Masked image modeling (MIM) has shown great promise for self-supervised learning (SSL) yet been criticized for learning inefficiency. We believe the insufficient utilization of training signals should be responsible. To alleviate this issue, we introduce a conceptually simple yet learning-efficient MIM training scheme, termed Disjoint Masking with Joint Distillation (DMJD). For disjoint masking (DM), we sequentially sample multiple masked views per image in a mini-batch with the disjoint regulation to raise the usage of tokens for reconstruction in each image while keeping the masking rate of each view. For joint distillation (JD), we adopt a dual branch architecture to respectively predict invisible (masked) and visible (unmasked) tokens with superior learning targets. Rooting in orthogonal perspectives for training efficiency improvement, DM and JD cooperatively accelerate the training convergence yet not sacrificing the model generalization ability. Concretely, DM can train ViT with half of the effective training epochs (3.7 times less time-consuming) to report competitive performance. With JD, our DMJD clearly improves the linear probing classification accuracy over ConvMAE by 5.8%. On fine-grained downstream tasks like semantic segmentation, object detection, etc., our DMJD also presents superior generalization compared with state-of-the-art SSL methods. The code and model will be made public at https://github.com/mx-mark/DMJD.

The number of international benchmarking competitions is steadily increasing in various fields of machine learning (ML) research and practice. So far, however, little is known about the common practice as well as bottlenecks faced by the community in tackling the research questions posed. To shed light on the status quo of algorithm development in the specific field of biomedical imaging analysis, we designed an international survey that was issued to all participants of challenges conducted in conjunction with the IEEE ISBI 2021 and MICCAI 2021 conferences (80 competitions in total). The survey covered participants' expertise and working environments, their chosen strategies, as well as algorithm characteristics. A median of 72% challenge participants took part in the survey. According to our results, knowledge exchange was the primary incentive (70%) for participation, while the reception of prize money played only a minor role (16%). While a median of 80 working hours was spent on method development, a large portion of participants stated that they did not have enough time for method development (32%). 25% perceived the infrastructure to be a bottleneck. Overall, 94% of all solutions were deep learning-based. Of these, 84% were based on standard architectures. 43% of the respondents reported that the data samples (e.g., images) were too large to be processed at once. This was most commonly addressed by patch-based training (69%), downsampling (37%), and solving 3D analysis tasks as a series of 2D tasks. K-fold cross-validation on the training set was performed by only 37% of the participants and only 50% of the participants performed ensembling based on multiple identical models (61%) or heterogeneous models (39%). 48% of the respondents applied postprocessing steps.

The security of artificial intelligence (AI) is an important research area towards safe, reliable, and trustworthy AI systems. To accelerate the research on AI security, the Artificial Intelligence Security Competition (AISC) was organized by the Zhongguancun Laboratory, China Industrial Control Systems Cyber Emergency Response Team, Institute for Artificial Intelligence, Tsinghua University, and RealAI as part of the Zhongguancun International Frontier Technology Innovation Competition (https://www.zgc-aisc.com/en). The competition consists of three tracks, including Deepfake Security Competition, Autonomous Driving Security Competition, and Face Recognition Security Competition. This report will introduce the competition rules of these three tracks and the solutions of top-ranking teams in each track.

本文介绍了Kings Arena的荣誉，Kings Arena是基于国王荣誉的强化学习（RL）环境，这是世界上最受欢迎的游戏之一。与以前大多数工作中研究的其他环境相比，我们的人对竞争性强化学习提出了新的概括挑战。与对手竞争的一个代理商是一个多代理的问题；它需要概括能力，因为它具有控制和不同的对手竞争的不同目标。我们描述了国王域名荣誉的观察，动作和奖励规范，并提供了一个基于python的开源界面，以与游戏引擎进行通信。我们为纪念国王竞技场的二十个目标英雄提供了各种任务，并为具有可行的计算资源的基于RL的方法提供了初始基线结果。最后，我们展示了国王竞技场的荣誉和对挑战的可能补救措施所面临的概括挑战。所有软件（包括环境级）均可在https://github.com/tencent-ailab/hok_env上公开获得。该文档可在https://aiarena.tencent.com/hok/doc/上获得。

