5G无线技术和社会经济转型的最新进展带来了传感器应用的范式转移。 Wi-Fi信号表明其时间变化与身体运动之间存在很强的相关性,可以利用这些变化来识别人类活动。在本文中,我们证明了基于时间尺度Wi-Fi通道状态信息的自由互助人与人类相互作用识别方法的认知能力。所检查的共同活动是稳定的,接近,离职的,握手的,高五,拥抱,踢(左腿),踢(右腿),指向(左手),指向(右手),拳打(左手),打孔(右手)和推动。我们探索并提出了一个自我发项的双向封盖复发性神经网络模型,以从时间序列数据中对13种人类到人类的相互作用类型进行分类。我们提出的模型可以识别两个主题对相互作用,最大基准精度为94%。这已经扩展了十对对象,该对象对围绕交互 - 转变区域的分类得到了改善,从而确保了88%的基准精度。同样,使用PYQT5 Python模块开发了可执行的图形用户界面(GUI),以实时显示总体相互交流识别过程。最后,我们简要地讨论了有关残障的可能解决方案,这些解决方案导致了研究期间观察到的缩减。这种Wi-Fi渠道扰动模式分析被认为是一种有效,经济和隐私友好的方法,可在相互的人际关系识别中用于室内活动监测,监视系统,智能健康监测系统和独立的辅助生活。
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Covid-19 Pandemic是一个持续的全球大流行,这导致了公共卫生部门和全球经济中的前所未有的中断。病毒,SARS-COV-2负责冠状病毒病的快速传播。由于其传染性,病毒可以容易地感染不受保护和暴露的个体,从轻度到严重症状。对怀孕母亲和新生儿的病毒效应的研究现在是平民和公共卫生工作者在全球范围内的关于病毒如何影响母亲和新生儿健康的问题。本文旨在制定一种预测模型,以估算基于记录的症状的携带型患者死亡的可能性:呼吸困难,咳嗽,鼻子,关节痛和肺炎的诊断。我们研究中使用的机器学习模型是支持向量机,决策树,随机林,渐变升压和人工神经网络。该模型提供了令人印象深刻的结果,可以准确地预测给定输入的怀孕母亲的死亡率。3型号(ANN,渐变升压,随机林)的精度率为100%,最高精度得分(梯度提升,ANN)是95 %,最高召回(支持向量机)为92.75%,最高F1得分(梯度提升,ANN)为94.66%。由于模型的准确性,怀孕的母亲可以基于其由于病毒而导致的可能性即时治疗。全球卫生工人可以利用该模型列出急诊患者,最终可以降低Covid-19诊断患者的死亡率。
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Handwritten character recognition is a hot topic for research nowadays. If we can convert a handwritten piece of paper into a text-searchable document using the Optical Character Recognition (OCR) technique, we can easily understand the content and do not need to read the handwritten document. OCR in the English language is very common, but in the Bengali language, it is very hard to find a good quality OCR application. If we can merge machine learning and deep learning with OCR, it could be a huge contribution to this field. Various researchers have proposed a number of strategies for recognizing Bengali handwritten characters. A lot of ML algorithms and deep neural networks were used in their work, but the explanations of their models are not available. In our work, we have used various machine learning algorithms and CNN to recognize handwritten Bengali digits. We have got acceptable accuracy from some ML models, and CNN has given us great testing accuracy. Grad-CAM was used as an XAI method on our CNN model, which gave us insights into the model and helped us detect the origin of interest for recognizing a digit from an image.
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Jamdani is the strikingly patterned textile heritage of Bangladesh. The exclusive geometric motifs woven on the fabric are the most attractive part of this craftsmanship having a remarkable influence on textile and fine art. In this paper, we have developed a technique based on the Generative Adversarial Network that can learn to generate entirely new Jamdani patterns from a collection of Jamdani motifs that we assembled, the newly formed motifs can mimic the appearance of the original designs. Users can input the skeleton of a desired pattern in terms of rough strokes and our system finalizes the input by generating the complete motif which follows the geometric structure of real Jamdani ones. To serve this purpose, we collected and preprocessed a dataset containing a large number of Jamdani motifs images from authentic sources via fieldwork and applied a state-of-the-art method called pix2pix to it. To the best of our knowledge, this dataset is currently the only available dataset of Jamdani motifs in digital format for computer vision research. Our experimental results of the pix2pix model on this dataset show satisfactory outputs of computer-generated images of Jamdani motifs and we believe that our work will open a new avenue for further research.
