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Using tangent bundle geometry we construct an equivalent reformulation of classical field theory on flat spacetimes which simultaneously encodes the perspectives of multiple observers. Its generalization to curved spacetimes realizes a new…

High Energy Physics - Theory · Physics 2018-06-13 Mattias N. R. Wohlfarth

We desribe vector bundles over a class of noncommutative curves, namely, over noncommutative nodal curves of string type and of almost string type. We also prove that in other cases the classification of vector bundles over a noncommutative…

Algebraic Geometry · Mathematics 2015-01-27 Yuriy A. Drozd , Denys E. Voloshyn

The decoder-based machine learning generative algorithms such as Generative Adversarial Networks (GAN), Variational Auto-Encoders (VAE), Transformers show impressive results when constructing objects similar to those in a training ensemble.…

Computer Vision and Pattern Recognition · Computer Science 2024-02-20 Gabriel Turinici

The integration of Vector Quantised Variational AutoEncoder (VQ-VAE) with autoregressive models as generation part has yielded high-quality results on image generation. However, the autoregressive models will strictly follow the progressive…

Computer Vision and Pattern Recognition · Computer Science 2024-03-01 Minghui Hu , Yujie Wang , Tat-Jen Cham , Jianfei Yang , P. N. Suganthan

We prove two results about vector bundles on singular algebraic surfaces. First, on proper surfaces there are vector bundles of rank two with arbitrarily large second Chern number and fixed determinant. Second, on separated normal surfaces…

Algebraic Geometry · Mathematics 2007-05-23 Stefan Schroeer , Gabriele Vezzosi

We address the recently introduced notions of generalized principal bundle and generalized principal connection by keeping track of global geometric properties through local coordinate transformation laws. This approach leads us to…

Mathematical Physics · Physics 2026-05-05 Lorenzo Fatibene , Hartwig Winterroth

Hypernetworks are neural networks that generate weights for another neural network. We formulate the hypernetwork training objective as a compromise between accuracy and diversity, where the diversity takes into account trivial symmetry…

Machine Learning · Statistics 2018-04-10 Lior Deutsch

Dramatic advances in generative models have resulted in near photographic quality for artificially rendered faces, animals and other objects in the natural world. In spite of such advances, a higher level understanding of vision and imagery…

Computer Vision and Pattern Recognition · Computer Science 2019-04-05 Raphael Gontijo Lopes , David Ha , Douglas Eck , Jonathon Shlens

Vector graphics are widely used to represent fonts, logos, digital artworks, and graphic designs. But, while a vast body of work has focused on generative algorithms for raster images, only a handful of options exists for vector graphics.…

Computer Vision and Pattern Recognition · Computer Science 2021-04-02 Pradyumna Reddy , Michael Gharbi , Michal Lukac , Niloy J. Mitra

Vector maps are essential in autonomous driving for tasks like localization and planning, yet their creation and maintenance are notably costly. While recent advances in online vector map generation for autonomous vehicles are promising,…

Computer Vision and Pattern Recognition · Computer Science 2024-05-02 Narayanan Elavathur Ranganatha , Hengyuan Zhang , Shashank Venkatramani , Jing-Yan Liao , Henrik I. Christensen

Current image-to-image translation methods formulate the task with conditional generation models, leading to learning only the recolorization or regional changes as being constrained by the rich structural information provided by the…

Computer Vision and Pattern Recognition · Computer Science 2022-07-28 Yu-Jie Chen , Shin-I Cheng , Wei-Chen Chiu , Hung-Yu Tseng , Hsin-Ying Lee

In this chapter, we discuss normal generators for mapping class groups of surfaces. Especially, we focus on the relation between normal generation of a mapping class with its asymptotic translation lengths on the Teichm\"uller space and the…

Geometric Topology · Mathematics 2026-04-13 Hyungryul Baik , Dongryul M. Kim

In this article, we investigate the instability of syzygy bundles corresponding to globally generated vector bundles on smooth irreducible projective surfaces under change of polarization.

Algebraic Geometry · Mathematics 2026-02-09 Snehajit Misra

We investigate the existence of globally generated vector bundles of rank 2 with $c_1\leq 3$ on a smooth quadric threefold and determine their Chern classes. As an automatic consequence, every rank 2 globally generated vector bundle on $Q$…

Algebraic Geometry · Mathematics 2013-06-05 Edoardo Ballico , Sukmoon Huh , Francesco Malaspina

Generative Adversarial Networks (GAN) have motivated a rapid growth of the domain of computer image synthesis. As almost all the existing image synthesis algorithms consider an image as a pixel matrix, the high-resolution image synthesis is…

Graphics · Computer Science 2022-05-17 Valeria Efimova , Ivan Jarsky , Ilya Bizyaev , Andrey Filchenkov

Generative models based on diffusion have become the state of the art in the last few years, notably for image generation. Here, we analyse them in the high-dimensional limit, where data are formed by a very large number of variables. We…

Disordered Systems and Neural Networks · Physics 2023-10-31 Giulio Biroli , Marc Mézard

As academic interest in procedural content generation (PCG) for games has increased, so has the need for methodologies for comparing and contrasting the output spaces of alternative PCG systems. In this paper we introduce and evaluate a…

Human-Computer Interaction · Computer Science 2022-11-01 Oliver Withington , Laurissa Tokarchuk

Generative models have made significant progress in the tasks of modeling complex data distributions such as natural images. The introduction of Generative Adversarial Networks (GANs) and auto-encoders lead to the possibility of training on…

Computer Vision and Pattern Recognition · Computer Science 2018-03-29 Tobias Hinz , Stefan Wermter

Generative Adversarial Networks (GANs) are machine learning methods that are used in many important and novel applications. For example, in imaging science, GANs are effectively utilized in generating image datasets, photographs of human…

Computer Vision and Pattern Recognition · Computer Science 2022-01-25 Soheyla Amirian , Thiab R. Taha , Khaled Rasheed , Hamid R. Arabnia

Significant research has been carried out in the past half-century on defining generalised determinants for transformations between (typically real) vector spaces of different dimensions. We review three different generalisations of the…

General Mathematics · Mathematics 2019-04-18 Abhimanyu Pallavi Sudhir