Distributed deep learning (DDL) systems strongly depend on network performance. Current electronic packet switched (EPS) network architectures and technologies suffer from variable diameter topologies, low-bisection bandwidth and over-subscription affecting completion time of communication and collective operations. We introduce a near-exascale, full-bisection bandwidth, all-to-all, single-hop, all-optical network architecture with nanosecond reconfiguration called RAMP, which supports large-scale distributed and parallel computing systems (12.8~Tbps per node for up to 65,536 nodes). For the first time, a custom RAMP-x MPI strategy and a network transcoder is proposed to run MPI collective operations across the optical circuit switched (OCS) network in a schedule-less and contention-less manner. RAMP achieves 7.6-171$\times$ speed-up in completion time across all MPI operations compared to realistic EPS and OCS counterparts. It can also deliver a 1.3-16$\times$ and 7.8-58$\times$ reduction in Megatron and DLRM training time respectively} while offering 42-53$\times$ and 3.3-12.4$\times$ improvement in energy consumption and cost respectively.
translated by 谷歌翻译
语言模型既展示了定量的改进,又展示了新的定性功能,随着规模的增加。尽管它们具有潜在的变革性影响,但这些新能力的特征却很差。为了为未来的研究提供信息,为破坏性的新模型能力做准备,并改善社会有害的效果,至关重要的是,我们必须了解目前和近乎未来的能力和语言模型的局限性。为了应对这一挑战,我们介绍了超越模仿游戏基准(Big Bench)。 Big Bench目前由204个任务组成,由132家机构的442位作者贡献。任务主题是多样的,从语言学,儿童发展,数学,常识性推理,生物学,物理学,社会偏见,软件开发等等。 Big-Bench专注于被认为超出当前语言模型的功能的任务。我们评估了OpenAI的GPT型号,Google内部密集变压器体系结构和大型基础上的开关稀疏变压器的行为,跨越了数百万到数十亿个参数。此外,一个人类专家评估者团队执行了所有任务,以提供强大的基准。研究结果包括:模型性能和校准都随规模改善,但绝对的术语(以及与评估者的性能相比);在模型类中的性能非常相似,尽管带有稀疏性。逐渐和预测的任务通常涉及大量知识或记忆成分,而在临界规模上表现出“突破性”行为的任务通常涉及多个步骤或组成部分或脆性指标;社交偏见通常会随着含糊不清的环境而随着规模而增加,但这可以通过提示来改善。
translated by 谷歌翻译
匹配问题的图表寻求在两个图形的节点之间找到对齐,这最小化了邻接分歧的数量。解决图表匹配越来越重要,因为它在运营研究,计算机视觉,神经科学等中的应用程序。然而,当前最先进的算法效率低,匹配非常大的图形,尽管它们产生了良好的准确性。这些算法的主要计算瓶颈是线性分配问题,必须在每次迭代时解决。在本文中,我们利用最近的最佳运输领域的进步来取代接受的线性分配算法的使用。我们呈现山羊,对最先进的图形匹配近似算法“常见问题”(Vogelstein,2015)的修改,用CuSuri(2013)的“光速最优传输”方法替换其线性和分配步骤。该修改提供了对速度和经验匹配精度的改进。在模拟和实际数据示例中匹配图表中对该方法的有效性进行了说明。
translated by 谷歌翻译
当前的量子点(QD)设备的自动传动方法在显示出一些成功的同时,缺乏对数据可靠性的评估。当自主系统处理嘈杂或低质量数据时,这会导致意外的失败。在这项工作中,我们为QD设备的强大自动调整提供了一个框架,该QD设备将机器学习(ML)状态分类器与数据质量控制模块结合在一起。数据质量控制模块充当“守门人”系统,确保只有国家分类器处理可靠的数据。较低的数据质量会导致设备重新校准或终止。为了训练两个ML系统,我们通过结合QD实验的典型合成噪声来增强QD仿真。我们确认,在状态分类器的训练中包含合成噪声可以显着提高性能,在测试实验数据时,准确性为95.0(9)%。然后,我们通过表明状态分类器的性能随着预期的数据质量而恶化,从而验证数据质量控制模块的功能。我们的结果为嘈杂的QD设备的自动调整建立了强大而灵活的ML框架。
translated by 谷歌翻译
跟踪是大型强子撞机(LHC)的事件重建最耗时的方面之一及其高亮度升级(HL-LHC)。通过在模式识别和参数估计中包括时序,创新的探测器技术将跟踪到四维。然而,现在和未来的硬件已经具有通过现有的轨道播种算法主要未使用的附加信息。簇的形状为轨道播种提供了额外的尺寸,这可以显着降低轨道发现的组合挑战。我们使用神经网络来表明群集形状可以显着降低假组合背景的速度,同时保持高效率。我们使用集群单曲,双峰和三胞胎中的信息来展示这一点。来自TrackML挑战的仿真呈现了数值结果。
translated by 谷歌翻译
决策森林(森林),尤其是随机森林和梯度促进树木,与许多监督学习场景中的其他方法相比,已经证明了最先进的准确性。尤其是,森林在表格数据中占主导地位,即当特征空间非结构化时,因此信号是特征指数置换的不变性。然而,在存在于多种多样(例如图像,文本和语音)深网(网络)(特别是卷积深网(Convnets))上的结构化数据中,倾向于优于森林。我们猜想至少部分原因是网络的输入不仅仅是特征幅度,也是其索引。相反,天真的森林实施未能明确考虑特征指数。最近提出的森林方法表明,对于每个节点,森林从某些特定分布中隐式采样一个随机矩阵。这些森林像某些类别的网络一样,通过将特征空间划分为对应于线性函数的凸多物体来学习。我们以这种方法为基础,并表明人们可以以多种感知方式选择分布来纳入特征区域。我们在数据上活在三个不同的流形上的数据上证明了经验性能:圆环,图像和时间序列。此外,我们证明了其在多元模拟环境中的强度,并且在预测癫痫患者的手术结果方面也表现出了优越性,并从非运动脑区域的原始立体定向EEG数据中预测运动方向。在所有模拟和真实数据中,歧管随机森林(MORF)算法的表现优于忽略特征空间结构并挑战Convnets的性能。此外,MORF运行迅速,并保持解释性和理论上的理由。
translated by 谷歌翻译
The recent increase in public and academic interest in preserving biodiversity has led to the growth of the field of conservation technology. This field involves designing and constructing tools that utilize technology to aid in the conservation of wildlife. In this article, we will use case studies to demonstrate the importance of designing conservation tools with human-wildlife interaction in mind and provide a framework for creating successful tools. These case studies include a range of complexities, from simple cat collars to machine learning and game theory methodologies. Our goal is to introduce and inform current and future researchers in the field of conservation technology and provide references for educating the next generation of conservation technologists. Conservation technology not only has the potential to benefit biodiversity but also has broader impacts on fields such as sustainability and environmental protection. By using innovative technologies to address conservation challenges, we can find more effective and efficient solutions to protect and preserve our planet's resources.
