几十年来，手写的中文文本识别（HCTR）一直是一个活跃的研究主题。但是，大多数以前的研究仅关注裁剪文本图像的识别，而忽略了实际应用程序中文本线检测引起的错误。尽管近年来已经提出了一些针对页面文本识别的方法，但它们要么仅限于简单布局，要么需要非常详细的注释，包括昂贵的线条级别甚至角色级边界框。为此，我们建议Pagenet端到端弱监督的页面级HCTR。 Pagenet检测并识别角色并预测其之间的阅读顺序，在处理复杂的布局（包括多方向和弯曲的文本线路）时，这更健壮和灵活。利用所提出的弱监督学习框架，Pagenet只需要对真实数据进行注释。但是，它仍然可以在字符和线级别上输出检测和识别结果，从而避免标记字符和文本线条的界限框的劳动和成本。在五个数据集上进行的广泛实验证明了Pagenet优于现有的弱监督和完全监督的页面级方法。这些实验结果可能会引发进一步的研究，而不是基于连接主义时间分类或注意力的现有方法的领域。源代码可在https://github.com/shannanyinxiang/pagenet上获得。

由于文档的复杂布局，提取文档的信息是一项挑战。大多数以前的研究以一种自我监督的方式开发了多模式预训练的模型。在本文中，我们专注于包含文本和布局信息的单词块的嵌入学习，并提出UTEL，这是具有统一文本和布局预训练的语言模型。具体而言，我们提出了两个预训练任务：布局学习的周围单词预测（SWP），以及对识别不同单词块的单词嵌入（CWE）的对比度学习。此外，我们用1D剪裁的相对位置嵌入了常用的一维位置。这样，掩盖布局语言建模（MLLM）的联合训练和两个新提出的任务可以以统一的方式在语义和空间特征之间进行相互作用。此外，提议的UTEL可以通过删除1D位置嵌入，同时保持竞争性能来处理任意长度的序列。广泛的实验结果表明，UTEL学会了比以前在各种下游任务上的方法更好的联合表示形式，尽管不需要图像模式。代码可在\ url {https://github.com/taosong2019/utel}中获得。

摄像头捕获的文档图像通常会遭受透视和几何变形的影响。在考虑视觉不良美学和OCR系统性能不断恶化时，纠正它们是很大的价值。最近的基于学习的方法将重点放在精确的文档图像上。但是，这可能不足以克服实际挑战，包括具有大边缘区域或没有边缘的文档图像。由于这种不切实际，用户在遇到大边缘区域时努力进行裁剪。同时，没有边距的脱瓦图像仍然是一个无法克服的问题。据我们所知，仍然没有完整有效的管道来纠正野外文档图像。为了解决这个问题，我们提出了一种称为Marior的新方法（删除边缘和\迭代内容纠正）。马里奥（Marior）遵循一种渐进策略，以粗到精细的方式迭代地改善脱水质量和可读性。具体而言，我们将管道分为两个模块：边缘去除模块（MRM）和迭代内容整流模块（ICRM）。首先，我们预测输入图像的分割面膜以删除边缘，从而获得初步结果。然后，我们通过产生密集的位移流以实现内容感知的整流来进一步完善图像。我们可以适应地确定改进的迭代次数。实验证明了我们方法在公共基准测试方面的最先进性能。资源可在https://github.com/zzzhang-jx/marior上获得，以进行进一步比较。

由于其在隐私保护，文档修复和文本编辑方面的各种应用，因此删除文本引起了越来越多的关注。它显示出深度神经网络的重大进展。但是，大多数现有方法通常会为复杂的背景产生不一致的结果。为了解决此问题，我们提出了一个上下文引导的文本删除网络，称为CTRNET。 Ctrnet探索了低级结构和高级判别上下文特征，作为指导背景恢复过程的先验知识。我们进一步提出了具有CNNS和Transformer-编码器的局部全球含量建模（LGCM）块，以捕获局部特征并在全球像素之间建立长期关系。最后，我们将LGCM与特征建模和解码的上下文指南合并。在基准数据集，Scut-Enstext和Scut-Syn上进行的实验表明，CTRNET显着胜过现有的最新方法。此外，关于考试论文的定性实验也证明了我们方法的概括能力。代码和补充材料可在https://github.com/lcy0604/ctrnet上获得。

Weakly-supervised object localization aims to indicate the category as well as the scope of an object in an image given only the image-level labels. Most of the existing works are based on Class Activation Mapping (CAM) and endeavor to enlarge the discriminative area inside the activation map to perceive the whole object, yet ignore the co-occurrence confounder of the object and context (e.g., fish and water), which makes the model inspection hard to distinguish object boundaries. Besides, the use of CAM also brings a dilemma problem that the classification and localization always suffer from a performance gap and can not reach their highest accuracy simultaneously. In this paper, we propose a casual knowledge distillation method, dubbed KD-CI-CAM, to address these two under-explored issues in one go. More specifically, we tackle the co-occurrence context confounder problem via causal intervention (CI), which explores the causalities among image features, contexts, and categories to eliminate the biased object-context entanglement in the class activation maps. Based on the de-biased object feature, we additionally propose a multi-teacher causal distillation framework to balance the absorption of classification knowledge and localization knowledge during model training. Extensive experiments on several benchmarks demonstrate the effectiveness of KD-CI-CAM in learning clear object boundaries from confounding contexts and addressing the dilemma problem between classification and localization performance.

