之前的信仰是贝叶斯的认知核心核心,但许多这些账户不直接测量前锋。更具体地,信仰的初始状态大量影响在更新特定模型时假设假设新信息的利用方式。尽管如此,先前和后部信仰要么从连续参与者行动推断,或者通过贫困手段引发。我们参与者在理论上不可知的方式发挥游戏“Plinko”的一个版本,首先引发个人参与者前瞻。然后直接测量随后的学习和更新参与者信仰。我们表明,参与者持有各种前锋,这些前锋围绕原型概率分布,反过来影响学习。在后续实验中,我们表明,参与者前锋随着时间的推移稳定,更新信仰的能力受到简单环境操纵的影响(即短暂的休息)。该数据揭示了直接衡量参与者信仰的重要性,而不是假设或推断它们在迄今为止的文献中被广泛完成。 Plinko游戏提供了一种灵活和融合的方法,用于检查统计学习和心理模型更新。
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Real-world robotic grasping can be done robustly if a complete 3D Point Cloud Data (PCD) of an object is available. However, in practice, PCDs are often incomplete when objects are viewed from few and sparse viewpoints before the grasping action, leading to the generation of wrong or inaccurate grasp poses. We propose a novel grasping strategy, named 3DSGrasp, that predicts the missing geometry from the partial PCD to produce reliable grasp poses. Our proposed PCD completion network is a Transformer-based encoder-decoder network with an Offset-Attention layer. Our network is inherently invariant to the object pose and point's permutation, which generates PCDs that are geometrically consistent and completed properly. Experiments on a wide range of partial PCD show that 3DSGrasp outperforms the best state-of-the-art method on PCD completion tasks and largely improves the grasping success rate in real-world scenarios. The code and dataset will be made available upon acceptance.
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The availability of frequent and cost-free satellite images is in growing demand in the research world. Such satellite constellations as Landsat 8 and Sentinel-2 provide a massive amount of valuable data daily. However, the discrepancy in the sensors' characteristics of these satellites makes it senseless to use a segmentation model trained on either dataset and applied to another, which is why domain adaptation techniques have recently become an active research area in remote sensing. In this paper, an experiment of domain adaptation through style-transferring is conducted using the HRSemI2I model to narrow the sensor discrepancy between Landsat 8 and Sentinel-2. This paper's main contribution is analyzing the expediency of that approach by comparing the results of segmentation using domain-adapted images with those without adaptation. The HRSemI2I model, adjusted to work with 6-band imagery, shows significant intersection-over-union performance improvement for both mean and per class metrics. A second contribution is providing different schemes of generalization between two label schemes - NALCMS 2015 and CORINE. The first scheme is standardization through higher-level land cover classes, and the second is through harmonization validation in the field.
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The number of international benchmarking competitions is steadily increasing in various fields of machine learning (ML) research and practice. So far, however, little is known about the common practice as well as bottlenecks faced by the community in tackling the research questions posed. To shed light on the status quo of algorithm development in the specific field of biomedical imaging analysis, we designed an international survey that was issued to all participants of challenges conducted in conjunction with the IEEE ISBI 2021 and MICCAI 2021 conferences (80 competitions in total). The survey covered participants' expertise and working environments, their chosen strategies, as well as algorithm characteristics. A median of 72% challenge participants took part in the survey. According to our results, knowledge exchange was the primary incentive (70%) for participation, while the reception of prize money played only a minor role (16%). While a median of 80 working hours was spent on method development, a large portion of participants stated that they did not have enough time for method development (32%). 25% perceived the infrastructure to be a bottleneck. Overall, 94% of all solutions were deep learning-based. Of these, 84% were based on standard architectures. 43% of the respondents reported that the data samples (e.g., images) were too large to be processed at once. This was most commonly addressed by patch-based training (69%), downsampling (37%), and solving 3D analysis tasks as a series of 2D tasks. K-fold cross-validation on the training set was performed by only 37% of the participants and only 50% of the participants performed ensembling based on multiple identical models (61%) or heterogeneous models (39%). 48% of the respondents applied postprocessing steps.
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Out-of-distribution detection is crucial to the safe deployment of machine learning systems. Currently, the state-of-the-art in unsupervised out-of-distribution detection is dominated by generative-based approaches that make use of estimates of the likelihood or other measurements from a generative model. Reconstruction-based methods offer an alternative approach, in which a measure of reconstruction error is used to determine if a sample is out-of-distribution. However, reconstruction-based approaches are less favoured, as they require careful tuning of the model's information bottleneck - such as the size of the latent dimension - to produce good results. In this work, we exploit the view of denoising diffusion probabilistic models (DDPM) as denoising autoencoders where the bottleneck is controlled externally, by means of the amount of noise applied. We propose to use DDPMs to reconstruct an input that has been noised to a range of noise levels, and use the resulting multi-dimensional reconstruction error to classify out-of-distribution inputs. Our approach outperforms not only reconstruction-based methods, but also state-of-the-art generative-based approaches.
