许多具有某种形式听力损失的人认为唇读是他们日常交流的主要模式。但是,寻找学习或提高唇部阅读技能的资源可能具有挑战性。由于对与同行和言语治疗师的直接互动的限制,Covid $ 19 $流行的情况进一步加剧了这一点。如今,Coursera和Udemy等在线MOOCS平台已成为多种技能开发的最有效培训形式。但是,在线口头资源很少,因为创建这样的资源是一个广泛的过程,需要数月的手动努力来记录雇用的演员。由于手动管道,此类平台也受到词汇,支持语言,口音和扬声器的限制,并且使用成本很高。在这项工作中,我们研究了用合成生成的视频代替真实的人说话视频的可能性。合成数据可用于轻松合并更大的词汇,口音甚至本地语言以及许多说话者。我们提出了一条端到端的自动管道,以使用最先进的通话标题视频发电机网络,文本到语音的模型和计算机视觉技术来开发这样的平台。然后,我们使用仔细考虑的口头练习进行了广泛的人类评估,以验证我们设计平台针对现有的唇读平台的质量。我们的研究具体地指出了我们方法开发大规模唇读MOOC平台的潜力,该平台可能会影响数百万听力损失的人。
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双打在电影业中起着必不可少的作用。他们代替了演员在危险的特技场景或同一演员扮演多个角色的场景中代替。后来,Double的脸被演员的脸部和表达式取代,并用昂贵的CGI技术手动表达,耗资数百万美元,花了几个月的时间才能完成。一种自动化,廉价且快速的方法可以是使用旨在将身份从源面部视频(或图像)交换为目标面部视频的面部交换技术。但是,这种方法无法保留演员对场景上下文重要的源表达式。 %对场景必不可少的。在电影院中必不可少的%。为了应对这一挑战,我们介绍了视频对视频(V2V)面部扫描,这是一项可以保留面部交换的新任务(1)源(演员)面部视频的身份和表达方式和(2)背景和目标(双重)视频的姿势。我们提出了一个V2V面部交换系统Cownoff,该系统通过学习强大的混合操作来运行,以根据上述约束来合并两个面部视频。它首先将视频减少到量化的潜在空间,然后将它们混合在减少的空间中。对抗以一种自我监督的方式进行了训练,并坚决应对V2V面部交换的非平凡挑战。如实验部分所示,面对面的表现明显优于定性和定量的交替方法。
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Lipreading或视觉上识别扬声器的嘴巴运动中的演讲是一个具有挑战性和精神上的税务任务。不幸的是,多种医疗条件强迫人们在日常生活中取决于这项技能,以获得必要的沟通。患有肌营养的侧面硬化(ALS)的患者经常丧失肌肉控制,因此它们能够通过唇部运动产生言语并进行通信。现有的大型数据集不会专注于医疗患者或与个人相关的个性化词汇。收集患者的大规模数据集,需要培训Mod-Ern数据饥饿的深度学习模型,然而,非常具有挑战性。在这项工作中,我们将个性化网络提出仅使用单次示例来利用ALS患者。我们依靠综合产生的唇部运动来增加一次性场景。基于变分编码器的域适配技术用于桥接实际综合域间隙。我们的方法显着提高和实现了高度的高度,精度为83.2%,而患者的可比方法可达62.6%。除了评估我们在ALS患者身上的方法外,我们还将其扩展到凭借在唇部运动中广泛依赖的听力损害的人们扩展。
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Object instance segmentation is a key challenge for indoor robots navigating cluttered environments with many small objects. Limitations in 3D sensing capabilities often make it difficult to detect every possible object. While deep learning approaches may be effective for this problem, manually annotating 3D data for supervised learning is time-consuming. In this work, we explore zero-shot instance segmentation (ZSIS) from RGB-D data to identify unseen objects in a semantic category-agnostic manner. We introduce a zero-shot split for Tabletop Objects Dataset (TOD-Z) to enable this study and present a method that uses annotated objects to learn the ``objectness'' of pixels and generalize to unseen object categories in cluttered indoor environments. Our method, SupeRGB-D, groups pixels into small patches based on geometric cues and learns to merge the patches in a deep agglomerative clustering fashion. SupeRGB-D outperforms existing baselines on unseen objects while achieving similar performance on seen objects. Additionally, it is extremely lightweight (0.4 MB memory requirement) and suitable for mobile and robotic applications. The dataset split and code will be made publicly available upon acceptance.
