安装在机器人上的光学扫描仪通常用于质量检查，例如验证片状结构的尺寸规格。覆盖路径规划（CPP）显着影响机器人质量检验的准确性和效率。传统的CPP战略专注于最小化机器人的观点次数或在完全覆盖检查的条件下。在自由形状表面检查中较少考虑收集扫描数据时的测量不确定度。为了解决这个问题，提出了一种具有最佳观点采样策略的新型CPP方法，以将键测量点（MPS）的测量不确定性纳入自由形状表面检查。首先，基于MP的公差规范计算可行的测量不确定性范围。考虑测量不确定度和MPS的可见性，生成初始可行性视点集。然后，构建检查成本函数以评估所选视点的视野（FOV）的选定视点的数量和平均测量不确定性。之后，提出了一种增强的快速探索随机树（RRT *）算法，用于使用检查成本函数和CPP优化的观点采样。已经进行了案例研究，包括模拟试验和检查实验，以评估所提出的方法的有效性。结果表明，与基准法相比，关键MPS的扫描精度显着提高。

尽管图形神经网络（GNNS）已成功地用于节点分类任务并在图中链接预测任务，但学习图级表示仍然是一个挑战。对于图级表示，重要的是要学习相邻节点的表示形式，即聚合和图形结构信息。为此目标开发了许多图形合并方法。但是，大多数现有的合并方法都使用K-HOP社区，而无需考虑图中的明确结构信息。在本文中，我们提出了使用先前的图形结构来克服限制的结构原型指导池（SPGP）。 SPGP将图形结构制定为可学习的原型向量，并计算节点和原型矢量之间的亲和力。这导致了一种新颖的节点评分方案，该方案在封装图形的有用结构的同时优先考虑信息性节点。我们的实验结果表明，SPGP的精度和可扩展性都优于图形分类基准数据集上的最先进的图形合并方法。

最近，图形神经网络（GNN）已被广泛用于文档分类。但是，大多数现有方法都基于没有句子级信息的静态词共同发生图，它构成了三个挑战：（1）字歧义，（2）字同义词和（3）动态上下文依赖性。为解决这些挑战，我们提出了一种用于归纳文档分类的新型GNN的稀疏结构学习模型。具体地，文档级图最初由句子级字共有图的不相交联盟生成。我们的模型收集了一系列连接句子之间的脱节单词的可训练边，并采用结构学习稀疏地选择具有动态上下文依赖性的边缘。具有稀疏结构的图形可以通过GNN共同利用文档中的本地和全局上下文信息。对于归纳学习，精致的文档图进一步馈入以端到端的方式的图形级分类和优化的一般读出函数。在几个现实世界数据集上的广泛实验表明，所提出的模型优于最先进的结果，并揭示了学习每个文档的稀疏结构的必要性。

反复解决参数化最佳质量传输（POMT）问题是在图像配准和自适应网格生成的应用中的频繁任务。因此，开发一种高效的减少的解算器是至关重要的，该求解器同样准确为完整的订单模型。在本文中，我们通过调整用于非线性方程的专门设计的新的降低基础（RB）技术，提出了这种机器学习方法，该方法专门针对非线性方程设计，降低的剩余减少的过度搭配（R2-ROC）方法，对参数化的Monge- AMP $ \ agag {\ rm e} $重新等式。它构建在狭窄的模板有限不同方法（FDM）的顶部，是一个所谓的真理求解器，我们在本文中提出了与传输边界的Monge-AMP $ \ agr \ gamet {\ rm e} $重新等式。与R2-ROC方法一起，它使我们能够处理与Monge-AMP $ \ agom {\ RM e} $ RE方程有关的强大和独特的非线性，而不是诉诸非线性的任何直接近似的在线效率。有几个具有挑战性的数值测试展示了我们用各种参数边界条件解决Monge-AMP $ \ aga {\ rm e} $重新等式的方法的准确性和高效率。

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.

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.

This paper focuses on designing efficient models with low parameters and FLOPs for dense predictions. Even though CNN-based lightweight methods have achieved stunning results after years of research, trading-off model accuracy and constrained resources still need further improvements. This work rethinks the essential unity of efficient Inverted Residual Block in MobileNetv2 and effective Transformer in ViT, inductively abstracting a general concept of Meta-Mobile Block, and we argue that the specific instantiation is very important to model performance though sharing the same framework. Motivated by this phenomenon, we deduce a simple yet efficient modern \textbf{I}nverted \textbf{R}esidual \textbf{M}obile \textbf{B}lock (iRMB) for mobile applications, which absorbs CNN-like efficiency to model short-distance dependency and Transformer-like dynamic modeling capability to learn long-distance interactions. Furthermore, we design a ResNet-like 4-phase \textbf{E}fficient \textbf{MO}del (EMO) based only on a series of iRMBs for dense applications. Massive experiments on ImageNet-1K, COCO2017, and ADE20K benchmarks demonstrate the superiority of our EMO over state-of-the-art methods, \eg, our EMO-1M/2M/5M achieve 71.5, 75.1, and 78.4 Top-1 that surpass \textbf{SoTA} CNN-/Transformer-based models, while trading-off the model accuracy and efficiency well.

Benefiting from the intrinsic supervision information exploitation capability, contrastive learning has achieved promising performance in the field of deep graph clustering recently. However, we observe that two drawbacks of the positive and negative sample construction mechanisms limit the performance of existing algorithms from further improvement. 1) The quality of positive samples heavily depends on the carefully designed data augmentations, while inappropriate data augmentations would easily lead to the semantic drift and indiscriminative positive samples. 2) The constructed negative samples are not reliable for ignoring important clustering information. To solve these problems, we propose a Cluster-guided Contrastive deep Graph Clustering network (CCGC) by mining the intrinsic supervision information in the high-confidence clustering results. Specifically, instead of conducting complex node or edge perturbation, we construct two views of the graph by designing special Siamese encoders whose weights are not shared between the sibling sub-networks. Then, guided by the high-confidence clustering information, we carefully select and construct the positive samples from the same high-confidence cluster in two views. Moreover, to construct semantic meaningful negative sample pairs, we regard the centers of different high-confidence clusters as negative samples, thus improving the discriminative capability and reliability of the constructed sample pairs. Lastly, we design an objective function to pull close the samples from the same cluster while pushing away those from other clusters by maximizing and minimizing the cross-view cosine similarity between positive and negative samples. Extensive experimental results on six datasets demonstrate the effectiveness of CCGC compared with the existing state-of-the-art algorithms.

As one of the prevalent methods to achieve automation systems, Imitation Learning (IL) presents a promising performance in a wide range of domains. However, despite the considerable improvement in policy performance, the corresponding research on the explainability of IL models is still limited. Inspired by the recent approaches in explainable artificial intelligence methods, we proposed a model-agnostic explaining framework for IL models called R2RISE. R2RISE aims to explain the overall policy performance with respect to the frames in demonstrations. It iteratively retrains the black-box IL model from the randomized masked demonstrations and uses the conventional evaluation outcome environment returns as the coefficient to build an importance map. We also conducted experiments to investigate three major questions concerning frames' importance equality, the effectiveness of the importance map, and connections between importance maps from different IL models. The result shows that R2RISE successfully distinguishes important frames from the demonstrations.