Results 11 to 20 of about 83,569 (275)

A Hyperbolic Graph Neural Network Model with Contrastive Learning for Rating–Review Recommendation [PDF]

open access: yesEntropy
In recommender systems research, the data sparsity problem has driven the development of hybrid recommendation algorithms integrating multimodal information and the application of graph neural networks (GNNs).
Shuyun Fang, Junling Wang, Fukun Chen
doaj   +2 more sources

Singularly perturbed hyperbolic problems on metric graphs: asymptotics of solutions

open access: yesOpen Mathematics, 2017
We are interested in the evolution phenomena on star-like networks composed of several branches which vary considerably in physical properties. The initial boundary value problem for singularly perturbed hyperbolic differential equation on a metric graph
Golovaty Yuriy, Flyud Volodymyr
doaj   +3 more sources

Hyperbolic Graph Convolutional Neural Networks. [PDF]

open access: yesAdv Neural Inf Process Syst, 2019
Published at Conference NeurIPS 2019.
Chami I, Ying R, Ré C, Leskovec J.
europepmc   +4 more sources

Hyperbolic multi-channel hypergraph convolutional neural network based on multilayer hypergraph [PDF]

open access: yesScientific Reports
In recent years, hypergraph neural networks have achieved remarkable success in tasks such as node classification, link prediction, and graph classification, thanks to their powerful computational capabilities.
Libing Bai   +4 more
doaj   +2 more sources

An efficient intelligent transportation system for traffic flow prediction using meta-temporal hyperbolic quantum graph neural networks [PDF]

open access: yesScientific Reports
Intelligent Transportation Systems (ITS) necessitate scalable, real-time, and adaptive traffic flow prediction models to enhance urban mobility and alleviate congestion.
Manikandan Rajagopal   +7 more
doaj   +2 more sources

Multi-order hyperbolic graph convolution and aggregated attention for social event detection. [PDF]

open access: yesPLoS ONE
Social event detection (SED) aims to identify real-world events from large-scale social media streams and has become essential for applications in public safety, marketing analytics, and crisis management.
Yao Liu   +3 more
doaj   +2 more sources

Hyperbolic Spatial Covariance Modeling with Adaptive Signal Filtering for Robust Wi-Fi Indoor Positioning [PDF]

open access: yesSensors
Robust indoor positioning, crucial to modern location-based services, increasingly leverages Channel State Information (CSI) for its superior multipath resolution over the traditional RSSI.
Wenxu Wang, Mingxiang Liu
doaj   +2 more sources

Knot graphs and Gromov hyperbolicity [PDF]

open access: yesMathematische Zeitschrift, 2022
We define a broad class of graphs that generalize the Gordian graph of knots. These knot graphs take into account unknotting operations, the concordance relation, and equivalence relations generated by knot invariants. We prove that overwhelmingly, the knot graphs are not Gromov hyperbolic, with the exception of a particular family of quotient knot ...
Stanislav Jabuka   +2 more
openaire   +3 more sources

Knowledge graph completion method based on hyperbolic representation learning and contrastive learning

open access: yesEgyptian Informatics Journal, 2023
Knowledge graph completion employs existing triples to deduce missing data, thereby enriching and enhancing graph completeness. Recent research has revealed that using hyperbolic representation learning in knowledge graph completion yields superior ...
Xiaodong Zhang   +3 more
doaj   +1 more source

Gromov Hyperbolicity in Directed Graphs [PDF]

open access: yesSymmetry, 2020
In this paper, we generalize the classical definition of Gromov hyperbolicity to the context of directed graphs and we extend one of the main results of the theory: the equivalence of the Gromov hyperbolicity and the geodesic stability. This theorem has potential applications to the development of solutions for secure data transfer on the internet.
Ana Portilla   +3 more
openaire   +3 more sources

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