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Proceedings of the 2021 International Conference on Bioinformatics and Intelligent Computing最新文献

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Numerical modeling and Uncertainty analysis of irreversible electroporation in liver tumors 肝脏肿瘤不可逆电穿孔的数值模拟及不确定性分析
Yuwei Jiang, Lei Yang
There are many conditions that can affect the tumor destruction during ablation of tumor. The purpose of this article is to study which factors influenced the effect of electroporation in the Abdominal surgery. Our research focuses on ablation size and temperature. Five factors were taken into account including pulse intensity (U), electrode diameter (D), the location of the electrode from the center of the tumor (R), electrode length (L) and number of electrode (M). In the study, the changes of the electric field in the ablation area were monitored by numerical modeling and simulation of tumor. At the same time, the degree of tumor ablation was evaluated according to temperature threshold and electric field threshold. A number of experiments were conducted to verify the effect of various parameters on the outcome of tumor treatment. The uncertainty analysis of the experimental results showed that U and L had great influence on the ablation volume, while D, R and M had a small influence. In addition, U, R, and M have significant effects on the maximum temperature, while D and L only have a small impact. Finally, the uncertainty is quantified by using the polynomial chaos expansion to establish a mathematical model between them.
在肿瘤消融过程中,影响肿瘤破坏的因素有很多。本文旨在探讨影响腹部手术电穿孔效果的因素。我们的研究重点是烧蚀尺寸和温度。考虑脉冲强度(U)、电极直径(D)、电极距离肿瘤中心的位置(R)、电极长度(L)和电极数量(M) 5个因素,通过对肿瘤的数值模拟和模拟来监测消融区域内电场的变化。同时根据温度阈值和电场阈值评价肿瘤消融程度。我们进行了大量的实验来验证各种参数对肿瘤治疗结果的影响。实验结果的不确定性分析表明,U和L对烧蚀体积的影响较大,而D、R和M的影响较小。另外,U、R、M对最高温度影响显著,而D、L影响较小。最后,利用多项式混沌展开对不确定性进行量化,建立了二者之间的数学模型。
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引用次数: 1
Visual analysis based on the research of SARS and COVID-19: a 20-year bibliometric study 基于SARS和COVID-19研究的可视化分析:20年文献计量学研究
Qifang Liang, Buping Liu, Chunping Liu, Wenxing Liu, Xiaoxue Han, Limei Wan, Xiaobo Chen, Peng wu, Hongyu Li, Yujiao Sun, Yubin Yang, Weixiong Chen
Background: At present, with the continuous development of the epidemic, scholars at home and abroad have paid great attention to Corona Virus Discrease 2019(COVID-19), especially with SARS, comprehensive biology combined and carried out a series of research and discussion. Research on such topics has gradually increased, but the hot topics of research still not clear. Purpose: The goal of the research was to perform a systematic review on the use of biomedicine in medical research with the aim of understanding the global progress on COVID-19 research outcomes, content, methods, and study groups involved. Methods: The SARS documents were retrieved in the core collection of Web of Science, and analyze the data with Excel and VOSviewer.to perform bibliometric analysis of publication trends, author orders, countries, institutions, collaboration relationships, research hot spots, diseases studied, and research methods. Data Synthesis: A total of 50,744 original research articles were included. The number of articles published in the first 3 years showed an overall upward trend and then gradually declined to basically the same. It accounts for 2.087% of the total number of posts, reaching a peak of 31050 in 2020, accounting for 61.190% of the total. From 6,976 journals, 18 journals with more than 250 articles published, more than half of the journals are in JCR Zone 1, and most of the influence factors are between 2-7 points; the