Developments in autonomous vehicles (AVs) are rapidly advancing and will in the next 20 years become a central part to our society. However, especially in the early stages of deployment, there is expected to be incidents involving AVs. In the event of AV incidents, decisions will need to be made that require ethical decisions, e.g., deciding between colliding into a group of pedestrians or a rigid barrier. For an AV to undertake such ethical decision making and path planning, simulation models of the situation will be required that are used in real-time on-board the AV. These models will enable path planning and ethical decision making to be undertaken based on predetermined collision injury severity levels. In this research, models are developed for the path planning and ethical decision making that predetermine knowledge regarding the possible collision injury severities, i.e., peak deformation of the AV colliding into the rigid barrier or the impact velocity of the AV colliding into a pedestrian. Based on such knowledge and using fuzzy logic, a novel nonlinear weighted utility cost function for the collision injury severity levels is developed. This allows the model-based predicted collision outcomes arising from AV peak deformation and AV-pedestrian impact velocity to be examined separately via weighted utility cost functions with a common structure. The general form of the weighted utility cost function exploits a fuzzy sets approach, thus allowing common utility costs from the two separate utility cost functions to be meaningfully compared. A decision-making algorithm, which makes use of a utilitarian ethical approach, ensures that the AV will always steer onto the path which represents the lowest injury severity level, hence utility cost to society.

There has been great recent advancement in human-computer chat. However, proper evaluation currently requires human judgements that produce notoriously high-variance metrics due to their inherent subjectivity. Furthermore, there is little standardization in the methods and labels used for evaluation, with an overall lack of work to compare and assess the validity of various evaluation approaches. As a consequence, existing evaluation results likely leave an incomplete picture of the strengths and weaknesses of open-domain chatbots. We aim towards a dimensional evaluation of human-computer chat that can reliably measure several distinct aspects of chat quality. To this end, we present our novel human evaluation method that quantifies the rate of several quality-related chatbot behaviors. Our results demonstrate our method to be more suitable for dimensional chat evaluation than alternative likert-style or comparative methods. We then use our validated method and existing methods to evaluate four open-domain chat models from the recent literature.

As Artificial and Robotic Systems are increasingly deployed and relied upon for real-world applications, it is important that they exhibit the ability to continually learn and adapt in dynamically-changing environments, becoming Lifelong Learning Machines. Continual/lifelong learning (LL) involves minimizing catastrophic forgetting of old tasks while maximizing a model's capability to learn new tasks. This paper addresses the challenging lifelong reinforcement learning (L2RL) setting. Pushing the state-of-the-art forward in L2RL and making L2RL useful for practical applications requires more than developing individual L2RL algorithms; it requires making progress at the systems-level, especially research into the non-trivial problem of how to integrate multiple L2RL algorithms into a common framework. In this paper, we introduce the Lifelong Reinforcement Learning Components Framework (L2RLCF), which standardizes L2RL systems and assimilates different continual learning components (each addressing different aspects of the lifelong learning problem) into a unified system. As an instantiation of L2RLCF, we develop a standard API allowing easy integration of novel lifelong learning components. We describe a case study that demonstrates how multiple independently-developed LL components can be integrated into a single realized system. We also introduce an evaluation environment in order to measure the effect of combining various system components. Our evaluation environment employs different LL scenarios (sequences of tasks) consisting of Starcraft-2 minigames and allows for the fair, comprehensive, and quantitative comparison of different combinations of components within a challenging common evaluation environment.

In recent years, deep learning has infiltrated every field it has touched, reducing the need for specialist knowledge and automating the process of knowledge discovery from data. This review argues that astronomy is no different, and that we are currently in the midst of a deep learning revolution that is transforming the way we do astronomy. We trace the history of astronomical connectionism from the early days of multilayer perceptrons, through the second wave of convolutional and recurrent neural networks, to the current third wave of self-supervised and unsupervised deep learning. We then predict that we will soon enter a fourth wave of astronomical connectionism, in which finetuned versions of an all-encompassing 'foundation' model will replace expertly crafted deep learning models. We argue that such a model can only be brought about through a symbiotic relationship between astronomy and connectionism, whereby astronomy provides high quality multimodal data to train the foundation model, and in turn the foundation model is used to advance astronomical research.

