students in the 4-year course at the Department of Dental Hygiene, were selected. A self-reported questionnaire was used between 27th June and 31st August 2017. From this, 439 questionnaires were collected and analyzed. Results: 1. The overall degree of adaptation to college life, according to varied general characteristics of the subject students, appeared to show that male students had a higher degree of adaptation than female students. It also appeared to be higher in students that had a higher level of academic accomplishment(<0.001). 2. The average score of the degree of adaptation to college life was 2.57 points(full score of 4.00 points). Social adaption had the highest score of 2.92 points, while academic adaptation had the lowest score of 2.37 points. Regarding the subordinate domains of adaptation to college life, the average score of attachment adaptation of students in the 3-year course of the Department of Dental Hygiene(2.69 points) appeared to be higher than that of students in the 4-year course(2.52 points). The difference between these scores was statistically significant(p=0.001). 3. The effects of varied academic systems upon the degree of adaptation to college life were also analyzed. Emotional and attachment adaptation to college, as well as the academic accomplishment of students in the 3-year course, was distributed over a range of 3.0~3.5. This was significantly different compared to students in the 4-year course(p<0.05). Conclusion: It is necessary to develop stepwise and continuous educational programs to enable better college life adaptation for students in the Department of Dental Hygiene.

The Mediating Effect of Depression in the Impact of Cultural Adaptation Stress on School Life Adaptation of Multicultural Adolescents: Searching for Converged Intervention Strategies (다문화가정 청소년의 문화적응 스트레스가 학교생활적응에 미치는 영향에서 우울의 매개효과: 융합적 대응방안 모색)

  • Ann, Hye-Woo;Um, Myung-Yong
    • Journal of the Korea Convergence Society
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    • v.11 no.6
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    • pp.297-310
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    • 2020
  • The current study examined whether multicultural students' depression level mediated between cultural adaptation stress and school life adaptation in South Korea. A total of 1,329 students in the sixth year (2016) of the National Youth Policy Institute (NYPI) 's multicultural youth panel data were analyzed using regression analysis. The main results of the study are as follows. First, cultural adaptation stress of adolescents in multicultural families had a direct influence on school life adaptation. Second, depression partly mediated between cultural adaptation stress and school life adaptation. These findings have major implications for policies and interventions in regard to cultural adaptation stress and school life adaptation of the youth in multicultrual families.

Performance Improvement of Fast Speaker Adaptation Based on Dimensional Eigenvoice and Adaptation Mode Selection (차원별 Eigenvoice와 화자적응 모드 선택에 기반한 고속화자적응 성능 향상)

  • 송화전;이윤근;김형순
    • The Journal of the Acoustical Society of Korea
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    • v.22 no.1
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    • pp.48-53
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    • 2003
  • Eigenvoice method is known to be adequate for fast speaker adaptation, but it hardly shows additional improvement with increased amount of adaptation data. In this paper, to deal with this problem, we propose a modified method estimating the weights of eigenvoices in each feature vector dimension. We also propose an adaptation mode selection scheme that one method with higher performance among several adaptation methods is selected according to the amount of adaptation data. We used POW DB to construct the speaker independent model and eigenvoices, and utterances(ranging from 1 to 50) from PBW 452 DB and the remaining 400 utterances were used for adaptation and evaluation, respectively. With the increased amount of adaptation data, proposed dimensional eigenvoice method showed higher performance than both conventional eigenvoice method and MLLR. Up to 26% of word error rate was reduced by the adaptation mode selection between eigenvoice and dimensional eigenvoice methods in comparison with conventional eigenvoice method.

Stressor, Coping Style, Communication with Mother & School Adaptation in 6th Grade Elementary School Children (초등학생의 스트레스요인, 대처방식, 어머니와의 의사소통 및 학교적응)

  • Hong Youn Lan
    • Child Health Nursing Research
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    • v.6 no.3
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    • pp.362-371
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    • 2000
  • The purpose of this study was to examine the stressors, coping styles, communication with mother, school adaptation and predictors for school adaptation. The subjects of this study consisted of 354 children. They were 6th grade of elementary school in Taegu city. The periods of study was from march 10, to march 18, 2000. Data were analyzed by SAS computer programme. The results of this study were as follows: 1. The mean score for stressor was 39.91 in children(range 24-72). The higher stressor among three subgroups of stressor was mass media stressor. The degree of stressor revealed to be influenced significantly economic status. 2. The most frequently used coping style was problem-oriented coping style(M=18.94) in children. The degree of emotion-oriented coping style revealed to be influenced significantly family's atmosphere 3. The mean score for communication with mother was 72,44 in children(range 20- 100). The degree of communication with mother revealed to be influenced significantly sex, economic status, family' atmosphere. 4. The mean score for school adaptation was 62.48 in children(range 25-100). The higher school adaptation among five subgroup was rule dimension. The degree of school adaptation revealed to be influenced significantly sex, birth, mother's job, economic status, family's atmosphere. 5. School adaptation were positively correlated with communication with mother, problem- oriented coping style(r=0.40 p<0.001) (r=0.30 p<0.001). 6. School adaptation were negatively correlated with emotion-oriented coping style, stressor (r=-0.16 p<0.01)(r=-0.13 p<0.01). 7. Forward multiple regression analysis revealed that the most powerful predictor was the variable communication with mother accounted for 15.25% in school adaptation. All variables accounted for 25.55% in school adaptation. From the above results, it can be concluded that teaching mother about importance of communication, encouraging to use problem-oriented coping style is necessary to improve school adaptation in 6th grade elementary school children

