图像文本检索（ITR）在桥接视觉和舌形式方面具有挑战性。对比度学习已被大多数先前的艺术所采用。除了有限的负面图像文本对外，约束学习的能力受到手动加权负对以及对外部知识的不认识的限制。在本文中，我们提出了新型耦合多样性敏感的动量约束学习（编码器），以改善跨模式表示。首先，发明了一种新颖的多样性对比度学习（DCL）体系结构。我们引入了两种模式的动态词典，以扩大图像文本对的比例，并且通过自适应负面对加权实现多样性敏感性。此外，编码器设计了两个分支。一个人从图像/文本中学习实例级的嵌入式，它还基于其嵌入为其输入图像/文本生成伪在线聚类标签。同时，另一个分支学会从常识知识图中查询以形成两种模式的概念级描述符。之后，两个分支都利用DCL来对齐跨模式嵌入空间，而额外的伪聚类标签预测损失则用于促进第二个分支的概念级表示学习。在两个流行的基准测试（即Mscoco和Flicker30k）上进行的广泛实验，验证编码器的表现明显优于最先进的方法。

尽管语义通信对大量任务表现出令人满意的性能，但语义噪声和系统的鲁棒性的影响尚未得到很好的研究。语义噪声是指预期的语义符号和接收到的语义符号之间的误导性，从而导致任务失败。在本文中，我们首先提出了一个框架，用于稳健的端到端语义通信系统来对抗语义噪声。特别是，我们分析了样品依赖性和样本无关的语义噪声。为了打击语义噪声，开发了具有重量扰动的对抗训练，以在训练数据集中纳入带有语义噪声的样品。然后，我们建议掩盖一部分输入，在该输入中，语义噪声经常出现，并通过噪声相关的掩蔽策略设计蒙版vector量化量化的量化自动编码器（VQ-VAE）。我们使用发射器共享的离​​散代码簿和接收器用于编码功能表示。为了进一步提高系统鲁棒性，我们开发了一个功能重要性模块（FIM），以抑制与噪声相关和任务无关的功能。因此，发射器只需要在代码簿中传输这些重要的任务相关功能的索引即可。仿真结果表明，所提出的方法可以应用于许多下游任务，并显着提高针对语义噪声的鲁棒性，并显着减少了传输开销。

深度无形的神经网络（NNS）受到了极大的关注，因为它们的复杂性相对较低。通常，这些深度折​​叠的NN仅限于所有输入的固定深度。但是，收敛所需的最佳层随着不同的输入而变化。在本文中，我们首先开发了一个深层确定性策略梯度（DDPG）驱动的深度无折叠的框架，并针对不同输入进行自适应深度，在该框架中，DDPG学习了可训练的深度NN的可训练参数，而不是由随机梯度更新下降算法直接。具体而言，DDPG的状态，动作和状态过渡分别将优化变量，可训练的参数和架构分别设计为DDPG的状态，动作和状态过渡。然后，使用此框架来处理大量多输入多输出系统中的通道估计问题。具体而言，首先，我们通过离网基准制定了通道估计问题，并开发了稀疏的贝叶斯学习（SBL）基于基于的算法来解决它。其次，将基于SBL的算法展开为一组带有一组可训练参数的层结构。第三，采用了提出的DDPG驱动的深度解释框架来基于基于SBL的算法的展开结构来解决此通道估计问题。为了实现自适应深度，我们设计了停止分数以指示何时停止，这是通道重建误差的函数。此外，提出的框架被扩展到实现一般深度神经网络（DNNS）的适应性深度。仿真结果表明，所提出的算法的表现优于固定深度的常规优化算法和DNN，层数量大多。

Developing autonomous vehicles (AVs) helps improve the road safety and traffic efficiency of intelligent transportation systems (ITS). Accurately predicting the trajectories of traffic participants is essential to the decision-making and motion planning of AVs in interactive scenarios. Recently, learning-based trajectory predictors have shown state-of-the-art performance in highway or urban areas. However, most existing learning-based models trained with fixed datasets may perform poorly in continuously changing scenarios. Specifically, they may not perform well in learned scenarios after learning the new one. This phenomenon is called "catastrophic forgetting". Few studies investigate trajectory predictions in continuous scenarios, where catastrophic forgetting may happen. To handle this problem, first, a novel continual learning (CL) approach for vehicle trajectory prediction is proposed in this paper. Then, inspired by brain science, a dynamic memory mechanism is developed by utilizing the measurement of traffic divergence between scenarios, which balances the performance and training efficiency of the proposed CL approach. Finally, datasets collected from different locations are used to design continual training and testing methods in experiments. Experimental results show that the proposed approach achieves consistently high prediction accuracy in continuous scenarios without re-training, which mitigates catastrophic forgetting compared to non-CL approaches. The implementation of the proposed approach is publicly available at https://github.com/BIT-Jack/D-GSM

The goal of multimodal abstractive summarization (MAS) is to produce a concise summary given the multimodal data (text and vision). Existing studies on MAS mainly focus on how to effectively use the extracted visual features, having achieved impressive success on the high-resource English dataset. However, less attention has been paid to the quality of the visual features to the summary, which may limit the model performance especially in the low- and zero-resource scenarios. In this paper, we propose to improve the summary quality through summary-oriented visual features. To this end, we devise two auxiliary tasks including \emph{vision to summary task} and \emph{masked image modeling task}. Together with the main summarization task, we optimize the MAS model via the training objectives of all these tasks. By these means, the MAS model can be enhanced by capturing the summary-oriented visual features, thereby yielding more accurate summaries. Experiments on 44 languages, covering mid-high-, low-, and zero-resource scenarios, verify the effectiveness and superiority of the proposed approach, which achieves state-of-the-art performance under all scenarios.

