如今,混合云平台作为打算实施私人和公共云应用组合的组织的有吸引力的解决方案,以满足其盈利能力。但是,这只能通过在加速执行过程时利用可用资源来实现。因此,部署新应用程序需要将其中一些流程致力于私有云解决方案,同时将其他过程分配给公共云。在此上下文中,设置本工作以帮助最小化相关成本,并在最小的执行时间内为最佳服务放置解决方案提供有效的选择。已经应用了几种进化算法来解决服务放置问题,并且在处理复杂的解决方案空间以提供最佳放置并经常产生短的执行时间。除了在处理服务放置问题方面发明细缺乏鲁棒性之外,还发现标准BPSO算法显示出显着的缺点,即容易捕获到本地Optima之外。因此,为了克服与标准BPSO相关的关键缺点,提出了增强的二进制粒子群优化(E-BPSO)算法,由粒子位置更新方程的修改组成,最初从连续PSO激发。我们所提出的E-BPSO算法显示在成本和执行时间方面以实际基准测试优越最先进的方法。
translated by 谷歌翻译
In recent years, social media has been widely explored as a potential source of communication and information in disasters and emergency situations. Several interesting works and case studies of disaster analytics exploring different aspects of natural disasters have been already conducted. Along with the great potential, disaster analytics comes with several challenges mainly due to the nature of social media content. In this paper, we explore one such challenge and propose a text classification framework to deal with Twitter noisy data. More specifically, we employed several transformers both individually and in combination, so as to differentiate between relevant and non-relevant Twitter posts, achieving the highest F1-score of 0.87.
translated by 谷歌翻译
Key Point Analysis(KPA) is a relatively new task in NLP that combines summarization and classification by extracting argumentative key points (KPs) for a topic from a collection of texts and categorizing their closeness to the different arguments. In our work, we focus on the legal domain and develop methods that identify and extract KPs from premises derived from texts of judgments. The first method is an adaptation to an existing state-of-the-art method, and the two others are new methods that we developed from scratch. We present our methods and examples of their outputs, as well a comparison between them. The full evaluation of our results is done in the matching task -- match between the generated KPs to arguments (premises).
translated by 谷歌翻译
With the growth of residential rooftop PV adoption in recent decades, the problem of 1 effective layout design has become increasingly important in recent years. Although a number 2 of automated methods have been introduced, these tend to rely on simplifying assumptions and 3 heuristics to improve computational tractability. We demonstrate a fully automated layout design 4 pipeline that attempts to solve a more general formulation with greater geometric flexibility that 5 accounts for shading losses. Our approach generates rooftop areas from satellite imagery and uses 6 MINLP optimization to select panel positions, azimuth angles and tilt angles on an individual basis 7 rather than imposing any predefined layouts. Our results demonstrate that although several common 8 heuristics are often effective, they may not be universally suitable due to complications resulting 9 from geometric restrictions and shading losses. Finally, we evaluate a few specific heuristics from the 10 literature and propose a potential new rule of thumb that may help improve rooftop solar energy 11 potential when shading effects are considered.
translated by 谷歌翻译
Large language models (LLMs) have been shown to be able to perform new tasks based on a few demonstrations or natural language instructions. While these capabilities have led to widespread adoption, most LLMs are developed by resource-rich organizations and are frequently kept from the public. As a step towards democratizing this powerful technology, we present BLOOM, a 176B-parameter open-access language model designed and built thanks to a collaboration of hundreds of researchers. BLOOM is a decoder-only Transformer language model that was trained on the ROOTS corpus, a dataset comprising hundreds of sources in 46 natural and 13 programming languages (59 in total). We find that BLOOM achieves competitive performance on a wide variety of benchmarks, with stronger results after undergoing multitask prompted finetuning. To facilitate future research and applications using LLMs, we publicly release our models and code under the Responsible AI License.
