这篇简短的论文提出了对当前在社交媒体上使用的美容过滤器技术中种族偏见的初步研究。获得的结果是对计算机视觉研究人员的行动呼吁:这种偏见的风险被复制和夸大了,因此,他们值得从社区那里得到更多关注。
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在自拍照上的增强现实或AR过滤器在社交媒体平台上已经非常受欢迎,用于各种应用程序,包括营销,娱乐和美学。鉴于AR面部过滤器的广泛采用以及面孔在我们的社会结构和关系中的重要性,科学界从心理,艺术和社会学的角度分析此类过滤器的影响增加了。但是,该领域的定量分析很少,这主要是由于缺乏具有应用AR过滤器的面部图像的公开数据集。大多数社交媒体平台的专有性,紧密的性质不允许用户,科学家和从业人员访问代码和可用AR面孔过滤器的详细信息。从这些平台上刮擦面孔以收集数据在道德上是不可接受的,因此应在研究中避免。在本文中,我们介绍了OpenFilter,这是一个灵活的框架,可在社交媒体平台上使用AR过滤器,可在现有的大量人体面孔上使用。此外,我们共享FairBeauty和B-LFW,这是公开可用的Fairface和LFW数据集的两个美化版本,我们概述了这些美化数据集的分析得出的见解。
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Testing Deep Learning (DL) based systems inherently requires large and representative test sets to evaluate whether DL systems generalise beyond their training datasets. Diverse Test Input Generators (TIGs) have been proposed to produce artificial inputs that expose issues of the DL systems by triggering misbehaviours. Unfortunately, such generated inputs may be invalid, i.e., not recognisable as part of the input domain, thus providing an unreliable quality assessment. Automated validators can ease the burden of manually checking the validity of inputs for human testers, although input validity is a concept difficult to formalise and, thus, automate. In this paper, we investigate to what extent TIGs can generate valid inputs, according to both automated and human validators. We conduct a large empirical study, involving 2 different automated validators, 220 human assessors, 5 different TIGs and 3 classification tasks. Our results show that 84% artificially generated inputs are valid, according to automated validators, but their expected label is not always preserved. Automated validators reach a good consensus with humans (78% accuracy), but still have limitations when dealing with feature-rich datasets.
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The reconstruction of images from their corresponding noisy Radon transform is a typical example of an ill-posed linear inverse problem as arising in the application of computerized tomography (CT). As the (na\"{\i}ve) solution does not depend on the measured data continuously, regularization is needed to re-establish a continuous dependence. In this work, we investigate simple, but yet still provably convergent approaches to learning linear regularization methods from data. More specifically, we analyze two approaches: One generic linear regularization that learns how to manipulate the singular values of the linear operator in an extension of [1], and one tailored approach in the Fourier domain that is specific to CT-reconstruction. We prove that such approaches become convergent regularization methods as well as the fact that the reconstructions they provide are typically much smoother than the training data they were trained on. Finally, we compare the spectral as well as the Fourier-based approaches for CT-reconstruction numerically, discuss their advantages and disadvantages and investigate the effect of discretization errors at different resolutions.
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安全是空中交通时的主要问题。通过成对分离最小值确保无人驾驶飞机(无人机)之间的飞行安全性,利用冲突检测和分辨方法。现有方法主要处理成对冲突,但由于交通密度的预期增加,可能会发生两个以上的无人机的遇到。在本文中,我们将多UAV冲突解决模型作为多功能加强学习问题。我们实现了一种基于图形神经网络的算法,配合代理可以与共同生成分辨率的操作进行通信。该模型在具有3和4个当前代理的情况下进行评估。结果表明,代理商能够通过合作策略成功解决多UV冲突。
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乳腺癌是最常见的癌症,并寄存癌症的妇女的最多死亡人数。结合大规模筛查政策的诊断活动的最新进展显着降低了乳腺癌患者的死亡率。然而,病理学家手动检查病理学家的载玻片是麻烦的,耗时的,并且受到显着的和观察者内的变异性。最近,全幻灯片扫描系统的出现授权了病理幻灯片的快速数字化,并启用了开发数字工作流程。这些进步进一步使利用人工智能(AI)来协助,自动化和增强病理诊断。但是AI技术,尤其是深度学习(DL),需要大量的高质量注释数据来学习。构建此类任务特定的数据集造成了几个挑战,例如数据获取级别约束,耗时和昂贵的注释,以及私人信息的匿名化。在本文中,我们介绍了乳腺癌亚型(BRACS)DataSet,一个大队列的注释血清杂环蛋白和eosin(H&E) - 染色的图像,以促进乳房病变的表征。 BRACS包含547个全幻灯片图像(WSIS),并从WSI中提取4539个兴趣区域(ROI)。每个WSI和各自的ROI都是通过三个董事会认证的病理学家的共识注释为不同的病变类别。具体而言,Bracs包括三种病变类型,即良性,恶性和非典型,其进一步亚级分为七个类别。据我们所知,这是WSI和ROI水平的最大的乳腺癌亚型的附带数据集。此外,通过包括被升值的非典型病变,Bracs提供了利用AI更好地理解其特征的独特机会。
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