• Title/Summary/Keyword: Adaptation Duration

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Performance Comparison and Duration Model Improvement of Speaker Adaptation Methods in HMM-based Korean Speech Synthesis (HMM 기반 한국어 음성합성에서의 화자적응 방식 성능비교 및 지속시간 모델 개선)

  • Lee, Hea-Min;Kim, Hyung-Soon
    • Phonetics and Speech Sciences
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    • v.4 no.3
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    • pp.111-117
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    • 2012
  • In this paper, we compare the performance of several speaker adaptation methods for a HMM-based Korean speech synthesis system with small amounts of adaptation data. According to objective and subjective evaluations, a hybrid method of constrained structural maximum a posteriori linear regression (CSMAPLR) and maximum a posteriori (MAP) adaptation shows better performance than other methods, when only five minutes of adaptation data are available for the target speaker. During the objective evaluation, we find that the duration models are insufficiently adapted to the target speaker as the spectral envelope and pitch models. To alleviate the problem, we propose the duration rectification method and the duration interpolation method. Both the objective and subjective evaluations reveal that the incorporation of the proposed two methods into the conventional speaker adaptation method is effective in improving the performance of the duration model adaptation.

Effect of inclusion level and adaptation duration on digestible energy and nutrient digestibility in palm kernel meal fed to growing-finishing pigs

  • Huang, Chengfei;Zhang, Shuai;Stein, Hans Henrik;Zhao, Jinbiao;Li, Defa;Lai, Changhua
    • Asian-Australasian Journal of Animal Sciences
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    • v.31 no.3
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    • pp.395-402
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    • 2018
  • Objective: An experiment was conducted to evaluate effects of inclusion level of palm kernel meal (PKM) and adaptation duration on the digestible energy (DE) and apparent total tract digestibility (ATTD) of chemical constituents in diets fed to growing-finishing pigs. Methods: Thirty crossbred barrows ($Duroc{\times}Landrace{\times}Large\;White$) with an average initial body weight of $85.0{\pm}2.1kg$ were fed 5 diets in a completely randomized design. The diets included a corn-soybean meal basal diet and 4 additional diets in which corn and soybean meal were partly replaced by 10%, 20%, 30%, or 40% PKM. After 7 d of adaptation to the experimental diets, feces were collected from d 8 to 12, d 15 to 19, d 22 to 26, and d 29 to 33, respectively. Results: The DE and ATTD of gross energy (GE), dry matter (DM), ash, organic matter (OM), neutral detergent fiber (NDF), acid detergent fiber (ADF), and crude protein (CP) in diets decreased linearly as the dietary PKM increased within each adaptation duration (p<0.01). Diet containing 19.5% PKM had less DE value and ATTD of all detected items compared with other diets when fed to pigs for 14 days (p<0.05). The ATTD of CP in PKM calculated by 19.5% and 39.0% linearly increased as adaptation duration prolonged from 7 to 28 days (p<0 .01). Conclusion: Inclusion level of PKM and adaptation duration had an interactive effect on DE and the ATTD of GE, DM, OM, and CP (p<0.01 or 0.05) but ash, NDF, and ADF in diet (p>0.05). Considering a stable determination, 21 days of adaptation to a diet containing 19.5% PKM is needed in pigs and a longer adaptation time is recommended as dietary PKM increases.

Effects of particle size and adaptation duration on the digestible and metabolizable energy contents and digestibility of various chemical constituents in wheat for finishing pigs determined by the direct or indirect method