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Convergent Relationship between of Positive Psychological Capital on College Life Adaptation in Freshmen of Dental Hygiene Department (치위생(학)과 신입생의 긍정심리자본과 대학생활 적응과의 관련성에 대한 융합적 연구)

  • Cho, Mi-Sook;Park, Jung-hyun;Jang, Kyeung-Ae
    • Journal of Convergence for Information Technology
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    • v.9 no.10
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    • pp.195-202
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    • 2019
  • This study aimed to investigate the effects of positive psychological capital on college life adaptation in freshmen of dental hygiene department of universities in Daegu, Busan and Ulsan. The major variables including hope, resilience, optimism, self-efficacy, academic adaptation, social adaptation, personal emotional adaptation, and university environment adaptation all showed significant positive correlations. Among the influential factors of positive psychological capital on college life adaptation, academic adaptation and social adaptation showed significant differences in optimism(p<.001) and self-efficacy(p<.001), while personal emotional adaptation and university environment adaptation showed significant differences in optimism(p<.001). Therefore, it is necessary to develop intervention programs that can improve positive psychological capital and apply them systematically to the educational field.

Mediating Effect of Grit in the Relationship between Resilience and University Life Adaptation of College Students Majoring in Beauty after COVID-19 (코로나19(COVID-19) 이후 뷰티학과 전문대 학생들의 회복탄력성과 대학생활적응의 관계에서 그릿(Grit)의 매개 효과)

  • Min-Hee Kim;Na-Yeon Kim
    • Fashion & Textile Research Journal
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    • v.24 no.6
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    • pp.789-800
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    • 2022
  • This study investigates the effect of recovery elasticity of beauty college students on university life adaptation during COVID-19. Further, the mediating effect of grit in relation to recovery elasticity and university life adaptation is analyzed. Survey data of 223 students (female: 192; male: 31) were collected for multiple and intermediate regression analyses using SPSS 24.0. The results reveal a static correlation between the lower factors of resilience, glittery, and adaptation to college life and that the resilience of junior college students in the beauty department had a static effect on grit and their adaptation to college life. Passion, a subordinate factor of grit, is mediated by the effect of grit on the relationship between resilience and adaptation to university life. However, perseverance, another subordinate factor of grit, did not have any such mediating effect. These results confirm the importance of grit, particularly passion, for resilience and adaptation to college life. It was confirmed that resilience was due to college life adaptation of beauty department students, and it was confirmed that passion, a sub-factor of grit, also had a mediating effect. Therefore, it is judged that resilience induces physical and mental adaptation, interpersonal adaptation, and academic adaptation necessary for college life, and works in many ways to improve the quality of life of beauty department junior college students. Instructors should consider developing educational programs for improving recovery elasticity and grit to help students better adapt to university life.

The Stress and Adaptation of the Spouses of Patients with Gynecological Cancer (여성생식기암 환자 배우자의 스트레스와 적응)

  • Kim, Sung-Hyo;Lee, Eun-Sook
    • Asian Oncology Nursing
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    • v.6 no.2
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    • pp.162-171
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    • 2006
  • Purpose: This study was undertaken to obtain the basic data on the spouses‘ stress and adaptation caring their wives affected by gynecological cancer. In addition, moderating variables for adaptation, family resource and situational definition, were also investigated. Method: This study was descriptive survey research work by questionnaire on the 71 spouses hospitalized in an university hospital located on Gwangju from Sep. 2001 to Oct. 2002. Results: The mean score of stress was 2.27, and the mean score of adaptation was 3.12. The correlation between stress and adaptation was significant (r = -.692, p = .000). The adaptation score of high stress group with high family resource was higher (p = .041) than the group with low family resource. The adaptation score of high stress group with high situational definition was higher (p = .033) than the group with low situational definition. Conclusion: This study showed that the spouses experienced a similar level of stress compared with the level of families with other type of cancer. This study also showed that the stress and adaptation levels were different depending upon the family resource and situational definition. This aspect should be considered for the development of nursing intervention program for the spouse of patients with gynecological cancer.

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A Prediction Model on Adaptation to University Life among Chinese International Students in Korea (중국 유학생의 한국 대학생활 적응 예측모형)

  • Lin, Qin Lan;Kim, Hee-Kyung
    • The Journal of Korean Academic Society of Nursing Education
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    • v.17 no.3
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    • pp.501-513
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    • 2011
  • Purpose: On the basis of the theoretical framework of a combination of Roy's adaptation theory and Lazarus & Folkman's theory of stress - appraise coping, the purpose of this study was to predict effect factors of adaptation to university life of Chinese international students in Korea. After this, a model of adaptation to university life of Chinese international students in Korea was constructed. Methods: A questionnaire was used to survey 369 Chinese international students from one university in Korea, which was analyzed by using PASW Statistics 18.0 and LISREL 8.7. Results: This theoretical model explained adaptation to university life of Chinese international students at 75.0% in Korea. Physical symptoms, loneliness, acculturation stress and self-efficacy directly affected the adaptation to university life. Korean language proficiency indirectly affected adaptation to university life through self-efficacy. Conclusion: Results of this study provided theoretical basis for the future health care of university- centered health centers. For improving adaptation to university life of Chinese international students in Korea, education and nursing measures for reducing physical symptoms, loneliness and acculturation stress, and improving Korean language proficiency and self-efficacy are proposed for further research and development.