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513 results on '"Chen, Chi-Chung"'

2. Efficient and Robust Parallel DNN Training through Model Parallelism on Multi-GPU Platform

Author

Chen, Chi-Chung, Yang, Chia-Lin, and Cheng, Hsiang-Yun

Subjects
Computer Science - Distributed, Parallel, and Cluster Computing, Computer Science - Machine Learning
Abstract

The training process of Deep Neural Network (DNN) is compute-intensive, often taking days to weeks to train a DNN model. Therefore, parallel execution of DNN training on GPUs is a widely adopted approach to speed up the process nowadays. Due to the implementation simplicity, data parallelism is currently the most commonly used parallelization method. Nonetheless, data parallelism suffers from excessive inter-GPU communication overhead due to frequent weight synchronization among GPUs. Another approach is pipelined model parallelism, which partitions a DNN model among GPUs, and processes multiple mini-batches concurrently. This approach can significantly reduce inter-GPU communication cost compared to data parallelism. However, pipelined model parallelism faces the weight staleness issue; that is, gradients are computed with stale weights, leading to training instability and accuracy loss. In this paper, we present a pipelined model parallel execution method that enables high GPU utilization while maintaining robust training accuracy via a novel weight prediction technique, SpecTrain. Experimental results show that our proposal achieves up to 8.91x speedup compared to data parallelism on a 4-GPU platform while maintaining comparable model accuracy.

Published
2018

7. Hybrid Aggregation Network for Survival Analysis from Whole Slide Histopathological Images

Author

Chang, Jia-Ren, Lee, Ching-Yi, Chen, Chi-Chung, Reischl, Joachim, Qaiser, Talha, Yeh, Chao-Yuan, Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Woeginger, Gerhard, Editorial Board Member, Yung, Moti, Editorial Board Member, de Bruijne, Marleen, editor, Cattin, Philippe C., editor, Cotin, Stéphane, editor, Padoy, Nicolas, editor, Speidel, Stefanie, editor, Zheng, Yefeng, editor, and Essert, Caroline, editor

Published
2021
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8. Stain Mix-Up: Unsupervised Domain Generalization for Histopathology Images

Author

Chang, Jia-Ren, Wu, Min-Sheng, Yu, Wei-Hsiang, Chen, Chi-Chung, Yang, Cheng-Kung, Lin, Yen-Yu, Yeh, Chao-Yuan, Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Woeginger, Gerhard, Editorial Board Member, Yung, Moti, Editorial Board Member, de Bruijne, Marleen, editor, Cattin, Philippe C., editor, Cotin, Stéphane, editor, Padoy, Nicolas, editor, Speidel, Stefanie, editor, Zheng, Yefeng, editor, and Essert, Caroline, editor

Published
2021
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18. Antimicrobial Susceptibility of E. coli Isolates from Intra-Abdominal Infections in the Asia-Pacific Region: Trends in Ciprofloxacin, Ceftriaxone, Cefepime, and Piperacillin/Tazobactam Susceptibility

Author

Tsai, Chia-Hung, primary, Chen, Yu-Chin, additional, Chen, Po-Yu, additional, Lai, Chih-Cheng, additional, Tang, Hung-Jen, additional, Chuang, Yin-Ching, additional, Chen, Chi-Chung, additional, Ho, Chung-Han, additional, Hsu, Wei-Yun, additional, and Chang, Tu-Hsuan, additional

Published
2023
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23. Antimicrobial Susceptibility of E. coli Isolates from Intra-Abdominal Infections in the Asia-Pacific Region: Trends in Ciprofloxacin, Ceftriaxone, Cefepime, and Piperacillin/Tazobactam Susceptibility

Author

Tsai,Chia-Hung, Chen,Yu-Chin, Chen,Po-Yu, Lai,Chih-Cheng, Tang,Hung-Jen, Chuang,Yin-Ching, Chen,Chi-Chung, Ho,Chung-Han, Hsu,Wei-Yun, Chang,Tu-Hsuan, Tsai,Chia-Hung, Chen,Yu-Chin, Chen,Po-Yu, Lai,Chih-Cheng, Tang,Hung-Jen, Chuang,Yin-Ching, Chen,Chi-Chung, Ho,Chung-Han, Hsu,Wei-Yun, and Chang,Tu-Hsuan

