• Journal of Advanced Research in Ocean Engineering
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• 제2권4호
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• pp.202-208
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• 2016

In this paper, we propose novel seabed sediment classification algorithm using feature obtained by continuous wavelet transform (CWT). Contrast to previous researches using direct reflection coefficient of seabed which is function of frequency and is highly influenced by sediment types, we develop an algorithm using both direct reflection signal and backscattering signal. In order to obtain feature vector, we employ CWT of the signal and obtain histograms extracted from local binary patterns of the scalogram. The proposed algorithm also adopts principal component analysis (PCA) to reduce dimension of the feature vector so that it requires low computational cost to classify seabed sediment. For training and classification, we adopts K-means clustering algorithm which can be done with low computational cost and does not require prior information of the sediment. To verify the proposed algorithm, we obtain field data measured at near Jeju island and show that the proposed classification algorithm has reliable discrimination performance by comparing the classification results with actual physical properties of the sediments.

• 농업과학연구
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• 제49권4호
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• pp.837-845
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• 2022

In this study, tomato maturity was estimated based on deep learning for a harvesting robot. Tomato images were obtained using a RGB camera installed on a monitoring robot, which was developed previously, and the samples were cropped to 128 × 128 size images to generate a dataset for training the classification model. The classification model was constructed based on convolutional neural networks, and the mean-variance loss was used to learn implicitly the distribution of the data features by class. In the test stage, the tomato maturity was estimated as a continuous index, which has a range of 0 to 1, by calculating the expected class value. The results show that the F1-score of the classification was approximately 0.94, and the performance was similar to that of a deep learning-based classification task in the agriculture field. In addition, it was possible to estimate the distribution in each maturity stage. From the results, it was found that our approach can not only classify the discrete maturation stages of the tomatoes but also can estimate the continuous maturity.

• 한국콘텐츠학회논문지
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• 제8권10호
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• pp.309-316
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• 2008

여행업 종업원 교육훈련이 종업원 직무만족에 어떠한 영향을 미치고, 효율적인 교육훈련 개선은 물론 인적자원 관리방안 모색과 교육훈련이 직무에 미치는 영향력을 평가하는데 있다. 또한 종업원 잠재능력의 개발 중요성을 인식함과 동시에 직무만족에 도움이 될 수 있는 시사점을 제시하는데 있다. 여행업 종업원 교육훈련에 관한 결과를 보면 여행업 종업원 교육훈련은 교육훈련을 통해 습득되어지는 교육훈련내용과 여행업 종업원들의 교육훈련동기와 성취욕구, 능력이 항상 갖추어지고, 여행업체에서 상사나 동료의 지원 또는 환경 분위기가 조성이 될 때 종업원의 직무만족을 이끌어 낼 수 있는 것으로 나타났다. 앞으로 여행업 종업원 교육훈련을 위한 다양한 교육훈련프로그램이 개발되어야 하고, 여행업체는 물론 관련 정부기관에서는 종업원 인재양성을 위한 교육훈련에 장기적인 투자와 지원이 필요하다.

• 한국전문물리치료학회지
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• 제10권3호
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• pp.71-79
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• 2003

Manual tracking is an experimental paradigm that can be used to study information processing in continuous movements involving accurate, ongoing control of motor performance. The purpose of this study was to identify the effects of knee tracking training, using the paretic side, on gait in stroke patients. Nine patients with hemiplegia participated in the study. The timed 10 m gait speed test and tracking test were administrated. The tracking test was composed with ranges of $-20^{\circ}$ to $20^{\circ}$ and $0^{\circ}$ to $60^{\circ}$. The tracking training consisted of five times every week for 4 weeks. The data were analyzed by non-parametric paired sign test of Wilcoxon. The flexion/extension error of the tracking test was significantly reduced on the paretic side, while the nonparetic side was not statistically significant. The transfer of the skill to the functional activity was shown in the significant improvement at timed 10 m gait speed test. This study shows that individuals with chronic who have impaired knee movement can be trained to improve their knee control through intensive practice at a knee movement tracking task and that the skill learned from such training is transfered to a more functional gait speed.

