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4. ECG Identification under Exercise and Rest Situations via Various Learning Methods

Author

Wang, Zihan, Li, Yaoguang, and Cui, Wei

Subjects
Electrical Engineering and Systems Science - Signal Processing, Computer Science - Machine Learning, Statistics - Machine Learning
Abstract

As the advancement of information security, human recognition as its core technology, has absorbed an increasing amount of attention in the past few years. A myriad of biometric features including fingerprint, face, iris, have been applied to security systems, which are occasionally considered vulnerable to forgery and spoofing attacks. Due to the difficulty of being fabricated, electrocardiogram (ECG) has attracted much attention. Though many works have shown the excellent human identification provided by ECG, most current ECG human identification (ECGID) researches only focus on rest situation. In this manuscript, we overcome the oversimplification of previous researches and evaluate the performance under both exercise and rest situations, especially the influence of exercise on ECGID. By applying various existing learning methods to our ECG dataset, we find that current methods which can well support the identification of individuals under rests, do not suffice to present satisfying ECGID performance under exercise situations, therefore exposing the deficiency of existing ECG identification methods.

Published
2019

7. Identifying the Mislabeled Training Samples of ECG Signals using Machine Learning

Author

Li, Yaoguang, Cui, Wei, and Wang, Cong

Subjects
Electrical Engineering and Systems Science - Signal Processing, Computer Science - Computer Vision and Pattern Recognition
Abstract

The classification accuracy of electrocardiogram signal is often affected by diverse factors in which mislabeled training samples issue is one of the most influential problems. In order to mitigate this negative effect, the method of cross validation is introduced to identify the mislabeled samples. The method utilizes the cooperative advantages of different classifiers to act as a filter for the training samples. The filter removes the mislabeled training samples and retains the correctly labeled ones with the help of 10-fold cross validation. Consequently, a new training set is provided to the final classifiers to acquire higher classification accuracies. Finally, we numerically show the effectiveness of the proposed method with the MIT-BIH arrhythmia database.

Published
2017

16. Isolation and Characterization of a Novel Virulent Phage ASG01 of Aeromonas salmonicida and Its Cell Wall Hydrolase Activity.

Author

Li, Chen, Fang, Qiting, Zhang, Yangjun, Li, Kunyan, Li, Yaoguang, Wang, Rong, Peng, Yuyuan, Zhang, Guofan, Xia, Liqiu, and Hu, Shengbiao

Subjects
AEROMONAS salmonicida, ESCHERICHIA coli, PATHOGENIC bacteria, FISH growth, ANTIBIOTIC overuse, AEROMONAS hydrophila, BACTERIOPHAGES
Abstract

Aeromonas salmonicida is an important pathogen that causes furunculosis in trout and salmon with high morbidity and mortality, resulting in significant economic losses in aquaculture. Overuse of antibiotics has led to the continuous emergence of drug-resistant strains. Hence, there is an urgent need to find an alternative environmentally friendly antimicrobial agent. In this study, we isolated a virulent phage of A. salmonicida, named ASG01, which belongs to the Myoviridae family and maintains lytic activity at a pH value range from 4 to 12 and in the temperature range from 30 °C to 60 °C. The whole genomic sequence of ASG01 showed 82% similarity to Aeromonas phage pAh6-C. The cell wall hydrolase (Cwh)-encoding gene from the genome of ASG01 was predicted and heterologously expressed. Notably, in the absence of additional phage genes, endogenous expression of Cwh could lyse E. coli cells and greatly inhibit the growth of tested fish pathogenic bacteria. The lytic activity of Cwh was eliminated when the predicted active site was mutated. These results indicate that Cwh of ASG01 possessed excellent lytic activity and a wide antibacterial spectrum, suggesting its potential as an effective enzybiotic. [ABSTRACT FROM AUTHOR]

Published
2024
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19. Genomic selection in algae with biphasic lifecycles: A Saccharina latissima (sugar kelp) case study

Author

Huang, Mao, primary, Robbins, Kelly R., additional, Li, Yaoguang, additional, Umanzor, Schery, additional, Marty-Rivera, Michael, additional, Bailey, David, additional, Aydlett, Margaret, additional, Schmutz, Jeremy, additional, Grimwood, Jane, additional, Yarish, Charles, additional, Lindell, Scott, additional, and Jannink, Jean-Luc, additional

Published
2023
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21. Estimating production cost for large-scale seaweed farms

Author

Kite-Powell, Hauke L., primary, Ask, Erick, additional, Augyte, Simona, additional, Bailey, David, additional, Decker, Julie, additional, Goudey, Clifford A., additional, Grebe, Gretchen, additional, Li, Yaoguang, additional, Lindell, Scott, additional, Manganelli, Domenic, additional, Marty-Rivera, Michael, additional, Ng, Crystal, additional, Roberson, Loretta, additional, Stekoll, Michael, additional, Umanzor, Schery, additional, and Yarish, Charles, additional

Published
2022
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29. Assessing health-related quality of life and health utilities in patients with chronic hepatitis B-related diseases in China: a cross-sectional study

Author

Zhang, Meng, primary, Li, Yaoguang, additional, Fan, Zihao, additional, Shen, Dongqi, additional, Huang, Xueying, additional, Yu, Qi, additional, Liu, Mei, additional, Ren, Feng, additional, Wang, Xiao, additional, Dai, Liping, additional, Wang, Peng, additional, Ye, Hua, additional, Shi, Jianxiang, additional, Yang, Xiaoang, additional, Zhang, Shunxiang, additional, and Zhang, Jianying, additional

Published
2021
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33. Quality of noodles made from colour-grained wheat

Author

Ma Dongyun, Wang Chenyang, Zhang Jian, and Li Yaoguang

Subjects
0301 basic medicine, 03 medical and health sciences, 030109 nutrition & dietetics, Chemistry, media_common.quotation_subject, Quality (business), Agricultural engineering, Food Science, media_common
Published
2018

40. Variation of Grain Iron and Zinc Contents and Their Bioavailability of Wheat Cultivars with Different-colored Grains under Combined Nitrogen and Phosphorus Fertilization

Author

Ma Dongyun, Sun Wan, Hou Junfeng, Wang Chenyang, Huang Xin, Ma Ying, Zhang Jian, Guo Tian-cai, and Li Yaoguang

Subjects
0301 basic medicine, 030109 nutrition & dietetics, Crop yield, Phosphorus, chemistry.chemical_element, Plant Science, Zinc, Nitrogen, Bioavailability, 03 medical and health sciences, Human fertilization, chemistry, Colored, Agronomy, Cultivar, Agronomy and Crop Science, Biotechnology
Published
2018

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