作为在线广告和标记的关键组成部分，点击率（CTR）预测引起了行业和学术界领域的许多关注。最近，深度学习已成为CTR的主流方法论。尽管做出了可持续的努力，但现有的方法仍然构成了一些挑战。一方面，功能之间的高阶相互作用尚未探索。另一方面，高阶相互作用可能会忽略低阶字段的语义信息。在本文中，我们提出了一种名为Fint的新型预测方法，该方法采用了现场感知的交互层，该层捕获了高阶功能交互，同时保留了低阶现场信息。为了凭经验研究金融的有效性和鲁棒性，我们对三个现实数据库进行了广泛的实验：KDD2012，Criteo和Avazu。获得的结果表明，与现有方法相比，该五颗粒可以显着提高性能，而无需增加所需的计算量。此外，提出的方法通过A/B测试使大型在线视频应用程序的广告收入增加了约2.72 \％。为了更好地促进CTR领域的研究，我们发布了我们的代码以及参考实施，网址为：https：//github.com/zhishan01/fint。

活动相机是一种与传统摄像机不同的新型传感器。每个像素通过事件异步触发。触发事件是在像素上照射的亮度的变化。如果亮度的增量或衰减高于某个阈值，则输出事件。与传统相机相比，活动相机具有高动态范围和运动模糊的优点。将事件累积到帧和使用传统的SLAM算法是一种基于事件的SLAM的直接和有效的方法。不同的事件累加器设置，例如事件流的切片方法，没有动作的处理方法，使用极性，衰减功能和事件贡献，可能导致相当不同的累积结果。我们对如何累积事件帧进行研究以实现更好的基于事件的SLAM性能。对于实验验证，累积的事件帧被馈送到传统的SLAM系统以构建基于事件的SLAM系统。我们的设置事件累加器的策略已在公共数据集上进行评估。实验结果表明，与基于最先进的事件帧的SLAM算法相比，我们的方法可以在大多数序列中实现更好的性能。此外，所提出的方法已经在四轮车UAV上进行了测试，以显示实际方案中的应用程序。代码和结果是开放的，以使事件摄像机的研究界受益

最近关于图表卷积网络（GCN）的研究表明，初始节点表示（即，第一次图卷积前的节点表示）很大程度上影响最终的模型性能。但是，在学习节点的初始表示时，大多数现有工作线性地组合了节点特征的嵌入，而不考虑特征之间的交互（或特征嵌入）。我们认为，当节点特征是分类时，例如，在许多实际应用程序中，如用户分析和推荐系统，功能交互通常会对预测分析进行重要信号。忽略它们将导致次优初始节点表示，从而削弱后续图表卷积的有效性。在本文中，我们提出了一个名为CatGCN的新GCN模型，当节点功能是分类时，为图表学习量身定制。具体地，我们将显式交互建模的两种方式集成到初始节点表示的学习中，即在每对节点特征上的本地交互建模和人工特征图上的全局交互建模。然后，我们通过基于邻域聚合的图形卷积来优化增强的初始节点表示。我们以端到端的方式训练CatGCN，并在半监督节点分类上展示它。来自腾讯和阿里巴巴数据集的三个用户分析的三个任务（预测用户年龄，城市和购买级别）的大量实验验证了CatGCN的有效性，尤其是在图表卷积之前执行特征交互建模的积极效果。

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.

In this paper, we study the problem of knowledge-intensive text-to-SQL, in which domain knowledge is necessary to parse expert questions into SQL queries over domain-specific tables. We formalize this scenario by building a new Chinese benchmark KnowSQL consisting of domain-specific questions covering various domains. We then address this problem by presenting formulaic knowledge, rather than by annotating additional data examples. More concretely, we construct a formulaic knowledge bank as a domain knowledge base and propose a framework (ReGrouP) to leverage this formulaic knowledge during parsing. Experiments using ReGrouP demonstrate a significant 28.2% improvement overall on KnowSQL.