Reliable uncertainty quantification in deep neural networks is very crucial in safety-critical applications such as automated driving for trustworthy and informed decision-making. Assessing the quality of uncertainty estimates is challenging as ground truth for uncertainty estimates is not available. Ideally, in a well-calibrated model, uncertainty estimates should perfectly correlate with model error. We propose a novel error aligned uncertainty optimization method and introduce a trainable loss function to guide the models to yield good quality uncertainty estimates aligning with the model error. Our approach targets continuous structured prediction and regression tasks, and is evaluated on multiple datasets including a large-scale vehicle motion prediction task involving real-world distributional shifts. We demonstrate that our method improves average displacement error by 1.69% and 4.69%, and the uncertainty correlation with model error by 17.22% and 19.13% as quantified by Pearson correlation coefficient on two state-of-the-art baselines.
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TensorFlow GNN(TF-GNN)是张量曲线的图形神经网络的可扩展库。它是从自下而上设计的,以支持当今信息生态系统中发生的丰富的异质图数据。Google的许多生产模型都使用TF-GNN,最近已作为开源项目发布。在本文中,我们描述了TF-GNN数据模型,其KERAS建模API以及相关功能,例如图形采样,分布式训练和加速器支持。
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有限的作品显示无监督的分布(OOD)方法对复杂的医疗数据的功效。在这里,我们展示了我们无监督的OOD检测算法,SIMCLR-LOF的初步调查结果,以及在医学图像上应用的最近现实方法(SSD)的最新状态。SIMCLR-LOF使用SIMCLR学习语义有意义的功能,如果测试样本是ood的,则使用LOF进行评分。我们在多源国际皮肤成像协作(ISIC)2019数据集上进行了评估,并显示与SSD竞争的结果以及应用于同一数据的最近监督方法。
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质量摘要数据集的创建是一种昂贵,耗时的努力,需要通过训练有素的人类和机器的摘要生产和评估。如果这种努力用一种语言制作,则能够在不重复人类注释的情况下用其他语言使用它是有益的。要调查我们可以信任此类数据集的机器翻译多少,我们将英文数据集汇总到七种语言,并在自动评估措施中比较性能。我们将等同性测试探讨为适当的统计范式,用于评估摘要人类自动评分之间的相关性。虽然我们发现类似于源类似语言的数据集重用潜力,但在横跨翻译中找不到大多数摘要评估方法。
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