从文本中提取方面 - 极性对是细粒度情绪分析的重要任务。虽然该任务的现有方法已经获得了许多进展,但它们在文本中捕获方面 - 极性对之间的关​​系,从而降低提取性能。此外,现有的最先进的方法,即基于令牌的SE静态标记和基于跨度的分类,具有它们自己的缺陷,例如极性不一致,从前者中单独标记标记和后者的异构分类导致的极性不一致。其中与方面相关和极性相关的标签混合。为了弥补上述缺陷,从最近的关系提取的进步开始,我们建议直接从具有关系提取技术的文本生成方向极性对,关于方面是各方面是才能的一致关系相应的极性是关系。基于该角度来看,我们介绍了一种位置和方面感知的序列2序列模型,用于宽高学对的关节提取。该模型的特征在于,它不仅通过序列解码中的序列解码而在文本中捕获的宽度极性对之间的关​​系,而且通过位置和方面感知的关注的方面和极性之间的相关性。在三个基准数据集上执行的实验,表明我们的模型优于现有的最先进的方法,对其进行了重大信息。
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最近的跟踪器采用变压器来组合或替换广泛使用的重新NET作为其新的骨干网络。尽管他们的跟踪器在常规场景中运行良好,但是他们只是将2D功能弄平为序列,以更好地匹配变压器。我们认为这些操作忽略了目标对象的空间先验,这可能仅导致次优结果。此外,许多作品表明,自我注意力实际上是一个低通滤波器,它与输入功能或键/查询无关。也就是说,它可能会抑制输入功能的高频组成部分,并保留甚至放大低频信息。为了解决这些问题,在本文中,我们提出了一个统一的空间频率变压器,该变压器同时建模高斯空间先验和高频强调(GPHA)。具体而言,高斯空间先验是使用双重多层感知器(MLP)生成的,并注入了通过将查询和自我注意的关键特征乘产生的相似性矩阵。输出将被馈入软磁层,然后分解为两个组件,即直接信号和高频信号。低通和高通的分支被重新缩放并组合以实现全通,因此,高频特征将在堆叠的自发层中得到很好的保护。我们进一步将空间频率变压器整合到暹罗跟踪框架中,并提出一种新颖的跟踪算法,称为SFTRANST。基于跨级融合的SwintransFormer被用作骨干,还使用多头交叉意见模块来增强搜索和模板功能之间的相互作用。输出将被馈入跟踪头以进行目标定位。短期和长期跟踪基准的广泛实验都证明了我们提出的框架的有效性。
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使用机器学习的数据驱动的范例在图像处理和通信中变得普遍存在。特别地,图像到图像(I2I)转换是一种通用和广泛使用的图像处理问题的方法,例如图像合成,样式传输和图像恢复。同时,神经图像压缩被出现为可视通信中传统编码方法的数据驱动替代方法。在本文中,我们将这两种范例的组合与联合I2I压缩和翻译框架一起研究,重点是多域图像合成。首先通过将量化和熵编码集成到I2I翻译框架(即i2iCodec)中提出分布式I2I转换。在实践中,也希望图像压缩功能(即自动编码),需要与常规图像编解码器一起部署。因此,我们进一步提出了一个统一的框架,其允许在单个编解码器中进行平移和自动编码功能。在翻译/压缩模式下调节的自适应残差块提供灵活的适应性对所需功能。实验表明,使用单个模型的I2I平移和图像压缩均有前景。
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In this chapter, we review and discuss the transformation of AI technology in HCI/UX work and assess how AI technology will change how we do the work. We first discuss how AI can be used to enhance the result of user research and design evaluation. We then discuss how AI technology can be used to enhance HCI/UX design. Finally, we discuss how AI-enabled capabilities can improve UX when users interact with computing systems, applications, and services.
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An increasing number of public datasets have shown a marked clinical impact on assessing anatomical structures. However, each of the datasets is small, partially labeled, and rarely investigates severe tumor subjects. Moreover, current models are limited to segmenting specific organs/tumors, which can not be extended to novel domains and classes. To tackle these limitations, we introduce embedding learned from Contrastive Language-Image Pre-training (CLIP) to segmentation models, dubbed the CLIP-Driven Universal Model. The Universal Model can better segment 25 organs and 6 types of tumors by exploiting the semantic relationship between abdominal structures. The model is developed from an assembly of 14 datasets with 3,410 CT scans and evaluated on 6,162 external CT scans from 3 datasets. We rank first on the public leaderboard of the Medical Segmentation Decathlon (MSD) and achieve the state-of-the-art results on Beyond The Cranial Vault (BTCV). Compared with dataset-specific models, the Universal Model is computationally more efficient (6x faster), generalizes better to CT scans from varying sites, and shows stronger transfer learning performance on novel tasks. The design of CLIP embedding enables the Universal Model to be easily extended to new classes without catastrophically forgetting the previously learned classes.