translated by 谷歌翻译
19009年的大流行急剧催化了电子购物者的扩散。电子购物的急剧增长无疑会对旅行需求产生重大影响。结果,运输建模者对电子购物需求建模的能力变得越来越重要。这项研究开发了预测家庭每周送货频率的模型。我们使用经典计量经济学和机器学习技术来获得最佳模型。发现社会经济因素,例如拥有在线杂货会员资格,家庭成员的平均年龄,男性家庭成员的百分比,家庭中的工人数量以及各种土地使用因素会影响房屋送货的需求。这项研究还比较了机器学习模型和经典计量经济学模型的解释和表现。在通过机器学习和计量经济学模型确定的变量效果中找到了一致性。但是,具有相似的召回精度,有序的概率模型是一个经典的计量经济学模型,可以准确预测家庭交付需求的总分布。相反,两个机器学习模型都无法匹配观察到的分布。
translated by 谷歌翻译
当今智能城市中产生的大型视频数据从其有目的的用法角度引起了人们的关注,其中监视摄像机等是最突出的资源,是为大量数据做出贡献的最突出的资源,使其自动化分析成为计算方面的艰巨任务。和精确。暴力检测(VD)在行动和活动识别域中广泛崩溃,用于分析大型视频数据,以了解由于人类而引起的异常动作。传统上,VD文献基于手动设计的功能,尽管开发了基于深度学习的独立模型的进步用于实时VD分析。本文重点介绍了深度序列学习方法以及检测到的暴力的本地化策略。该概述还介入了基于机器学习的初始图像处理和基于机器学习的文献及其可能具有的优势,例如针对当前复杂模型的效率。此外,讨论了数据集,以提供当前模型的分析,并用对先前方法的深入分析得出的VD域中的未来方向解释了他们的利弊。
translated by 谷歌翻译
多模式信息在医疗任务中经常可用。通过结合来自多个来源的信息,临床医生可以做出更准确的判断。近年来,在临床实践中使用了多种成像技术进行视网膜分析:2D眼底照片,3D光学相干断层扫描(OCT)和3D OCT血管造影等。我们的论文研究了基于深度学习的三种多模式信息融合策略,以求解视网膜视网膜分析任务:早期融合,中间融合和分层融合。常用的早期和中间融合很简单,但不能完全利用模式之间的互补信息。我们开发了一种分层融合方法,该方法着重于将网络多个维度的特征组合在一起,并探索模式之间的相关性。这些方法分别用于使用公共伽马数据集(Felcus Photophs和OCT)以及Plexelite 9000(Carl Zeis Meditec Inc.)的私人数据集,将这些方法应用于青光眼和糖尿病性视网膜病变分类。我们的分层融合方法在病例中表现最好,并为更好的临床诊断铺平了道路。
translated by 谷歌翻译
纵向成像能够捕获静态解剖结构和疾病进展的动态变化,向早期和更好的患者特异性病理学管理。但是,检测糖尿病性视网膜病(DR)的常规方法很少利用纵向信息来改善DR分析。在这项工作中,我们调查了利用纵向诊断目的的纵向性质利用自我监督学习的好处。我们比较了不同的纵向自学学习(LSSL)方法,以模拟从纵向视网膜颜色眼底照片(CFP)进行疾病进展,以便使用一对连续考试来检测早期的DR严重性变化。实验是在有或没有那些经过训练的编码器(LSSL)的纵向DR筛选数据集上进行的,该数据集充当纵向借口任务。结果对于基线(从头开始训练)的AUC为0.875,AUC为0.96(95%CI:0.9593-0.9655 DELONG测试),使用p值<2.2e-16,在早期融合上使用简单的重置式结构,使用冷冻的LSSL重量,这表明LSSL潜在空间可以编码DR进程的动态。
translated by 谷歌翻译
我们介绍RealityTalk,该系统通过语音驱动的互动虚拟元素来增强实时实时演示。增强演示文稿利用嵌入式视觉效果和动画来吸引和表现力。但是,现有的实时演示工具通常缺乏互动性和即兴创作,同时在视频编辑工具中产生这种效果需要大量的时间和专业知识。RealityTalk使用户能够通过实时语音驱动的交互创建实时增强演示文稿。用户可以通过实时语音和支持方式进行交互提示,移动和操纵图形元素。根据我们对177个现有视频编辑的增强演示文稿的分析,我们提出了一套新颖的互动技术,然后将它们纳入真人秀。我们从主持人的角度评估我们的工具,以证明系统的有效性。
translated by 谷歌翻译