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学者姓名:李建强
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摘要 :
大气污染领域本体的半自动构建及语义推理
关键词 :
语义推理 语义推理 注意力机制 注意力机制 大气污染 大气污染 自然语言处理 自然语言处理 实体关系抽取 实体关系抽取 本体 本体
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GB/T 7714 | 刘博 , 张佳慧 , 李建强 et al. 大气污染领域本体的半自动构建及语义推理 [J]. | 刘博 , 2021 , 47 (3) : 246-259 . |
MLA | 刘博 et al. "大气污染领域本体的半自动构建及语义推理" . | 刘博 47 . 3 (2021) : 246-259 . |
APA | 刘博 , 张佳慧 , 李建强 , 李永 , 郎建垒 , 北京工业大学学报 . 大气污染领域本体的半自动构建及语义推理 . | 刘博 , 2021 , 47 (3) , 246-259 . |
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摘要 :
本发明提供一种图像分割方法及系统,该方法包括:将待分割图像依次经过图像分割模型中的各下采样模块,获取最后一个下采样模块输出的特征图;将最后一个下采样模块输出的特征图依次经过图像分割模型中的各上采样模块,获取最后一个上采样模块输出的特征图;对最后一个上采样模块输出的特征图进行分割,获取最后一个上采样模块输出的特征图的分割结果;其中,任一上采样层的下一层的输入由该上采样层输出的特征图和将该上采样层所属的上采样模块对应的下采样模块输出的特征图输入金字塔池化层后输出的特征图融合获取。本发明实现融合后的特征图包含丰富的浅层特征和深层特征,可以减少特征信息的损失,有效提高图像分割的准确性。
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GB/T 7714 | 李建强 , 刘青 . 图像分割方法及系统 : CN202110048037.1[P]. | 2021-01-14 . |
MLA | 李建强 et al. "图像分割方法及系统" : CN202110048037.1. | 2021-01-14 . |
APA | 李建强 , 刘青 . 图像分割方法及系统 : CN202110048037.1. | 2021-01-14 . |
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摘要 :
The current mode of clinical aided diagnosis of Ocular Myasthenia Gravis (OMG) is time-consuming and laborious, and it lacks quantitative standards. An aided diagnostic system for OMG is proposed to solve this problem. The values calculated by the system include three clinical indicators: eyelid distance, sclera distance, and palpebra superior fatigability test time. For the first two indicators, the semantic segmentation method was used to extract the pathological features of the patient's eye image and a semantic segmentation model was constructed. The patient eye image was divided into three regions: iris, sclera, and background. The indicators were calculated based on the position of the pixels in the segmentation mask. For the last indicator, a calculation method based on the Eyelid Aspect Ratio (EAR) is proposed; this method can better reflect the change of eyelid distance overtime. The system was evaluated based on the collected patient data. The results show that the segmentation model achieves a mean Intersection-Over-Union (mIoU) value of 86.05%. The paired-sample T-test was used to compare the results obtained by the system and doctors, and the p values were all greater than 0.05. Thus, the system can reduce the cost of clinical diagnosis and has high application value.
关键词 :
Convolution Convolution Facial features Facial features Faces Faces Image segmentation Image segmentation ocular myasthenia gravis ocular myasthenia gravis semantic segmentation semantic segmentation computer-aided system computer-aided system Standards Standards Eyelids Eyelids eyelid aspect ratio eyelid aspect ratio Feature extraction Feature extraction
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GB/T 7714 | Liu, Guanjie , Wei, Yan , Xie, Yunshen et al. A Computer-Aided System for Ocular Myasthenia Gravis Diagnosis [J]. | TSINGHUA SCIENCE AND TECHNOLOGY , 2021 , 26 (5) : 749-758 . |
MLA | Liu, Guanjie et al. "A Computer-Aided System for Ocular Myasthenia Gravis Diagnosis" . | TSINGHUA SCIENCE AND TECHNOLOGY 26 . 5 (2021) : 749-758 . |
APA | Liu, Guanjie , Wei, Yan , Xie, Yunshen , Li, Jianqiang , Qiao, Liyan , Yang, Ji-Jiang . A Computer-Aided System for Ocular Myasthenia Gravis Diagnosis . | TSINGHUA SCIENCE AND TECHNOLOGY , 2021 , 26 (5) , 749-758 . |
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摘要 :
目的:利用人脸图像,构建基于深度学习的特纳综合征(Turner syndrome,TS)分类模型,旨在提高TS诊断准确率,降低诊断开销.方法:首先,将通道域注意力机制和空间域注意力机制以及残差结构相结合,提出一种具有混合域注意力模块的残差网络,然后使用深度迁移学习技术完成模型的初始化,最后使用TS人脸数据集对网络模型进行微调.结果:该模型对TS的分类准确率为0.9171.结论:所提出的TS分类模型优于现有TS识别方法,能更为有效地辅助TS的临床诊断.
