遮挡对人重新识别（Reid）构成了重大挑战。现有方法通常依赖于外部工具来推断可见的身体部位，这在计算效率和Reid精度方面可能是次优。特别是，在面对复杂的闭塞时，它们可能会失败，例如行人之间的遮挡。因此，在本文中，我们提出了一种名为M质量感知部分模型（QPM）的新方法，用于遮挡鲁棒Reid。首先，我们建议共同学习零件特征和预测部分质量分数。由于没有提供质量注释，我们介绍了一种自动将低分分配给闭塞体部位的策略，从而削弱了遮挡体零落在Reid结果上的影响。其次，基于预测部分质量分数，我们提出了一种新颖的身份感知空间关注（ISA）模块。在该模块中，利用粗略标识感知功能来突出目标行人的像素，以便处理行人之间的遮挡。第三，我们设计了一种自适应和有效的方法，用于了解来自每个图像对的共同非遮挡区域的全局特征。这种设计至关重要，但经常被现有方法忽略。 QPM有三个关键优势：1）它不依赖于培训或推理阶段的任何外部工具; 2）它处理由物体和其他行人引起的闭塞; 3）它是高度计算效率。对闭塞Reid的四个流行数据库的实验结果证明QPM始终如一地以显着的利润方式优于最先进的方法。 QPM代码将被释放。

生成对抗网络的广泛应用受益于成功的训练方法，保证对象功能会聚到本地最小值。然而，由于基于梯度的方式的循环行为和基于Hessian矩阵的这些方法的昂贵计算成本，设计了高效竞争的训练方法仍然是一个具有挑战性的任务。本文提出了自适应复合梯度（ACG）方法，在合适的设置下线性收敛。理论和玩具功能实验表明，我们的方法可以缓解循环行为，并比最近提出的算法更快地收敛。值得注意的是，ACG方法不仅用于在双线性游戏以及一般游戏中找到稳定的固定点。 ACG方法是一种新的半渐变算法，因为它不需要计算每个步骤的梯度，通过利用未来迭代中的预测信息来降低梯度和黑森州的计算成本。我们通过将ACG与线性GANS集成到现有算法来进行高斯实验的两种混合。结果显示ACG与先前的算法具有竞争力。具有DCGANS的四个普遍数据集（Mnist，Fashion-Mnist，CIFAR-10和Celeba）的现实实验表明我们的ACG方法优于多个基线，说明了我们方法的优越性和功效。

区分观点的重要性已经证明对半监督多视图学习模型非常有用。但是，现有策略不能利用半监督信息，只区分从数据特征的角度来看视图的重要性，这通常受到低质量观点的影响，然后导致性能差。在本文中，通过建立标记数据与不同视图的重要性之间的联系，我们提出了一种自动加权策略来评估从标签视角来评估视图的重要性，以避免不重要或低质量视图的负面影响。基于此策略，我们提出了一种转导半监督自动加权多视图分类模型。可以通过标记的数据有效地确定所提出的模型的初始化，这是实用的。该模型分离为三个小规模的子问题，可以通过局部收敛保证有效地优化。分类任务的实验结果表明，与其他相关方法相比，该方法以最低计算成本实现最佳或次优的分类精度，重量变更实验表明，我们所提出的策略可以比其他相关策略更准确地区分视图重要性在具有低质量视图的多视图数据集上。

张量鲁棒主成分分析（TRPCA）是机器学习和计算机视觉中的基本模型。最近，张力列车（TT）分解已经过验证了捕获张量恢复任务的全局低秩相关性。然而，由于现实世界应用中的大规模张量数据，之前的TRPCA模型经常遭受高计算复杂性。在这封信中，我们提出了一个高效的TRPCA，在Tucker和TT的混合模型下。具体地，理论上我们揭示了原始大张量的TT核规范（TTNN）可以通过Tucker压缩格式等同地转换为更小的张量，从而显着降低了奇异值分解（SVD）的计算成本。合成和现实世界张量数据的数值实验验证了所提出的模型的优越性。

Masked image modeling (MIM) performs strongly in pre-training large vision Transformers (ViTs). However, small models that are critical for real-world applications cannot or only marginally benefit from this pre-training approach. In this paper, we explore distillation techniques to transfer the success of large MIM-based pre-trained models to smaller ones. We systematically study different options in the distillation framework, including distilling targets, losses, input, network regularization, sequential distillation, etc, revealing that: 1) Distilling token relations is more effective than CLS token- and feature-based distillation; 2) An intermediate layer of the teacher network as target perform better than that using the last layer when the depth of the student mismatches that of the teacher; 3) Weak regularization is preferred; etc. With these findings, we achieve significant fine-tuning accuracy improvements over the scratch MIM pre-training on ImageNet-1K classification, using all the ViT-Tiny, ViT-Small, and ViT-base models, with +4.2%/+2.4%/+1.4% gains, respectively. Our TinyMIM model of base size achieves 52.2 mIoU in AE20K semantic segmentation, which is +4.1 higher than the MAE baseline. Our TinyMIM model of tiny size achieves 79.6% top-1 accuracy on ImageNet-1K image classification, which sets a new record for small vision models of the same size and computation budget. This strong performance suggests an alternative way for developing small vision Transformer models, that is, by exploring better training methods rather than introducing inductive biases into architectures as in most previous works. Code is available at https://github.com/OliverRensu/TinyMIM.

