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As the class size grows, maintaining a balanced dataset across many classes is challenging because the data are long-tailed in nature; it is even impossible when the sample-of-interest co-exists with each other in one collectable unit,…

Computer Vision and Pattern Recognition · Computer Science 2025-10-28 Kaihua Tang , Jianqiang Huang , Hanwang Zhang

Accurate detection and segmentation of brain tumors is critical for medical diagnosis. However, current supervised learning methods require extensively annotated images and the state-of-the-art generative models used in unsupervised methods…

Image and Video Processing · Electrical Eng. & Systems 2023-11-07 Wenxin Wang , Zhuo-Xu Cui , Guanxun Cheng , Chentao Cao , Xi Xu , Ziwei Liu , Haifeng Wang , Yulong Qi , Dong Liang , Yanjie Zhu

Temporal Sentence Grounding (TSG) aims to identify relevant moments in an untrimmed video that semantically correspond to a given textual query. Despite existing studies having made substantial progress, they often overlook the issue of…

Computer Vision and Pattern Recognition · Computer Science 2025-08-26 Kefan Tang , Lihuo He , Jisheng Dang , Xinbo Gao

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

Sparse autoencoders can localize where concepts live in language models, but not how they interact during multi-step reasoning. We propose Causal Concept Graphs (CCG): a directed acyclic graph over sparse, interpretable latent features,…

Machine Learning · Computer Science 2026-04-27 Md Muntaqim Meherab , Noor Islam S. Mohammad , Faiza Feroz

Score-based generative models (SGMs) are powerful tools to sample from complex data distributions. Their underlying idea is to (i) run a forward process for time $T_1$ by adding noise to the data, (ii) estimate its score function, and (iii)…

Machine Learning · Computer Science 2024-06-06 Francesco Pedrotti , Jan Maas , Marco Mondelli

Scene Graph Generation (SGG) aims to generate a comprehensive graphical representation that accurately captures the semantic information of a given scenario. However, the SGG model's performance in predicting more fine-grained predicates is…

Computer Vision and Pattern Recognition · Computer Science 2024-08-27 Jiasong Feng , Lichun Wang , Hongbo Xu , Kai Xu , Baocai Yin

Dynamic scene graph generation (SGG) focuses on detecting objects in a video and determining their pairwise relationships. Existing dynamic SGG methods usually suffer from several issues, including 1) Contextual noise, as some frames might…

Computer Vision and Pattern Recognition · Computer Science 2024-01-24 Xin Lin , Chong Shi , Yibing Zhan , Zuopeng Yang , Yaqi Wu , Dacheng Tao

Cognitive diagnosis is a fundamental yet critical research task in the field of intelligent education, which aims to discover the proficiency level of different students on specific knowledge concepts. Despite the effectiveness of existing…

Computers and Society · Computer Science 2022-10-18 Shanshan Wang , Zhen Zeng , Xun Yang , Xingyi Zhang

Reasoning about complex visual scenes involves perception of entities and their relations. Scene graphs provide a natural representation for reasoning tasks, by assigning labels to both entities (nodes) and relations (edges). Unfortunately,…

Computer Vision and Pattern Recognition · Computer Science 2020-03-17 Moshiko Raboh , Roei Herzig , Gal Chechik , Jonathan Berant , Amir Globerson

Scene Graph Generation (SGG) aims to build a structured representation of a scene using objects and pairwise relationships, which benefits downstream tasks. However, current SGG methods usually suffer from sub-optimal scene graph generation…

Computer Vision and Pattern Recognition · Computer Science 2022-04-22 Chao Chen , Yibing Zhan , Baosheng Yu , Liu Liu , Yong Luo , Bo Du

The importance of Synthetic Data Generation (SDG) has increased significantly in domains where data quality is poor or access is limited due to privacy and regulatory constraints. One such domain is recruitment, where publicly available…

Machine Learning · Computer Science 2025-11-24 Andrea Iommi , Antonio Mastropietro , Riccardo Guidotti , Anna Monreale , Salvatore Ruggieri

A scene graph is a structured representation of objects and their spatio-temporal relationships in dynamic scenes. Scene Graph Anticipation (SGA) involves predicting future scene graphs from video clips, enabling applications in intelligent…

Computer Vision and Pattern Recognition · Computer Science 2025-12-04 Xiaomeng Zhu , Changwei Wang , Haozhe Wang , Xinyu Liu , Fangzhen Lin

Causal discovery aims to extract qualitative causal knowledge in the form of causal graphs from data. Because causal ground truth is rarely known in the real world, simulated data plays a vital role in evaluating the performance of the…

Machine Learning · Computer Science 2025-12-17 Rebecca J. Herman , Jonas Wahl , Urmi Ninad , Jakob Runge

Without loss of generality, existing machine learning techniques may learn spurious correlation dependent on the domain, which exacerbates the generalization of models in out-of-distribution (OOD) scenarios. To address this issue, recent…

Machine Learning · Computer Science 2024-06-18 Bin Qin , Jiangmeng Li , Yi Li , Xuesong Wu , Yupeng Wang , Wenwen Qiang , Jianwen Cao

Federated Graph Learning (FGL) has emerged as a powerful paradigm for decentralized training of graph neural networks while preserving data privacy. However, existing FGL methods are predominantly designed for static graphs and rely on…

Machine Learning · Computer Science 2026-04-01 Yuxuan Liu , Wenchao Xu , Haozhao Wang , Zhiming He , Zhaofeng Shi , Chongyang Xu , Peichao Wang , Boyuan Zhang

Deep generative models have shown tremendous capability in data density estimation and data generation from finite samples. While these models have shown impressive performance by learning correlations among features in the data, some…

Machine Learning · Computer Science 2024-05-24 Aneesh Komanduri , Xintao Wu , Yongkai Wu , Feng Chen

Unsupervised semantic segmentation aims to achieve high-quality semantic grouping without human-labeled annotations. With the advent of self-supervised pre-training, various frameworks utilize the pre-trained features to train prediction…

Computer Vision and Pattern Recognition · Computer Science 2026-05-11 Junho Kim , Byung-Kwan Lee , Yong Man Ro

Real-world data is extremely imbalanced and presents a long-tailed distribution, resulting in models that are biased towards classes with sufficient samples and perform poorly on rare classes. Recent methods propose to rebalance classes but…

Computer Vision and Pattern Recognition · Computer Science 2023-11-02 Weiqi Li , Fan Lyu , Fanhua Shang , Liang Wan , Wei Feng

Scene Graph Generation (SGG) unifies object localization and visual relationship reasoning by predicting boxes and subject-predicate-object triples. Yet most pipelines treat SGG as a one-shot, deterministic classification problem rather…

Computer Vision and Pattern Recognition · Computer Science 2026-04-22 Xin Hu , Ke Qin , Wen Yin , Yuan-Fang Li , Ming Li , Tao He