included literature involves 61684 authors, and most of the authors are scattered. The included literature involved 9738 institutions. Among the first 18 institutions, more than 80% were colleges and hospitals. A total of 37,817 keywords are listed, with an average of 2.65 keywords. The top 7 in frequency of use are acute lung injury, acute respiratory distress syndrome, respiratory-distress-syndrome, aras, mechanical ventilation, and mortality. The centrality is more than 7000, and the number of occurrences is more than 1000. The research direction of SARS focuses on: RESPIRATORY SYSTEM, INFECTIOUS DISEASES, PUBLIC ENVIRONMENTAL OCCUPATIONAL HEALTH, BIOCHEMISTRY MOLECULAR BIOLOGY and HEALTH CARE SCIENCES SERVICES, which are all higher than 27% of the total, and the records are higher than 13,900. High-frequency keyword clustering and overlay view analysis: (1) In terms of mechanism research, gene structure, virus detection, outbreak prevention and protection, etc. are the major research hotspots. (2) In terms of target therapy, animal molecular experiments such as protein, activation, modle mode, potent inhibitors, laboratory tests, and immune response are the research hotspots. Conclusions: Based on the research of SARS literature, preliminary research suggests that COVID-19 research will increase rapidly by multiples, and the popularity of research continues. In terms of public health and epidemic prevention, the world still needs to form a stronger team. It needs to do a good job of inheritance, achieve full prevention an
背景:当前,随着疫情的不断发展,国内外学者对2019冠状病毒病(COVID-19)给予了高度关注,特别是与SARS、综合生物学相结合,开展了一系列研究和探讨。这类课题的研究逐渐增多,但研究热点仍不明确。目的:本研究的目的是对生物医学在医学研究中的应用进行系统综述,目的是了解COVID-19研究成果、内容、方法和涉及的研究组的全球进展。方法:从Web of Science核心馆藏中检索SARS文献,应用Excel和VOSviewer进行数据分析。对出版趋势、作者顺序、国家、机构、合作关系、研究热点、研究疾病和研究方法进行文献计量分析。数据综合:共纳入50,744篇原创研究论文。前3年发表的文章数量总体呈上升趋势,之后逐渐下降,基本持平。占总岗位数的2.087%,到2020年达到峰值31050个,占总岗位数的61.190%。6976种期刊中,发表文章超过250篇的期刊有18种,超过一半的期刊处于JCR 1区,影响因子大部分在2-7分之间;纳入文献涉及作者61684人,作者多为散居。纳入文献涉及9738家机构。在前18个机构中,80%以上是高等院校和医院。共列出37817个关键词,平均2.65个关键词。使用频率排名前7位的分别是急性肺损伤、急性呼吸窘迫综合征、呼吸窘迫综合征、急性呼吸窘迫综合征、机械通气和死亡率。中心性大于7000次,出现次数大于1000次。SARS的研究方向主要集中在:呼吸系统、传染病、公共环境职业卫生、生物化学分子生物学和卫生保健科学服务,均高于总数的27%,记录量超过1.39万份。高频关键词聚类与叠加视图分析:(1)在机制研究方面,基因结构、病毒检测、疫情防控等是主要研究热点。(2)在靶向治疗方面,蛋白质、活化、模型模式、强效抑制剂、实验室试验、免疫应答等动物分子实验是研究热点。结论:基于对SARS文献的研究,初步研究表明,COVID-19研究将以数倍的速度快速增加,研究的普及程度将继续提高。在公共卫生和疫情防控方面,世界各国仍然需要形成一个更强大的团队。需要做好传承,做到充分防控绩效,创新成果,借鉴常用词聚类和知识图挖掘潜力领域,促进权威创新的出现。研究趋势将从诊断和治疗的发展扩展到人-社会-生物环境,为全球抗击疫情作出重要贡献。
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引用次数: 0
A Learning and Practicing System to Support Effective Poetry Generation Based on Neural Network 基于神经网络的有效诗歌生成学习与实践系统
Tianqi Gao
Chinese ancient poetry has been a favorite literary form and is still very popular after thousands of years. As opposed to free language, poetry has the characteristics of aestheticism and conciseness. People can easily judge the quality of ancient poetry, so the generation of ancient poetry can be used as an important method for beginners to learn NLG models and judge the performance of the models. Therefore, we present a novel system called LiBai to facilitate the comprehensive generation and analysis of poetry. The system LiBai includes two main functionality modules - a versatile model library and a user-friendly and interactive studio. LiBai can help user: 1) learn popular poetry generation models systematically, including the model introduction, network structures and performances; 2) through adjusting various model parameters, interactive training, predicting and directly apply these models on real data easily and 3) simply and quickly analyse the generated poetry.
