Datacenter operators ensure fair and regular server maintenance by using automated processes to schedule maintenance jobs to complete within a strict time budget. Automating this scheduling problem is challenging because maintenance job duration varies based on both job type and hardware. While it is tempting to use prior machine learning techniques for predicting job duration, we find that the structure of the maintenance job scheduling problem creates a unique challenge. In particular, we show that prior machine learning methods that produce the lowest error predictions do not produce the best scheduling outcomes due to asymmetric costs. Specifically, underpredicting maintenance job duration has results in more servers being taken offline and longer server downtime than overpredicting maintenance job duration. The system cost of underprediction is much larger than that of overprediction. We present Acela, a machine learning system for predicting maintenance job duration, which uses quantile regression to bias duration predictions toward overprediction. We integrate Acela into a maintenance job scheduler and evaluate it on datasets from large-scale, production datacenters. Compared to machine learning based predictors from prior work, Acela reduces the number of servers that are taken offline by 1.87-4.28X, and reduces the server offline time by 1.40-2.80X.

Part of Speech (POS) tagging is crucial to Natural Language Processing (NLP). It is a well-studied topic in several resource-rich languages. However, the development of computational linguistic resources is still in its infancy despite the existence of numerous languages that are historically and literary rich. Assamese, an Indian scheduled language, spoken by more than 25 million people, falls under this category. In this paper, we present a Deep Learning (DL)-based POS tagger for Assamese. The development process is divided into two stages. In the first phase, several pre-trained word embeddings are employed to train several tagging models. This allows us to evaluate the performance of the word embeddings in the POS tagging task. The top-performing model from the first phase is employed to annotate another set of new sentences. In the second phase, the model is trained further using the fresh dataset. Finally, we attain a tagging accuracy of 86.52% in F1 score. The model may serve as a baseline for further study on DL-based Assamese POS tagging.

我们介绍ASNER，这是一种使用基线阿萨姆语NER模型的低资源阿萨姆语言的命名实体注释数据集。该数据集包含大约99k代币，其中包括印度总理和阿萨姆人戏剧演讲中的文字。它还包含个人名称，位置名称和地址。拟议的NER数据集可能是基于深神经的阿萨姆语言处理的重要资源。我们通过训练NER模型进行基准测试数据集并使用最先进的体系结构评估被监督的命名实体识别（NER），例如FastText，Bert，XLM-R，Flair，Muril等。我们实施了几种基线方法，标记BI-LSTM-CRF体系结构的序列。当使用Muril用作单词嵌入方法时，所有基线中最高的F1得分的准确性为80.69％。带注释的数据集和最高性能模型公开可用。

自动识别脚本是多语言OCR引擎的重要组成部分。在本文中，我们介绍了基于CNN-LSTM网络的高效，轻量级，实时和设备空间关注，用于场景文本脚本标识，可在资源受限移动设备上部署部署。我们的网络由CNN组成，配备有空间注意模块，有助于减少自然图像中存在的空间扭曲。这允许特征提取器在忽略畸形的同时产生丰富的图像表示，从而提高了该细粒化分类任务的性能。该网络还采用残留卷积块来构建深度网络以专注于脚本的鉴别特征。 CNN通过识别属于特定脚本的每个字符来学习文本特征表示，并且使用LSTM层的序列学习能力捕获文本内的长期空间依赖关系。将空间注意机制与残留卷积块相结合，我们能够增强基线CNN的性能，以构建用于脚本识别的端到端可训练网络。若干标准基准测试的实验结果证明了我们方法的有效性。该网络实现了最先进的方法竞争准确性，并且在网络尺寸方面优越，总共仅为110万个参数，推理时间为2.7毫秒。

在本文中，我们介绍了一种基于距离场的新方法，以确保物理知识的深神经网络中的边界条件。众所周知，满足网状紫外线和颗粒方法中的Dirichlet边界条件的挑战是众所周知的。该问题在物理信息的开发中也是相关的，用于解决部分微分方程的解。我们在人工神经网络中介绍几何意识的试验功能，以改善偏微分方程的深度学习培训。为此，我们使用来自建设性的实体几何（R函数）和广义的等级坐标（平均值潜在字段）的概念来构建$ \ phi $，对域边界的近似距离函数。要恰好施加均匀的Dirichlet边界条件，试验函数乘以\ PHI $乘以PINN近似，并且通过Transfinite插值的泛化用于先验满足的不均匀Dirichlet（必要），Neumann（自然）和Robin边界复杂几何形状的条件。在这样做时，我们消除了与搭配方法中的边界条件满意相关的建模误差，并确保以ritz方法点点到运动可视性。我们在具有仿射和弯曲边界的域上的线性和非线性边值问题的数值解。 1D中的基准问题，用于线性弹性，平面扩散和光束弯曲;考虑了泊松方程的2D，考虑了双音态方程和非线性欧克隆方程。该方法延伸到更高的尺寸，并通过在4D超立方套上解决彼此与均匀的Dirichlet边界条件求泊松问题来展示其使用。该研究提供了用于网眼分析的途径，以在没有域离散化的情况下在确切的几何图形上进行。