估计分配转移的基于软件AI的医疗设备的测试性能对于评估临床部署之前的安全性,效率和可用性至关重要。由于受管制的医疗设备软件的性质以及获取大量标记的医疗数据集的困难,我们考虑了在未标记的目标域上预测任意黑框模型的测试准确性的任务,而无需修改原始培训过程或原始训练过程或原始源数据的任何分布假设(即,我们将模型视为“黑框”,仅使用预测的输出响应)。我们在几种临床上相关的分配转移类型(机构,硬件扫描仪,Atlas,Atlas,Atlas,Atlas,Atlas,Atlas,Atlas,Atlas,Atlas,Atlas,Atlas,Atlas,Atlas,Atlas,Atlas,乳房X线摄影,皮肤病学和组织病理学)下,提出了一种基于共形预测的“黑盒”测试估计技术,并根据三个医学成像数据集(乳房X线摄影,皮肤病学和组织病理学)对其他方法进行评估。医院)。我们希望通过促进黑盒模型的实用有效估计技术,医疗设备的制造商将制定更标准化和现实的评估程序,以提高临床AI工具的鲁棒性和可信度。
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Starcraft II多代理挑战(SMAC)被创建为合作多代理增强学习(MARL)的具有挑战性的基准问题。 SMAC专注于星际争霸微管理的问题,并假设每个单元都由独立行动并仅具有本地信息的学习代理人单独控制;假定通过分散执行(CTDE)进行集中培训。为了在SMAC中表现良好,MARL算法必须处理多机构信贷分配和联合行动评估的双重问题。本文介绍了一种新的体系结构Transmix,这是一个基于变压器的联合行动值混合网络,与其他最先进的合作MARL解决方案相比,我们显示出高效且可扩展的。 Transmix利用变形金刚学习更丰富的混合功能的能力来结合代理的个人价值函数。它与以前的SMAC场景上的工作相当,并且在困难场景上胜过其他技术,以及被高斯噪音损坏的场景以模拟战争的雾。
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孟加拉语是世界上说话最多的语言之一,全球有超过3亿的演讲者。尽管它很受欢迎,但由于缺乏多样化的开源数据集,对孟加拉语音识别系统的发展的研究受到阻碍。作为前进的道路,我们已经众包孟加拉语音语音数据集,这是句子级自动语音识别语料库。该数据集于Mozilla Common Voice平台上收集,是正在进行的广告系列的一部分,该活动已在2个月内收集了超过400个小时的数据,并且正在迅速增长。我们的分析表明,与OpenSLR孟加拉ASR数据集相比,该数据集具有更多的发言人,音素和环境多样性,这是最大的现有开源孟加拉语语音数据集。我们提供从数据集获得的见解,并讨论未来版本中需要解决的关键语言挑战。此外,我们报告了一些自动语音识别(ASR)算法的当前性能,并为将来的研究设定了基准。
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肿瘤浸润淋巴细胞(TIL)的定量已被证明是乳腺癌患者预后的独立预测因子。通常,病理学家对含有tils的基质区域的比例进行估计,以获得TILS评分。乳腺癌(Tiger)挑战中肿瘤浸润淋巴细胞旨在评估计算机生成的TILS评分的预后意义,以预测作为COX比例风险模型的一部分的存活率。在这一挑战中,作为Tiager团队,我们已经开发了一种算法,以将肿瘤与基质与基质进行第一部分,然后将肿瘤散装区域用于TILS检测。最后,我们使用这些输出来生成每种情况的TILS分数。在初步测试中,我们的方法达到了肿瘤 - 细胞瘤的加权骰子评分为0.791,而淋巴细胞检测的FROC得分为0.572。为了预测生存,我们的模型达到了0.719的C索引。这些结果在老虎挑战的初步测试排行榜中获得了第一名。
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本文介绍了一种采用新方法,防止运输事故和监控驾驶员行为的使用保健AI系统,该系统融入公平和道德。检测到危险的医疗情况和司机的不寻常行为。接近公平算法,以改善决策和解决隐私问题等道德问题,并考虑在医疗保健和驾驶中AI内野外出现的挑战。提供医疗保健专业人员对任何异常活动以及驾驶员的位置,以便使医疗保健专业人员能够立即帮助不稳定的驾驶员。因此,使用医疗保健AI系统允许预测的事故,因此可以基于与ER系统相互作用的车辆内的内置AI系统来保存和生存。
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Wind power forecasting helps with the planning for the power systems by contributing to having a higher level of certainty in decision-making. Due to the randomness inherent to meteorological events (e.g., wind speeds), making highly accurate long-term predictions for wind power can be extremely difficult. One approach to remedy this challenge is to utilize weather information from multiple points across a geographical grid to obtain a holistic view of the wind patterns, along with temporal information from the previous power outputs of the wind farms. Our proposed CNN-RNN architecture combines convolutional neural networks (CNNs) and recurrent neural networks (RNNs) to extract spatial and temporal information from multi-dimensional input data to make day-ahead predictions. In this regard, our method incorporates an ultra-wide learning view, combining data from multiple numerical weather prediction models, wind farms, and geographical locations. Additionally, we experiment with global forecasting approaches to understand the impact of training the same model over the datasets obtained from multiple different wind farms, and we employ a method where spatial information extracted from convolutional layers is passed to a tree ensemble (e.g., Light Gradient Boosting Machine (LGBM)) instead of fully connected layers. The results show that our proposed CNN-RNN architecture outperforms other models such as LGBM, Extra Tree regressor and linear regression when trained globally, but fails to replicate such performance when trained individually on each farm. We also observe that passing the spatial information from CNN to LGBM improves its performance, providing further evidence of CNN's spatial feature extraction capabilities.
