Results 1 to 10 of about 760,180 (264)
Channel-wise Topology Refinement Graph Convolution for Skeleton-Based Action Recognition [PDF]
IEEE International Conference on Computer Vision, 2021 Graph convolutional networks (GCNs) have been widely used and achieved remarkable results in skeleton-based action recognition. In GCNs, graph topology dominates feature aggregation and therefore is the key to extracting representative features.
Yuxin Chen +5 more
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Acoustic non-Hermitian skin effect from twisted winding topology [PDF]
Nature Communications, 2021 The recently discovered non-Hermitian skin effect (NHSE) manifests the breakdown of current classification of topological phases in energy-nonconservative systems, and necessitates the introduction of non-Hermitian band topology.
Li Zhang +13 more
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Graduate Studies in Mathematics, 2020 This lecture covers several basic methods for standard tasks in data analysis and image processing. A non-exclusive and non-exhaustive list of meth-ods: histograms, dimension reduction, clustering, filters, frequency analysis, morphological methods ...
Claudia Scheimbauer
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Dynamic GCN: Context-enriched Topology Learning for Skeleton-based Action Recognition [PDF]
ACM Multimedia, 2020 raph Convolutional Networks (GCNs) have attracted increasing interests for the task of skeleton-based action recognition. The key lies in the design of the graph structure, which encodes skeleton topology information.
Fanfan Ye +5 more
semanticscholar +1 more source
Topology optimization of multi-scale structures: a review
Structural And Multidisciplinary Optimization, 2021 Multi-scale structures, as found in nature (e.g., bone and bamboo), hold the promise of achieving superior performance while being intrinsically lightweight, robust, and multi-functional.
Jun Wu, O. Sigmund, J. Groen
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Symmetry and Topology in Non-Hermitian Physics [PDF]
Physical Review X, 2018 We develop a complete theory of symmetry and topology in non-Hermitian physics. We demonstrate that non-Hermiticity ramifies the celebrated Altland-Zirnbauer symmetry classification for insulators and superconductors. In particular, charge conjugation is
K. Kawabata +3 more
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Higher-order band topology [PDF]
Nature Reviews Physics, 2020 A conventional topological insulator (TI) has gapped bulk states but gapless edge states. The emergence of the gapless edge states is dictated by the bulk topological invariant of the insulator and the preservation of relevant symmetries.
Biye Xie +6 more
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Genome Biology, 2019 Single-cell RNA-seq quantifies biological heterogeneity across both discrete cell types and continuous cell transitions. Partition-based graph abstraction (PAGA) provides an interpretable graph-like map of the arising data manifold, based on estimating ...
F. A. Wolf +8 more
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Exceptional topology of non-Hermitian systems [PDF]
Reviews of Modern Physics, 2019 The current understanding of the role of topology in non-Hermitian (NH) systems and its far-reaching physical consequences observable in a range of dissipative settings are reviewed.
E. Bergholtz +2 more
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Higher-Order Topology in Bismuth [PDF]
Nature Physics, 2018 The mathematical field of topology has become a framework in which to describe the low-energy electronic structure of crystalline solids. Typical of a bulk insulating three-dimensional topological crystal are conducting two-dimensional surface states ...
F. Schindler +14 more
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