In this paper, a semantic communication framework for image transmission is developed. In the investigated framework, a set of servers cooperatively transmit images to a set of users utilizing semantic communication techniques. To evaluate the performance of studied semantic communication system, a multimodal metric is proposed to measure the correlation between the extracted semantic information and the original image. To meet the ISS requirement of each user, each server must jointly determine the semantic information to be transmitted and the resource blocks (RBs) used for semantic information transmission. We formulate this problem as an optimization problem aiming to minimize each server's transmission latency while reaching the ISS requirement. To solve this problem, a value decomposition based entropy-maximized multi-agent reinforcement learning (RL) is proposed, which enables servers to coordinate for training and execute RB allocation in a distributed manner to approach to a globally optimal performance with less training iterations. Compared to traditional multi-agent RL, the proposed RL improves the valuable action exploration of servers and the probability of finding a globally optimal RB allocation policy based on local observation. Simulation results show that the proposed algorithm can reduce the transmission delay by up to 16.1% compared to traditional multi-agent RL.

New architecture GPUs like A100 are now equipped with multi-instance GPU (MIG) technology, which allows the GPU to be partitioned into multiple small, isolated instances. This technology provides more flexibility for users to support both deep learning training and inference workloads, but efficiently utilizing it can still be challenging. The vision of this paper is to provide a more comprehensive and practical benchmark study for MIG in order to eliminate the need for tedious manual benchmarking and tuning efforts. To achieve this vision, the paper presents MIGPerf, an open-source tool that streamlines the benchmark study for MIG. Using MIGPerf, the authors conduct a series of experiments, including deep learning training and inference characterization on MIG, GPU sharing characterization, and framework compatibility with MIG. The results of these experiments provide new insights and guidance for users to effectively employ MIG, and lay the foundation for further research on the orchestration of hybrid training and inference workloads on MIGs. The code and results are released on https://github.com/MLSysOps/MIGProfiler. This work is still in progress and more results will be published soon.

With the development of technology and sharing economy, Airbnb as a famous short-term rental platform, has become the first choice for many young people to select. The issue of Airbnb's pricing has always been a problem worth studying. While the previous studies achieve promising results, there are exists deficiencies to solve. Such as, (1) the feature attributes of rental are not rich enough; (2) the research on rental text information is not deep enough; (3) there are few studies on predicting the rental price combined with the point of interest(POI) around the house. To address the above challenges, we proposes a multi-source information embedding(MSIE) model to predict the rental price of Airbnb. Specifically, we first selects the statistical feature to embed the original rental data. Secondly, we generates the word feature vector and emotional score combination of three different text information to form the text feature embedding. Thirdly, we uses the points of interest(POI) around the rental house information generates a variety of spatial network graphs, and learns the embedding of the network to obtain the spatial feature embedding. Finally, this paper combines the three modules into multi source rental representations, and uses the constructed fully connected neural network to predict the price. The analysis of the experimental results shows the effectiveness of our proposed model.

Domain adaptive detection aims to improve the generalization of detectors on target domain. To reduce discrepancy in feature distributions between two domains, recent approaches achieve domain adaption through feature alignment in different granularities via adversarial learning. However, they neglect the relationship between multiple granularities and different features in alignment, degrading detection. Addressing this, we introduce a unified multi-granularity alignment (MGA)-based detection framework for domain-invariant feature learning. The key is to encode the dependencies across different granularities including pixel-, instance-, and category-levels simultaneously to align two domains. Specifically, based on pixel-level features, we first develop an omni-scale gated fusion (OSGF) module to aggregate discriminative representations of instances with scale-aware convolutions, leading to robust multi-scale detection. Besides, we introduce multi-granularity discriminators to identify where, either source or target domains, different granularities of samples come from. Note that, MGA not only leverages instance discriminability in different categories but also exploits category consistency between two domains for detection. Furthermore, we present an adaptive exponential moving average (AEMA) strategy that explores model assessments for model update to improve pseudo labels and alleviate local misalignment problem, boosting detection robustness. Extensive experiments on multiple domain adaption scenarios validate the superiority of MGA over other approaches on FCOS and Faster R-CNN detectors. Code will be released at https://github.com/tiankongzhang/MGA.

Although deep learning has made remarkable progress in processing various types of data such as images, text and speech, they are known to be susceptible to adversarial perturbations: perturbations specifically designed and added to the input to make the target model produce erroneous output. Most of the existing studies on generating adversarial perturbations attempt to perturb the entire input indiscriminately. In this paper, we propose ExploreADV, a general and flexible adversarial attack system that is capable of modeling regional and imperceptible attacks, allowing users to explore various kinds of adversarial examples as needed. We adapt and combine two existing boundary attack methods, DeepFool and Brendel\&Bethge Attack, and propose a mask-constrained adversarial attack system, which generates minimal adversarial perturbations under the pixel-level constraints, namely ``mask-constraints''. We study different ways of generating such mask-constraints considering the variance and importance of the input features, and show that our adversarial attack system offers users good flexibility to focus on sub-regions of inputs, explore imperceptible perturbations and understand the vulnerability of pixels/regions to adversarial attacks. We demonstrate our system to be effective based on extensive experiments and user study.