Given a document in a source language, cross-lingual summarization (CLS) aims at generating a concise summary in a different target language. Unlike monolingual summarization (MS), naturally occurring source-language documents paired with target-language summaries are rare. To collect large-scale CLS samples, existing datasets typically involve translation in their creation. However, the translated text is distinguished from the text originally written in that language, i.e., translationese. Though many efforts have been devoted to CLS, none of them notice the phenomenon of translationese. In this paper, we first confirm that the different approaches to constructing CLS datasets will lead to different degrees of translationese. Then we design systematic experiments to investigate how translationese affects CLS model evaluation and performance when it appears in source documents or target summaries. In detail, we find that (1) the translationese in documents or summaries of test sets might lead to the discrepancy between human judgment and automatic evaluation; (2) the translationese in training sets would harm model performance in the real scene; (3) though machine-translated documents involve translationese, they are very useful for building CLS systems on low-resource languages under specific training strategies. Furthermore, we give suggestions for future CLS research including dataset and model developments. We hope that our work could let researchers notice the phenomenon of translationese in CLS and take it into account in the future.

This paper introduces the joint submission of the Beijing Jiaotong University and WeChat AI to the WMT'22 chat translation task for English-German. Based on the Transformer, we apply several effective variants. In our experiments, we utilize the pre-training-then-fine-tuning paradigm. In the first pre-training stage, we employ data filtering and synthetic data generation (i.e., back-translation, forward-translation, and knowledge distillation). In the second fine-tuning stage, we investigate speaker-aware in-domain data generation, speaker adaptation, prompt-based context modeling, target denoising fine-tuning, and boosted self-COMET-based model ensemble. Our systems achieve 0.810 and 0.946 COMET scores. The COMET scores of English-German and German-English are the highest among all submissions.

隐式神经表示显示了3D场景重建的有希望的潜力。最近的工作将其应用于自主3D重建，通过学习信息获得图路径计划的信息增益。有效，信息增益的计算很昂贵，并且与使用体积表示相比，使用隐式表示为3D点进行碰撞检查要慢得多。在本文中，我们建议1）利用神经网络作为信息增益场的隐式函数近似器，以及2）将隐式细粒表示与粗量表示形式结合起来，以提高效率。随着效率的提高，我们提出了基于基于图的计划者的新型信息路径计划。我们的方法表明，与具有隐性和明确表示的自主重建相比，重建质量和计划效率的显着提高。我们将该方法部署在真正的无人机上，结果表明我们的方法可以计划信息意见并以高质量重建场景。

广告视频编辑旨在将广告视频自动编辑为较短的视频，同时保留广告商传达的连贯内容和关键信息。它主要包含两个阶段：视频细分和段组合。现有方法在视频分割阶段表现良好，但遭受了对额外繁琐模型的依赖性问题，并且在细分组合阶段的性能差。为了解决这些问题，我们提出了M-SAN（多模式段组合网络），该网络可以执行高效且连贯的段组合任务。它利用从段中提取的多模式表示形式，并遵循带有注意机制的编码器ptr-decoder ptr-net框架。重要性补偿奖励是为培训M-SAN设计的。我们在广告客户收集的丰富广告方案下，在ADS-1K数据集上使用1000多个视频进行实验。为了评估这些方法，我们提出了一个统一的imp-coh@Time，该指标可以全面评估同时评估产出的重要性，相干性和持续时间。实验结果表明，我们的方法比随机选择和公制上的先前方法更好的性能。消融实验进一步验证了多模式表示和重要性互动的奖励可显着改善性能。 ADS-1K数据集可用：https：//github.com/yunlong10/ads-1k

谷仓（基准自动驾驶机器人导航）挑战在宾夕法尼亚州费城的2022年IEEE国际机器人和自动化国际会议（ICRA 2022）举行。挑战的目的是评估最先进的自动地面导航系统，以安全有效的方式将机器人通过高度约束的环境移动。具体而言，任务是将标准化的差分驱动地面机器人从预定义的开始位置导航到目标位置，而不会与模拟和现实世界中的任何障碍相撞。来自世界各地的五支球队参加了合格的模拟比赛，其中三支受邀在费城会议中心的一组身体障碍课程中相互竞争。竞争结果表明，尽管表面上显得简单，即使对于经验丰富的机器人主义者来说，在高度约束空间中的自主地面导航实际上远非解决问题。在本文中，我们讨论了挑战，前三名获胜团队所使用的方法以及学到的教训以指导未来的研究。