translated by 谷歌翻译
We address the problem of extracting key steps from unlabeled procedural videos, motivated by the potential of Augmented Reality (AR) headsets to revolutionize job training and performance. We decompose the problem into two steps: representation learning and key steps extraction. We employ self-supervised representation learning via a training strategy that adapts off-the-shelf video features using a temporal module. Training implements self-supervised learning losses involving multiple cues such as appearance, motion and pose trajectories extracted from videos to learn generalizable representations. Our method extracts key steps via a tunable algorithm that clusters the representations extracted from procedural videos. We quantitatively evaluate our approach with key step localization and also demonstrate the effectiveness of the extracted representations on related downstream tasks like phase classification. Qualitative results demonstrate that the extracted key steps are meaningful to succinctly represent the procedural tasks.
translated by 谷歌翻译
We introduce Argoverse 2 (AV2) - a collection of three datasets for perception and forecasting research in the self-driving domain. The annotated Sensor Dataset contains 1,000 sequences of multimodal data, encompassing high-resolution imagery from seven ring cameras, and two stereo cameras in addition to lidar point clouds, and 6-DOF map-aligned pose. Sequences contain 3D cuboid annotations for 26 object categories, all of which are sufficiently-sampled to support training and evaluation of 3D perception models. The Lidar Dataset contains 20,000 sequences of unlabeled lidar point clouds and map-aligned pose. This dataset is the largest ever collection of lidar sensor data and supports self-supervised learning and the emerging task of point cloud forecasting. Finally, the Motion Forecasting Dataset contains 250,000 scenarios mined for interesting and challenging interactions between the autonomous vehicle and other actors in each local scene. Models are tasked with the prediction of future motion for "scored actors" in each scenario and are provided with track histories that capture object location, heading, velocity, and category. In all three datasets, each scenario contains its own HD Map with 3D lane and crosswalk geometry - sourced from data captured in six distinct cities. We believe these datasets will support new and existing machine learning research problems in ways that existing datasets do not. All datasets are released under the CC BY-NC-SA 4.0 license.
translated by 谷歌翻译
In training neural networks, batch normalization has many benefits, not all of them entirely understood. But it also has some drawbacks. Foremost is arguably memory consumption, as computing the batch statistics requires all instances within the batch to be processed simultaneously, whereas without batch normalization it would be possible to process them one by one while accumulating the weight gradients. Another drawback is that that distribution parameters (mean and standard deviation) are unlike all other model parameters in that they are not trained using gradient descent but require special treatment, complicating implementation. In this paper, I show a simple and straightforward way to address these issues. The idea, in short, is to add terms to the loss that, for each activation, cause the minimization of the negative log likelihood of a Gaussian distribution that is used to normalize the activation. Among other benefits, this will hopefully contribute to the democratization of AI research by means of lowering the hardware requirements for training larger models.
translated by 谷歌翻译