Results 51 to 60 of about 32,468 (150)

A Fuzzy Graph Based Chemometrics Method for Gelatin Authentication

open access: yesMathematics, 2020
Graph theory is a well-established concept that is widely used in numerous applications such as in biology, chemistry and network analysis. The advancement in the theory of graph has led to the development of a new concept called fuzzy autocatalytic set.
Nurfarhana Hassan   +3 more
doaj   +1 more source

Graph fourier transform with negative edges for depth image coding [PDF]

open access: yes2017 IEEE International Conference on Image Processing (ICIP), 2017
Recent advent in graph signal processing (GSP) has led to the development of new graph-based transforms and wavelets for image / video coding, where the underlying graph describes inter-pixel correlations. In this paper, we develop a new transform called signed graph Fourier transform (SGFT), where the underlying graph G contains negative edges that ...
Weng-Tai Su, Gene Cheung, Chia-Wen Lin
openaire   +2 more sources

Speaker verification method based on cross-domain attentive feature fusion

open access: yesTongxin xuebao, 2023
Aiming at the problem that the lack of structure information among speech signal sample in the front-end acoustic features of speaker verification system, a speaker verification method based on cross-domain attentive feature fusion was proposed.Firstly ...
Zhen YANG   +3 more
doaj   +2 more sources

NeTaGFT: A similarity network‐based method for trait analysis

open access: yesMethods in Ecology and Evolution
With the determination of numerous viral and bacterial genome sequences, sequence‐trait relationships, such as the evolution of virulence and associations to geographic location or host, are now being studied.
Hirotaka Matsumoto, Motomu Matsui
doaj   +1 more source

Graph Fourier Transformer with Structure-Frequency Information

open access: yesICASSP 2026 - 2026 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)
Graph Transformers (GTs) have shown advantages in numerous graph structure tasks but their self-attention mechanism ignores the generalization bias of graphs, with existing methods mainly compensating for this bias from aspects like position encoding, attention bias and relative distance yet still having sub-optimal performance and being insufficient ...
Yonghui Zhai   +4 more
openaire   +2 more sources

STFGCN: Spatio-Temporal Fusion Graph Convolutional Networks for Subway Traffic Prediction

open access: yesIEEE Access
Metro passenger flow prediction is a crucial and challenging task in the intelligent transportation system of subways. It serves as the foundation for achieving intelligent transportation in subway systems and holds significant importance in practical ...
Xiaoxi Zhang   +5 more
doaj   +1 more source

The Graph Fractional Fourier Transform in Hilbert Space

open access: yesIEEE Transactions on Signal and Information Processing over Networks
16 pages, 15 ...
Yu Zhang 0228, Bing-Zhao Li 0001
openaire   +2 more sources

Geary’s c for Multivariate Spatial Data

open access: yesMathematics
Geary’s c is a prominent measure of spatial autocorrelation in univariate spatial data. It uses a weighted sum of squared differences. This paper develops Geary’s c for multivariate spatial data. It can describe the similarity/discrepancy between vectors
Hiroshi Yamada
doaj   +1 more source

GrokFormer: Graph Fourier Kolmogorov-Arnold Transformers

open access: yesCoRR
20 pages, 7 figures, 11 tables, Accepted by ICML ...
Guoguo Ai   +4 more
openaire   +3 more sources

Graph Equivalence Classes for Spectral Projector-Based Graph Fourier Transforms

open access: yesCoRR, 2017
We define and discuss the utility of two equivalence graph classes over which a spectral projector-based graph Fourier transform is equivalent: isomorphic equivalence classes and Jordan equivalence classes. Isomorphic equivalence classes show that the transform is equivalent up to a permutation on the node labels.
Joya A. Deri, José M. F. Moura
openaire   +2 more sources

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