Výsledky vyhledávání - "Hierarchically"

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Short hierarchically hyperbolic groups II: quotients and the Hopf property for Artin groups

Autor: Mangioni, Giorgio, Sisto, Alessandro

We prove that most Artin groups of large and hyperbolic type are Hopfian, meaning that every self-epimorphism is an isomorphism. The class covered by our result is generic, in the sense of Goldsborough-Vaskou. Moreover, assuming the residual finitene

Externí odkaz: http://arxiv.org/abs/2412.04364

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FedRAV: Hierarchically Federated Region-Learning for Traffic Object Classification of Autonomous Vehicles

Autor: Zhai, Yijun, Zhou, Pengzhan, He, Yuepeng, Qu, Fang, Qin, Zhida, Jiao, Xianlong, Liu, Guiyan, Guo, Songtao

The emerging federated learning enables distributed autonomous vehicles to train equipped deep learning models collaboratively without exposing their raw data, providing great potential for utilizing explosively growing autonomous driving data. Howev

Externí odkaz: http://arxiv.org/abs/2411.13979

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CLIPer: Hierarchically Improving Spatial Representation of CLIP for Open-Vocabulary Semantic Segmentation

Autor: Sun, Lin, Cao, Jiale, Xie, Jin, Jiang, Xiaoheng, Pang, Yanwei

Contrastive Language-Image Pre-training (CLIP) exhibits strong zero-shot classification ability on various image-level tasks, leading to the research to adapt CLIP for pixel-level open-vocabulary semantic segmentation without additional training. The

Externí odkaz: http://arxiv.org/abs/2411.13836

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Short hierarchically hyperbolic groups I: uncountably many coarse median structures

Autor: Mangioni, Giorgio

We prove that the mapping class group of a sphere with five punctures admits uncountably many non-equivalent, coarsely equivariant coarse median structures, falsifying a folklore belief. The same is shown for right-angled Artin groups whose defining

Externí odkaz: http://arxiv.org/abs/2410.09232

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On Equational Noetherianity of Colorable Hierarchically Hyperbolic Groups

Autor: Barak, Ohana

We study the homomorphisms from a fixed finitely generated group to strictly acylindrical colorable hierarchically hyperbolic groups. We prove that any such group is equationally noetherian.
Comment: 37 pages, 2 figures

Externí odkaz: http://arxiv.org/abs/2410.00977

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Identifying Hierarchically Triple Star Systems with Gaia DR3 and LAMOST

Autor: He, Tongyu, Li, Jiao, Li, Jiangdan, Xiong, Jianping, Zhang, Xiaobin, Kovalev, Mikhail, Cheng, Qiyuan, Guo, Sufen, Yang, Mingkuan, Chen, Xuefei, Han, Zhanwen

Triple star systems are critical for understanding stellar dynamics and compact objects in astrophysics, yet confirmed hierarchical triples identified via spectroscopy remain limited. In this study, we identified 23 triple systems by cross-matching t

Externí odkaz: http://arxiv.org/abs/2412.02625

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