  • Fan, Yuanfang;Guo, Panpan;Yang, Yuyuan;Xia, Tian;Liu, Ling;Ma, Yongxi
    • Asian-Australasian Journal of Animal Sciences
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    • v.30 no.4
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    • pp.554-561
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    • 2017
  • Objective: This experiment was conducted as a $3{\times}2{\times}2$ factorial design to examine the effects of particle size (mean particle size of 331, 640, or $862{\mu}m$), evaluation method (direct vs indirect method) and adaptation duration (7 or 26 days) on the energy content and the apparent total tract digestibility (ATTD) of various chemical components in wheat when fed to finishing pigs. Methods: Forty-two barrows ($Duroc{\times}Landrace{\times}Yorkshire$) with an initial body weight of $63.0{\pm}0.8kg$ were individually placed in metabolic cages and randomly allotted to 1 of 7 diets with 6 pigs fed each diet. For the indirect method, the pigs were fed either a corn-soybean meal based basal diet or diets in which 38.94% of the basal diet was substituted by wheat of the different particle sizes. In the direct method, the diets contained 97.34% wheat with the different particle sizes. For both the direct and indirect methods, the pigs were adapted to their diets for either 7 or 26 days. Results: A reduction in particle size linearly increased the digestible energy (DE) and metabolizable energy (ME) contents as well as the ATTD of gross energy, crude protein, organic matter, ether extract (EE) and acid detergent fiber (ADF) (p<0.05), and had a trend to increase the ATTD of dry matter of wheat (p = 0.084). The DE, ME contents, and ATTD of gross energy, crude protein, dry matter and organic matter were higher (p<0.05) when determined by the direct method, but the ATTD of ADF, EE, and neutral detergent fiber were higher when determined by the indirect method (p<0.05). Prolongation of the adaption duration decreased the ATTD of neutral detergent fiber (p<0.05) and had a trend to increase the ATTD of EE (p = 0.061). There were no interactions between particle size and the duration of the adaptation duration. The ATTD of EE in wheat was influenced by a trend of interaction between method and adaptation duration (p = 0.074). The ATTD of ADF and EE in wheat was influenced by an interaction between evaluation method and wheat particle size such that there were linear equations (p<0.01) about ATTD of ADF and EE when determined by the direct method but quadratic equations (p = 0.073 and p = 0.088, respectively) about ATTD of ADF and EE when determined by the indirect method. Conclusion: Decreasing particle size can improve the DE and ME contents of wheat; both of the direct and indirect methods of evaluation are suitable for evaluating the DE and ME contents of wheat with different particle sizes; and an adaptation duration of 7 d is sufficient to evaluate DE and ME contents of wheat in finishing pigs.

Effects of Coping on Physical and Psychosocial Adaptation by Illness Duration in Patients with Rheumatoid Arthritis (류마티스 관절염 환자의 질병 기간에 따른 대처 유형과 적응과의 관계)

  • Kim, In-Ja;Suh, Moon-Ja
    • Journal of muscle and joint health
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    • v.5 no.1
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    • pp.26-38
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    • 1998
  • The effects of coping on physical and psychosocial adaptation in the 297 patients with rheumatoid arthritis were investigated. The coping methods were divided into compliance of medical regimens, self-control activities, and cognitive control. The effects of these coping methods was analyzed with stepwise regression. The physical adaptation is found to be significantly affected by cognitive control, self-control activities, and compliance of medical regimens in order Compliance of the medical regimens affects negatively the physical adaptation. And psychosocial adaptation is significantly affected by the cognitive control. The analysis of these results by illness duration showed the distinct differences. That is in the patients who experienced the disease less than 48 months, the physical and the psychosocial adaptation were significantly affected only by the cognitive control. But in the patients who experienced the disease more than 96 months, the physical and the psychosocial adaptation were significantly affected by self-control activities. Based upon these results, it is recommended that the nurses who care the newly diagnosed patients emphasize on the positive side of the state. And the patients who are diagnosed long ago need the nursing programs which teach and promote self-control activities. Also it is suggested that the results of compliance must be considered rather than as the result variable.

