• Title/Summary/Keyword: further training

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Video Object Segmentation with Weakly Temporal Information

  • Zhang, Yikun;Yao, Rui;Jiang, Qingnan;Zhang, Changbin;Wang, Shi
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • v.13 no.3
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    • pp.1434-1449
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    • 2019
  • Video object segmentation is a significant task in computer vision, but its performance is not very satisfactory. A method of video object segmentation using weakly temporal information is presented in this paper. Motivated by the phenomenon in reality that the motion of the object is a continuous and smooth process and the appearance of the object does not change much between adjacent frames in the video sequences, we use a feed-forward architecture with motion estimation to predict the mask of the current frame. We extend an additional mask channel for the previous frame segmentation result. The mask of the previous frame is treated as the input of the expanded channel after processing, and then we extract the temporal feature of the object and fuse it with other feature maps to generate the final mask. In addition, we introduce multi-mask guidance to improve the stability of the model. Moreover, we enhance segmentation performance by further training with the masks already obtained. Experiments show that our method achieves competitive results on DAVIS-2016 on single object segmentation compared to some state-of-the-art algorithms.

A Comparative Study on Awareness of Review Work of Medical Institutions and Review Institutions - Focusing on Insurance Claim Officers at General Hospitals and Review Officers at Health Insurance Review Agency - (의료기관과 심사기관의 심사업무인식도 비교연구 - 종합병원 청구직원과 건강보험심사평가원심사직원을 중심으로 -)

  • Lee, Soo-Yun;Ha, Ho-Wook;Sohn, Tae-Yong
    • Korea Journal of Hospital Management
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    • v.9 no.3
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    • pp.71-97
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    • 2004
  • This study conducted a comparative analysis of awareness level of review standards, continuing education, and awareness about the need for speciality and educational courses in order to improve quality of Korean health insurance review work and to present directions for policies of personnel development and continuing education to smoothly perform hospital's insurance claim work and Agency's review work. The analysis unit of the study is individuals, and survey was conducted among hospital's claim officers and Agency' review officers by distributing questionnaires. The major results of the study are as follows: First, it is found that hospital's claim officers and Agency's review officers have conflicting awareness about review standards; more Agency's review officers think that current review standards are universal and reasonable, while more hospital's claim officers believe that they need to be revised. Especially, hospital's claim officers replied that it is possible that review results can differ according to government's policies. Second, there is no significant difference between the two groups in the opinion that there are individual differences in awareness level of review standard. In particular, both groups share the opinion that review results can differ according to officer's interpretation of review standards. Third, Both review officer groups feel the need for further training and continuing education. Fourth, there is no difference between the two groups in the opinion that both groups members should be educated in review related educational institutions. However, while 81.5% of Agency's review officers the education should be offered at the Agency, only 45.2% of hospital's claim officers agreed to it. Fifth, both review personnel do not show any difference in awareness of needed experience to successfully perform review work; both groups replied that three to four years experience is necessary to smoothly perform claim work and review work. This study was tried in order to search for directions to improve Korean insurance review work in quality rather than to explore characteristics themselves of individual factors. In this sense, this study presupposed an intention that the educational subjects for further training and continuing education for the two groups should be the same in order to narrow the awareness gap between hospital's claim officers and Agency's review officers. Thus, this study suggests that it is desirable to offer beginner courses at junior colleges or in undergraduate courses and advanced courses in professional graduate school for six to twelve months. In that a comparison of awareness level of hospital's claim officers and Agency's review officers who are actually in practice should precede appropriate presentation of directions for the qualitative improvement of insurance review work in Korea, the significance of this study lies in comparatively analyzing the awareness level of hospital's claim officers and Agency's review officers and in presenting the establishment of future further training and continuing education.

