Results 71 to 80 of about 653,122 (340)

A Graph-Based Recommendation Algorithm on Quaternion Algebra

open access: yes, 2022
This study presents a novel Quaternion-based link prediction method to be used in different recommendation systems. The method performs Quaternion algebra-based computations while making use of expressive and wide-ranged learning properties of the ...
Kurt,Z.   +4 more
core   +1 more source

Mechanoadaptation via Myosin Cytoplasmic Redistribution Protects Circulating Tumor Cells From Shear‐induced Death During Hematogenous Dissemination

open access: yesAdvanced Science, EarlyView.
This study investigates how CTCs survive varying shear stress during hematogenous metastasis. We uncover a self‐protection mechanism, by which non‐adherent CTCs adapt to high shearing milieu through accumulated cytoplasmic myosin‐mediated disruption of myosin‐actin binding, attenuating force transmission into chromatin to protect CTCs from shear ...
Cunyu Zhang   +10 more
wiley   +1 more source

Ultra‐Wide‐Field Noninvasive Imaging Through Scattering Media Via Physics‐Guided Deep Learning

open access: yesAdvanced Science, EarlyView.
We propose a physics‐guided adaptive dual‐domain learning method for ultra‐wide‐field noninvasive imaging through scattering media, namely UNI‐Net. Our method not only reduces the requirement for real experimental data by an order of magnitude but also enables clear imaging of complex scenes with an ultra‐large field of view, which is 164 times the OME
Lintao Peng   +5 more
wiley   +1 more source

Proper ARMA Modeling and Forecasting in the Generalized Segre’s Quaternions Domain

open access: yesMathematics, 2022
The analysis of time series in 4D commutative hypercomplex algebras is introduced. Firstly, generalized Segre’s quaternion (GSQ) random variables and signals are studied.
Jesús Navarro-Moreno   +2 more
doaj   +1 more source

The “fundamental theorem of algebra” for quaternions [PDF]

open access: yesBulletin of the American Mathematical Society, 1944
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Eilenberg, Samuel, Niven, Ivan
openaire   +2 more sources

Updatable Closed‐Form Evaluation of Arbitrarily Complex Multiport Network Connections

open access: yesAdvanced Electronic Materials, EarlyView.
The inverse design of electrically large wave devices often uses reduced‐order multiport models with discrete optimization, requiring many evaluations of complex interconnections between subsystems that differ only in a few blocks. This paper introduces a closed‐form framework enabling efficient Woodbury low‐rank updates of related, previous ...
Hugo Prod'homme, Philipp del Hougne
wiley   +1 more source

Kinematic control based on dual quaternion algebra and its application to robot manipulators

open access: yes, 2016
Title: Kinematic control based on dual quaternion algebra and its application to robot manipulators Author: Luis Felipe da Cruz Figueredo Supervisor: Prof. João Yoshiyuki Ishihara Co-Supervisor: Prof.
L. Figueredo
semanticscholar   +1 more source

Synchronization of Analog Neuron Circuits With Digital Memristive Synapses: An Hybrid Approach

open access: yesAdvanced Electronic Materials, EarlyView.
An hybrid circuit mimicking neural units coupled using memristive synapses is introduced. The analog neurons provide flexibility and robustness, and the digital memristive coupling guarantees the full reconfigurability of the interconnection. The onset of a synchronized spiking behavior in two circuits mimicking the Izhikevich neuron is discussed from ...
Lamberto Carnazza   +3 more
wiley   +1 more source

Fractional Quaternion Zernike Moments for Robust Color Image Copy-Move Forgery Detection

open access: yesIEEE Access, 2018
In this paper, fractional Zernike moments (FrZMs) for complex signals are generalized to fractional quaternion Zernike moments (FrQZMs) for quaternion signal processing in a holistic manner by the quaternion algebra.
Beijing Chen   +4 more
doaj   +1 more source

On Identities of a Ternary Quaternion Algebra [PDF]

open access: yesCommunications in Algebra, 2011
This article studies a simple 4-dimensional ternary algebra 𝒜 which appears analogously to the quaternions from the Lie algebra 𝔰𝔩(2). We describe the heights 1 and 2 identities, and the derivations of 𝒜. Based on 𝒜, some ternary enveloping algebras for ternary Filippov algebras are constructed.
Beites, P. D.   +3 more
openaire   +2 more sources

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