大多数GaN（生成的对抗网络）基于高保真波形的方法，严重依赖于鉴别者来提高其性能。然而，该GaN方法的过度使用引入了生成过程中的许多不确定性，并且通常导致音调和强度不匹配，当使用诸如唱歌语音合成（SVS）敏感时，这是致命的。为了解决这个问题，我们提出了一种高保真神经声码器的Refinegan，具有更快的实时发电能力，并专注于鲁棒性，俯仰和强度精度和全带音频生成。我们采用了一种具有基于多尺度谱图的损耗功能的播放引导的细化架构，以帮助稳定训练过程，并在使用基于GaN的训练方法的同时保持神经探测器的鲁棒性。与地面真实音频相比，使用此方法生成的音频显示在主观测试中更好的性能。该结果表明，通过消除由扬声器和记录过程产生的缺陷，在波形重建期间甚至改善了保真度。此外，进一步的研究表明，在特定类型的数据上培训的模型可以在完全看不见的语言和看不见的扬声器上相同地执行。生成的样本对在https://timedomain-tech.github.io/refinegor上提供。

神经网络的宽度很重要，因为增加了宽度，这必然会增加模型容量。但是，网络的性能不会随宽度而线性地提高，并且很快就会饱和。在这种情况下，我们认为，增加网络数量（合奏）的数量比纯粹增加宽度可以实现更好的准确性效率折衷。为了证明这一点，一个大型网络就其参数和正则化组件分为几个小网络。这些小型网络中的每一个都有原始参数的一小部分。然后，我们一起训练这些小型网络，使他们看到相同数据的各种观点，以增加它们的多样性。在此共同培训过程中，网络也可以相互学习。结果，小型网络可以比几乎没有或没有额外参数或拖船的大型网络获得更好的合奏性能，即实现更好的准确性效率折衷。通过并发运行，小型网络还可以比大型推理速度更快。以上所有内容都表明，网络的数量是模型缩放的新维度。我们通过广泛的实验在共同基准上使用8种不同的神经体系结构来验证我们的论点。该代码可在\ url {https://github.com/freeformrobotics/divide-and-co-training}中获得。

Compared to typical multi-sensor systems, monocular 3D object detection has attracted much attention due to its simple configuration. However, there is still a significant gap between LiDAR-based and monocular-based methods. In this paper, we find that the ill-posed nature of monocular imagery can lead to depth ambiguity. Specifically, objects with different depths can appear with the same bounding boxes and similar visual features in the 2D image. Unfortunately, the network cannot accurately distinguish different depths from such non-discriminative visual features, resulting in unstable depth training. To facilitate depth learning, we propose a simple yet effective plug-and-play module, One Bounding Box Multiple Objects (OBMO). Concretely, we add a set of suitable pseudo labels by shifting the 3D bounding box along the viewing frustum. To constrain the pseudo-3D labels to be reasonable, we carefully design two label scoring strategies to represent their quality. In contrast to the original hard depth labels, such soft pseudo labels with quality scores allow the network to learn a reasonable depth range, boosting training stability and thus improving final performance. Extensive experiments on KITTI and Waymo benchmarks show that our method significantly improves state-of-the-art monocular 3D detectors by a significant margin (The improvements under the moderate setting on KITTI validation set are $\mathbf{1.82\sim 10.91\%}$ mAP in BEV and $\mathbf{1.18\sim 9.36\%}$ mAP in 3D}. Codes have been released at https://github.com/mrsempress/OBMO.