Abstract

Chia-Hung Tsai,1,* Yu-Chin Chen,2,* Po-Yu Chen,3 Chih-Cheng Lai,4,5 Hung-Jen Tang,1 Yin-Ching Chuang,6 Chi-Chung Chen,6,7 Chung-Han Ho,6,8 Wei-Yun Hsu,9,* Tu-Hsuan Chang9,* 1Department of Internal Medicine, Chi Mei Medical Center, Tainan, Taiwan; 2Department of Pediatrics, Chi Mei Medical Center, Chiali, Tainan, Taiwan; 3Department of Nursing, Min-Hwei College of Health Care Management, Tainan, Taiwan; 4Division of Hospital Medicine, Department of Internal Medicine, Chi Mei Medical Center, Tainan, Taiwan; 5School of Medicine, College of Medicine, National Sun Yat-sen University, Kaohsiung, Taiwan; 6Department of Medical Research, Chi Mei Medical Center, Tainan, Taiwan; 7Department of Food Science, National Chiayi University, Chiayi, Taiwan; 8Department of Information Management, Southern Taiwan University of Science and Technology, Tainan, Taiwan; 9Department of Pediatrics, Chi Mei Medical Center, Tainan, Taiwan*These authors contributed equally to this workCorrespondence: Tu-Hsuan Chang; Wei-Yun Hsu, Department of Pediatrics, Chi Mei Medical Center, Tainan, Taiwan, Tel +886-2-281-2811 Ext 57109, Fax +886-6-220-3706, Email a755115@yahoo.com.tw; wyhsu17@gmail.comPurpose: To investigate the antibiotic susceptibility of Escherichia coli isolates in patients diagnosed with intra-abdominal infections (IAIs) in the Asia-Pacific region.Patients and Methods: This study was conducted at 50 medical hospitals across 9 countries/regions as part of the Study for Monitoring Antimicrobial Resistance Trends (SMART) surveillance program from 2014 to 2018. Nonduplicate isolates of aerobic and facultative gram-negative bacilli were collected and processed for further antimicrobial susceptibility testing.Results: A total of 10,709 isolates were collected, with E. coli (n=4737, 44.2%) being the leading pathogen causing IAIs, followed by Klebsiella pneumoniae (n=2429, 22.7%) and Pseudomonas aeruginosa (n=931, 8.7%). Community-associated (CA) E. col

Published
2023

24. Assessing Socioeconomic Impacts of Climate Change on US Forests, Wood-Product Markets, and Forest Recreation : The effects of climate change on forests will trigger market adaptations in forest management and in wood-products industries and may well have significant effects on forest-based outdoor recreation

Author

IRLAND, LLOYD C., ADAMS, DARIUS, ALIG, RALPH, BETZ, CARTER J., CHEN, CHI-CHUNG, HUTCHINS, MARK, McCARL, BRUCE A., SKOG, KEN, and SOHNGEN, BRENT L.

Published
2001
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35. Positioning System in Taipei Children’s Museum of Transportation and Communication

Author

Chou, Tzu-Hsiang, Jin, Ming-Hui, Chen, Chi-Chung, Kao, Cheng-Yan, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Thulasiraman, Parimala, editor, He, Xubin, editor, Xu, Tony Li, editor, Denko, Mieso K., editor, Thulasiram, Ruppa K., editor, and Yang, Laurence T., editor

Published
2007
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38. Estimating the Extreme Behaviors of Students Performance Using Quantile Regression--Evidences from Taiwan

Author

Chen, Sheng-Tung, Kuo, Hsiao-I, and Chen, Chi-Chung

Abstract

The two-stage least squares approach together with quantile regression analysis is adopted here to estimate the educational production function. Such a methodology is able to capture the extreme behaviors of the two tails of students' performance and the estimation outcomes have important policy implications. Our empirical study is applied to the case of students' scores in the Basic Competence Test in Taiwan. The empirical estimation outcomes between traditional OLS and quantile regression on peer-group effects, school characteristics, and family characteristics are diverse and depend on students' ability. Such findings have important implications for parents as well as for government. (Contains 6 tables and 1 figure.)

Published
2012
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