中国古诗一直是一种受欢迎的文学形式,几千年后仍然很受欢迎。相对于自由语言,诗歌具有唯美性和简洁性。人们很容易判断古诗的质量,所以古诗的生成可以作为初学者学习NLG模型和判断模型性能的重要方法。因此,我们提出了一种叫做“立白”的小说系统,以方便诗歌的全面生成和分析。LiBai系统包括两个主要功能模块——一个通用的模型库和一个用户友好的交互式工作室。李白可以帮助用户:1)系统学习流行的诗歌生成模型,包括模型介绍、网络结构和表演;2)通过调整各种模型参数,进行交互训练,轻松预测并直接应用于实际数据;3)简单快速地分析生成的诗歌。
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引用次数: 0
An Interpretable Deep Learning System for Automatic Intracranial Hemorrhage Diagnosis with CT Image 基于CT图像的颅内出血自动诊断的可解释深度学习系统
Zhongxuan Wang, Leiming Wu, Xiangcheng Ji
Intracranial Hemorrhage (ICH), a dangerous and devastating medical emergency, affects thousands of patients every year around the world. In the clinical settings, Computer Tomography (CT), is widely used for diagnosis of neurological diseases. In the situation of Intracranial Hemorrhage, not only saving time is critically important, but also the expertise to accurately diagnose and locate ICH is imperative. However, there are not always enough doctors working in the emergency expert in the field of ICH, and the results from using only deep learning models are not always reliable. Three neural networks, VGG-19, Resnet-101, and DenseNet-201 were trained separately on preprocessed the Intracranial hemorrhage data with labels and used the Grad-CAM method to produce a saliency map by visualizing the process of the network making a decision regarding to specific class index, thus increasing the interpretability of the results. We tested the networks' performances on our preprocessed CT data, and their differences produced saliency maps. Three experiments were designed and conducted to help us understand our models' performance and predictions in different contexts. First, we observed the differences between the pre-trained deep learning model and the unpre-trained deep learning models. Second, we observed how the performance and Grad-CAM results would differ when the images were normalized at different Window values. Third, we merged the six Grad-CAM images generated by the six class indices for each image into a single image and fed it into the network to observe the results. To further demonstrate the potential application of our deep learning models, we used trained models to make a GUI software called ICH Deep Learning Detector in python with the PyQt5 library to simplify the process of doctors using the deep learning model and learning from predictions.
