Twitter机器人检测是一项重要且有意义的任务。现有的基于文本的方法可以深入分析用户推文内容，从而实现高性能。但是，新颖的Twitter机器人通过窃取真正的用户的推文并用良性推文稀释恶意内容来逃避这些检测。这些新颖的机器人被认为以语义不一致的特征。此外，最近出现了利用Twitter图结构的方法，显示出巨大的竞争力。但是，几乎没有一种方法使文本和图形模式深入融合并进行了交互，以利用优势并了解两种方式的相对重要性。在本文中，我们提出了一个名为BIC的新型模型，该模型使文本和图形模式深入互动并检测到推文语义不一致。具体而言，BIC包含一个文本传播模块，一个图形传播模块，可分别在文本和图形结构上进行机器人检测，以及可证明有效的文本互动模块，以使两者相互作用。此外，BIC还包含一个语义一致性检测模块，以从推文中学习语义一致性信息。广泛的实验表明，我们的框架在全面的Twitter机器人基准上优于竞争基准。我们还证明了拟议的相互作用和语义一致性检测的有效性。

Twitter机器人检测已成为打击错误信息，促进社交媒体节制并保持在线话语的完整性的越来越重要的任务。最先进的机器人检测方法通常利用Twitter网络的图形结构，在面对传统方法无法检测到的新型Twitter机器人时，它们表现出令人鼓舞的性能。但是，现有的Twitter机器人检测数据集很少是基于图形的，即使这些基于图形的数据集也遭受有限的数据集量表，不完整的图形结构以及低注释质量。实际上，缺乏解决这些问题的大规模基于图的Twitter机器人检测基准，严重阻碍了基于图形的机器人检测方法的开发和评估。在本文中，我们提出了Twibot-22，这是一个综合基于图的Twitter机器人检测基准，它显示了迄今为止最大的数据集，在Twitter网络上提供了多元化的实体和关系，并且与现有数据集相比具有更好的注释质量。此外，我们重新实施35代表性的Twitter机器人检测基线，并在包括Twibot-22在内的9个数据集上进行评估，以促进对模型性能和对研究进度的整体了解的公平比较。为了促进进一步的研究，我们将所有实施的代码和数据集巩固到Twibot-22评估框架中，研究人员可以在其中始终如一地评估新的模型和数据集。 Twibot-22 Twitter机器人检测基准和评估框架可在https://twibot22.github.io/上公开获得。

识别新闻媒体的政治观点已成为政治评论的快速增长和日益极化的政治意识形态的重要任务。以前的方法专注于文本内容，留出富裕的社会和政治背景，这在论证挖掘过程中至关重要。为了解决这一限制，我们提出了一种政治透视检测方法，包括外部域知识。具体而言，我们构建一个政治知识图形，以作为特定于域的外部知识。然后我们利用异质信息网络来代表新闻文件，共同模仿新闻文本和外部知识。最后，我们采用关系图神经网络，并作为图形级分类进行政治视角检测。广泛的实验表明，我们的方法始终如一地实现了两个现实世界的透视检测基准的最佳性能。消融研究进一步承担了外部知识的必要性以及我们基于图形的方法的有效性。

研究人员高度利用了原位同步加速器高能X射线粉末衍射（XRD）技术，可以分析功能设备（例如电池材料）或复杂样品环境中材料的晶体结构反应堆）。材料的原子结构可以通过其衍射模式以及详细的分析（例如Rietveld的细化）来识别，该分析表明测量的结构如何偏离理想结构（例如内部应力或缺陷）。对于原位实验，通常在不同条件下（例如绝热条件）在同一样本上收集一系列XRD图像，产生不同的物质状态，或者简单地作为时间的时间连续收集，以跟踪样品的变化超过化学或物理过程。原位实验通常与区域探测器一起进行，收集由理想粉末的衍射环组成的2D图像。根据材料的形式，人们可能会观察到除现实样本及其环境的典型Debye Scherrer环以外的其他特征，例如纹理或优选方向以及2D XRD图像中的单晶衍射点。在这项工作中，我们介绍了对机器学习方法的研究，以快速可靠地识别XRD图像中的单晶衍射点。在XRD图像整合过程中排除伪影的排除允许精确分析感兴趣的粉末衍射环。我们观察到，当用高度多样的数据集对较小的子集进行训练时，梯度提升方法可以始终如一地产生高精度的结果。与常规方法相比，该方法大大减少了识别和分离单晶斑所花费的时间。

有限的作品显示无监督的分布（OOD）方法对复杂的医疗数据的功效。在这里，我们展示了我们无监督的OOD检测算法，SIMCLR-LOF的初步调查结果，以及在医学图像上应用的最近现实方法（SSD）的最新状态。SIMCLR-LOF使用SIMCLR学习语义有意义的功能，如果测试样本是ood的，则使用LOF进行评分。我们在多源国际皮肤成像协作（ISIC）2019数据集上进行了评估，并显示与SSD竞争的结果以及应用于同一数据的最近监督方法。

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.