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The performance of the Deep Learning (DL) models depends on the quality of labels. In some areas, the involvement of human annotators may lead to noise in the data. When these corrupted labels are blindly regarded as the ground truth (GT), DL models suffer from performance deficiency. This paper presents a method that aims to learn a confident model in the presence of noisy labels. This is done in conjunction with estimating the uncertainty of multiple annotators. We robustly estimate the predictions given only the noisy labels by adding entropy or information-based regularizer to the classifier network. We conduct our experiments on a noisy version of MNIST, CIFAR-10, and FMNIST datasets. Our empirical results demonstrate the robustness of our method as it outperforms or performs comparably to other state-of-the-art (SOTA) methods. In addition, we evaluated the proposed method on the curated dataset, where the noise type and level of various annotators depend on the input image style. We show that our approach performs well and is adept at learning annotators' confusion. Moreover, we demonstrate how our model is more confident in predicting GT than other baselines. Finally, we assess our approach for segmentation problem and showcase its effectiveness with experiments.
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Recent advances in upper limb prostheses have led to significant improvements in the number of movements provided by the robotic limb. However, the method for controlling multiple degrees of freedom via user-generated signals remains challenging. To address this issue, various machine learning controllers have been developed to better predict movement intent. As these controllers become more intelligent and take on more autonomy in the system, the traditional approach of representing the human-machine interface as a human controlling a tool becomes limiting. One possible approach to improve the understanding of these interfaces is to model them as collaborative, multi-agent systems through the lens of joint action. The field of joint action has been commonly applied to two human partners who are trying to work jointly together to achieve a task, such as singing or moving a table together, by effecting coordinated change in their shared environment. In this work, we compare different prosthesis controllers (proportional electromyography with sequential switching, pattern recognition, and adaptive switching) in terms of how they present the hallmarks of joint action. The results of the comparison lead to a new perspective for understanding how existing myoelectric systems relate to each other, along with recommendations for how to improve these systems by increasing the collaborative communication between each partner.
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Nowadays, the current neural network models of dialogue generation(chatbots) show great promise for generating answers for chatty agents. But they are short-sighted in that they predict utterances one at a time while disregarding their impact on future outcomes. Modelling a dialogue's future direction is critical for generating coherent, interesting dialogues, a need that has led traditional NLP dialogue models that rely on reinforcement learning. In this article, we explain how to combine these objectives by using deep reinforcement learning to predict future rewards in chatbot dialogue. The model simulates conversations between two virtual agents, with policy gradient methods used to reward sequences that exhibit three useful conversational characteristics: the flow of informality, coherence, and simplicity of response (related to forward-looking function). We assess our model based on its diversity, length, and complexity with regard to humans. In dialogue simulation, evaluations demonstrated that the proposed model generates more interactive responses and encourages a more sustained successful conversation. This work commemorates a preliminary step toward developing a neural conversational model based on the long-term success of dialogues.
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In this work, we introduce a hypergraph representation learning framework called Hypergraph Neural Networks (HNN) that jointly learns hyperedge embeddings along with a set of hyperedge-dependent embeddings for each node in the hypergraph. HNN derives multiple embeddings per node in the hypergraph where each embedding for a node is dependent on a specific hyperedge of that node. Notably, HNN is accurate, data-efficient, flexible with many interchangeable components, and useful for a wide range of hypergraph learning tasks. We evaluate the effectiveness of the HNN framework for hyperedge prediction and hypergraph node classification. We find that HNN achieves an overall mean gain of 7.72% and 11.37% across all baseline models and graphs for hyperedge prediction and hypergraph node classification, respectively.
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