颅内出血(ICH)是一种危险和毁灭性的医疗紧急情况,每年影响着世界各地成千上万的患者。在临床上,计算机断层扫描(CT)被广泛用于神经系统疾病的诊断。在颅内出血的情况下,不仅节省时间至关重要,而且准确诊断和定位脑出血的专业知识也至关重要。然而,在ICH领域的急诊专家中并不总是有足够的医生,仅使用深度学习模型的结果并不总是可靠的。分别对VGG-19、Resnet-101和DenseNet-201三个神经网络进行带标签预处理的颅内出血数据训练,并使用Grad-CAM方法通过可视化网络对特定类别指标的决策过程生成显著性图,从而提高结果的可解释性。我们在预处理的CT数据上测试了这些网络的性能,它们之间的差异产生了显著性图。我们设计并实施了三个实验,以帮助我们理解模型在不同背景下的表现和预测。首先,我们观察了预训练深度学习模型和未训练深度学习模型之间的差异。其次,我们观察了当图像在不同的Window值下归一化时,性能和Grad-CAM结果是如何不同的。第三,我们将每张图像的6个类指标生成的6张Grad-CAM图像合并为一张图像,并将其送入网络观察结果。为了进一步展示我们的深度学习模型的潜在应用,我们使用经过训练的模型用python与PyQt5库制作了一个名为ICH深度学习检测器的GUI软件,以简化医生使用深度学习模型并从预测中学习的过程。
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引用次数: 3
Performance Validation of Yolo Variants for Object Detection Yolo变量在目标检测中的性能验证
Kaiyue Liu, Haitong Tang, Shuang He, Qin Yu, Yulong Xiong, Ni-zhuan Wang
Object detection is a core part of an intelligent surveillance system and a fundamental algorithm in the field of identity identification, which is of great practical importance. Since the YOLO series algorithms have good results in terms of accuracy and speed, YOLO and each subsequent version have been surpassing. Thus, in this paper, it carries out experiments on three versions of popular YOLO models such as yolov3, yolov4, and yolov5 (yolov5l, yolov5m, yolov5s, yolov5x). The performance of the three versions of YOLO model is analyzed and summarized by training and predicting the public VOC dataset. Results showed that the yolov4 model is higher than the yolov3 model in terms of mAP values, but slightly lower in terms of speed, while the yolov5 series model is better than the yolov3 and yolov4 models both in terms of mAP values and speed.
目标检测是智能监控系统的核心部分,是身份识别领域的基本算法,具有重要的现实意义。由于YOLO系列算法在精度和速度方面都取得了不错的效果,YOLO及其后续版本一直在超越。因此,本文在yolov3、yolov4、yolov5三个版本(yolov5l、yolov5m、yolov5s、yolov5x)上进行了实验。通过对公共VOC数据集的训练和预测,对三个版本的YOLO模型的性能进行了分析和总结。结果表明,yolov4模型的mAP值高于yolov3模型,但在速度方面略低于yolov3模型,而yolov5系列模型在mAP值和速度方面都优于yolov3和yolov4模型。
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引用次数: 29
Comparison of Pharmacokinetic Effects of Ibuprofen Based on Three Statistical Methods 基于三种统计方法的布洛芬药代动力学效应比较
Wanqing Peng, Haoxuan Li
Ibuprofen is an antipyretic and analgesic anti-inflammatory drug. In order to study the pharmacokinetic characteristics of Chinese healthy adults after ibuprofen injection, this article establishes a pharmacokinetic nonlinear mixed effect model to analyze the blood concentration and clinical characteristics of ibuprofen of 12 healthy volunteers after a single dose. Three statistical methods, FO (First-order), FOCE-I (First-order conditional estimation with interaction), and BAYES (Markov chain Monte Carlo Bayesian) are used to estimate the parameters of the population pharmacokinetics, then analyze and compare in terms of relative standard error, goodness of fit and convergence speed. BAYES is suitable for higher estimation requirements of goodness of fit, FOCE-I is suitable for estimation that needs to consider residuals and inter-individual variation, and FO is suitable for the evaluation of massive medical data, in which the estimands needs to be obtained with higher convergence speed.
