Convincing people to get vaccinated against COVID-19 is a key societal challenge in the present times. As a first step towards this goal, many prior works have relied on social media analysis to understand the specific concerns that people have towards these vaccines, such as potential side-effects, ineffectiveness, political factors, and so on. Though there are datasets that broadly classify social media posts into Anti-vax and Pro-Vax labels, there is no dataset (to our knowledge) that labels social media posts according to the specific anti-vaccine concerns mentioned in the posts. In this paper, we have curated CAVES, the first large-scale dataset containing about 10k COVID-19 anti-vaccine tweets labelled into various specific anti-vaccine concerns in a multi-label setting. This is also the first multi-label classification dataset that provides explanations for each of the labels. Additionally, the dataset also provides class-wise summaries of all the tweets. We also perform preliminary experiments on the dataset and show that this is a very challenging dataset for multi-label explainable classification and tweet summarization, as is evident by the moderate scores achieved by some state-of-the-art models. Our dataset and codes are available at: https://github.com/sohampoddar26/caves-data
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本文调查了具有不平等专业知识的组织之间竞争的动态。多智能体增强学习已被用来模拟和理解各种激励方案的影响,旨在抵消这种不等式。我们设计触摸标记,基于众所周知的多助手粒子环境的游戏,其中两支球队(弱,强),不平等但不断变化的技能水平相互竞争。对于培训此类游戏,我们提出了一种新颖的控制器辅助多智能体增强学习算法\我们的\,它使每个代理商携带策略的集合以及通过选择性地分区示例空间,触发智能角色划分队友。使用C-MADDPG作为潜在的框架,我们向弱小的团队提出了激励计划,使两队的最终奖励成为同一个。我们发现尽管激动人心,但弱小队的最终奖励仍然缺乏强大的团​​队。在检查中,我们意识到弱小球队的整体激励计划并未激励该团队中的较弱代理来学习和改进。要抵消这一点,我们现在特别激励了较弱的球员学习,因此,观察到超越初始阶段的弱小球队与更强大的团队表现。本文的最终目标是制定一种动态激励计划,不断平衡两支球队的奖励。这是通过设计富有奖励的激励计划来实现的,该计划从环境中取出最低信息。
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In molecular research, simulation \& design of molecules are key areas with significant implications for drug development, material science, and other fields. Current classical computational power falls inadequate to simulate any more than small molecules, let alone protein chains on hundreds of peptide. Therefore these experiment are done physically in wet-lab, but it takes a lot of time \& not possible to examine every molecule due to the size of the search area, tens of billions of dollars are spent every year in these research experiments. Molecule simulation \& design has lately advanced significantly by machine learning models, A fresh perspective on the issue of chemical synthesis is provided by deep generative models for graph-structured data. By optimising differentiable models that produce molecular graphs directly, it is feasible to avoid costly search techniques in the discrete and huge space of chemical structures. But these models also suffer from computational limitations when dimensions become huge and consume huge amount of resources. Quantum Generative machine learning in recent years have shown some empirical results promising significant advantages over classical counterparts.
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Reliable forecasting of traffic flow requires efficient modeling of traffic data. Different correlations and influences arise in a dynamic traffic network, making modeling a complicated task. Existing literature has proposed many different methods to capture the complex underlying spatial-temporal relations of traffic networks. However, methods still struggle to capture different local and global dependencies of long-range nature. Also, as more and more sophisticated methods are being proposed, models are increasingly becoming memory-heavy and, thus, unsuitable for low-powered devices. In this paper, we focus on solving these problems by proposing a novel deep learning framework - STLGRU. Specifically, our proposed STLGRU can effectively capture both local and global spatial-temporal relations of a traffic network using memory-augmented attention and gating mechanism. Instead of employing separate temporal and spatial components, we show that our memory module and gated unit can learn the spatial-temporal dependencies successfully, allowing for reduced memory usage with fewer parameters. We extensively experiment on several real-world traffic prediction datasets to show that our model performs better than existing methods while the memory footprint remains lower. Code is available at \url{https://github.com/Kishor-Bhaumik/STLGRU}.