关键词 :
残差网络 残差网络 通道域注意力机制 通道域注意力机制 空间域注意力机制 空间域注意力机制 特纳综合征 特纳综合征
引用:
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GB/T 7714 | 刘璐 , 李建强 , 陈适 . 基于混合域注意力机制和残差网络的特纳综合征分类研究 [J]. | 中国数字医学 , 2021 , 16 (2) : 16-20 . |
MLA | 刘璐 et al. "基于混合域注意力机制和残差网络的特纳综合征分类研究" . | 中国数字医学 16 . 2 (2021) : 16-20 . |
APA | 刘璐 , 李建强 , 陈适 . 基于混合域注意力机制和残差网络的特纳综合征分类研究 . | 中国数字医学 , 2021 , 16 (2) , 16-20 . |
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摘要 :
本发明涉及一种眼底图像血管的识别方法、装置、电子设备及存储介质,该方法包括:获取待测眼底图像;基于检测算子,提取待测眼底图像的第一特征图像及第二特征图像;基于语义分割模型,提取待测眼底图像的空间形状特征图像;根据第一特征图像、第二特征图像及空间形状特征图像,重建待测眼底图像;将重建后的待测眼底图像输入血管分割模型,得到待测眼底图像的血管分割图像;其中,语义分割模型为根据眼底图像训练集训练得到的;血管分割模型为根据重建的眼底图像训练集训练得到的。本发明通过重建待测眼底图像,提升了图像清晰度,使图形特征更加明显,通过将重建后的眼底图像输入血管分割模型进行血管识别,得到了分割精度更高的血管分割图像。
引用:
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GB/T 7714 | 吕思锐 , 李鹏智 , 杨鑫 et al. 一种眼底图像血管的识别方法、装置、电子设备及存储介质 : CN202110344357.1[P]. | 2021-03-30 . |
MLA | 吕思锐 et al. "一种眼底图像血管的识别方法、装置、电子设备及存储介质" : CN202110344357.1. | 2021-03-30 . |
APA | 吕思锐 , 李鹏智 , 杨鑫 , 李建强 . 一种眼底图像血管的识别方法、装置、电子设备及存储介质 : CN202110344357.1. | 2021-03-30 . |
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摘要 :
基于混合域注意力机制和残差网络的特纳综合征分类研究
关键词 :
残差网络 残差网络 特纳综合征 特纳综合征 空间域注意力机制 空间域注意力机制 通道域注意力机制 通道域注意力机制
引用:
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GB/T 7714 | 刘璐 , 李建强 , 陈适 et al. 基于混合域注意力机制和残差网络的特纳综合征分类研究 [J]. | 刘璐 , 2021 , 16 (2) : 16-20 . |
MLA | 刘璐 et al. "基于混合域注意力机制和残差网络的特纳综合征分类研究" . | 刘璐 16 . 2 (2021) : 16-20 . |
APA | 刘璐 , 李建强 , 陈适 , 中国数字医学 . 基于混合域注意力机制和残差网络的特纳综合征分类研究 . | 刘璐 , 2021 , 16 (2) , 16-20 . |
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摘要 :
本发明提供一种药物推荐方法、装置、电子设备及存储介质。该方法包括:获取目标对象的相关信息;对所述相关信息进行隐私保护预处理;基于已进行隐私保护预处理的所述相关信息以及基于梯度提升决策树算法的模型来生成针对所述目标对象的药物推荐信息。本发明的药物推荐方法在准确、可靠的给患者推荐药物的同时,能够有效地保护患者的隐私;能够对不同类型的数据进行合适的隐私保护处理;推荐算法的鲁棒性较强;在不损失太多精度的情况下,更有效地保护患者的隐私。
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GB/T 7714 | 李建强 , 李媛 , 王延安 . 药物推荐方法、装置、电子设备及存储介质 : CN202110022884.0[P]. | 2021-01-08 . |
MLA | 李建强 et al. "药物推荐方法、装置、电子设备及存储介质" : CN202110022884.0. | 2021-01-08 . |
APA | 李建强 , 李媛 , 王延安 . 药物推荐方法、装置、电子设备及存储介质 : CN202110022884.0. | 2021-01-08 . |
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摘要 :
Both telomere length and alcohol consumption have an important impact on biological age and carcinogenesis. Researchers have conducted many efforts to study the relationship between alcohol consumption and telomere length yet reached no consensus. In this paper, a meta-analysis is performed and relevant investigation results from previous literature are integrated. Twenty-one works of literature published between 2000 and 2016, which comprise 27 analyses with a total samples’ size of 35,891, meet our screening conditions. Whether the relationship between alcohol consumption and telomere length is significant, this issue varies with study type (cohort, case-control, or cross-sectional) and study population (Europe, Asia, American, or Australia). It is deduced by combined evidence that alcohol consumption is associated with telomere length (with Fisher’s combined p-value = 3.52E-8 and Liptak’s weighted p-value = 8.24E-3). In the future, the consistent standardised quantifications of alcohol consumption and telomere length will avail further aggregation of the evidence from various studies. Copyright © 2021 Inderscience Enterprises Ltd.
