Nearly all jurisdictions in the United States require a professional license exam, commonly referred to as "the Bar Exam," as a precondition for law practice. To even sit for the exam, most jurisdictions require that an applicant completes at least seven years of post-secondary education, including three years at an accredited law school. In addition, most test-takers also undergo weeks to months of further, exam-specific preparation. Despite this significant investment of time and capital, approximately one in five test-takers still score under the rate required to pass the exam on their first try. In the face of a complex task that requires such depth of knowledge, what, then, should we expect of the state of the art in "AI?" In this research, we document our experimental evaluation of the performance of OpenAI's `text-davinci-003` model, often-referred to as GPT-3.5, on the multistate multiple choice (MBE) section of the exam. While we find no benefit in fine-tuning over GPT-3.5's zero-shot performance at the scale of our training data, we do find that hyperparameter optimization and prompt engineering positively impacted GPT-3.5's zero-shot performance. For best prompt and parameters, GPT-3.5 achieves a headline correct rate of 50.3% on a complete NCBE MBE practice exam, significantly in excess of the 25% baseline guessing rate, and performs at a passing rate for both Evidence and Torts. GPT-3.5's ranking of responses is also highly-correlated with correctness; its top two and top three choices are correct 71% and 88% of the time, respectively, indicating very strong non-entailment performance. While our ability to interpret these results is limited by nascent scientific understanding of LLMs and the proprietary nature of GPT, we believe that these results strongly suggest that an LLM will pass the MBE component of the Bar Exam in the near future.
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Laws and their interpretations, legal arguments and agreements\ are typically expressed in writing, leading to the production of vast corpora of legal text. Their analysis, which is at the center of legal practice, becomes increasingly elaborate as these collections grow in size. Natural language understanding (NLU) technologies can be a valuable tool to support legal practitioners in these endeavors. Their usefulness, however, largely depends on whether current state-of-the-art models can generalize across various tasks in the legal domain. To answer this currently open question, we introduce the Legal General Language Understanding Evaluation (LexGLUE) benchmark, a collection of datasets for evaluating model performance across a diverse set of legal NLU tasks in a standardized way. We also provide an evaluation and analysis of several generic and legal-oriented models demonstrating that the latter consistently offer performance improvements across multiple tasks.
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Diabetic Retinopathy (DR) is a leading cause of vision loss in the world, and early DR detection is necessary to prevent vision loss and support an appropriate treatment. In this work, we leverage interactive machine learning and introduce a joint learning framework, termed DRG-Net, to effectively learn both disease grading and multi-lesion segmentation. Our DRG-Net consists of two modules: (i) DRG-AI-System to classify DR Grading, localize lesion areas, and provide visual explanations; (ii) DRG-Expert-Interaction to receive feedback from user-expert and improve the DRG-AI-System. To deal with sparse data, we utilize transfer learning mechanisms to extract invariant feature representations by using Wasserstein distance and adversarial learning-based entropy minimization. Besides, we propose a novel attention strategy at both low- and high-level features to automatically select the most significant lesion information and provide explainable properties. In terms of human interaction, we further develop DRG-Net as a tool that enables expert users to correct the system's predictions, which may then be used to update the system as a whole. Moreover, thanks to the attention mechanism and loss functions constraint between lesion features and classification features, our approach can be robust given a certain level of noise in the feedback of users. We have benchmarked DRG-Net on the two largest DR datasets, i.e., IDRID and FGADR, and compared it to various state-of-the-art deep learning networks. In addition to outperforming other SOTA approaches, DRG-Net is effectively updated using user feedback, even in a weakly-supervised manner.
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Many real-world applications of language models (LMs), such as code autocomplete and writing assistance, involve human-LM interaction, but the main LM benchmarks are non-interactive, where a system produces output without human intervention. To evaluate human-LM interaction, we develop a framework, Human-AI Language-based Interaction Evaluation (H-LINE), that expands non-interactive evaluation along three dimensions, capturing (i) the interactive process, not only the final output; (ii) the first-person subjective experience, not just a third-party assessment; and (iii) notions of preference beyond quality. We then design five tasks ranging from goal-oriented to open-ended to capture different forms of interaction. On four state-of-the-art LMs (three variants of OpenAI's GPT-3 and AI21's J1-Jumbo), we find that non-interactive performance does not always result in better human-LM interaction and that first-person and third-party metrics can diverge, suggesting the importance of examining the nuances of human-LM interaction.
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This is a continuation of our recent paper in which we developed the theory of sequential parametrized motion planning. A sequential parametrized motion planning algorithm produced a motion of the system which is required to visit a prescribed sequence of states, in a certain order, at specified moments of time. In the previous publication we analysed the sequential parametrized topological complexity of the Fadell - Neuwirth fibration which in relevant to the problem of moving multiple robots avoiding collisions with other robots and with obstacles in the Euclidean space. Besides, in the preceeding paper we found the sequential parametrised topological complexity of the Fadell - Neuwirth bundle for the case of the Euclidean space $\Bbb R^d$ of odd dimension as well as the case $d=2$. In the present paper we give the complete answer for an arbitrary $d\ge 2$ even. Moreover, we present an explicit motion planning algorithm for controlling multiple robots in $\Bbb R^d$ having the minimal possible topological complexity; this algorithm is applicable to any number $n$ of robots and any number $m\ge 2$ of obstacles.
