基于采样的路径规划算法通常实现均匀的采样方法来搜索状态空间。然而，统一的采样可能导致许多情况下不必要的探索，例如具有几个死角的环境。我们以前的工作建议使用有希望的区域来指导采样过程来解决问题。然而，预测的有希望区域通常是断开连接，这意味着它们无法连接到开始和目标状态，导致缺乏概率完整性。这项工作侧重于提高预测有前途地区的连通性。我们所提出的方法在x和y方向上回归边缘的连接概率。此外，它可以计算丢失中有希望的边缘的重量，以引导神经网络更加关注有前景区域的连通性。我们进行一系列仿真实验，结果表明，有前途地区的连接性显着提高。此外，我们分析了连接基于采样的路径规划算法的影响，并得出结论，连接在维护算法性能方面发挥着重要作用。

最近，卷积神经网络（CNN）技术具有普及作为高光谱图像分类（HSIC）的工具。为了在有限样品的条件下提高HSIC的特征提取效率，目前的方法通常使用大量层的深层模型。然而，当样品有限时，深网络模型容易出现过度拟合和梯度消失问题。此外，空间分辨率严重降低，深度深度，这对空间边缘特征提取非常有害。因此，这封信提出了一种HSIC的浅模型，称为深度过度参数化卷积神经网络（DOCNN）。为了确保浅模型的有效提取，引入深度过度参数化卷积（DO-CONV）内核以提取歧视特征。深度过度参数化卷积内核由标准卷积内核和深度卷积内核组成，其可以单独地提取不同信道的空间特征，并同时熔合整个通道的空间特征。此外，为了进一步减少由于卷积操作引起的空间边缘特征的损失，提出了一种密集的残余连接（DRC）结构以适用于整个网络的特征提取部分。从三个基准数据集获得的实验结果表明，该方法在分类准确度和计算效率方面优于其他最先进的方法。

在此技术报告中，我们提出了我们的解决方案，称为MV-FCOS3D ++，适用于Waymo Open DataSet Challenge的仅摄像头3D检测轨道2022.仅使用birde-eye-view或3D检测多视图摄像头3D检测几何表示可以利用相邻视图之间重叠区域的立体声提示，而无需手工制作的后处理即可直接执行3D检测。但是，它缺乏对2D骨架的直接语义监督，可以通过预处理简单的单眼探测器来补充。我们的解决方案是此范式之后用于4D检测的多视图框架。它是基于简单的单眼检测器FCOS3D ++构建的，仅通过Waymo的对象注释进行了预定，并将多视图功能转换为3D网格空间以检测其上的3D对象。设计了单帧理解和时间立体声匹配的双路径颈部，以结合多帧信息。我们的方法最终通过单个模型实现了49.75％的MAPL，并在WOD挑战中赢得了第二名，而在训练过程中没有任何基于激光雷达的深度监督。该代码将在https://github.com/tai-wang/depth-from-motion上发布。

由于医学图像的数据稀缺性和数据异质性是普遍存在的，因此在部署到新站点时，使用先前的归一化方法训练有素的卷积神经网络（CNN）可能会表现不佳。但是，现实世界应用程序的可靠模型应该能够在分布（IND）和分布（OOD）数据（例如新站点数据）上很好地概括。在这项研究中，我们提出了一种称为窗口归一化（WIN）的新型归一化技术，这是现有标准化方法的简单而有效的替代方法。具体而言，赢得了与特征窗口上计算的本地统计数据的归一化统计数据。此功能级增强技术可以很好地规范模型，并显着改善了其OOD的概括。利用它的优势，我们提出了一种称为Win Win的新型自我鉴定方法，以进一步改善分类中的OOD概括。通过两次向前传球和一致性约束可以轻松实现双赢，这对于现有方法来说是一个简单的扩展。关于各种任务（例如青光眼检测，乳腺癌检测，染色体分类，视盘和杯赛分割等）和数据集（26个数据集）的广泛实验结果证明了我们方法的一般性和有效性。该代码可从https://github.com/joe1chief/windownormalizaion获得。

视频框架插值（VFI）旨在通过从双向历史参考文献中扭曲可学习的动作来产生预测帧。大多数现有的作品都利用时空语义信息提取器来实现运动估计和插值建模，考虑到产生的中间运动的实际机械合理性，没有足够的考虑。在本文中，我们将VFI重新制定为多变量的非线性（MNL）回归问题，并提出了联合非线性运动回归（JNMR）策略来模拟框架间的复杂运动。为了建立MNL回归，采用ConvlSTM来构建时间维度的完整运动的分布。目标框架和多个参考帧之间的运动相关性可以通过建模的分布进行回归。此外，功能学习网络旨在为MNL回归建模进行优化。进一步进行了一个粗到精细的合成增强模块，以通过重复回归和插值来学习不同分辨率的视觉动力学。框架插值上的高度竞争性实验结果表明，与最先进的性能相比，有效性和显着提高，以及复杂运动估计的鲁棒性通过MNL运动回归提高。

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.

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.

Graph Neural Networks (GNNs) have shown satisfying performance on various graph learning tasks. To achieve better fitting capability, most GNNs are with a large number of parameters, which makes these GNNs computationally expensive. Therefore, it is difficult to deploy them onto edge devices with scarce computational resources, e.g., mobile phones and wearable smart devices. Knowledge Distillation (KD) is a common solution to compress GNNs, where a light-weighted model (i.e., the student model) is encouraged to mimic the behavior of a computationally expensive GNN (i.e., the teacher GNN model). Nevertheless, most existing GNN-based KD methods lack fairness consideration. As a consequence, the student model usually inherits and even exaggerates the bias from the teacher GNN. To handle such a problem, we take initial steps towards fair knowledge distillation for GNNs. Specifically, we first formulate a novel problem of fair knowledge distillation for GNN-based teacher-student frameworks. Then we propose a principled framework named RELIANT to mitigate the bias exhibited by the student model. Notably, the design of RELIANT is decoupled from any specific teacher and student model structures, and thus can be easily adapted to various GNN-based KD frameworks. We perform extensive experiments on multiple real-world datasets, which corroborates that RELIANT achieves less biased GNN knowledge distillation while maintaining high prediction utility.