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Video Temporal Grounding (VTG) aims to localize the video segment that corresponds to a natural language query, which requires a comprehensive understanding of complex temporal dynamics. Existing Vision-LMMs typically perceive temporal…

Computer Vision and Pattern Recognition · Computer Science 2026-03-10 Chaohong Guo , Yihan He , Yongwei Nie , Fei Ma , Xuemiao Xu , Chengjiang Long

Time dependent mode structure for the Lyapunov vectors associated with the stepwise structure of the Lyapunov spectra and its relation to the momentum auto-correlation function are discussed in quasi-one-dimensional many-hard-disk systems.…

Chaotic Dynamics · Physics 2007-05-23 Tooru Taniguchi , Gary P. Morriss

LiDAR-based 3D scene perception is a fundamental and important task for autonomous driving. Most state-of-the-art methods on LiDAR-based 3D recognition tasks focus on single frame 3D point cloud data, and the temporal information is ignored…

Computer Vision and Pattern Recognition · Computer Science 2022-07-12 Shi Hanyu , Wei Jiacheng , Wang Hao , Liu Fayao , Lin Guosheng

We review the construction of Lagrangians for higher spin fields of mixed symmetry in the framework of graded geometry. The main advantage of the graded formalism in this context is that it provides universal expressions, in the sense that…

High Energy Physics - Theory · Physics 2024-06-11 Athanasios Chatzistavrakidis , Georgios Karagiannis , Peter Schupp

We consider fixed-point models for topological phases of matter formulated as discrete path integrals in the language of tensor networks. Such zero-correlation length models with an exact notion of topological invariance are known in the…

Strongly Correlated Electrons · Physics 2022-09-27 Andreas Bauer , Jens Eisert , Carolin Wille

Coherent oceanic mesoscale structures, especially the non-filamenting cores of oceanic eddies, have gained a lot of attention in recent years. These Lagrangian structures are considered to play a significant role in oceanic transport…

Fluid Dynamics · Physics 2019-03-14 Benedict Lünsmann , Rahel Vortmeyer-Kley , Holger Kantz

Convergence is a fundamental topic in analysis that is most commonly modelled using topology. However, there are many natural convergences that are not given by any topology; e.g., convergence almost everywhere of a sequence of measurable…

Functional Analysis · Mathematics 2021-03-03 M. O'Brien , V. G. Troitsky , J. H. van der Walt

This note proposes a new notion of a gradient-like vector field and discusses its implications for the theory of Stein and Weinstein structures.

Symplectic Geometry · Mathematics 2024-06-06 Kai Cieliebak

Building on the Utiyama principle we formulate an approach to Lagrangian field theory in which exterior covariant differentials of vector-valued forms replace partial derivatives, in the sense that they take up the role played by the latter…

Mathematical Physics · Physics 2018-04-25 Daniel Canarutto

Rectangular treemaps are often the method of choice to visualize large hierarchical datasets. Nowadays such datasets are available over time, hence there is a need for (a) treemaps that can handle time-dependent data, and (b) corresponding…

Computational Geometry · Computer Science 2020-01-10 Eduardo Vernier , Max Sondag , Joao Comba , Bettina Speckmann , Alexandru Telea , Kevin Verbeek

One approach to understanding complex data is to study its shape through the lens of algebraic topology. While the early development of topological data analysis focused primarily on static data, in recent years, theoretical and applied…

Machine Learning · Computer Science 2021-06-29 Lu Xian , Henry Adams , Chad M. Topaz , Lori Ziegelmeier

This paper is devoted to the study of conformal and projective structures, and especially their connections, in the language of 2-frames, or $G$-structures of 2nd-order. While their normal Cartan connections are well-known, we use the…

Mathematical Physics · Physics 2024-07-23 Serge Lazzarini , Loïc Marsot

We construct algorithms and topological invariants that allow us to distinguish the topological type of a surface, as well as functions and vector fields for their topological equivalence. In the first part we discus the main structures…

Dynamical Systems · Mathematics 2025-01-28 Alexandr Prishlyak

We consider the behavior of generalized Laplacian vector fields on a Jordan domain of $\mathbb{R}^{3}$ with fractal boundary. Our approach is based on properties of the Teodorescu transform and suitable extension of the vector fields.…

Complex Variables · Mathematics 2021-02-11 Daniel González Campos , Marco Antonio Pérez de la Rosa , Juan Bory Reyes

The Filippov convention is widely used in the literature to define vector fields on a discontinuity set of piecewise-continuous vector fields. The aim of this paper is to give a sufficient and necessary condition for an interpolation scheme…

Dynamical Systems · Mathematics 2021-09-03 Tomoharu Suda

Temporal information plays a pivotal role in Bird's-Eye-View (BEV) driving scene understanding, which can alleviate the visual information sparsity. However, the indiscriminate temporal fusion method will cause the barrier of feature…

Computer Vision and Pattern Recognition · Computer Science 2024-08-27 Siyu Li , Jiacheng Lin , Hao Shi , Jiaming Zhang , Song Wang , You Yao , Zhiyong Li , Kailun Yang

Although topological artificial systems, like acoustic/photonic crystals and cold atoms in optical lattices were initially motivated by simulating topological phases of electronic systems, they have their own unique features such as the…

Other Condensed Matter · Physics 2021-08-12 L. B. Shao , Q. Liu , R. Xiao , Shengyuan A. Yang , Y. X. Zhao

Symplectic vector spaces are the phase spaces of linear mechanical systems. The symplectic form describes, for example, the relation between position and momentum as well as current and voltage. The category of linear Lagrangian relations…

Logic in Computer Science · Computer Science 2022-11-04 Cole Comfort , Aleks Kissinger

Cosmological perturbation theory relies on the decomposition of perturbations into so-called scalar, vector and tensor modes. This decomposition is non-local and depends on unknowable boundary conditions. The non-locality is particularly…

General Relativity and Quantum Cosmology · Physics 2015-05-27 Chris Clarkson , Bob Osano

It is expected that the $D$-topology makes every diffeological vector space into a topological vector space. We show that it is the case for a large class of diffeological vector spaces via $k_\omega$-space theory, but not so in general.…

Functional Analysis · Mathematics 2022-05-20 Enxin Wu , Zhongqiang Yang