自动情绪识别（ER）最近由于其在许多实际应用中的潜力而引起了很多兴趣。在这种情况下，已经证明多模式方法可以通过结合多样化和互补的信息来源，从而提高性能（超过单峰方法），从而为嘈杂和缺失的方式提供了一些鲁棒性。在本文中，我们根据从视频中提取的面部和声音方式融合的尺寸ER专注于尺寸，其中探索了互补的视听（A-V）关系，以预测个人在价值空间中的情绪状态。大多数最先进的融合技术都依赖于反复的网络或常规的注意机制，这些机制无法有效利用A-V模式的互补性。为了解决这个问题，我们引入了A-V融合的联合跨注意模型，该模型在A-V模态上提取显着特征，从而可以有效利用模式间关系，同时保留模式内关系。特别是，它根据联合特征表示与单个模式的相关性计算交叉意义权重。通过将联合A-V特征表示形式部署到交叉意见模块中，它有助于同时利用内模式和模态关系，从而显着改善系统的性能，而不是香草交叉意见模块。我们提出的方法的有效性是在Recola和AffWild2数据集的挑战性视频中通过实验验证的。结果表明，我们的跨注意A-V融合模型提供了一种具有成本效益的解决方案，即使模式是嘈杂或不存在的，也可以超越最先进的方法。

本文介绍了一种新的基于合成的防御算法，以抵消为挑战尖端语音到文本转录系统的性能而开发的各种对抗性攻击。我们的算法实现了基于Sobolev的GAN，并提出了一种新颖的正规化程序，以有效控制整个生成模型的功能，尤其是训练过程中的鉴别器网络。我们在对受害者DeepSpeech，Kaldi和Lingvo语音转录系统进行众多实验后取得了成就，证实了我们的防御方法的显着性能，以全面的目标和非目标对抗攻击。

本文介绍了一种用于合成包含连续，二进制和离散柱的表格数据集的双鉴别器GaN。我们所提出的方法采用适应的预处理方案和用于发电机网络的新型条件术语，以更有效地捕获输入样本分布。此外，我们为旨在向发电机提供更多辨别型梯度信息的鉴别器网络来实施直接但有效的架构。我们对四个基准测试公共数据集的实验结果证实了我们在可能性健身度量和机器学习效果方面的卓越性能。

多模式分析最近对情感计算的兴趣很大，因为它可以提高情感识别对孤立的单模态方法的整体准确性。多式联情绪识别最有效的技术有效地利用各种和互补的信息来源，例如面部，声带和生理方式，提供全面的特征表示。在本文中，我们专注于基于视频中提取的面部和声乐方式的融合的尺寸情感识别，其中可以捕获复杂的时空关系。大多数现有的融合技术依赖于经常性网络或传统的注意机制，这些机制没有有效地利用视听（A-V）方式的互补性质。我们介绍了一种跨关注融合方法来提取A-V模式的显着特征，允许准确地预测连续值的价值和唤醒。我们的新的跨关节A-V融合模型有效利用了模态关系。特别地，它计算跨关注权重，以专注于各个模态跨越更贡献的特征，从而组合贡献特征表示，然后将其馈送到完全连接的层以用于预测价和唤醒。所提出的方法的有效性在通过Recolat和疲劳（私人）数据集中的视频上进行了实验验证。结果表明，我们的跨关节A-V融合模型是一种经济高效的方法，优于最先进的融合方法。代码可用：\ url {https://github.com/praveena2j/cross-attentional-av-fusion}

从影片中面部表情的自动估计疼痛强度在医疗保健应用中具有巨大的潜力。然而，需要域适应（DA）以缓解通常在源和目标DO-MAINA捕获的视频数据之间发生的域移位的问题。鉴于收集和注释视频的艰苦任务，以及由于相邻强度水平的模糊而导致的主观偏见，弱监督学习（WSL）在这种应用中越来越关注。然而，大多数最先进的WSL模型通常被制定为回归问题，并且不利用强度水平之间的序数关系，也不是多个连续帧之间的时间相干关系。本文介绍了一种新的深度学习模型，用于弱监控DA，具有序数回归（WSDA-OR），目标域中的视频具有周期性的粗LA-BER。 WSDA或模型强制执行符号关系，在符号到目标序列的强度水平之间，并将多个相关帧与序列级标签关联（而不是单帧）。特别是，它通过将多个静态学习与深对抗性DA集成来学习判别和域不变特征表示，其中软高斯标签用于有效地代表来自目标域的弱序序列级标签。在Recola视频数据集中验证了所提出的方法，作为完全标记的源域，unbc-mcmaster视频数据作为弱标记的目标域。我们还验证了WSDA - 或Biovid和疲劳（私有）数据集进行序列级别估计。实验结果表明，我们的方法可以对最先进的模型提供显着改进，从而实现更大的本地化精度。