In this paper, we propose a robust 3D detector, named Cross Modal Transformer (CMT), for end-to-end 3D multi-modal detection. Without explicit view transformation, CMT takes the image and point clouds tokens as inputs and directly outputs accurate 3D bounding boxes. The spatial alignment of multi-modal tokens is performed implicitly, by encoding the 3D points into multi-modal features. The core design of CMT is quite simple while its performance is impressive. CMT obtains 73.0% NDS on nuScenes benchmark. Moreover, CMT has a strong robustness even if the LiDAR is missing. Code will be released at https://github.com/junjie18/CMT.

Dataset distillation has emerged as a prominent technique to improve data efficiency when training machine learning models. It encapsulates the knowledge from a large dataset into a smaller synthetic dataset. A model trained on this smaller distilled dataset can attain comparable performance to a model trained on the original training dataset. However, the existing dataset distillation techniques mainly aim at achieving the best trade-off between resource usage efficiency and model utility. The security risks stemming from them have not been explored. This study performs the first backdoor attack against the models trained on the data distilled by dataset distillation models in the image domain. Concretely, we inject triggers into the synthetic data during the distillation procedure rather than during the model training stage, where all previous attacks are performed. We propose two types of backdoor attacks, namely NAIVEATTACK and DOORPING. NAIVEATTACK simply adds triggers to the raw data at the initial distillation phase, while DOORPING iteratively updates the triggers during the entire distillation procedure. We conduct extensive evaluations on multiple datasets, architectures, and dataset distillation techniques. Empirical evaluation shows that NAIVEATTACK achieves decent attack success rate (ASR) scores in some cases, while DOORPING reaches higher ASR scores (close to 1.0) in all cases. Furthermore, we conduct a comprehensive ablation study to analyze the factors that may affect the attack performance. Finally, we evaluate multiple defense mechanisms against our backdoor attacks and show that our attacks can practically circumvent these defense mechanisms.

Blind image quality assessment (BIQA) remains challenging due to the diversity of distortion and image content variation, which complicate the distortion patterns crossing different scales and aggravate the difficulty of the regression problem for BIQA. However, existing BIQA methods often fail to consider multi-scale distortion patterns and image content, and little research has been done on learning strategies to make the regression model produce better performance. In this paper, we propose a simple yet effective Progressive Multi-Task Image Quality Assessment (PMT-IQA) model, which contains a multi-scale feature extraction module (MS) and a progressive multi-task learning module (PMT), to help the model learn complex distortion patterns and better optimize the regression issue to align with the law of human learning process from easy to hard. To verify the effectiveness of the proposed PMT-IQA model, we conduct experiments on four widely used public datasets, and the experimental results indicate that the performance of PMT-IQA is superior to the comparison approaches, and both MS and PMT modules improve the model's performance.

Automatic music generation with artificial intelligence typically requires a large amount of data which is hard to obtain for many less common genres and musical instruments. To tackle this issue, we present ongoing work and preliminary findings on the possibility for deep models to transfer knowledge from language to music, by finetuning large language models pre-trained on a massive text corpus on only hundreds of MIDI files of drum performances. We show that by doing so, one of the largest, state-of-the-art models (GPT3) is capable of generating reasonable drum grooves, while models that are not pre-trained (Transformer) shows no such ability beyond naive repetition. Evaluating generated music is a challenging task, more so is evaluating drum grooves with little precedence in literature. Hence, we propose a tailored structural evaluation method and analyze drum grooves produced by GPT3 compared to those played by human professionals, exposing the strengths and weaknesses of such generation by language-to-music transfer. Our findings suggest that language-to-music transfer learning with large language models is viable and promising.

Few Shot Instance Segmentation (FSIS) requires models to detect and segment novel classes with limited several support examples. In this work, we explore a simple yet unified solution for FSIS as well as its incremental variants, and introduce a new framework named Reference Twice (RefT) to fully explore the relationship between support/query features based on a Transformer-like framework. Our key insights are two folds: Firstly, with the aid of support masks, we can generate dynamic class centers more appropriately to re-weight query features. Secondly, we find that support object queries have already encoded key factors after base training. In this way, the query features can be enhanced twice from two aspects, i.e., feature-level and instance-level. In particular, we firstly design a mask-based dynamic weighting module to enhance support features and then propose to link object queries for better calibration via cross-attention. After the above steps, the novel classes can be improved significantly over our strong baseline. Additionally, our new framework can be easily extended to incremental FSIS with minor modification. When benchmarking results on the COCO dataset for FSIS, gFSIS, and iFSIS settings, our method achieves a competitive performance compared to existing approaches across different shots, e.g., we boost nAP by noticeable +8.2/+9.4 over the current state-of-the-art FSIS method for 10/30-shot. We further demonstrate the superiority of our approach on Few Shot Object Detection. Code and model will be available.