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人类机器人相互作用(HRI)对于在日常生活中广泛使用机器人至关重要。机器人最终将能够通过有效的社会互动来履行人类文明的各种职责。创建直接且易于理解的界面,以与机器人开始在个人工作区中扩散时与机器人互动至关重要。通常,与模拟机器人的交互显示在屏幕上。虚拟现实(VR)是一个更具吸引力的替代方法,它为视觉提示提供了更像现实世界中看到的线索。在这项研究中,我们介绍了Jubileo,这是一种机器人的动画面孔,并使用人类机器人社会互动领域的各种研究和应用开发工具。Jubileo Project不仅提供功能齐全的开源物理机器人。它还提供了一个全面的框架,可以通过VR接口进行操作,从而为HRI应用程序测试带来沉浸式环境,并明显更好地部署速度。
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我们提供了证据表明,学到的密度功能理论(``dft')的力场已准备好进行基态催化剂发现。我们的关键发现是,尽管预测的力与地面真相有很大差异,但使用从超过50 \%的评估系统中使用RPBE功能的能量与使用RPBE功能相似或较低能量的力量的力量与使用RPBE功能相似或较低的力量放松。这具有令人惊讶的含义,即学习的潜力可能已经准备好在挑战性的催化系统中替换DFT,例如在Open Catalyst 2020数据集中发现的电位。此外,我们表明,在局部谐波能量表面上具有与目标DFT能量相同的局部谐波能量表面训练的力场也能够在50 \%的情况下找到较低或相似的能量结构。与在真实能量和力量训练的标准模型相比,这种``简易电位''的收敛步骤更少,这进一步加速了计算。它的成功说明了一个关键:即使模型具有高力误差,学到的电位也可以定位能量最小值。结构优化的主要要求仅仅是学到的电位具有正确的最小值。由于学到的电位与系统大小的速度快速且尺寸为线性,因此我们的结果开辟了快速找到大型系统基础状态的可能性。
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在本文中,创建了具有定制设计的执行器空间弦编码器的增强软机器人原型,以研究动态软机器人轨迹跟踪。软机器人原型嵌入了所提出的自适应被动性控制和有效的动态模型,使具有挑战性的轨迹跟踪任务成为可能。我们通过在不同的操作场景上执行实验验证:各种跟踪速度和外部干扰来探索跟踪准确性以及提出的控制策略的全部潜力。在所有实验场景中,提出的自适应被动控制都优于常规PD反馈线性化控制。实验分析详细介绍了所提出的方法的优势和缺点,并指出了未来软机器人动态控制的下一步。
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量子计算为某些问题提供了指数加速的潜力。但是,许多具有可证明加速的现有算法都需要当前不可用的耐故障量子计算机。我们提出了NISQ-TDA,这是第一个完全实现的量子机学习算法,其在任意经典(非手动)数据上具有可证明的指数加速,并且仅需要线性电路深度。我们报告了我们的NISQ-TDA算法的成功执行,该算法应用于在量子计算设备以及嘈杂的量子模拟器上运行的小数据集。我们从经验上证实,该算法对噪声是可靠的,并提供了目标深度和噪声水平,以实现现实世界中问题的近期,无耐受耐受性的量子优势。我们独特的数据加载投影方法是噪声鲁棒性的主要来源,引入了一种新的自我校正数据加载方法。
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开发有效的自动分类器将真实来源与工件分开,对于宽场光学调查的瞬时随访至关重要。在图像差异过程之后,从减法伪像的瞬态检测鉴定是此类分类器的关键步骤,称为真实 - 博格斯分类问题。我们将自我监督的机器学习模型,深入的自组织地图(DESOM)应用于这个“真实的模拟”分类问题。 DESOM结合了自动编码器和一个自组织图以执行聚类,以根据其维度降低的表示形式来区分真实和虚假的检测。我们使用32x32归一化检测缩略图作为底部的输入。我们展示了不同的模型训练方法,并发现我们的最佳DESOM分类器显示出6.6%的检测率,假阳性率为1.5%。 Desom提供了一种更细微的方法来微调决策边界,以确定与其他类型的分类器(例如在神经网络或决策树上构建的)结合使用时可能进行的实际检测。我们还讨论了DESOM及其局限性的其他潜在用法。
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