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The task of Stance Detection involves discerning the stance expressed in a text towards a specific subject or target. Prior works have relied on existing transformer models that lack the capability to prioritize targets effectively.…

计算与语言 · 计算机科学 2024-10-10 Krishna Garg , Cornelia Caragea

Transformer-based methods have recently achieved significant success in 3D human pose estimation, owing to their strong ability to model long-range dependencies. However, relying solely on the global attention mechanism is insufficient for…

计算机视觉与模式识别 · 计算机科学 2024-12-30 Guangsheng Xu , Guoyi Zhang , Lejia Ye , Shuwei Gan , Xiaohu Zhang , Xia Yang

Point clouds are unstructured and unordered in the embedded 3D space. In order to produce consistent responses under different permutation layouts, most existing methods aggregate local spatial points through maximum or summation operation.…

计算机视觉与模式识别 · 计算机科学 2020-09-04 Yuan Fang , Chunyan Xu , Zhen Cui , Yuan Zong , Jian Yang

This paper proposes the first pure Transformer structure inversion network called SwinStyleformer, which can compensate for the shortcomings of the CNNs inversion framework by handling long-range dependencies and learning the global…

计算机视觉与模式识别 · 计算机科学 2024-06-21 Jiawei Mao , Guangyi Zhao , Xuesong Yin , Yuanqi Chang

Attention-based models such as transformers have shown outstanding performance on dense prediction tasks, such as semantic segmentation, owing to their capability of capturing long-range dependency in an image. However, the benefit of…

计算机视觉与模式识别 · 计算机科学 2022-07-13 Ashutosh Agarwal , Chetan Arora

Shape assembly, which aims to reassemble separate parts into a complete object, has gained significant interest in recent years. Existing methods primarily rely on networks to predict the poses of individual parts, but often fail to…

计算机视觉与模式识别 · 计算机科学 2024-12-03 Jiahan Li , Chaoran Cheng , Jianzhu Ma , Ge Liu

We introduce the SE(3)-Transformer, a variant of the self-attention module for 3D point clouds and graphs, which is equivariant under continuous 3D roto-translations. Equivariance is important to ensure stable and predictable performance in…

机器学习 · 计算机科学 2020-11-26 Fabian B. Fuchs , Daniel E. Worrall , Volker Fischer , Max Welling

Benefiting from the capability of building inter-dependencies among channels or spatial locations, attention mechanisms have been extensively studied and broadly used in a variety of computer vision tasks recently. In this paper, we…

计算机视觉与模式识别 · 计算机科学 2020-11-09 Diganta Misra , Trikay Nalamada , Ajay Uppili Arasanipalai , Qibin Hou

The self-attention mechanism has been a key factor in the advancement of vision Transformers. However, its quadratic complexity imposes a heavy computational burden in high-resolution scenarios, restricting the practical application.…

计算机视觉与模式识别 · 计算机科学 2025-12-29 Dongchen Han , Tianyu Li , Ziyi Wang , Gao Huang

Transformer, as an alternative to CNN, has been proven effective in many modalities (e.g., texts and images). For 3D point cloud transformers, existing efforts focus primarily on pushing their accuracy to the state-of-the-art level.…

计算机视觉与模式识别 · 计算机科学 2023-07-18 Zhijian Liu , Xinyu Yang , Haotian Tang , Shang Yang , Song Han

This paper presents a novel Fully Binary Point Cloud Transformer (FBPT) model which has the potential to be widely applied and expanded in the fields of robotics and mobile devices. By compressing the weights and activations of a 32-bit…

计算机视觉与模式识别 · 计算机科学 2024-05-10 Zhixing Hou , Yuzhang Shang , Yan Yan

Self-supervised representation learning for point cloud has demonstrated effectiveness in improving pre-trained model performance across diverse tasks. However, as pre-trained models grow in complexity, fully fine-tuning them for downstream…

计算机视觉与模式识别 · 计算机科学 2025-05-28 Song Wang , Xiaolu Liu , Lingdong Kong , Jianyun Xu , Chunyong Hu , Gongfan Fang , Wentong Li , Jianke Zhu , Xinchao Wang

Recent advances in self-supervised learning (SSL) for point clouds have substantially improved 3D scene understanding without human annotations. Existing approaches emphasize semantic awareness by enforcing feature consistency across…

计算机视觉与模式识别 · 计算机科学 2026-04-01 Bin Yang , Mohamed Abdelsamad , Miao Zhang , Alexandru Paul Condurache

Effective learning of spatial-temporal information within a point cloud sequence is highly important for many down-stream tasks such as 4D semantic segmentation and 3D action recognition. In this paper, we propose a novel framework named…

计算机视觉与模式识别 · 计算机科学 2021-10-20 Yimin Wei , Hao Liu , Tingting Xie , Qiuhong Ke , Yulan Guo

Effectively preserving and encoding structure features from objects in irregular and sparse LiDAR points is a key challenge to 3D object detection on point cloud. Recently, Transformer has demonstrated promising performance on many 2D and…

计算机视觉与模式识别 · 计算机科学 2022-09-07 Xiaoyu Feng , Heming Du , Yueqi Duan , Yongpan Liu , Hehe Fan

The recent surge in 3D data acquisition has spurred the development of geometric deep learning models for point cloud processing, boosted by the remarkable success of transformers in natural language processing. While point cloud…

计算机视觉与模式识别 · 计算机科学 2024-01-29 Alessandro Baiocchi , Indro Spinelli , Alessandro Nicolosi , Simone Scardapane

Fine-grained geometry, captured by aggregation of point features in local regions, is crucial for object recognition and scene understanding in point clouds. Nevertheless, existing preeminent point cloud backbones usually incorporate…

计算机视觉与模式识别 · 计算机科学 2021-11-30 Jie Wang , Jianan Li , Lihe Ding , Ying Wang , Tingfa Xu

Point Transformers are near state-of-the-art models for classification, segmentation, and detection tasks on Point Cloud data. They utilize a self attention based mechanism to model large range spatial dependencies between multiple point…

计算机视觉与模式识别 · 计算机科学 2024-04-02 Kartik Gupta , Rahul Vippala , Sahima Srivastava

We propose a novel scene flow estimation approach to capture and infer 3D motions from point clouds. Estimating 3D motions for point clouds is challenging, since a point cloud is unordered and its density is significantly non-uniform. Such…

计算机视觉与模式识别 · 计算机科学 2022-03-10 Bing Li , Cheng Zheng , Silvio Giancola , Bernard Ghanem

Multimodal remote sensing data, including spectral and lidar or photogrammetry, is crucial for achieving satisfactory land-use / land-cover classification results in urban scenes. So far, most studies have been conducted in a 2D context.…

计算机视觉与模式识别 · 计算机科学 2025-11-25 Aldino Rizaldy , Richard Gloaguen , Fabian Ewald Fassnacht , Pedram Ghamisi