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For conceptual design, engineers rely on conventional iterative (often manual) techniques. Emerging parametric models facilitate design space exploration based on quantifiable performance metrics, yet remain time-consuming and computationally expensive. Pure optimisation methods, however, ignore qualitative aspects (e.g. aesthetics or construction methods). This paper provides a performance-driven design exploration framework to augment the human designer through a Conditional Variational Autoencoder (CVAE), which serves as forward performance predictor for given design features as well as an inverse design feature predictor conditioned on a set of performance requests. The CVAE is trained on 18'000 synthetically generated instances of a pedestrian bridge in Switzerland. Sensitivity analysis is employed for explainability and informing designers about (i) relations of the model between features and/or performances and (ii) structural improvements under user-defined objectives. A case study proved our framework's potential to serve as a future co-pilot for conceptual design studies of pedestrian bridges and beyond.
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生成模型生成的合成数据可以增强医学成像中渴望数据深度学习模型的性能和能力。但是,(1)(合成)数据集的可用性有限,并且(2)生成模型训练很复杂,这阻碍了它们在研究和临床应用中的采用。为了减少此入口障碍,我们提出了Medigan,Medigan是一站式商店,用于验证的生成型号,该型号是开源框架 - 不合骨python图书馆。 Medigan允许研究人员和开发人员仅在几行代码中创建,增加和域名。在基于收集的最终用户需求的设计决策的指导下,我们基于生成模型的模块化组件(i)执行,(ii)可视化,(iii)搜索和排名以及(iv)贡献。图书馆的可伸缩性和设计是通过其越来越多的综合且易于使用的验证生成模型来证明的,该模型由21种模型组成,利用9种不同的生成对抗网络体系结构在4个域中在11个数据集中训练,即乳腺摄影,内窥镜检查,X射线和X射线和X射线镜头,X射线和X型。 MRI。此外,在这项工作中分析了Medigan的3个应用,其中包括(a)启用社区范围内的限制数据共享,(b)研究生成模型评估指标以及(c)改进临床下游任务。在(b)中,扩展了公共医学图像综合评估和报告标准,我们根据图像归一化和特定于放射学特征提取了Fr \'Echet Inception距离变异性。
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人类不断与日常对象互动以完成任务。为了了解这种相互作用,计算机需要从观察全身与场景的全身相互作用的相机中重建这些相互作用。由于身体和物体之间的阻塞,运动模糊,深度/比例模棱两可以及手和可抓握的物体零件的低图像分辨率,这是具有挑战性的。为了使问题可以解决,社区要么专注于互动的手,忽略身体或互动的身体,无视双手。 Grab数据集解决了灵活的全身互动,但使用基于标记的MOCAP并缺少图像,而行为则捕获了身体对象互动的视频,但缺乏手动细节。我们使用参数全身模型SMPL-X和已知的对象网格来解决一种新的方法,该方法与Intercap的先前工作局限性,该方法是一种新的方法,可重建从多视图RGB-D数据进行交互的整体和对象。为了应对上述挑战,Intercap使用了两个关键观察:(i)可以使用手和物体之间的接触来改善两者的姿势估计。 (ii)Azure Kinect传感器使我们能够建立一个简单的多视图RGB-D捕获系统,该系统在提供合理的相机间同步时最小化遮挡的效果。使用此方法,我们捕获了Intercap数据集,其中包含10个受试者(5名男性和5个女性)与10个各种尺寸和负担的物体相互作用,包括与手或脚接触。 Intercap总共有223个RGB-D视频,产生了67,357个多视图帧,每个帧包含6个RGB-D图像。我们的方法为每个视频框架提供了伪真正的身体网格和对象。我们的Intercap方法和数据集填补了文献中的重要空白,并支持许多研究方向。我们的数据和代码可用于研究目的。
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我们在面对未衡量的混杂因素时研究离线增强学习(RL)。由于缺乏与环境的在线互动,离线RL面临以下两个重大挑战:(i)代理可能会被未观察到的状态变量混淆; (ii)提前收集的离线数据不能为环境提供足够的覆盖范围。为了应对上述挑战,我们借助工具变量研究了混杂的MDP中的政策学习。具体而言,我们首先建立了基于和边缘化的重要性采样(MIS)的识别结果,以确定混杂的MDP中的预期总奖励结果。然后,通过利用悲观主义和我们的认同结果,我们提出了各种政策学习方法,并具有有限样本的次级临时性保证,可以在最小的数据覆盖范围和建模假设下找到最佳的课堂政策。最后,我们广泛的理论研究和一项由肾脏移植动机的数值研究证明了该方法的有希望的表现。
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我们介绍了泰德(Tidee),这是一种体现的代理,它根据学识渊博的常识对象和房间安排先验来整理一个无序场景。泰德(Tidee)探索家庭环境,检测到其自然位置的对象,渗透到它们的合理对象上下文,在当前场景中定位此类上下文,并重新定位对象。常识先验在三个模块中编码:i)检测到现象对象的视觉声音检测器,ii)对象和空间关系的关联神经图记忆,提出了对象重新定位的合理语义插座和表面,以及iii)引导代理商探索的可视搜索网络,以有效地将利益定位在当前场景中以重新定位对象。我们测试了在AI2THOR模拟环境中整理混乱的场景的潮汐。 Tidee直接从像素和原始深度输入中执行任务,而没有事先观察到同一房间,仅依靠从单独的一组培训房屋中学到的先验。人类对由此产生的房间进行重组的评估表明,泰德(Tidee)的表现优于该模型的消融版本,这些版本不使用一个或多个常识性先验。在相关的房间重新安排基准测试中,该基准使代理可以在重新排列前查看目标状态,我们的模型的简化版本大大胜过了最佳的方法,可以通过大幅度的差距。代码和数据可在项目网站上获得:https://tidee-agent.github.io/。
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