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Deep learning models often struggle to maintain generalizability in medical imaging, particularly under domain-fracture scenarios where distribution shifts arise from varying imaging techniques, acquisition protocols, patient populations,…

Machine Learning · Computer Science 2025-08-15 Furkan Pala , Islem Rekik

A graph is geometric 1-planar if it admits a straight-line drawing where each edge is crossed at most once. We provide the first systematic study of the parameterized complexity of recognizing geometric 1-planar graphs. By substantially…

Computational Complexity · Computer Science 2026-02-11 Alexander Firbas

Unsupervised domain mapping aims to learn a function to translate domain X to Y by a function GXY in the absence of paired examples. Finding the optimal GXY without paired data is an ill-posed problem, so appropriate constraints are…

Computer Vision and Pattern Recognition · Computer Science 2018-11-27 Huan Fu , Mingming Gong , Chaohui Wang , Kayhan Batmanghelich , Kun Zhang , Dacheng Tao

Generative self-supervised learning on graphs, particularly graph masked autoencoders, has emerged as a popular learning paradigm and demonstrated its efficacy in handling non-Euclidean data. However, several remaining issues limit the…

Machine Learning · Computer Science 2024-02-14 Yijun Tian , Chuxu Zhang , Ziyi Kou , Zheyuan Liu , Xiangliang Zhang , Nitesh V. Chawla

Universal Photometric Stereo is a promising approach for recovering surface normals without strict lighting assumptions. However, it struggles when multi-illumination cues are unreliable, such as under biased lighting or in shadows or…

Computer Vision and Pattern Recognition · Computer Science 2025-11-19 King-Man Tam , Satoshi Ikehata , Yuta Asano , Zhaoyi An , Rei Kawakami

Geometric estimation is required for scene understanding and analysis in panoramic 360{\deg} images. Current methods usually predict a single feature, such as depth or surface normal. These methods can lack robustness, especially when…

Computer Vision and Pattern Recognition · Computer Science 2025-05-29 Kun Huang , Fang-Lue Zhang , Fangfang Zhang , Yu-Kun Lai , Paul L. Rosin , Neil A. Dodgson

Geospatial Knowledge Graphs (GeoKGs) model geoentities (e.g., places and natural features) and spatial relationships in an interconnected manner, providing strong knowledge support for geographic applications, including data retrieval,…

Artificial Intelligence · Computer Science 2024-10-25 Lei Hu , Wenwen Li , Yunqiang Zhu

In this paper we show that visual diffusion models can serve as effective geometric solvers: they can directly reason about geometric problems by working in pixel space. We first demonstrate this on the Inscribed Square Problem, a…

Computer Vision and Pattern Recognition · Computer Science 2026-04-15 Nir Goren , Shai Yehezkel , Omer Dahary , Andrey Voynov , Or Patashnik , Daniel Cohen-Or

Text-to-Image (T2I) diffusion models have shown impressive results in generating visually compelling images following user prompts. Building on this, various methods further fine-tune the pre-trained T2I model for specific tasks. However,…

Computer Vision and Pattern Recognition · Computer Science 2025-04-24 Tsu-Jui Fu , Yusu Qian , Chen Chen , Wenze Hu , Zhe Gan , Yinfei Yang

Rectified Linear Units (ReLU) have become the main model for the neural units in current deep learning systems. This choice has been originally suggested as a way to compensate for the so called vanishing gradient problem which can undercut…

Disordered Systems and Neural Networks · Physics 2024-05-06 Carlo Baldassi , Enrico M. Malatesta , Riccardo Zecchina

Machine learning has been progressively generalised to operate within non-Euclidean domains, but geometrically accurate methods for learning on surfaces are still falling behind. The lack of closed-form Riemannian operators, the…

Computer Vision and Pattern Recognition · Computer Science 2026-03-18 Hippolyte Verninas , Caner Korkmaz , Stefanos Zafeiriou , Tolga Birdal , Simone Foti

Unified multimodal models have recently demonstrated strong generative capabilities, yet whether and when generation improves understanding remains unclear. Existing benchmarks lack a systematic exploration of the specific tasks where…

Computer Vision and Pattern Recognition · Computer Science 2026-03-04 Zimo Wen , Boxiu Li , Wanbo Zhang , Junxiang Lei , Xiaoyu Chen , Yijia Fan , Qi Zhang , Yujiang Wang , Lili Qiu , Bo Li , Ziwei Liu , Caihua Shan , Yifan Yang , Yifei Shen

Geometric problem solving has always been a long-standing challenge in the fields of mathematical reasoning and artificial intelligence. We built a neural-symbolic system, called FGeo-HyperGNet, to automatically perform human-like geometric…

Artificial Intelligence · Computer Science 2025-08-01 Xiaokai Zhang , Yang Li , Na Zhu , Cheng Qin , Zhenbing Zeng , Tuo Leng

The emergence of Large Language Models (LLMs) has unified language generation tasks and revolutionized human-machine interaction. However, in the realm of image generation, a unified model capable of handling various tasks within a single…

Computer Vision and Pattern Recognition · Computer Science 2024-11-22 Shitao Xiao , Yueze Wang , Junjie Zhou , Huaying Yuan , Xingrun Xing , Ruiran Yan , Chaofan Li , Shuting Wang , Tiejun Huang , Zheng Liu

In document image rectification, there exist rich geometric constraints between the distorted image and the ground truth one. However, such geometric constraints are largely ignored in existing advanced solutions, which limits the…

Computer Vision and Pattern Recognition · Computer Science 2022-10-18 Hao Feng , Wengang Zhou , Jiajun Deng , Yuechen Wang , Houqiang Li

Mixup has shown considerable success in mitigating the challenges posed by limited labeled data in image classification. By synthesizing samples through the interpolation of features and labels, Mixup effectively addresses the issue of data…

Machine Learning · Computer Science 2024-07-16 Wentao Zhao , Qitian Wu , Chenxiao Yang , Junchi Yan

In this paper, we propose to study a new geometric optimization problem called "geometric prototype" in Euclidean space. Given a set of patterns, where each pattern is represented by a (weighted or unweighted) point set, the geometric…

Computational Geometry · Computer Science 2018-04-26 Hu Ding , Manni Liu

Many recent efforts have been devoted to designing sophisticated deep learning structures, obtaining revolutionary results on benchmark datasets. The success of these deep learning methods mostly relies on an enormous volume of labeled…

Computer Vision and Pattern Recognition · Computer Science 2015-10-20 Jiaji Huang , Qiang Qiu , Robert Calderbank , Guillermo Sapiro

Matrix completion models are among the most common formulations of recommender systems. Recent works have showed a boost of performance of these techniques when introducing the pairwise relationships between users/items in the form of…

Machine Learning · Computer Science 2017-04-25 Federico Monti , Michael M. Bronstein , Xavier Bresson

Intrinsic image decomposition aims to estimate physically based rendering (PBR) parameters such as albedo, roughness, and metallicity from images. While recent methods achieve strong single-view predictions, applying them independently to…

Computer Vision and Pattern Recognition · Computer Science 2026-03-17 Alara Dirik , Stefanos Zafeiriou
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