Decompilation aims to transform a low-level program language (LPL) (eg., binary file) into its functionally-equivalent high-level program language (HPL) (e.g., C/C++). It is a core technology in software security, especially in vulnerability discovery and malware analysis. In recent years, with the successful application of neural machine translation (NMT) models in natural language processing (NLP), researchers have tried to build neural decompilers by borrowing the idea of NMT. They formulate the decompilation process as a translation problem between LPL and HPL, aiming to reduce the human cost required to develop decompilation tools and improve their generalizability. However, state-of-the-art learning-based decompilers do not cope well with compiler-optimized binaries. Since real-world binaries are mostly compiler-optimized, decompilers that do not consider optimized binaries have limited practical significance. In this paper, we propose a novel learning-based approach named NeurDP, that targets compiler-optimized binaries. NeurDP uses a graph neural network (GNN) model to convert LPL to an intermediate representation (IR), which bridges the gap between source code and optimized binary. We also design an Optimized Translation Unit (OTU) to split functions into smaller code fragments for better translation performance. Evaluation results on datasets containing various types of statements show that NeurDP can decompile optimized binaries with 45.21% higher accuracy than state-of-the-art neural decompilation frameworks.
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Audio-visual approaches involving visual inputs have laid the foundation for recent progress in speech separation. However, the optimization of the concurrent usage of auditory and visual inputs is still an active research area. Inspired by the cortico-thalamo-cortical circuit, in which the sensory processing mechanisms of different modalities modulate one another via the non-lemniscal sensory thalamus, we propose a novel cortico-thalamo-cortical neural network (CTCNet) for audio-visual speech separation (AVSS). First, the CTCNet learns hierarchical auditory and visual representations in a bottom-up manner in separate auditory and visual subnetworks, mimicking the functions of the auditory and visual cortical areas. Then, inspired by the large number of connections between cortical regions and the thalamus, the model fuses the auditory and visual information in a thalamic subnetwork through top-down connections. Finally, the model transmits this fused information back to the auditory and visual subnetworks, and the above process is repeated several times. The results of experiments on three speech separation benchmark datasets show that CTCNet remarkably outperforms existing AVSS methods with considerablely fewer parameters. These results suggest that mimicking the anatomical connectome of the mammalian brain has great potential for advancing the development of deep neural networks. Project repo is https://github.com/JusperLee/CTCNet.