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We introduce 3inGAN, an unconditional 3D generative model trained from 2D images of a single self-similar 3D scene. Such a model can be used to produce 3D "remixes" of a given scene, by mapping spatial latent codes into a 3D volumetric representation, which can subsequently be rendered from arbitrary views using physically based volume rendering. By construction, the generated scenes remain view-consistent across arbitrary camera configurations, without any flickering or spatio-temporal artifacts. During training, we employ a combination of 2D, obtained through differentiable volume tracing, and 3D Generative Adversarial Network (GAN) losses, across multiple scales, enforcing realism on both its 3D structure and the 2D renderings. We show results on semi-stochastic scenes of varying scale and complexity, obtained from real and synthetic sources. We demonstrate, for the first time, the feasibility of learning plausible view-consistent 3D scene variations from a single exemplar scene and provide qualitative and quantitative comparisons against recent related methods.
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The cover is the face of a book and is a point of attraction for the readers. Designing book covers is an essential task in the publishing industry. One of the main challenges in creating a book cover is representing the theme of the book's content in a single image. In this research, we explore ways to produce a book cover using artificial intelligence based on the fact that there exists a relationship between the summary of the book and its cover. Our key motivation is the application of text-to-image synthesis methods to generate images from given text or captions. We explore several existing text-to-image conversion techniques for this purpose and propose an approach to exploit these frameworks for producing book covers from provided summaries. We construct a dataset of English books that contains a large number of samples of summaries of existing books and their cover images. In this paper, we describe our approach to collecting, organizing, and pre-processing the dataset to use it for training models. We apply different text-to-image synthesis techniques to generate book covers from the summary and exhibit the results in this paper.
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因果和归因研究对于地球科学发现至关重要,对于为气候,生态和水政策提供信息至关重要。但是,当前的方法需要与科学和利益相关者挑战的复杂性以及数据可用性以及数据驱动方法的充分性相结合。除非通过物理学进行仔细的通知,否则它们会冒着将相关性与因果关系相关或因估计不准确而淹没的风险。鉴于自然实验,对照试验,干预措施和反事实检查通常是不切实际的,因此已经开发了信息理论方法,并在地球科学中不断完善。在这里,我们表明,基于转移熵的因果图最近在具有备受瞩目的发现的地球科学中变得流行,即使增强具有统计学意义,也可能是虚假的。我们开发了一种基于子样本的合奏方法,用于鲁棒性因果分析。模拟数据以及气候和生态水文中的观察表明,这种方法的鲁棒性和一致性。
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动画字符上的现实动态服装具有许多AR/VR应用程序。在创作这种动态服装几何形状仍然是一项具有挑战性的任务时,数据驱动的模拟提供了一个有吸引力的替代方案,尤其是如果可以简单地使用基础字符的运动来控制它。在这项工作中,我们专注于动态3D服装,尤其是对于松散的服装。在数据驱动的设置中,我们首先学习了合理服装几何形状的生成空间。然后,我们学会了对该空间的映射,以捕获运动依赖的动态变形,该变形在服装的先前状态以及相对于基础体的相对位置为条件。从技术上讲,我们通过在服装的规范状态下预测富含框架依赖的皮肤重量的服装状态下的人均局部位移来对服装动力学进行建模,从而将服装带入全球空间。我们通过预测剩余的局部位移来解决所有剩余的人均碰撞。所得的服装几何形状被用作历史记录,以实现迭代推出预测。我们证明了对看不见的身体形状和运动输入的合理概括,并在多个最新的替代方案中显示出改进。
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变异推理(VI)的核心原理是将计算复杂后概率密度计算的统计推断问题转换为可拖动的优化问题。该属性使VI比几种基于采样的技术更快。但是,传统的VI算法无法扩展到大型数据集,并且无法轻易推断出越野数据点,而无需重新运行优化过程。该领域的最新发展,例如随机,黑框和摊销VI,已帮助解决了这些问题。如今,生成的建模任务广泛利用摊销VI来实现其效率和可扩展性,因为它利用参数化函数来学习近似的后验密度参数。在本文中,我们回顾了各种VI技术的数学基础,以构成理解摊销VI的基础。此外,我们还概述了最近解决摊销VI问题的趋势,例如摊销差距,泛化问题,不一致的表示学习和后验崩溃。最后,我们分析了改善VI优化的替代差异度量。
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临时团队合作的进步有可能创建在现实世界应用程序中合作的代理商。但是,部署在现实世界中的代理人容易受到颠覆它们的意图的对手。在临时团队工作中,几乎没有研究对手的存在。我们解释了扩展临时团队工作以包括对手的存在的重要性,并澄清了为什么这个问题很困难。然后,我们提出了一些在临时团队合作中的新研究机会的指示,这会导致更强大的多代理网络物理基础设施系统。
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