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A Study on the Consciousness for Korean-Chinese Adaptation in Korea

  • Kim, Jong-Jin
    • The Journal of Industrial Distribution & Business
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    • v.8 no.4
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    • pp.7-13
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    • 2017
  • Purpose - This study aims to determine whether history education for Korean-Chinese living in Korea affects their understanding for Korean society. It also aims to determine Korean-Chinese compatriots to recognize the necessity for History education. Research design, data, and methodology - In this study, two parts were examined, which were the analysis on the influence of history education and the Korean-Chinese compatriots' adaptation to Korean society. In the case of data survey, Korean-Chinese compatriots were selected who are living in Korea. The survey was conducted using the samples of 200 questionnaires in total. Results - The results of the analysis shows that their residence adaptation in Korea has a positive impact on future nationality. Moreover, the residence adaptation in Korea has positive implications for their future nationality and their longer residence duration in Korea has an effect on their hope for living in Korea. Conclusions - The study showed the historical consciousness and related demographic characteristics of Korean compatriots living in Korea. It also showed that the longer their education duration for Korean history in China, the more difficult their adaptation would be. Therefore, the long term effects of adaptation depended on the emphasis of Korean history.

Short utterance speaker verification using PLDA model adaptation and data augmentation (PLDA 모델 적응과 데이터 증강을 이용한 짧은 발화 화자검증)

  • Yoon, Sung-Wook;Kwon, Oh-Wook
    • Phonetics and Speech Sciences
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    • v.9 no.2
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    • pp.85-94
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    • 2017
  • Conventional speaker verification systems using time delay neural network, identity vector and probabilistic linear discriminant analysis (TDNN-Ivector-PLDA) are known to be very effective for verifying long-duration speech utterances. However, when test utterances are of short duration, duration mismatch between enrollment and test utterances significantly degrades the performance of TDNN-Ivector-PLDA systems. To compensate for the I-vector mismatch between long and short utterances, this paper proposes to use probabilistic linear discriminant analysis (PLDA) model adaptation with augmented data. A PLDA model is trained on vast amount of speech data, most of which have long duration. Then, the PLDA model is adapted with the I-vectors obtained from short-utterance data which are augmented by using vocal tract length perturbation (VTLP). In computer experiments using the NIST SRE 2008 database, the proposed method is shown to achieve significantly better performance than the conventional TDNN-Ivector-PLDA systems when there exists duration mismatch between enrollment and test utterances.

Adaptation Model for Family Caregiver of Cancer Patient (암환자 가족 중 주간호제공자의 적응모형구축)

  • Shin, Gye-Young
    • Asian Oncology Nursing
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    • v.2 no.1
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    • pp.5-16
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    • 2002
  • Purpose: This study was to develop a stress-adaptation model for family caregivers of cancer patients that could provide the basis of planning nursing intervention. Method: A hypothetical model was developed using the family adaptation model proposed by Haley et al. (1987). In the literature, the stressor was identified as patient's characteristics, caregiver's characteristics, duration of illness, and family life events. It affected stress appraisal, family resources, family coping and finally caregiver's adaptation. In this model, 18 paths were constructed. Data were collected from 241 caregivers, whose family members were in treatment between June and August 2000, at 3 university hospitals and were analyzed by SPSS and LISREL programs. Results: 1) The overall fitness indices of the hypothetical model were x 2=267.78 (P= .0), GFI= .92, AGFI= .87, NFI= .93, NNFI= .93, PNFI= .64, PGFI= .55, and RMR= .43. Ten of the eighteen paths proved to be significant. 2) To improve the model fitness, the hypothetical model was modified considering modification indices and the paths proved not significant. Final model excluded 3 paths demonstrated to be improved by x2=161.96 (P= .00), GFI= .95, AGFI= .91, NFI= .96, NNFI= .96, and RMR= .23. Twelve of fifteen paths proved to be significant. 3) Stress appraisal was influenced by disease related characteristics and duration of illness and was explained 22% of the variance. Family resources were influenced by stress appraisal and was explained 57% of variance. Family coping was influenced by disease related characteristics, caregiver's characteristics, duration of illness, family life event, and stress appraisal and was explained 57% of variance. Family caregiver adaptation was influenced by disease related characteristics, caregiver's characteristics, stress appraisal, and family coping and was explained 31% of variance. Twelve of fifteen paths were significant. Conclusion: Based on this study, to help family caregivers to adapt, individual intervention is necessary with consideration of disease related and caregiver's characteristics and duration of illness. The intervention should include efforts to raise the family resources and to identify positively the stress they encounter, and there is a need to establish an adaptation model that considers emotional aspects of family caregivers. Since there is a difference in emotional status depending on the disease stage, a study needs to be done to analyze the differences among the disease stages (diagnosis, treatment, recurrence, and terminal stages).

