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Convolutional neural networks (CNNs) have demonstrated strong performance in visual recognition tasks, but their inherent reliance on regular grid structures limits their capacity to model complex topological relationships and non-local…

Computer Vision and Pattern Recognition · Computer Science 2025-08-18 Feiyue Zhao , Zhichao Zhang

Graph Convolutional Network (GCN) has achieved extraordinary success in learning effective task-specific representations of nodes in graphs. However, regarding Heterogeneous Information Network (HIN), existing HIN-oriented GCN methods still…

Machine Learning · Computer Science 2021-09-09 Yaming Yang , Ziyu Guan , Jianxin Li , Wei Zhao , Jiangtao Cui , Quan Wang

Robust cross-subject emotion recognition from multimodal physiological signals remains a challenging problem, primarily due to modality heterogeneity and inter-subject distribution shift. To tackle these challenges, we propose a novel…

Multimedia · Computer Science 2026-01-30 Jiahao Tang , Youjun Li , Yangxuan Zheng , Xiangting Fan , Siyuan Lu , Nuo Zhang , Zi-Gang Huang

Generalised 3D Referring Expression Segmentation (3D-GRES) localizes objects in 3D scenes based on natural language, even when descriptions match multiple or zero targets. Existing methods rely solely on sparse point clouds, lacking rich…

Computer Vision and Pattern Recognition · Computer Science 2026-03-09 Keshen Zhou , Runnan Chen , Mingming Gong , Tongliang Liu

Automated content analysis increasingly supports communication research, yet scaling manual coding into computational pipelines raises concerns about measurement reliability and validity. We introduce a Hierarchical Error Correction (HEC)…

Computation and Language · Computer Science 2025-10-27 Zhilong Zhao , Yindi Liu

Multimodal sentiment analysis has emerged as a critical tool for understanding human emotions across diverse communication channels. While existing methods have made significant strides, they often struggle to effectively differentiate and…

Machine Learning · Computer Science 2025-04-01 Jiahao Qin , Feng Liu , Lu Zong

As an important step towards visual reasoning, visual grounding (e.g., phrase localization, referring expression comprehension/segmentation) has been widely explored Previous approaches to referring expression comprehension (REC) or…

Computer Vision and Pattern Recognition · Computer Science 2021-07-15 Muchen Li , Leonid Sigal

Micro-expression recognition (MER) presents a significant challenge due to the transient and subtle nature of the motion changes involved. In recent years, deep learning methods based on attention mechanisms have made some breakthroughs in…

Computer Vision and Pattern Recognition · Computer Science 2025-01-07 Lijun Zhang , Yifan Zhang , Weicheng Tang , Xinzhi Sun , Xiaomeng Wang , Zhanshan Li

Referring expression grounding is a core problem in visual grounding and is widely used as a diagnostic of spatial grounding and reasoning in vision and language models, yet most prior work focuses on natural images. In contrast, existing…

Computer Vision and Pattern Recognition · Computer Science 2026-05-11 Tianhao Niu , Ziyu Han , Qingfu Zhu , Wanxiang Che

Positron emission tomography (PET) combined with computed tomography (CT) imaging is routinely used in cancer diagnosis and prognosis by providing complementary information. Automatically segmenting tumors in PET/CT images can significantly…

Image and Video Processing · Electrical Eng. & Systems 2024-03-29 Jinpeng Lu , Jingyun Chen , Linghan Cai , Songhan Jiang , Yongbing Zhang

The key of referring expression comprehension lies in capturing the cross-modal visual-linguistic relevance. Existing works typically model the cross-modal relevance in each image, where the anchor object/expression and their positive…

Computer Vision and Pattern Recognition · Computer Science 2023-06-05 Fuhai Chen , Xuri Ge , Xiaoshuai Sun , Yue Gao , Jianzhuang Liu , Fufeng Chen , Wenjie Li

Multi-step retrieval-augmented generation (RAG) has become a widely adopted strategy for enhancing large language models (LLMs) on tasks that demand global comprehension and intensive reasoning. Although many RAG systems incorporate a…

Computation and Language · Computer Science 2026-05-28 Chulun Zhou , Chunkang Zhang , Guoxin Yu , Fandong Meng , Jie Zhou , Wai Lam , Mo Yu

Hyperdimensional Computing (HDC) is a computationally and data-efficient paradigm that acts as a bridge between connectionist and symbolic approaches to artificial intelligence (AI). However, HDC's simplicity poses challenges for encoding…

Machine Learning · Computer Science 2026-05-28 Calvin Yeung , Zhuowen Zou , SungHeon Jeong , Wenjun Huang , Nathaniel D Bastian , Mohsen Imani

In this paper, we address three challenges in utterance-level emotion recognition in dialogue systems: (1) the same word can deliver different emotions in different contexts; (2) some emotions are rarely seen in general dialogues; (3)…

Computation and Language · Computer Science 2019-04-10 Wenxiang Jiao , Haiqin Yang , Irwin King , Michael R. Lyu

In this paper, we propose a novel end-to-end model, namely Single-Stage Grounding network (SSG), to localize the referent given a referring expression within an image. Different from previous multi-stage models which rely on object…

Computer Vision and Pattern Recognition · Computer Science 2018-12-11 Xinpeng Chen , Lin Ma , Jingyuan Chen , Zequn Jie , Wei Liu , Jiebo Luo

Referring expression grounding aims at locating certain objects or persons in an image with a referring expression, where the key challenge is to comprehend and align various types of information from visual and textual domain, such as…

Computer Vision and Pattern Recognition · Computer Science 2019-04-03 Xihui Liu , Zihao Wang , Jing Shao , Xiaogang Wang , Hongsheng Li

Referring expression comprehension (REC) aims to localize the target object described by a natural language expression. Recent advances in vision-language learning have led to significant performance improvements in REC tasks. However,…

Computer Vision and Pattern Recognition · Computer Science 2025-10-07 Kanoko Goto , Takumi Hirose , Mahiro Ukai , Shuhei Kurita , Nakamasa Inoue

Scene text recognition has attracted particular research interest because it is a very challenging problem and has various applications. The most cutting-edge methods are attentional encoder-decoder frameworks that learn the alignment…

Computer Vision and Pattern Recognition · Computer Science 2019-08-27 Xiaoxue Chen , Tianwei Wang , Yuanzhi Zhu , Lianwen Jin , Canjie Luo

Generalized Referring expressions can describe one object, several related objects, or none at all. Existing generalized referring segmentation (GRES) models treat all cases alike, predicting a single binary mask and ignoring how linguistic…

Computer Vision and Pattern Recognition · Computer Science 2026-03-26 E-Ro Nguyen , Hieu Le , Dimitris Samaras , Michael S. Ryoo

Emotion Recognition in Conversation (ERC) has attracted widespread attention in the natural language processing field due to its enormous potential for practical applications. Existing ERC methods face challenges in achieving generalization…

Computation and Language · Computer Science 2023-09-20 Shanglin Lei , Xiaoping Wang , Guanting Dong , Jiang Li , Yingjian Liu