• 대한방사선기술학회지:방사선기술과학
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• 제33권3호
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• pp.193-201
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• 2010

본 연구는 환자 중심의 의료서비스를 강화하고 있는 현 병원 이미지에 부합하는 개방형 임상실습 프로그램을 개발하여 방사선(학)과 졸업생의 임상 적응력과 전문성을 높이는데 목적을 두고 있다. 개방형 임상실습 프로그램은 학습모형 개발과정과 유사하여 ADDIE학습모형을 근간으로 각 단계별 요소를 구성하여 개발하였다. 문헌고찰과 임상의 요구사항을 수렴하여 일부 학생을 대상으로 1차 시안을 통해 예비수업을 시행하였으며, 관련 전문가의 자문과 수정을 거쳐 프로그램을 개발하였다. 개발된 프로그램은 전문가 그룹을 통해 내용 타당도의 검증을 받고자 하였다. 분석, 설계, 개발, 실행, 평가의 다섯 단계가 순환적으로 구성되어 있는 프로그램은 임상의 변화와 요구사항에 적절한 학습과제에 대해 적용할 수 있는 단계별 과정으로 구현되었다. 프로그램의 유용성과 단계별 내용 타당도는 유의 수준에서 만족한 결과를 도출하였다. 개방형 임상실습 프로그램은 의료계의 요구사항과 효과적인 학습 프로그램 적용을 통해 임상에 있는 방사선사가 환자 중심의 의료서비스에 좀 더 적극적으로 임상에 적응하고 이를 통해 전문적인 전공기술을 활용하는데 도움을 주고자 제안되었다.

• 음성과학
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• 제5권1호
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• pp.7-21
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• 1999

This paper proposes an improved training procedure in speech recognition based on the continuous density of the Hidden Markov Model (CDHMM). Of the three parameters (initial state distribution probability, state transition probability, output probability density function (p.d.f.) of state) governing the CDHMM model, we focus on the third parameter and propose an efficient algorithm that determines the p.d.f. of each state. It is known that the resulting CDHMM model converges to a local maximum point of parameter estimation via the iterative Expectation Maximization procedure. Specifically, we propose two independent algorithms that can be embedded in the segmental K -means training procedure by replacing relevant key steps; the adaptation of the number of mixture Gaussian p.d.f. and the initialization using the CDHMM parameters previously estimated. The proposed adaptation algorithm searches for the optimal number of mixture Gaussian humps to ensure that the p.d.f. is consistently re-estimated, enabling the model to converge toward the global maximum point. By applying an appropriate threshold value, which measures the amount of collective changes of weighted variances, the optimized number of mixture Gaussian branch is determined. The initialization algorithm essentially exploits the CDHMM parameters previously estimated and uses them as the basis for the current initial segmentation subroutine. It captures the trend of previous training history whereas the uniform segmentation decimates it. The recognition performance of the proposed adaptation procedures along with the suggested initialization is verified to be always better than that of existing training procedure using fixed number of mixture Gaussian p.d.f.

• Korean Journal of Acupuncture
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• 제29권1호
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• pp.57-70
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• 2012

Objectives : The purpose of this study is to assess Traditional Korean Medicine (TKM) doctors' awareness and utilization of the case report, based on the opinion that careful observation on the case sometimes provides us with the important information as clinical trial especially in the traditional medicine research field. Methods : A questionnaire study was conducted among TKM doctors who participated in the annual continuous maintenance education (CME) held at 5 regions of the Republic of Korea. Results : Almost 60% of the respondents had read case reports published in medical journals and 67% had openly shared their clinical cases with their colleagues. Of the respondents, 18.6% had been educated on reporting cases, and only 16% had the experience of reporting cases on one's own. However, 32.6% of the respondents had the intention to report cases in the future. These results show significant differences between general physicians who holds a license but no hospital training experience and board certified TKM doctors who have training experience. Conclusions : A majority of TKM doctors have read case reports but holds little experience of having been properly trained. Through this research, it has been found that awareness of case reports is rising in hospital training. Thus, the objective of case report education for TKM doctors who have hospital training experience should be set on encouraging them to do more whereas for doctors without hospital training experience, the objective should be set on making them more exposed to case reports to heighten one's awareness.