Weakly supervised semantic segmentation (WSSS) with image-level labels is a challenging task in computer vision. Mainstream approaches follow a multi-stage framework and suffer from high training costs. In this paper, we explore the potential of Contrastive Language-Image Pre-training models (CLIP) to localize different categories with only image-level labels and without any further training. To efficiently generate high-quality segmentation masks from CLIP, we propose a novel framework called CLIP-ES for WSSS. Our framework improves all three stages of WSSS with special designs for CLIP: 1) We introduce the softmax function into GradCAM and exploit the zero-shot ability of CLIP to suppress the confusion caused by non-target classes and backgrounds. Meanwhile, to take full advantage of CLIP, we re-explore text inputs under the WSSS setting and customize two text-driven strategies: sharpness-based prompt selection and synonym fusion. 2) To simplify the stage of CAM refinement, we propose a real-time class-aware attention-based affinity (CAA) module based on the inherent multi-head self-attention (MHSA) in CLIP-ViTs. 3) When training the final segmentation model with the masks generated by CLIP, we introduced a confidence-guided loss (CGL) to mitigate noise and focus on confident regions. Our proposed framework dramatically reduces the cost of training for WSSS and shows the capability of localizing objects in CLIP. Our CLIP-ES achieves SOTA performance on Pascal VOC 2012 and MS COCO 2014 while only taking 10% time of previous methods for the pseudo mask generation. Code is available at https://github.com/linyq2117/CLIP-ES.

We present a framework for ranking images within their class based on the strength of spurious cues present. By measuring the gap in accuracy on the highest and lowest ranked images (we call this spurious gap), we assess spurious feature reliance for $89$ diverse ImageNet models, finding that even the best models underperform in images with weak spurious presence. However, the effect of spurious cues varies far more dramatically across classes, emphasizing the crucial, often overlooked, class-dependence of the spurious correlation problem. While most spurious features we observe are clarifying (i.e. improving test-time accuracy when present, as is typically expected), we surprisingly find many cases of confusing spurious features, where models perform better when they are absent. We then close the spurious gap by training new classification heads on lowly ranked (i.e. without common spurious cues) images, resulting in improved effective robustness to distribution shifts (ObjectNet, ImageNet-R, ImageNet-Sketch). We also propose a second metric to assess feature reliability, finding that spurious features are generally less reliable than non-spurious (core) ones, though again, spurious features can be more reliable for certain classes. To enable our analysis, we annotated $5,000$ feature-class dependencies over {\it all} of ImageNet as core or spurious using minimal human supervision. Finally, we show the feature discovery and spuriosity ranking framework can be extended to other datasets like CelebA and WaterBirds in a lightweight fashion with only linear layer training, leading to discovering a previously unknown racial bias in the Celeb-A hair classification.

Existing neural rendering methods for creating human avatars typically either require dense input signals such as video or multi-view images, or leverage a learned prior from large-scale specific 3D human datasets such that reconstruction can be performed with sparse-view inputs. Most of these methods fail to achieve realistic reconstruction when only a single image is available. To enable the data-efficient creation of realistic animatable 3D humans, we propose ELICIT, a novel method for learning human-specific neural radiance fields from a single image. Inspired by the fact that humans can easily reconstruct the body geometry and infer the full-body clothing from a single image, we leverage two priors in ELICIT: 3D geometry prior and visual semantic prior. Specifically, ELICIT introduces the 3D body shape geometry prior from a skinned vertex-based template model (i.e., SMPL) and implements the visual clothing semantic prior with the CLIP-based pre-trained models. Both priors are used to jointly guide the optimization for creating plausible content in the invisible areas. In order to further improve visual details, we propose a segmentation-based sampling strategy that locally refines different parts of the avatar. Comprehensive evaluations on multiple popular benchmarks, including ZJU-MoCAP, Human3.6M, and DeepFashion, show that ELICIT has outperformed current state-of-the-art avatar creation methods when only a single image is available. Code will be public for reseach purpose at https://elicit3d.github.io .