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This paper investigates a phenomenon where query-based object detectors mispredict at the last decoding stage while predicting correctly at an intermediate stage. We review the training process and attribute the overlooked phenomenon to two limitations: lack of training emphasis and cascading errors from decoding sequence. We design and present Selective Query Recollection (SQR), a simple and effective training strategy for query-based object detectors. It cumulatively collects intermediate queries as decoding stages go deeper and selectively forwards the queries to the downstream stages aside from the sequential structure. Such-wise, SQR places training emphasis on later stages and allows later stages to work with intermediate queries from earlier stages directly. SQR can be easily plugged into various query-based object detectors and significantly enhances their performance while leaving the inference pipeline unchanged. As a result, we apply SQR on Adamixer, DAB-DETR, and Deformable-DETR across various settings (backbone, number of queries, schedule) and consistently brings 1.4-2.8 AP improvement.
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我们提出了一种新颖的方法来重新定位或放置识别,这是许多机器人技术,自动化和AR应用中要解决的基本问题。我们不依靠通常不稳定的外观信息,而是考虑以局部对象形式给出参考图的情况。我们的本地化框架依赖于3D语义对象检测,然后与地图中的对象关联。可能的配对关联集是基于评估空间兼容性的合并度量的层次聚类而生长的。后者特别使用有关​​相对对象配置的信息,该信息相对于全局转换是不变的。随着相机逐步探索环境并检测更多对象,关联集将进行更新和扩展。我们在几种具有挑战性的情况下测试我们的算法,包括动态场景,大型视图变化以及具有重复实例的场景。我们的实验表明,我们的方法在鲁棒性和准确性方面都优于先前的艺术。
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电子商务在通过互联网增强商人的能力方面已经大有帮助。为了有效地存储商品并正确安排营销资源,对他们来说,进行准确的总商品价值(GMV)预测非常重要。但是,通过数字化数据的缺乏进行准确的预测是不算平的。在本文中,我们提出了一个解决方案,以更好地预测Apay应用程序内的GMV。得益于Graph Neural网络(GNN),它具有很好的关联不同实体以丰富信息的能力,我们提出了Gaia,Gaia是一个图形神经网络(GNN)模型,具有时间移动意识注意。Gaia利用相关的电子销售商的销售信息,并根据时间依赖性学习邻居相关性。通过测试Apleay的真实数据集并与其他基线进行比较,Gaia表现出最佳性能。盖亚(Gaia)部署在模拟的在线环境中,与基线相比,这也取得了很大的进步。
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回声状态网络(ESN)是一种经常性神经网络,由固定的储层组成,其中神经元随机连接和递归连接,仅通过训练输出连接权重才能获得所需的输出。一阶减少和控制误差(力)学习是一种在线监督培训方法,可以将ESN的混乱活动变成指定的活动模式。本文提出了一种基于递归最小二乘的复合力学习方法,以训练初始活动自发性混乱的ESN,其中采用动态回归器扩展和内存数据开发的复合学习技术来增强参数收敛。提出的方法应用于基准问题,以预测Mackey-Glass系统产生的混沌时间序列,而数值结果表明,与现有方法相比,它显着改善了学习和预测性能。
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超声(US)广泛用于实时成像,无辐射和便携性的优势。在临床实践中,分析和诊断通常依赖于美国序列,而不是单个图像来获得动态的解剖信息。对于新手来说,这是一项挑战,因为使用患者的足够视频进行练习是临床上不可行的。在本文中,我们提出了一个新颖的框架,以综合高保真美国视频。具体而言,合成视频是通过基于给定驾驶视频的动作来动画源内容图像来生成的。我们的亮点是三倍。首先,利用自我监督学习的优势,我们提出的系统以弱监督的方式进行了培训,以进行关键点检测。然后,这些关键点为处理美国视频中的复杂动态动作提供了重要信息。其次,我们使用双重解码器将内容和纹理学习解除,以有效地减少模型学习难度。最后,我们采用了对抗性训练策略,并采用了GAN损失,以进一步改善生成的视频的清晰度,从而缩小了真实和合成视频之间的差距。我们在具有高动态运动的大型内部骨盆数据集上验证我们的方法。广泛的评估指标和用户研究证明了我们提出的方法的有效性。
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图形离群值检测是一项具有许多应用程序的新兴但至关重要的机器学习任务。尽管近年来算法扩散,但缺乏标准和统一的绩效评估设置限制了它们在现实世界应用中的进步和使用。为了利用差距,我们(据我们所知)(据我们所知)第一个全面的无监督节点离群值检测基准为unod,并带有以下亮点:(1)评估骨架从经典矩阵分解到最新图形神经的骨架的14个方法网络; (2)在现实世界数据集上使用不同类型的注射异常值和自然异常值对方法性能进行基准测试; (3)通过在不同尺度的合成图上使用运行时和GPU存储器使用算法的效率和可扩展性。基于广泛的实验结果的分析,我们讨论了当前渠道方法的利弊,并指出了多个关键和有希望的未来研究方向。
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近年来,面部语义指导(包括面部地标,面部热图和面部解析图)和面部生成对抗网络(GAN)近年来已广泛用于盲面修复(BFR)。尽管现有的BFR方法在普通案例中取得了良好的性能,但这些解决方案在面对严重降解和姿势变化的图像时具有有限的弹性(例如,在现实世界情景中看起来右,左看,笑等)。在这项工作中,我们提出了一个精心设计的盲人面部修复网络,具有生成性面部先验。所提出的网络主要由非对称编解码器和stylegan2先验网络组成。在非对称编解码器中,我们采用混合的多路残留块(MMRB)来逐渐提取输入图像的弱纹理特征,从而可以更好地保留原始面部特征并避免过多的幻想。 MMRB也可以在其他网络中插入插件。此外,多亏了StyleGAN2模型的富裕和多样化的面部先验,我们采用了微调的方法来灵活地恢复自然和现实的面部细节。此外,一种新颖的自我监督训练策略是专门设计用于面部修复任务的,以使分配更接近目标并保持训练稳定性。关于合成和现实世界数据集的广泛实验表明,我们的模型在面部恢复和面部超分辨率任务方面取得了卓越的表现。
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从非结构化的3D点云学习密集点语义,虽然是一个逼真的问题,但在文献中探讨了逼真的问题。虽然现有的弱监督方法可以仅具有小数点的点级注释来有效地学习语义,但我们发现香草边界箱级注释也是大规模3D点云的语义分割信息。在本文中,我们介绍了一个神经结构,称为Box2Seg,以了解3D点云的点级语义,具有边界盒级监控。我们方法的关键是通过探索每个边界框内和外部的几何和拓扑结构来生成准确的伪标签。具体地,利用基于注意的自我训练(AST)技术和点类激活映射(PCAM)来估计伪标签。通过伪标签进行进一步培训并精制网络。在两个大型基准测试中的实验,包括S3DIS和Scannet,证明了该方法的竞争性能。特别是,所提出的网络可以培训,甚至是均匀的空缺边界箱级注释和子环级标签。
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