来自计算机断层扫描血管造影（CTA）的肾脏结构分割对于许多计算机辅助的肾脏癌治疗应用至关重要。肾脏解析〜（KIPA 2022）挑战旨在建立细粒度的多结构数据集并改善多个肾脏结构的分割。最近，U-NET主导了医疗图像分割。在KIPA挑战中，我们评估了几个U-NET变体，并选择了最终提交的最佳模型。

联合学习（FL）是一种使用跨设备分布的数据训练模型的技术。差异隐私（DP）为敏感数据提供了正式的隐私保证。我们的目标是在使用FL和DP保护隐私的同时，在计算受限设备上训练大型神经网络语言模型（NNLM）。但是，随着模型大小的增长，引入模型的DP噪声增加，这通常会阻止收敛。我们提出了部分嵌入更新（PEU），这是一种新颖的技术，可以通过降低有效载荷大小来降低噪声。此外，我们采用低级适应（LORA）和噪声对比估计（NCE）来减少计算受限设备上大型模型的记忆需求。这种技术的组合使得可以在保留准确性和隐私的同时训练大型唱机语言模型。

阿尔茨海默氏病（AD）的早期诊断对于促进预防性护理以延迟进一步发展至关重要。本文介绍了建立在痴呆症Pitt copus上的基于最新的构象识别系统以自动检测的开发。通过纳入一组有目的设计的建模功能，包括基于域搜索的自动配置特异性构象异构体超参数除外，还包括基于速度扰动和基于规格的数据增强训练的基线构象体系统可显着改善。使用学习隐藏单位贡献（LHUC）的细粒度老年人的适应性；以及与混合TDNN系统的基于两次通行的跨系统逆转。在48位老年人的评估数据上获得了总体单词错误率（相对34.8％）的总体单词错误率（相对34.8％）。使用最终系统的识别输出来提取文本特征，获得了最佳的基于语音识别的AD检测精度为91.7％。

本文提出了一种基于逆变器的Volt-VAR控制（IB-VVC）的一步两级深度强化学习（OSTC-DRL）方法。首先，考虑IB-VVC可以作为单周期优化问题进行配制，我们将IB-VVC作为单步马尔可夫决策过程而不是标准的Markov决策过程，从而简化了DRL学习任务。然后，我们设计了单步角色批判性DRL方案，该方案是最近DRL算法的简化版本，它可以成功地避免了Q值高估的问题。此外，考虑VVC的两个目标：最大程度地减少功率损耗并消除违反电压，我们利用两个批评家分别近似两个目标的回报。它简化了每个评论家的近似任务，并避免了评论家学习过程中两个目标之间的相互作用效果。 OSTC-DRL方法集成了单步角色批判性DRL方案和两批评技术。基于OSTC-DRL，我们设计了两种集中式DRL算法。此外，我们将OSTC-DRL扩展到分散的IB-VVC的多代理OSTC-DRL并设计两个多代理DRL算法。模拟表明，所提出的OSTC-DRL具有更快的收敛速度和更好的控制性能，并且多代理OSTC-DRL适用于分散的IB-VVC问题。

我们展示了一个新的开源和可扩展知识提取工具包，称为Deepke（基于深度学习的知识提取），支持标准完全监督，低资源少拍摄和文档级方案。 Deepke实现了各种信息提取任务，包括命名实体识别，关系提取和属性提取。使用统一的框架，DeePke允许开发人员和研究人员根据其要求，自定义数据集和模型以从非结构化文本中提取信息。具体而言，DeePke不仅为不同的任务和场景提供了各种功能模块和模型实现，而且还通过一致的框架组织所有组件以维持足够的模块化和可扩展性。此外，我们在\ URL {http://deepke.zjukg.cn/}中介绍一个在线平台，用于实时提取各种任务。 Deepke已经配备了Google Colab教程和初学者的综合文件。我们用演示视频发布\ url {https://github.com/zjunlp/deepke}源代码。

来自结构数据的自然语言生成主要侧重于表面级描述，患有无法控制的内容选择和低保真度。以前的作品利用逻辑表格来促进逻辑知识条件文本生成。虽然取得了显着的进步，但它们是数据饥饿的，这使得通过有限的数据充分利用现实应用程序。为此，本文提出了几次拍摄设置中的逻辑知识条件文本生成的统一框架。只有少量种子逻辑形式（例如，20/100拍摄），我们的方法利用自我训练和样本伪逻辑形式，基于内容和结构一致性。实验结果表明，我们的方法可以比基线获得更好的少量表现。