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Modern telecom systems are monitored with performance and system logs from multiple application layers and components. Detecting anomalous events from these logs is key to identify security breaches, resource over-utilization, critical/fatal errors, etc. Current supervised log anomaly detection frameworks tend to perform poorly on new types or signatures of anomalies with few or unseen samples in the training data. In this work, we propose a meta-learning-based log anomaly detection framework (LogAnMeta) for detecting anomalies from sequence of log events with few samples. LoganMeta train a hybrid few-shot classifier in an episodic manner. The experimental results demonstrate the efficacy of our proposed method
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Opinion mining is the branch of computation that deals with opinions, appraisals, attitudes, and emotions of people and their different aspects. This field has attracted substantial research interest in recent years. Aspect-level (called aspect-based opinion mining) is often desired in practical applications as it provides detailed opinions or sentiments about different aspects of entities and entities themselves, which are usually required for action. Aspect extraction and entity extraction are thus two core tasks of aspect-based opinion mining. his paper has presented a framework of aspect-based opinion mining based on the concept of transfer learning. on real-world customer reviews available on the Amazon website. The model has yielded quite satisfactory results in its task of aspect-based opinion mining.
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The foundation models have recently shown excellent performance on a variety of downstream tasks in computer vision. However, most existing vision foundation models simply focus on image-level pretraining and adpation, which are limited for dynamic and complex video-level understanding tasks. To fill the gap, we present general video foundation models, InternVideo, by taking advantage of both generative and discriminative self-supervised video learning. Specifically, InternVideo efficiently explores masked video modeling and video-language contrastive learning as the pretraining objectives, and selectively coordinates video representations of these two complementary frameworks in a learnable manner to boost various video applications. Without bells and whistles, InternVideo achieves state-of-the-art performance on 39 video datasets from extensive tasks including video action recognition/detection, video-language alignment, and open-world video applications. Especially, our methods can obtain 91.1% and 77.2% top-1 accuracy on the challenging Kinetics-400 and Something-Something V2 benchmarks, respectively. All of these results effectively show the generality of our InternVideo for video understanding. The code will be released at https://github.com/OpenGVLab/InternVideo .
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The standard closed-set domain adaptation approaches seek to mitigate distribution discrepancies between two domains under the constraint of both sharing identical label sets. However, in realistic scenarios, finding an optimal source domain with identical label space is a challenging task. Partial domain adaptation alleviates this problem of procuring a labeled dataset with identical label space assumptions and addresses a more practical scenario where the source label set subsumes the target label set. This, however, presents a few additional obstacles during adaptation. Samples with categories private to the source domain thwart relevant knowledge transfer and degrade model performance. In this work, we try to address these issues by coupling variational information and adversarial learning with a pseudo-labeling technique to enforce class distribution alignment and minimize the transfer of superfluous information from the source samples. The experimental findings in numerous cross-domain classification tasks demonstrate that the proposed technique delivers superior and comparable accuracy to existing methods.
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We propose a trust-region stochastic sequential quadratic programming algorithm (TR-StoSQP) to solve nonlinear optimization problems with stochastic objectives and deterministic equality constraints. We consider a fully stochastic setting, where in each iteration a single sample is generated to estimate the objective gradient. The algorithm adaptively selects the trust-region radius and, compared to the existing line-search StoSQP schemes, allows us to employ indefinite Hessian matrices (i.e., Hessians without modification) in SQP subproblems. As a trust-region method for constrained optimization, our algorithm needs to address an infeasibility issue -- the linearized equality constraints and trust-region constraints might lead to infeasible SQP subproblems. In this regard, we propose an \textit{adaptive relaxation technique} to compute the trial step that consists of a normal step and a tangential step. To control the lengths of the two steps, we adaptively decompose the trust-region radius into two segments based on the proportions of the feasibility and optimality residuals to the full KKT residual. The normal step has a closed form, while the tangential step is solved from a trust-region subproblem, to which a solution ensuring the Cauchy reduction is sufficient for our study. We establish the global almost sure convergence guarantee for TR-StoSQP, and illustrate its empirical performance on both a subset of problems in the CUTEst test set and constrained logistic regression problems using data from the LIBSVM collection.
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Recently, Transformer has achieved great success in computer vision. However, it is constrained because the spatial and temporal complexity grows quadratically with the number of large points in 3D object detection applications. Previous point-wise methods are suffering from time consumption and limited receptive fields to capture information among points. In this paper, we propose a two-stage hyperbolic cosine transformer (ChTR3D) for 3D object detection from LiDAR point clouds. The proposed ChTR3D refines proposals by applying cosh-attention in linear computation complexity to encode rich contextual relationships among points. The cosh-attention module reduces the space and time complexity of the attention operation. The traditional softmax operation is replaced by non-negative ReLU activation and hyperbolic-cosine-based operator with re-weighting mechanism. Extensive experiments on the widely used KITTI dataset demonstrate that, compared with vanilla attention, the cosh-attention significantly improves the inference speed with competitive performance. Experiment results show that, among two-stage state-of-the-art methods using point-level features, the proposed ChTR3D is the fastest one.
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