布洛芬是一种解热镇痛抗炎药。为了研究我国健康成人注射布洛芬后的药代动力学特征,本文建立了药代动力学非线性混合效应模型,分析12名健康志愿者单次给药后布洛芬血药浓度及临床特征。采用FO(一阶)、fce - i(一阶条件估计)和BAYES(马尔可夫链蒙特卡罗贝叶斯)三种统计方法对种群药代动力学参数进行估计,并从相对标准误差、拟合优度和收敛速度等方面进行分析比较。BAYES适用于对拟合优度要求较高的估计,fce -i适用于需要考虑残差和个体间变异的估计,FO适用于需要以较高收敛速度获得估计的海量医疗数据的评估。
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引用次数: 0
Application and Comparison of Artificial Neural Networks and XGBoost on Alzheimer's Disease 人工神经网络与XGBoost在阿尔茨海默病中的应用及比较
Xinyu Sun
Alzheimer's disease (AD) is a kind of brain disease, which causes abnormal memory loss, thought chaos, and behavior confusion. There are still no effective methods or medicine to prevent the worsening of AD. The best way at present is to reduce the risk of getting AD. In this paper, the author constructs an artificial neural network (ANN) and XGBoost to determine whether or not a person gets AD, by analyzing how related factors impact the group a person belonging to. The Open Access Series of Imaging Studies (OASIS) longitudinal MRI data were analyzed cross age, gender, education, social economic status (SES), mini mental state examination (MMSE), estimated total intracranial volume (eTIV), clinical dementia rating (CDR), normalized whole brain volume (nBWV), and atlas scaling factor (ASF). The purpose of this study is to decide whether a person is demented or not by comparing two classic methods, thus to explore the advantages and disadvantages of two models in real world application. The analysis is helpful to predict and model the different features in non-demented and demented people, therefore giving a clearer perspective for reducing people's risk of dementia by making appropriate adjustments. The accuracy of testing with ANN is 89.3%, with 37 matched non-demented and 30 matched demented out of 75 observations, which is 20% testing set. The accuracy of fitting the data is 93.3% for XGBoost, with 38 matched non-demented and 32 matched demented out of 75 observations. K-fold cross validation is applied to improve the accuracy rate. The accuracy is then improved to 95.6% for ANN and 99.6% for XGBoost. In conclusion, the result is consistent with the former literature study, showing that the machine learning method is more accurate than deep learning.
阿尔茨海默病(AD)是一种脑部疾病,它会导致异常的记忆丧失、思维混乱和行为混乱。目前仍没有有效的方法或药物来预防阿尔茨海默病的恶化。目前最好的办法是降低患阿尔茨海默病的风险。本文通过分析相关因素对个体所属群体的影响,构建人工神经网络(ANN)和XGBoost来判断个体是否患有AD。对开放获取影像研究系列(OASIS)纵向MRI数据进行跨年龄、性别、教育程度、社会经济地位(SES)、迷你精神状态检查(MMSE)、估计总颅内容量(eTIV)、临床痴呆评分(CDR)、标准化全脑容量(nBWV)和寰椎比例因子(ASF)的分析。本研究的目的是通过比较两种经典的方法来判断一个人是否痴呆,从而探讨两种模型在实际应用中的优缺点。该分析有助于对非痴呆和痴呆人群的不同特征进行预测和建模,从而为通过适当调整来降低人们患痴呆的风险提供更清晰的视角。人工神经网络测试的准确率为89.3%,75个观测值中有37个匹配的非痴呆,30个匹配的痴呆,这是20%的测试集。XGBoost的数据拟合精度为93.3%,在75个观测值中有38个匹配的非痴呆和32个匹配的痴呆。采用K-fold交叉验证提高准确率。ANN的准确率提高到95.6%,XGBoost的准确率提高到99.6%。综上所述,结果与之前的文献研究一致,表明机器学习方法比深度学习更准确。
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引用次数: 2
Optimization of E-commerce Website Structure based on Particle Swarm Optimization and Genetic Algorithm 基于粒子群优化和遗传算法的电子商务网站结构优化
J. Hu
The use of various algorithm models based on computer platform is a universal and supporting core technology. When the development team or decision maker faces some important and difficult problems, the computer algorithm model can be used to calculate, optimize and solve complex problems, and complete the simulation by model simulation steps. In this paper, through the combination of genetic algorithm and particle swarm optimization, firstly, the optimization method of e-commerce website structure was put forward. Then, the real data was used to check the computation. Finally, the simulation analysis was carried out by simulation software. The simulation results show that it is feasible and reliable to optimize the structure of e-commerce website by using genetic algorithm and particle swarm optimization.