• Journal of Veterinary Science
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• 제21권3호
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• pp.21.1-21.14
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• 2020

Background: Physical exercise is known to cause significant joint changes. Thus, monitoring joint behavior of athletic horses is essential in early disorders recognition, allowing the proper management. Objectives: The aims of this study were to determine the morphological patterns, physical examination characteristics and ultrasound findings of show jumping horses in training and to establish a score-based examination model for physical and ultrasound follow-ups of metacarpophalangeal joint changes in these animals. Methods: A total of 52 metacarpophalangeal joints from 26 horses who were initially in the taming stage were evaluated, and the horses' athletic progression was monitored. The horses were evaluated by a physical examination and by B-mode and Doppler-mode ultrasound examinations, starting at time zero (T0), which occurred concomitantly with the beginning of training, and every 3 months thereafter for a follow-up period of 18 months. Results: The standardized examination model revealed an increase in the maximum joint flexion angles and higher scores on the physical and ultrasound examinations after scoring was performed by predefined assessment tools, especially between 3 and 6 months of evaluation, which was immediately after the horses started more intense training. The lameness score and the ultrasound examination score were slightly higher at the end of the study. Conclusions: The observed results were probably caused by the implementation of a training regimen and joint adaptation to physical conditioning. The joints most likely undergo a pre-osteoarthritic period due to work overload, which can manifest in a consistent or adaptive manner, as observed during this study. Thus, continuous monitoring of young athlete horses by physical and ultrasound examinations that can be scored is essential.

• 디자인융복합연구
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• 제17권3호
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• pp.1-19
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• 2018

수부재활훈련도구는 저하된 수부 기능 회복 및 전체적인 수부 기능 향상을 필요로 하는 환자와 사용자들을 위해 병원 및 가정에서 치료와 함께 병행한다. 이에 따라 다양한 목적의 수부재활훈련도구의 개발 또한 함께 이루어 지고 있으며, 많은 도구가 보급되어 각 병원에서 규정한 프로세스로 재활훈련을 진행하고 있다. 그러나 현재 병원에서 활용하는 훈련도구들은 점진적인 시스템으로 구성되어 있지 않고 일정 시간동안 단순반복성 동작을 유도한다. 따라서 재활훈련을 하는 환자들이 무료함을 느끼며 재활에 대한 동기부여를 갖지 못하므로 지속적이고 효과적인 훈련이 어렵다. 또한, 훈련에 활용되는 도구들은 고가인 경우가 대부분이며, 공간적 제한성으로 인해 환자의 자발적 재활훈련을 어렵게 한다. 이는 환자의 경제적 부담을 가중시킴과 동시에 올바른 신체적 향상을 가져오지 못하는 문제로 이어질 수 있다. 이러한 논점을 바탕으로 본 연구는 놀이요소 중 하나인 실뜨기를 접목해 과제를 통한 효과적 재활훈련이 이루어질 수 있도록 하고, 경제적이며 자유로운 재활이 이루어질 수 있도록 하고자 한다. 이를 위해 도구의 특성과 사용자 환경을 조사한 후 실뜨기 놀이와, 훈련도구와의 관련성 및 지속적인 재활이 가능한지에 대한 타당성을 확인하고 전문가 인터뷰를 통해 디자인 요소를 도출하였다. 이후 디자인 가이드라인 및 프로토타입을 제작해 사용성 테스트 및 디자인요소 평가를 진행하여 문제점을 보완하였다.

• International Journal of Computer Science & Network Security
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• 제21권6호
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• pp.304-311
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• 2021

The relevance of the research involves outlining the need for modern professionals to acquire new competencies. In the conditions of rapid civilizational progress, in order to meet the requirements of the labor market in the knowledge society, there is a readiness for continuous training as an indicator of professional success. The purpose of the research is to identify the impact of various forms of application of information technologies for lifelong learning in order to provide the continuous self-development of each person without cultural or age restrictions and on the basis of rapid digital progress. A high level (96%) of need of the adult population in continuing education with the use of digital technologies has been established. The most effective ways to implement the concept of "lifelong learning" have been identified (educational camps, lifelong learning, mass open online courses, Makerspace activities, portfolio use, use of emoji, casual game, scientific research with iVR game, implementation of digital games, work in scientific cafes). 2 basic objectives of continuing professional education for adults have been outlined (continuous improvement of qualifications and obtaining new qualifications). The features of ICT application in adult education have been investigated by using the following methods, namely: flexibility in terms of easy access to ideas, solving various problems, orientation approach, functional learning, group or individual learning, integration of leisure, personal and professional activities, gamification. The advantages of application of information technologies for continuous education (economic, time, and adaptive) have been revealed. The concept of continuous adult learning in the context of digitalization has been concluded. The research provides a description of the structural principles of the concept of additional education; a system of information requests of the applicant, as well as basic technologies for lifelong learning. The research indicates the lack of comprehensive research in the relevant field. The practical significance of the research results lies in the possibility of using the obtained results for a wider acquaintance of the adult population with the importance of the application of lifelong learning for professional activities and the introduction of methods for its implementation in the educational policy of the state.