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Clinical Trials For Gait Rehabilitation of Stroke Patients by the Acupuncture Treatment (침(鍼) 자극(刺戟)이 중풍환자(中風患者)의 보행개선에 대한 임상적 관찰)

  • Shin, Seung-Uoo;Hwang, Jee-Sik;Shin, Hyun-Dai;Lee, Sang-Hak
    • The Journal of Korea CHUNA Manual Medicine
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    • v.3 no.1
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    • pp.55-64
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    • 2002
  • Objectives : Acupuncture therapy is known as a effective method to CVA with paralysis. To make clear about effectiveness of acupuncture affecting to active and static postural adaptation for the patient with hemiparesis, we studied whether acupuncture changed ability of maintenance with one leg standing posture, and character of gait such as gait velocity, cadence, stride length, step length and base of support. Methods : This clinical study has been carried out with 10 cases of CVA patient with hemiparesis. We treated patients with acupuncture for 4 weeks, estimated each paralytic leg and well leg before 1st treatment and after last treatment, and compared the change of one leg with the other. To estimate the change of ability of static postural adaptation, we checked the time of duration with one leg standing posture. And about active postural adaptation, we used temporal distance gait analysis with Ink-Foot-Print method. Results and Conclusions : In static postural adaptation, paralytic leg significantly improved the duration with one leg posture. And In active postural adaptation with gait analysis, paralytic leg showed significant improvement in stride length and step length. Base of support and cadence were also significantly improved.

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The Self-efficacy of North Korean defectors The Influence of the Adaptation to Social and Cultural Adjustment in South Korea: A Study on the Moderating Effect of Economic Adaptation (북한이탈주민의 자기효능감이 남한사회문화적응에 미치는 영향: 경제적 적응의 조절효과를 중심으로)

  • Kim, Myoung-Sun
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.20 no.3
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    • pp.125-138
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    • 2019
  • In this study, we examined how the self-efficacies of North Korean defectors affect their adaptation to South Korean social culture. To this end, 209 North Korean defectors living in Seoul, Incheon, Wonju, or Ansan were surveyed. The results obtained showed shorter residence in South Korea and age were associated with greater fear of South Korean society and awareness of language and cultural differences. On the other hand, age and duration of residence were not found to affect relations between social adaptation and perceptions of low social status, discrimination, or prejudice by defectors, which suggests defectors often live in South Korea for a considerable time without overcoming perceptions of discrimination or prejudice. The factor that most influenced adaptation to social culture was self-efficacy, which affected not only socio-cultural adaptation but also self-sufficiency and the ability to promote oneself, which is essential for economic adaptation in South Korean society.

A Study on the Speaker Adaptation in CDHMM (CDHMM의 화자적응에 관한 연구)

  • Kim, Gwang-Tae
    • Journal of the Institute of Electronics Engineers of Korea SP
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    • v.39 no.2
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    • pp.116-127
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    • 2002
  • A new approach to improve the speaker adaptation algorithm by means of the variable number of observation density functions for CDHMM speech recognizer has been proposed. The proposed method uses the observation density function with more than one mixture in each state to represent speech characteristics in detail. The number of mixtures in each state is determined by the number of frames and the determinant of the variance, respectively. The each MAP Parameter is extracted in every mixture determined by these two methods. In addition, the state segmentation method requiring speaker adaptation can segment the adapting speech more Precisely by using speaker-independent model trained from sufficient database as a priori knowledge. And the state duration distribution is used lot adapting the speech duration information owing to speaker's utterance habit and speed. The recognition rate of the proposed methods are significantly higher than that of the conventional method using one mixture in each state.