利用基于计算机平台的各种算法模型是一项通用性和支持性的核心技术。当开发团队或决策者面临一些重要而困难的问题时,可以利用计算机算法模型对复杂问题进行计算、优化和求解,并按模型仿真步骤完成仿真。本文通过遗传算法与粒子群算法的结合,首先提出了电子商务网站结构的优化方法。然后用实际数据对计算结果进行验证。最后利用仿真软件进行仿真分析。仿真结果表明,采用遗传算法和粒子群算法对电子商务网站结构进行优化是可行和可靠的。
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引用次数: 0
Curative Effect of Tongyu Decoction on Neurological Deficit and Rehabilitation Effect of Patients with Cerebral Hemorrhage in Recovery Period 通瘀汤对脑出血恢复期患者神经功能缺损的疗效及康复效果
Sheng-fang Zhou
Objective: This paper is to explore the effect of Tongyu Decoction on neurological deficits and rehabilitation effects in patients with cerebral hemorrhage during recovery. Methods: A total of 100 patients with cerebral hemorrhage in recovery period were selected as the research objects in this study. The study was carried out from December 2019 to December 2020. The random number table method was applied, and 100 patients were divided into equal groups, with 50 patients in each group named experimental group and control group, which applied conventional Western medicine and Tongyu Decoction respectively, and then compared the treatment of the two groups. Results: Before treatment, there was no significant difference in the NIHSS scores of the two groups of patients, P>0.05. After treatment, the scores all declined, but the decline in the experimental group was more significant, which was quite different from the control group, P<0.05, at the same time the rehabilitation efficiency and satisfaction of the experimental group were 94.00% and 96.00%, which were significantly higher than those of the control group. The data differences between the groups were relatively significant, P<0.05, the experimental group had better results. Conclusion: The application of Tongyu Decoction in patients with cerebral hemorrhage during the recovery period can effectively promote the recovery of patients with neurological deficits, strengthen the rehabilitation effect, and improve patient satisfaction. The clinical intervention effect is significant.
目的:探讨通瘀汤对脑出血恢复期患者神经功能缺损及康复效果的影响。方法:选取100例恢复期脑出血患者作为研究对象。该研究于2019年12月至2020年12月进行。采用随机数字表法,将100例患者分为两组,每组各50例患者命名为实验组和对照组,分别应用西医常规治疗和通瘀汤治疗,比较两组患者的治疗效果。结果:治疗前,两组患者NIHSS评分比较,差异均无统计学意义,P < 0.05。治疗后各评分均下降,但实验组下降更为显著,与对照组差异有统计学意义(P<0.05),同时实验组的康复效率和满意度分别为94.00%和96.00%,显著高于对照组。各组间数据差异比较显著,P<0.05,实验组效果较好。结论:通瘀汤应用于脑出血恢复期患者,可有效促进神经功能缺损患者的康复,强化康复效果,提高患者满意度。临床干预效果显著。
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引用次数: 0
Application of Artificial Intelligence in Medical Imaging Diagnosis 人工智能在医学影像诊断中的应用
Baoming Zhang, Weili Yue, Qian Liu, Shimin Hu
The development of artificial intelligence promotes the great progress of medical imaging diagnosis. Based on this, this paper reviews and discusses the medical image diagnosis based on artificial intelligence in recent years, introduces the procedure of medical image diagnosis, the algorithms involved and the key progress, analyzes the shortcomings of the current technology, and the possible development direction in the future.
人工智能的发展促进了医学影像诊断的巨大进步。在此基础上,本文对近年来基于人工智能的医学图像诊断进行了综述和讨论,介绍了医学图像诊断的流程、涉及的算法和关键进展,分析了当前技术的不足,以及未来可能的发展方向。
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引用次数: 2
期刊
Proceedings of the 2021 International Conference on Bioinformatics and Intelligent Computing
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