通用数据模型解决了标准化电子健康记录（EHR）数据的许多挑战，但无法将其集成深度表型所需的资源。开放的生物学和生物医学本体论（OBO）铸造本体论提供了可用于生物学知识的语义计算表示，并能够整合多种生物医学数据。但是，将EHR数据映射到OBO Foundry本体论需要大量的手动策展和域专业知识。我们介绍了一个框架，用于将观察性医学成果合作伙伴关系（OMOP）标准词汇介绍给OBO铸造本体。使用此框架，我们制作了92,367条条件，8,615种药物成分和10,673个测量结果的映射。域专家验证了映射准确性，并且在24家医院进行检查时，映射覆盖了99％的条件和药物成分和68％的测量结果。最后，我们证明OMOP2OBO映射可以帮助系统地识别可能受益于基因检测的未诊断罕见病患者。

预测经济的短期动态 - 对经济代理商决策过程的重要意见 - 经常在线性模型中使用滞后指标。这通常在正常时期就足够了，但在危机期间可能不足。本文旨在证明，在非线性机器学习方法的帮助下，非传统和及时的数据（例如零售和批发付款）可以为决策者提供复杂的模型，以准确地估算几乎实时的关键宏观经济指标。此外，我们提供了一组计量经济学工具，以减轻机器学习模型中的过度拟合和解释性挑战，以提高其政策使用的有效性。我们的模型具有付款数据，非线性方法和量身定制的交叉验证方法，有助于提高宏观经济的启示准确性高达40 \％ - 在COVID-19期间的增长较高。我们观察到，付款数据对经济预测的贡献很小，在低和正常增长期间是线性的。但是，在强年或正增长期间，付款数据的贡献很大，不对称和非线性。

在线自主代理能够利用各种潜在的任务知识来源；但是，目前的方法总是只关注一两个。在这里，我们调查了利用多样化知识源以一记模拟的家用移动机器人的新任务学习的挑战和影响。在SOAR认知体系结构中开发的最终代理使用以下域和任务知识来源：与环境的互动，任务执行和规划知识，人类自然语言指导以及从大语言模型（GPT-3）检索到的响应。我们探讨了这些知识来源的不同贡献，并在学习正确的任务知识，人力工作量和计算成本方面评估了不同组合的性能。结合所有来源的结果表明，整合可以在计算成本和人力工作量方面改善一声任务学习。

炎症性肠病（IBD），尤其是溃疡性结肠炎（UC），由内镜医生分级，该评估是风险分层和治疗监测的基础。目前，内窥镜表征在很大程度上取决于操作员，导致IBD患者有时不良的临床结果。我们专注于广泛使用但需要可靠地鉴定粘膜炎症变化的蛋黄酱内窥镜评分（MES）系统。大多数现有的深度学习分类方法无法检测到这些细粒度的变化，从而使UC的分级成为一项具有挑战性的任务。在这项工作中，我们介绍了一个新颖的贴片级实例组歧视，并使用借口 - 不变的表示学习（PLD-pirl）进行自我监督学习（SSL）。我们的实验表明，与基线监督网络和几种最先进的SSL方法相比，准确性和鲁棒性提高了。与基线（RESNET50）监督分类相比，我们提出的PLD-pirl在Hold-Out测试数据中获得了4.75％的改善，而在看不见的中心测试数据中获得了6.64％的速度，以获得TOP-1的准确性。

从自下而上的计算大脑反向构造的长期目标是，本文档的重点是杂色抽象层。首先用状态机器模型描述其操作，开发了基本的宏观体系结构。然后使用支持时间计算的尖峰神经元实现状态机函数。神经元模型基于活跃的尖峰树突，并反映了Hawkins/Numenta神经元模型。通过研究基准来证明该体系结构，其中代理使用宏collumn首先学习，然后导航2-D环境，其中包含随机放置的功能。环境在宏collumn中表示为标记的有向图，其中边缘连接特征，标签表示它们之间的相对位移。

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。