We consider the contextual bandit problem on general action and context spaces, where the learner's rewards depend on their selected actions and an observable context. This generalizes the standard multi-armed bandit to the case where side information is available, e.g., patients' records or customers' history, which allows for personalized treatment. We focus on consistency -- vanishing regret compared to the optimal policy -- and show that for large classes of non-i.i.d. contexts, consistency can be achieved regardless of the time-invariant reward mechanism, a property known as universal consistency. Precisely, we first give necessary and sufficient conditions on the context-generating process for universal consistency to be possible. Second, we show that there always exists an algorithm that guarantees universal consistency whenever this is achievable, called an optimistically universal learning rule. Interestingly, for finite action spaces, learnable processes for universal learning are exactly the same as in the full-feedback setting of supervised learning, previously studied in the literature. In other words, learning can be performed with partial feedback without any generalization cost. The algorithms balance a trade-off between generalization (similar to structural risk minimization) and personalization (tailoring actions to specific contexts). Lastly, we consider the case of added continuity assumptions on rewards and show that these lead to universal consistency for significantly larger classes of data-generating processes.

In this paper, we present a novel visual SLAM and long-term localization benchmark for autonomous driving in challenging conditions based on the large-scale 4Seasons dataset. The proposed benchmark provides drastic appearance variations caused by seasonal changes and diverse weather and illumination conditions. While significant progress has been made in advancing visual SLAM on small-scale datasets with similar conditions, there is still a lack of unified benchmarks representative of real-world scenarios for autonomous driving. We introduce a new unified benchmark for jointly evaluating visual odometry, global place recognition, and map-based visual localization performance which is crucial to successfully enable autonomous driving in any condition. The data has been collected for more than one year, resulting in more than 300 km of recordings in nine different environments ranging from a multi-level parking garage to urban (including tunnels) to countryside and highway. We provide globally consistent reference poses with up to centimeter-level accuracy obtained from the fusion of direct stereo-inertial odometry with RTK GNSS. We evaluate the performance of several state-of-the-art visual odometry and visual localization baseline approaches on the benchmark and analyze their properties. The experimental results provide new insights into current approaches and show promising potential for future research. Our benchmark and evaluation protocols will be available at https://www.4seasons-dataset.com/.

Implicit Neural Representations (INR) have recently shown to be powerful tool for high-quality video compression. However, existing works are limiting as they do not explicitly exploit the temporal redundancy in videos, leading to a long encoding time. Additionally, these methods have fixed architectures which do not scale to longer videos or higher resolutions. To address these issues, we propose NIRVANA, which treats videos as groups of frames and fits separate networks to each group performing patch-wise prediction. This design shares computation within each group, in the spatial and temporal dimensions, resulting in reduced encoding time of the video. The video representation is modeled autoregressively, with networks fit on a current group initialized using weights from the previous group's model. To further enhance efficiency, we perform quantization of the network parameters during training, requiring no post-hoc pruning or quantization. When compared with previous works on the benchmark UVG dataset, NIRVANA improves encoding quality from 37.36 to 37.70 (in terms of PSNR) and the encoding speed by 12X, while maintaining the same compression rate. In contrast to prior video INR works which struggle with larger resolution and longer videos, we show that our algorithm is highly flexible and scales naturally due to its patch-wise and autoregressive designs. Moreover, our method achieves variable bitrate compression by adapting to videos with varying inter-frame motion. NIRVANA achieves 6X decoding speed and scales well with more GPUs, making it practical for various deployment scenarios.

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.

Large language models have ushered in a golden age of semantic parsing. The seq2seq paradigm allows for open-schema and abstractive attribute and relation extraction given only small amounts of finetuning data. Language model pretraining has simultaneously enabled great strides in natural language inference, reasoning about entailment and implication in free text. These advances motivate us to construct ImPaKT, a dataset for open-schema information extraction, consisting of around 2500 text snippets from the C4 corpus, in the shopping domain (product buying guides), professionally annotated with extracted attributes, types, attribute summaries (attribute schema discovery from idiosyncratic text), many-to-one relations between compound and atomic attributes, and implication relations. We release this data in hope that it will be useful in fine tuning semantic parsers for information extraction and knowledge base construction across a variety of domains. We evaluate the power of this approach by fine-tuning the open source UL2 language model on a subset of the dataset, extracting a set of implication relations from a corpus of product buying guides, and conducting human evaluations of the resulting predictions.