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Voting and Ensemble Schemes Based on CNN Models for Photo-Based Gender Prediction

  • Jhang, Kyoungson
    • Journal of Information Processing Systems
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    • v.16 no.4
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    • pp.809-819
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    • 2020
  • Gender prediction accuracy increases as convolutional neural network (CNN) architecture evolves. This paper compares voting and ensemble schemes to utilize the already trained five CNN models to further improve gender prediction accuracy. The majority voting usually requires odd-numbered models while the proposed softmax-based voting can utilize any number of models to improve accuracy. The ensemble of CNN models combined with one more fully-connected layer requires further tuning or training of the models combined. With experiments, it is observed that the voting or ensemble of CNN models leads to further improvement of gender prediction accuracy and that especially softmax-based voters always show better gender prediction accuracy than majority voters. Also, compared with softmax-based voters, ensemble models show a slightly better or similar accuracy with added training of the combined CNN models. Softmax-based voting can be a fast and efficient way to get better accuracy without further training since the selection of the top accuracy models among available CNN pre-trained models usually leads to similar accuracy to that of the corresponding ensemble models.

Impacts of Training and Education for Information Technology(IT):Empirical Study in the Service Industry

  • Ha, Tai-Hyun
    • Korean Management Science Review
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    • v.14 no.2
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    • pp.161-184
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    • 1997
  • This research examines the importance of IT training/education, present situation and possible suggestion for the successful training/education. The research method adopts a comparative analytical approach based on questionnaire survey responses from three work groups - managers, employees, and union representatives - drawn from five sample Korean banks. The evidence indicates that all three groups agree that IT improves banking efficiency and reduces job repetitiveness, but their job satisfaction level with IT-based work is surprisingly very low. The main reasons are mainly lack of training/education and poor user manuals. Also the research shows that most respondents would like to get further training/education to more adequately fit them for their jobs. Those from banks which invested in continuing training/education revealed more positive work attitudes and higher job satisfaction.

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Impacts of Training and Education for Information Technology(IT) : Empirical Study in the Service Industry

  • 하태현
    • Journal of the Korean Operations Research and Management Science Society
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    • v.14 no.2
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    • pp.161-161
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    • 1989
  • This research examines the importance of IT training/education, present situation and possible suggestion for the successful training/education. The research method adopts a comparative analytical approach based on questionnaire survey responses from three work groups - managers, employees, and union representatives - drawn from five sample Korean banks. The evidence indicates that all three groups agree that IT improves banking efficiency and reduces job repetitiveness, but their job satisfaction level with IT-based work is surprisingly very low. The main reasons are mainly lack of training/education and poor user manuals. Also the research shows that most respondents would like to get further training/education to more adequately fit them for their jobs. Those from banks which invested in continuing training/education revealed more positive work attitudes and higher job satisfaction.

Teachers' Perceptions of Competencies Needed for Working in Inclusive Early Childhood Programs (유아통합교육프로그램의 일반교사와 특수교사가 갖추어야 할 자질에 대한 교사들의 인식 - 미국 교사를 중심으로)

  • Kim, Keyng Suk;Barbara, Thompson
    • Korean Journal of Child Studies
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    • v.21 no.1
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    • pp.283-294
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    • 2000
  • The purpose of this study was to determine early childhood education(ECE) and early childhood special education(ECSE) teachers' perceptions of (a)important teacher competencies needed for working in inclusive early childhood programs and (b)current levels of these competencies. Sixty-two ECE teachers and 77 ECSE teachers responded to the survey developed for this study. There were no differences between the ECE teachers and ECSE teachers in the ratings of importance of the competency domains. However, the ECSE teachers had significantly higher perceptions than the ECE teachers of their self-proficiency on competencies related to child development, curriculum and instruction, assessment procedures, working with other adults, and professionalism. Both the ECE and ECSE teachers perceived the greatest need for further training in competencies related to assessment procedures and working with families and other adults.

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Job Performance Frequency and the Training Needs of Dieticians in Elderly Healthcare Facilities (노인의료복지시설 영양사의 직무 수행 빈도와 교육필요도)

  • Hong, Shin-Yang;Seo, Sun-Hee
    • Journal of the Korean Dietetic Association
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    • v.16 no.2
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    • pp.160-177
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    • 2010
  • The purpose of this study was to identify job frequency and the training needs of dieticians in elderly health care facilities. This study consisted of dieticians working in elderly health care facilities with a capacity of over 50 elderly. Survey questionnaires were distributed to 190 dieticians through the mail and 106 dieticians (55.8%) participated in this study. The results of the survey showed that dieticians in elderly health care facilities frequently performed the following job: work management, safety and sanitation management, purchase management, human resource management, finance management, nutrition management, and marketing management. The job frequency in safety and sanitation management (p<0.05) and nutrition management (p<0.01) areas were significantly different by the number of dieticians. Safety and sanitation management and menu management were considered job areas that needed further training and education. Dieticians in elderly health care facilities responded that the following jobs should require not only training but are also frequently performed: safety and sanitation management, menu management, work management, and human resource management. Thus, based on the results of this study, continuous training programs in these fields should be offered to satisfy the needs of dieticians.

