Results 51 to 60 of about 845,204 (303)

Ellipsoidal Embeddings of Graphs

open access: yesSIAM Journal on Applied Mathematics
Due to their flexibility to represent almost any kind of relational data, graph-based models have enjoyed a tremendous success over the past decades. While graphs are inherently only combinatorial objects, however, many prominent analysis tools are based on the algebraic representation of graphs via matrices such as the graph Laplacian, or on ...
Michaël Fanuel   +3 more
openaire   +6 more sources

Graph Embedding for Retrieval

open access: yes, 2022
Information retrieval (IR) systems such as search engines are important for people to find what they need among the tremendous amount of data available in their organization or on the Internet. These IR systems enable users to search in a large data collection by specifying queries that describe their information needs. Traditionally, the data elements
openaire   +1 more source

Embedding graphs on Grassmann manifold

open access: yesNeural Networks, 2022
Learning efficient graph representation is the key to favorably addressing downstream tasks on graphs, such as node or graph property prediction. Given the non-Euclidean structural property of graphs, preserving the original graph data's similarity relationship in the embedded space needs specific tools and a similarity metric.
Bingxin Zhou   +4 more
openaire   +4 more sources

One-Hot Graph Encoder Embedding [PDF]

open access: yes, 2022
In this paper we propose a lightning fast graph embedding method called one-hot graph encoder embedding. It has a linear computational complexity and the capacity to process billions of edges within minutes on standard PC -- making it an ideal candidate ...
Priebe, Carey E.   +2 more
core   +1 more source

Regular embeddings of a graph [PDF]

open access: yesPacific Journal of Mathematics, 1983
In this paper we study embeddings of a graph G in Euclidean space R" that are 'regular' in the following sense: given any two distinct vertices u and v of G, the distance between the corresponding points in R" equals a if u and v are adjacent, and equals β otherwise.
openaire   +3 more sources

Microbiome‐blood–brain barrier interactions in aging — mechanisms and therapeutic potential

open access: yesFEBS Letters, EarlyView.
Aging reshapes the gut microbiome (↓SCFA‐producing commensals; ↑pro‐inflammatory outputs), shifting circulating metabolites (↓SCFAs; ↑LPS, ↑TMAO, ↑PAA) that act at the BBB to increase nonspecific transcytosis, alter transport, and promote astrocyte reactivity, heightening brain vulnerability.
Daniel Cuervo‐Zanatta   +3 more
wiley   +1 more source

Time2Graph: Dual Embedding and Nested-Graph Transformation for Performance Enhancement in Time Series Classification

open access: yesIEEE Access
In this paper, we propose Time2Graph, a novel graph-based classification model designed to improve time series classification(TSC) performance in graph environments. Time2Graph applies a nested graph construction to effectively analyze time series in the
Sanghun Lee, Yang-Sae Moon
doaj   +1 more source

Partial depletion of plasminogen activator inhibitor‐1 decreases subcutaneous fat cell hypertrophy and liver cholesterol in high‐fat‐fed female mice

open access: yesFEBS Letters, EarlyView.
Obesity raises blood levels of PAI‐1, a protein linked to metabolic dysfunction‐associated steatotic liver disease in people with obesity. In female mice fed a high‐fat diet, partially lowering PAI‐1 led to smaller subcutaneous fat cells and lower liver cholesterol, without changing body weight or insulin sensitivity.
Claudia E. Ramirez Bustamante   +10 more
wiley   +1 more source

Hebbian Graph Embeddings

open access: yesCoRR, 2019
Representation learning has recently been successfully used to create vector representations of entities in language learning, recommender systems and in similarity learning. Graph embeddings exploit the locality structure of a graph and generate embeddings for nodes which could be words in a language, products of a retail website; and the nodes are ...
Shalin Shah, Venkataramana B. Kini
openaire   +2 more sources

Graph Embedding with Topological Cycle-Constraints [PDF]

open access: yes, 1999
This paper concerns graph embedding under topological constraints. We address the problem of finding a planar embedding of a graph satisfying a set of constraints between its vertices and cycles that require embedding a given vertex inside its ...
Dornheim, Christoph, Christoph Dornheim
core   +1 more source

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