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Recent advances in self-supervised learning (SSL) in computer vision are primarily comparative, whose goal is to preserve invariant and discriminative semantics in latent representations by comparing siamese image views. However, the preserved high-level semantics do not contain enough local information, which is vital in medical image analysis (e.g., image-based diagnosis and tumor segmentation). To mitigate the locality problem of comparative SSL, we propose to incorporate the task of pixel restoration for explicitly encoding more pixel-level information into high-level semantics. We also address the preservation of scale information, a powerful tool in aiding image understanding but has not drawn much attention in SSL. The resulting framework can be formulated as a multi-task optimization problem on the feature pyramid. Specifically, we conduct multi-scale pixel restoration and siamese feature comparison in the pyramid. In addition, we propose non-skip U-Net to build the feature pyramid and develop sub-crop to replace multi-crop in 3D medical imaging. The proposed unified SSL framework (PCRLv2) surpasses its self-supervised counterparts on various tasks, including brain tumor segmentation (BraTS 2018), chest pathology identification (ChestX-ray, CheXpert), pulmonary nodule detection (LUNA), and abdominal organ segmentation (LiTS), sometimes outperforming them by large margins with limited annotations.
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We present Muse, a text-to-image Transformer model that achieves state-of-the-art image generation performance while being significantly more efficient than diffusion or autoregressive models. Muse is trained on a masked modeling task in discrete token space: given the text embedding extracted from a pre-trained large language model (LLM), Muse is trained to predict randomly masked image tokens. Compared to pixel-space diffusion models, such as Imagen and DALL-E 2, Muse is significantly more efficient due to the use of discrete tokens and requiring fewer sampling iterations; compared to autoregressive models, such as Parti, Muse is more efficient due to the use of parallel decoding. The use of a pre-trained LLM enables fine-grained language understanding, translating to high-fidelity image generation and the understanding of visual concepts such as objects, their spatial relationships, pose, cardinality etc. Our 900M parameter model achieves a new SOTA on CC3M, with an FID score of 6.06. The Muse 3B parameter model achieves an FID of 7.88 on zero-shot COCO evaluation, along with a CLIP score of 0.32. Muse also directly enables a number of image editing applications without the need to fine-tune or invert the model: inpainting, outpainting, and mask-free editing. More results are available at https://muse-model.github.io
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Feature selection helps reduce data acquisition costs in ML, but the standard approach is to train models with static feature subsets. Here, we consider the dynamic feature selection (DFS) problem where a model sequentially queries features based on the presently available information. DFS is often addressed with reinforcement learning (RL), but we explore a simpler approach of greedily selecting features based on their conditional mutual information. This method is theoretically appealing but requires oracle access to the data distribution, so we develop a learning approach based on amortized optimization. The proposed method is shown to recover the greedy policy when trained to optimality and outperforms numerous existing feature selection methods in our experiments, thus validating it as a simple but powerful approach for this problem.
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Human parsing aims to partition humans in image or video into multiple pixel-level semantic parts. In the last decade, it has gained significantly increased interest in the computer vision community and has been utilized in a broad range of practical applications, from security monitoring, to social media, to visual special effects, just to name a few. Although deep learning-based human parsing solutions have made remarkable achievements, many important concepts, existing challenges, and potential research directions are still confusing. In this survey, we comprehensively review three core sub-tasks: single human parsing, multiple human parsing, and video human parsing, by introducing their respective task settings, background concepts, relevant problems and applications, representative literature, and datasets. We also present quantitative performance comparisons of the reviewed methods on benchmark datasets. Additionally, to promote sustainable development of the community, we put forward a transformer-based human parsing framework, providing a high-performance baseline for follow-up research through universal, concise, and extensible solutions. Finally, we point out a set of under-investigated open issues in this field and suggest new directions for future study. We also provide a regularly updated project page, to continuously track recent developments in this fast-advancing field: https://github.com/soeaver/awesome-human-parsing.
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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.
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