提出了一种生成软糖手指的新方法。描述了一个中型的假指纹数据库,并在其上评估了两个不同的指纹验证系统。实验中考虑了三种不同的情况,即:使用真实的指纹注册和测试,用假指纹进行注册和测试,以及带有真实指纹的注册,并用假指纹进行测试。给出了光学和热扫描传感器的结果。两种系统都被证明容易受到直接攻击。
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Flooding is one of the most disastrous natural hazards, responsible for substantial economic losses. A predictive model for flood-induced financial damages is useful for many applications such as climate change adaptation planning and insurance underwriting. This research assesses the predictive capability of regressors constructed on the National Flood Insurance Program (NFIP) dataset using neural networks (Conditional Generative Adversarial Networks), decision trees (Extreme Gradient Boosting), and kernel-based regressors (Gaussian Process). The assessment highlights the most informative predictors for regression. The distribution for claims amount inference is modeled with a Burr distribution permitting the introduction of a bias correction scheme and increasing the regressor's predictive capability. Aiming to study the interaction with physical variables, we incorporate Daymet rainfall estimation to NFIP as an additional predictor. A study on the coastal counties in the eight US South-West states resulted in an $R^2=0.807$. Further analysis of 11 counties with a significant number of claims in the NFIP dataset reveals that Extreme Gradient Boosting provides the best results, that bias correction significantly improves the similarity with the reference distribution, and that the rainfall predictor strengthens the regressor performance.
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We study the performance of monolingual and multilingual language models on the task of question-answering (QA) on three diverse languages: English, Finnish and Japanese. We develop models for the tasks of (1) determining if a question is answerable given the context and (2) identifying the answer texts within the context using IOB tagging. Furthermore, we attempt to evaluate the effectiveness of a pre-trained multilingual encoder (Multilingual BERT) on cross-language zero-shot learning for both the answerability and IOB sequence classifiers.
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Large Language Models are affected by the phenomena of memorizing and forgetting their training data. But how do these vary by model size? We work towards this question by investigating how the model size affects the model's ability to discriminate a word's meaning in a given context. We introduce a dataset called DeltaWords, which evaluates a model's ability to follow instructions to select a sentence which replaces the target word with its antonym. We show a weak inverse scaling trend, where task accuracy degrades as model size increase, under extremely few-shot prompting regimes. We show that increasing the number of examples tend to disproportionately benefit larger models than smaller models.
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We report on experiments for the fingerprint modality conducted during the First BioSecure Residential Workshop. Two reference systems for fingerprint verification have been tested together with two additional non-reference systems. These systems follow different approaches of fingerprint processing and are discussed in detail. Fusion experiments I volving different combinations of the available systems are presented. The experimental results show that the best recognition strategy involves both minutiae-based and correlation-based measurements. Regarding the fusion experiments, the best relative improvement is obtained when fusing systems that are based on heterogeneous strategies for feature extraction and/or matching. The best combinations of two/three/four systems always include the best individual systems whereas the best verification performance is obtained when combining all the available systems.
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极化成像已应用于越来越多的机器人视觉应用中(例如,水下导航,眩光去除,脱落,对象分类和深度估计)。可以在市场RGB极化摄像机上找到可以在单个快照中捕获颜色和偏振状态的摄像头。由于传感器的特性分散和镜头的使用,至关重要的是校准这些类型的相机以获得正确的极化测量。到目前为止开发的校准方法要么不适合这种类型的相机,要么需要在严格的设置中进行复杂的设备和耗时的实验。在本文中,我们提出了一种新方法来克服对复杂的光学系统有效校准这些相机的需求。我们表明,所提出的校准方法具有多个优点,例如任何用户都可以使用统一的线性极化光源轻松校准相机,而无需任何先验地了解其偏振状态,并且收购数量有限。我们将公开提供校准代码。
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在本文中,我们的目标是在测试时调整预训练的卷积神经网络对域的变化。我们在没有标签的情况下,不断地使用传入的测试批次流。现有文献主要是基于通过测试图像的对抗扰动获得的人工偏移。在此激励的情况下,我们在域转移的两个现实和挑战的来源(即背景和语义转移)上评估了艺术的状态。上下文移动与环境类型相对应,例如,在室内上下文上预先训练的模型必须适应Core-50上的户外上下文[7]。语义转移对应于捕获类型,例如,在自然图像上预先训练的模型必须适应域网上的剪贴画,草图和绘画[10]。我们在分析中包括了最近的技术,例如预测时间批归一化(BN)[8],测试熵最小化(帐篷)[16]和持续的测试时间适应(CottA)[17]。我们的发现是三个方面的:i)测试时间适应方法的表现更好,并且与语义转移相比,在上下文转移方面忘记了更少的忘记,ii)帐篷在短期适应方面的表现优于其他方法,而Cotta则超过了其他关于长期适应的方法, iii)bn是最可靠和强大的。
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在本文中,我们介绍了e-genia3代理商的扩展,以为移情剂的发展提供支持。新扩展程序修改了代理商的推理过程,以根据分析事件以及代理商的情感状态和个性选择计划。此外,我们的建议允许软件代理通过两个不同的事件评估过程模拟自我和其他代理之间的区别:移情评估过程,以使情绪作为对其他代理情绪的反应以及其他非情感评估过程的反应,并为其他非情感评估过程 - 同情情感事件。移情调节过程适应了基于人际因素(例如,代理人的人格和情感记忆)和代理人的人际特征(例如,代理人之间的情感联系),适应引起的同理心情绪。使用过去事件的记忆及其相应的引起的情绪,可以保持情感联系,以支持代理之间的长期移情互动。
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比较不同的汽车框架是具有挑战性的,并且经常做错了。我们引入了一个开放且可扩展的基准测试,该基准遵循最佳实践,并在比较自动框架时避免常见错误。我们对71个分类和33项回归任务进行了9个著名的自动框架进行了详尽的比较。通过多面分析,评估模型的准确性,与推理时间的权衡以及框架失败,探索了自动框架之间的差异。我们还使用Bradley-terry树来发现相对自动框架排名不同的任务子集。基准配备了一个开源工具,该工具与许多自动框架集成并自动化经验评估过程端到端:从框架安装和资源分配到深入评估。基准测试使用公共数据集,可以轻松地使用其他Automl框架和任务扩展,并且具有最新结果的网站。
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机器学习(ML)研究通常集中在模型上,而最突出的数据集已用于日常的ML任务,而不考虑这些数据集对基本问题的广度,困难和忠诚。忽略数据集的基本重要性已引起了重大问题,该问题涉及现实世界中的数据级联以及数据集驱动标准的模型质量饱和,并阻碍了研究的增长。为了解决此问题,我们提出Dataperf,这是用于评估ML数据集和数据集工作算法的基准软件包。我们打算启用“数据棘轮”,其中培训集将有助于评估相同问题的测试集,反之亦然。这种反馈驱动的策略将产生一个良性的循环,该循环将加速以数据为中心的AI。MLCommons协会将维护Dataperf。
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