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概念诱导是基于正式的逻辑推理在描述逻辑上的,已在本体工程中使用,以从基本数据(ABOX)图创建本体(Tbox)公理。在本文中,我们表明它也可以用来解释数据差异,例如在可解释的AI(XAI)的背景下,我们表明它实际上可以以对人类观察者有意义的方式进行。我们的方法利用了从Wikipedia类别层次结构策划的大型层次结构,作为背景知识。
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本文介绍了同时定位和基于映射的自主导航系统的开发。本研究的动机是寻找一个自主导航内部空间的解决方案。内部导航是挑战,因为它可以永远发展。解决这个问题是众多服务,如清洁,卫生行业和制造业。本文的重点是为此提出的自主系统开发的基于奴役的软件架构的描述。评估了该系统的潜在应用,以智能轮椅为导向。当前的内部导航解决方案需要某种引导线,就像地板上的黑线一样。通过这种提出的解决方案,内部不需要装修以适应该解决方案。此应用程序的源代码已成为开源,以便可以为类似的应用重新饰。此外,该开源项目被设想通过广泛的开源社区在其当前状态后得到改善。
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A total of 605 eligible respondents took part in this survey (population size 1630046161 and required sample size 591) with an age range of 18 to 100. A large proportion of the respondents are aged less than 50 (82%) and male (62.15%). The majority of the respondents live in urban areas (60.83%). A total of 61.16% (370/605) of the respondents were willing to accept/take the COVID-19 vaccine. Among the accepted group, only 35.14% showed the willingness to take the COVID-19 vaccine immediately, while 64.86% would delay the vaccination until they are confirmed about the vaccine s efficacy and safety or COVID-19 becomes deadlier in Bangladesh. The regression results showed age, gender, location (urban/rural), level of education, income, perceived risk of being infected with COVID-19 in the future, perceived severity of infection, having previous vaccination experience after age 18, having higher knowledge about COVID-19 and vaccination were significantly associated with the acceptance of COVID-19 vaccines. The research reported a high prevalence of COVID-19 vaccine refusal and hesitancy in Bangladesh.
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Migraine is a high-prevalence and disabling neurological disorder. However, information migraine management in real-world settings could be limited to traditional health information sources. In this paper, we (i) verify that there is substantial migraine-related chatter available on social media (Twitter and Reddit), self-reported by migraine sufferers; (ii) develop a platform-independent text classification system for automatically detecting self-reported migraine-related posts, and (iii) conduct analyses of the self-reported posts to assess the utility of social media for studying this problem. We manually annotated 5750 Twitter posts and 302 Reddit posts. Our system achieved an F1 score of 0.90 on Twitter and 0.93 on Reddit. Analysis of information posted by our 'migraine cohort' revealed the presence of a plethora of relevant information about migraine therapies and patient sentiments associated with them. Our study forms the foundation for conducting an in-depth analysis of migraine-related information using social media data.
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Deep learning has made a breakthrough in medical image segmentation in recent years due to its ability to extract high-level features without the need for prior knowledge. In this context, U-Net is one of the most advanced medical image segmentation models, with promising results in mammography. Despite its excellent overall performance in segmenting multimodal medical images, the traditional U-Net structure appears to be inadequate in various ways. There are certain U-Net design modifications, such as MultiResUNet, Connected-UNets, and AU-Net, that have improved overall performance in areas where the conventional U-Net architecture appears to be deficient. Following the success of UNet and its variants, we have presented two enhanced versions of the Connected-UNets architecture: ConnectedUNets+ and ConnectedUNets++. In ConnectedUNets+, we have replaced the simple skip connections of Connected-UNets architecture with residual skip connections, while in ConnectedUNets++, we have modified the encoder-decoder structure along with employing residual skip connections. We have evaluated our proposed architectures on two publicly available datasets, the Curated Breast Imaging Subset of Digital Database for Screening Mammography (CBIS-DDSM) and INbreast.
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当今智能城市中产生的大型视频数据从其有目的的用法角度引起了人们的关注,其中监视摄像机等是最突出的资源,是为大量数据做出贡献的最突出的资源,使其自动化分析成为计算方面的艰巨任务。和精确。暴力检测(VD)在行动和活动识别域中广泛崩溃,用于分析大型视频数据,以了解由于人类而引起的异常动作。传统上,VD文献基于手动设计的功能,尽管开发了基于深度学习的独立模型的进步用于实时VD分析。本文重点介绍了深度序列学习方法以及检测到的暴力的本地化策略。该概述还介入了基于机器学习的初始图像处理和基于机器学习的文献及其可能具有的优势,例如针对当前复杂模型的效率。此外,讨论了数据集,以提供当前模型的分析,并用对先前方法的深入分析得出的VD域中的未来方向解释了他们的利弊。
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