关键词 :
Chromosomes Chromosomes Screening Screening
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GB/T 7714 | Li, Jianqiang , Guan, Yu , Xu, Xi et al. Association between alcohol consumption and telomere length [J]. | International Journal of Web and Grid Services , 2021 , 17 (1) : 36-59 . |
MLA | Li, Jianqiang et al. "Association between alcohol consumption and telomere length" . | International Journal of Web and Grid Services 17 . 1 (2021) : 36-59 . |
APA | Li, Jianqiang , Guan, Yu , Xu, Xi , Pei, Yan , Hung, Jason C. , Qiu, Weiliang . Association between alcohol consumption and telomere length . | International Journal of Web and Grid Services , 2021 , 17 (1) , 36-59 . |
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摘要 :
Glaucoma is one of the causes that leads to irreversible vision loss. Automatic glaucoma detection based on fundus images has been widely studied in recent years. However, existing methods mainly depend on a considerable amount of labeled data to train the model, which is a serious constraint for real-world glaucoma detection.In this paper, we introduce a transfer learning technique that leverages the fundus feature learned from similar ophthalmic data to facilitate diagnosing glaucoma. Specifically, a Transfer Induced Attention Network (TIA-Net) for automatic glaucoma detection is proposed, which extracts the discriminative features that fully characterize the glaucoma-related deep patterns under limited supervision. By integrating the channel-wise attention and maximum mean discrepancy, our proposed method can achieve a smooth transition between general and specific features, thus enhancing the feature transferability.To delimit the boundary between general and specific features precisely, we first investigate how many layers should be transferred during training with the source dataset network. Next, we compare our proposed model to previously mentioned methods and analyze their performance. Finally, with the advantages of the model design, we provide a transparent and interpretable transferring visualization by highlighting the key specific features in each fundus image. We evaluate the effectiveness of TIA-Net on two real clinical datasets and achieve an accuracy of 85.7%/76.6%, sensitivity of 84.9%/75.3%, specificity of 86.9%/77.2%, and AUC of 0.929 and 0.835, far better than other state-of-the-art methods.Different from previous studies applied classic CNN models to transfer features from the non-medical dataset, we leverage knowledge from the similar ophthalmic dataset and propose an attention-based deep transfer learning model for the glaucoma diagnosis task. Extensive experiments on two real clinical datasets show that our TIA-Net outperforms other state-of-the-art methods, and meanwhile, it has certain medical value and significance for the early diagnosis of other medical tasks.
关键词 :
Attention mechanism Attention mechanism Automatic glaucoma diagnosis Automatic glaucoma diagnosis Deep learning Deep learning Transfer learning Transfer learning
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GB/T 7714 | Xu Xi , Guan Yu , Li Jianqiang et al. Automatic glaucoma detection based on transfer induced attention network. [J]. | Biomedical engineering online , 2021 , 20 (1) : 39 . |
MLA | Xu Xi et al. "Automatic glaucoma detection based on transfer induced attention network." . | Biomedical engineering online 20 . 1 (2021) : 39 . |
APA | Xu Xi , Guan Yu , Li Jianqiang , Ma Zerui , Zhang Li , Li Li . Automatic glaucoma detection based on transfer induced attention network. . | Biomedical engineering online , 2021 , 20 (1) , 39 . |
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摘要 :
The wide adoption of electronic medical record (EMR) systems causes rapid growth of medical and clinical data. It makes the medical named entity recognition (NER) technologies become critical to find useful patient information in the medical dataset. However, the medical terminologies usually have the characteristics of inherent complexity and ambiguity, it is difficult to capture context-dependency representations by supervision signal from a simple single layer structure model. In order to address this problem, this paper proposes a hybrid model based on stacked Bidirectional Long Short-Term Memory (BILSTM) for medical named entity recognition, which we call BSBC (BERT combined with stacked BILSTM and CRF). First, we use Bidirectional Encoder Representation from Transformers (BERT) to perform unsupervised learning on an unlabeled dataset to obtain character-level embeddings. Then, stacked BILSTM is utilized to obtain context-dependency representations through the multi hidden layers structure. Finally, Conditional Random Field (CRF) is used to predict sequence tags. The experiment results show that our method significantly outperforms the baseline methods, it serves as a strong alternative approach compared with traditional methods.
关键词 :
Bidirectional Encoder Representation from Transformers (BERT) Bidirectional Encoder Representation from Transformers (BERT) Electronic medical record (EMR) Electronic medical record (EMR) Named entity recognition (NER) Named entity recognition (NER) Stacked Bidirectional Long Short-Term Memory (BILSTM) Stacked Bidirectional Long Short-Term Memory (BILSTM)
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GB/T 7714 | Zhu, Zhichao , Li, Jianqiang , Zhao, Qing et al. Medical named entity recognition of Chinese electronic medical records based on stacked Bidirectional Long Short-Term Memory [C] . 2021 : 1930-1935 . |
MLA | Zhu, Zhichao et al. "Medical named entity recognition of Chinese electronic medical records based on stacked Bidirectional Long Short-Term Memory" . (2021) : 1930-1935 . |
APA | Zhu, Zhichao , Li, Jianqiang , Zhao, Qing , Wei, Yu-Chih , Jia, Yanhe . Medical named entity recognition of Chinese electronic medical records based on stacked Bidirectional Long Short-Term Memory . (2021) : 1930-1935 . |
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