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Scene graphs are semantic abstraction of images that encourage visual understanding and reasoning. However, the performance of Scene Graph Generation (SGG) is unsatisfactory when faced with biased data in real-world scenarios. Conventional…

Computer Vision and Pattern Recognition · Computer Science 2021-06-09 Jing Yu , Yuan Chai , Yujing Wang , Yue Hu , Qi Wu

Scene graphs (SGs) represent objects and their relationships as structured graphs, enabling applications in image generation, robotics, and 3D understanding. Recent work suggests that conditioning image generation on scene graphs improves…

Computer Vision and Pattern Recognition · Computer Science 2026-05-12 Rajalaxmi Rajagopalan , Romit Roy Choudhury

Open-vocabulary scene graph generation (SGG) aims to describe visual scenes with flexible relation phrases beyond a fixed predicate set. Existing methods usually treat annotated triplets as positives and all unannotated object-pair…

Computer Vision and Pattern Recognition · Computer Science 2026-05-27 Amir Hosseini , Sara Farahani , Xinyi Li , Suiyang Guang

Scene Graph Generation (SGG) provides basic language representation of visual scenes, requiring models to grasp complex and diverse semantics between objects. This complexity and diversity in SGG leads to underrepresentation, where parts of…

Computer Vision and Pattern Recognition · Computer Science 2025-04-30 Yuxuan Wang , Xiaoyuan Liu

Heterogeneous graph neural networks (GNNs) achieve strong performance on node classification tasks in a semi-supervised learning setting. However, as in the simpler homogeneous GNN case, message-passing-based heterogeneous GNNs may struggle…

Machine Learning · Computer Science 2022-10-24 Hongjoon Ahn , Yongyi Yang , Quan Gan , Taesup Moon , David Wipf

Zero-shot and few-shot learning aim to improve generalization to unseen concepts, which are promising in many realistic scenarios. Due to the lack of data in unseen domain, relation modeling between seen and unseen domains is vital for…

Machine Learning · Computer Science 2019-09-02 Chenrui Zhang , Xiaoqing Lyu , Zhi Tang

Scene Graph Generation (SGG) is a high-level visual understanding and reasoning task aimed at extracting entities (such as objects) and their interrelationships from images. Significant progress has been made in the study of SGG in natural…

Computer Vision and Pattern Recognition · Computer Science 2024-06-11 Xian Sun , Qiwei Yan , Chubo Deng , Chenglong Liu , Yi Jiang , Zhongyan Hou , Wanxuan Lu , Fanglong Yao , Xiaoyu Liu , Lingxiang Hao , Hongfeng Yu

Visual document understanding typically requires separate retrieval and generation models, doubling memory and system complexity. We present Hydra, a dual-head approach that provides both ColBERT-style late-interaction retrieval and…

Computer Vision and Pattern Recognition · Computer Science 2026-04-21 Athos Georgiou

Today's open vocabulary scene graph generation (OVSGG) extends traditional SGG by recognizing novel objects and relationships beyond predefined categories, leveraging the knowledge from pre-trained large-scale models. Most existing methods…

Computer Vision and Pattern Recognition · Computer Science 2025-02-07 Lin Li , Chuhan Zhang , Dong Zhang , Chong Sun , Chen Li , Long Chen

Scene Graph Generation (SGG) endeavors to predict the relationships between subjects and objects in a given image. Nevertheless, the long-tail distribution of relations often leads to biased prediction on coarse labels, presenting a…

Computer Vision and Pattern Recognition · Computer Science 2024-11-27 Qishen Chen , Jianzhi Liu , Xinyu Lyu , Lianli Gao , Heng Tao Shen , Jingkuan Song

We analyze the DETR-based framework on semi-supervised object detection (SSOD) and observe that (1) the one-to-one assignment strategy generates incorrect matching when the pseudo ground-truth bounding box is inaccurate, leading to training…

Computer Vision and Pattern Recognition · Computer Science 2023-07-18 Jiacheng Zhang , Xiangru Lin , Wei Zhang , Kuo Wang , Xiao Tan , Junyu Han , Errui Ding , Jingdong Wang , Guanbin Li

Multimodal LLMs have advanced vision-language tasks but still struggle with understanding video scenes. To bridge this gap, Video Scene Graph Generation (VidSGG) has emerged to capture multi-object relationships across video frames.…

Computer Vision and Pattern Recognition · Computer Science 2025-04-01 Trong-Thuan Nguyen , Pha Nguyen , Jackson Cothren , Alper Yilmaz , Khoa Luu

Stochastic gradient descent (SGD) is an immensely popular approach for online learning in settings where data arrives in a stream or data sizes are very large. However, despite an ever-increasing volume of work on SGD, much less is known…

Machine Learning · Statistics 2025-03-06 Weijie J. Su , Yuancheng Zhu

Multi-hop question answering (MHQA) requires integrating knowledge scattered across multiple passages to derive the correct answer. Traditional retrieval-augmented generation (RAG) methods primarily focus on coarse-grained textual semantic…

Computation and Language · Computer Science 2025-08-18 Changjian Wang , Weihong Deng , Weili Guan , Quan Lu , Ning Jiang

Retrieval-augmented generation (RAG) has become a dominant paradigm for mitigating knowledge hallucination and staleness in large language models (LLMs) while preserving data security. By retrieving relevant evidence from private,…

Information Retrieval · Computer Science 2025-09-29 Guohang Yan , Yue Zhang , Pinlong Cai , Ding Wang , Song Mao , Hongwei Zhang , Yaoze Zhang , Hairong Zhang , Xinyu Cai , Botian Shi

High dynamic range (HDR) novel view synthesis (NVS) aims to reconstruct HDR scenes from multi-exposure low dynamic range (LDR) images. Existing HDR pipelines heavily rely on known camera poses, well-initialized dense point clouds, and…

Computer Vision and Pattern Recognition · Computer Science 2026-03-19 Dingqiang Ye , Jiacong Xu , Jianglu Ping , Yuxiang Guo , Chao Fan , Vishal M. Patel

3D scene graph generation (SGG) has been of high interest in computer vision. Although the accuracy of 3D SGG on coarse classification and single relation label has been gradually improved, the performance of existing works is still far…

Computer Vision and Pattern Recognition · Computer Science 2022-11-15 Yuanyuan Liu , Chengjiang Long , Zhaoxuan Zhang , Bokai Liu , Qiang Zhang , Baocai Yin , Xin Yang

How to generate the ground-truth (GT) image is a critical issue for training realistic image super-resolution (Real-ISR) models. Existing methods mostly take a set of high-resolution (HR) images as GTs and apply various degradations to…

Computer Vision and Pattern Recognition · Computer Science 2023-03-24 Du Chen , Jie Liang , Xindong Zhang , Ming Liu , Hui Zeng , Lei Zhang

Relation prediction among entities in images is an important step in scene graph generation (SGG), which further impacts various visual understanding and reasoning tasks. Existing SGG frameworks, however, require heavy training yet are…

Computer Vision and Pattern Recognition · Computer Science 2021-07-13 Xuan Kan , Hejie Cui , Carl Yang

In this paper, we provide the observation that too few queries assigned as positive samples in DETR with one-to-one set matching leads to sparse supervision on the encoder's output which considerably hurt the discriminative feature learning…

Computer Vision and Pattern Recognition · Computer Science 2023-08-17 Zhuofan Zong , Guanglu Song , Yu Liu
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