尽管具有明显的区分靶向分布样本的能力，但深度神经网络在检测异常分布数据方面的性能差。为了解决此缺陷，最先进的解决方案选择在离群值的辅助数据集上训练深网。这些辅助离群值的各种培训标准是根据启发式直觉提出的。但是，我们发现这些直观设计的离群训练标准可能会损害分布学习，并最终导致劣等的表现。为此，我们确定了分布不兼容的三个原因：矛盾的梯度，错误的可能性和分布变化。基于我们的新理解，我们通过调整深层模型和损耗函数的顶级设计，提出一种新的分布检测方法。我们的方法通过减少对分布特征的概率特征的干扰来实现分布兼容性。在几个基准上，我们的方法不仅可以实现最新的分布检测性能，而且还提高了分布精度。

场景图生成（SGG）任务旨在在给定图像中检测所有对象及其成对的视觉关系。尽管SGG在过去几年中取得了显着的进展，但几乎所有现有的SGG模型都遵循相同的训练范式：他们将SGG中的对象和谓词分类视为单标签分类问题，而地面真实性是一个hot目标。标签。但是，这种普遍的训练范式忽略了当前SGG数据集的两个特征：1）对于正样本，某些特定的主题对象实例可能具有多个合理的谓词。 2）对于负样本，有许多缺失的注释。不管这两个特征如何，SGG模型都很容易被混淆并做出错误的预测。为此，我们为无偏SGG提出了一种新颖的模型不合命相的标签语义知识蒸馏（LS-KD）。具体而言，LS-KD通过将预测的标签语义分布（LSD）与其原始的单热目标标签融合来动态生成每个主题对象实例的软标签。 LSD反映了此实例和多个谓词类别之间的相关性。同时，我们提出了两种不同的策略来预测LSD：迭代自我KD和同步自我KD。大量的消融和对三项SGG任务的结果证明了我们所提出的LS-KD的优势和普遍性，这些LS-KD可以始终如一地实现不同谓词类别之间的不错的权衡绩效。

两阶段探测器在3D对象检测中已广受欢迎。大多数两阶段的3D检测器都使用网格点，体素电网或第二阶段的ROI特征提取的采样关键点。但是，这种方法在处理不均匀分布和稀疏的室外点方面效率低下。本文在三个方面解决了这个问题。 1）动态点聚集。我们建议补丁搜索以快速在本地区域中为每个3D提案搜索点。然后，将最远的体素采样采样用于均匀采样点。特别是，体素尺寸沿距离变化，以适应点的不均匀分布。 2）Ro-Graph Poling。我们在采样点上构建本地图，以通过迭代消息传递更好地模型上下文信息和地雷关系。 3）视觉功能增强。我们引入了一种简单而有效的融合策略，以补偿具有有限语义提示的稀疏激光雷达点。基于这些模块，我们将图形R-CNN构建为第二阶段，可以将其应用于现有的一阶段检测器，以始终如一地提高检测性能。广泛的实验表明，图R-CNN的表现优于最新的3D检测模型，而Kitti和Waymo Open DataSet的差距很大。我们在Kitti Bev汽车检测排行榜上排名第一。代码将在\ url {https://github.com/nightmare-n/graphrcnn}上找到。

数据中毒考虑了一个对手，该对手扭曲了用于恶意目的的机器学习算法的训练集。在这项工作中，我们揭示了一个关于数据中毒基本原理的猜想，我们称之为致命的剂量猜想。猜想指出：如果需要$ n $清洁的训练样品才能进行准确的预测，则在尺寸 - $ n $训练套件中，只能在确保准确性的同时耐受$ \ theta（n/n）$中毒样品。从理论上讲，我们在多种情况下验证了这一猜想。我们还通过分配歧视提供了对这种猜想的更普遍的看法。深度分区聚合（DPA）及其扩展，有限聚合（FA）是可证明防御数据中毒的可证明防御方法的方法，他们通过使用给定的学习者从不同的培训集中训练的许多基本模型对许多基本模型进行了预测。猜想意味着DPA和FA都是最佳的 - 如果我们拥有最高的学习者，它们可以将其变成针对数据中毒的最强大的防御能力之一。这概述了一种实用方法，可以通过寻找数据效率的学习者来开发更强大的防御能力。从经验上讲，作为概念的证明，我们表明，通过简单地为基础学习者使用不同的数据增强，我们可以分别将DPA在CIFAR-10和GTSRB上的认证稳健性和三倍，而无需牺牲准确性。