A Kinematic Analysis of Snatch Technique in Weight-Lifting (역도 인상동작의 운동학적 분석)

  • Moon, Young-Jin;Song, Joo-Ho;Kim, Ji-Seob
    • Korean Journal of Sport Biomechanics
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    • v.14 no.2
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    • pp.41-55
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    • 2004
  • This study analyzed snatch technique in weight-lifting performed by female gold, silver, and copper medalists at the 75kg level in the 2002 Pusan Asian Games and obtained the following conclusions. 1. KSH used more extensor in the waist than those in ankles, knees, or hip joints during the second pull, So further training is required to manifest both each of joints and waist extensor effectively and thus for the line from shoulders through barbell to hip joints to form a smooth vertical pattern. 2. Contrary to those in other countries, Korean athlete KSH tended to be swift in starting but slow in the second pull section, showing less effectiveness in movement during the second pull; therefore, they must try to exert a swift movement in lockout. 3. KSH showed slowdown in the speed, which was a factor interfering with performance during second pull, despite the great maximum speed of moving barbell. It is important to use barbell sufficiently not to reduce the speed of vertical movement but rather to keep the speed increasing. 4. KSH, who kept doing inefficient movements such as failure to perform swift lockout after lifting the heel at the maximum angle of lower limbs, needs to reduce this meaningless extension of ankles, knees, or hip joints to exert energy effectively.

Oral Cancer: Knowledge, Practices and Opinions of Dentists in Yemen

  • Alaizari, Nader Ahmed;Al-Maweri, Sadeq Ali
    • Asian Pacific Journal of Cancer Prevention
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    • v.15 no.14
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    • pp.5627-5631
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    • 2014
  • Background: Oral cancer presents with high mortality rates, and the likelihood of survival is remarkably superior when detected early. Dental professionals have an important role and responsibility in prevention and early detection of oral cancer. Purpose: The aim of this study was to assess the knowledge, practices and opinions regarding oral cancer among dentists in Yemen. Materials and Methods: A cross-sectional survey was conducted using a self-administered questionnaire involving private and public dental practitioners, working in different governorates in Yemen. Results: Of the 800 dentists surveyed, a total of 221 questionnaires were completed and returned (response rate 27.6%). A vast majority of dentists (96.38%) identified tobacco as the major risk factor for oral cancer, and 82.8% knew that squamous cell carcinoma is the most common form. While 47.1% of the dentists agreed that they were adequately trained in oral cancer screening, the majority (86%) believed that they need further training in oral cancer screening. Conclusions: These results suggest that additional training and continuing educational programs on prevention and early detection of oral cancer for dentists are to be highly recommended.

A Study on Improvement of Dynamic Object Detection using Dense Grid Model and Anchor Model (고밀도 그리드 모델과 앵커모델을 이용한 동적 객체검지 향상에 관한 연구)

  • Yun, Borin;Lee, Sun Woo;Choi, Ho Kyung;Lee, Sangmin;Kwon, Jang Woo
    • The Journal of The Korea Institute of Intelligent Transport Systems
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    • v.17 no.3
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    • pp.98-110
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    • 2018
  • In this paper, we propose both Dense grid model and Anchor model to improve the recognition rate of dynamic objects. Two experiments are conducted to study the performance of two proposed CNNs models (Dense grid model and Anchor model), which are to detect dynamic objects. In the first experiment, YOLO-v2 network is adjusted, and then fine-tuned on KITTI datasets. The Dense grid model and Anchor model are then compared with YOLO-v2. Regarding to the evaluation, the two models outperform YOLO-v2 from 6.26% to 10.99% on car detection at different difficulty levels. In the second experiment, this paper conducted further training of the models on a new dataset. The two models outperform YOLO-v2 up to 22.40% on car detection at different difficulty levels.