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How to Reduce Dimension With PCA and Random Projections? [PDF]

open access: yesIEEE Transactions on Information Theory, 2021
In our "big data" age, the size and complexity of data is steadily increasing. Methods for dimension reduction are ever more popular and useful. Two distinct types of dimension reduction are "data-oblivious" methods such as random projections and sketching, and "data-aware" methods such as principal component analysis (PCA).
Fan Yang   +3 more
openaire   +3 more sources

Resilience of Nematode Connectomes Based on Network Dimension-reduced Method

open access: yesFrontiers in Physics, 2021
The whole map of nematode connectomes provides important structural data for exploring the behavioral mechanism of nematodes, but to further reveal the functional importance and resilience pattern of nematode neurons, it is necessary to effectively ...
Duan Dongli, Wu Xixi, Si Shubin
doaj   +1 more source

Reduced‐dimension MVDR beamformer based on sub‐array optimization

open access: yesIET Communications, 2022
A reduced‐dimension minimum variance distortionless response based on sub‐array optimization beamformer (SAMVDR) is proposed for large array systems or some hardware performance constrained scenarios.
Tuanning Liu   +3 more
doaj   +1 more source

Reduced-Rank Envelope Vector Autoregressive Model [PDF]

open access: yes, 2023
The standard vector autoregressive (VAR) models suffer from overparameterization which is a serious issue for high-dimensional time series data as it restricts the number of variables and lags that can be incorporated into the model.
S. Yaser Samadi (17019385)   +1 more
core   +1 more source

Thermodynamics at microscales: 3D→2D, 1D and 0D

open access: yesGreen Energy & Environment, 2020
Today, the laws of traditional thermodynamics are facing challenges when science is growing rapidly toward the microscale-world, even quantum hypothesis.
Kun Dong, Feng Huo, Suojiang Zhang
doaj   +1 more source

Reduced density matrix approach to ultracold few-fermion systems in one dimension

open access: yesNew Journal of Physics, 2022
The variational determination of the two-fermion reduced density matrix (2-RDM) is described for harmonically trapped, ultracold few-fermion systems in one dimension with equal spin populations.
Mitchell J Knight   +2 more
doaj   +1 more source

Multiscale fractal dimension analysis of a reduced order model of coupled ocean–atmosphere dynamics [PDF]

open access: yesEarth System Dynamics, 2021
Atmosphere and ocean dynamics display many complex features and are characterized by a wide variety of processes and couplings across different timescales.
T. Alberti   +3 more
doaj   +1 more source

Effect of Vericiguat, a Soluble Guanylate Cyclase Stimulator, on Natriuretic Peptide Levels in Patients With Worsening Chronic Heart Failure and Reduced Ejection Fraction: The SOCRATES-REDUCED Randomized Trial [PDF]

open access: yes, 2015
Worsening chronic heart failure (HF) is a major public health ...
SOCRATES REDUCED, Investigators   +3 more
core   +1 more source

Sparse Representation Based Algorithm for Airborne Radar in Beam-Space Post-Doppler Reduced-Dimension Space-Time Adaptive Processing

open access: yesIEEE Access, 2017
An efficient and training-sample-reducing space-time adaptive processing (STAP) algorithm based on sparse representation for ground clutter suppression in airborne radar is proposed in this paper. First of all, the principle and problems of sample matrix
Yiduo Guo, Guisheng Liao, Weike Feng
doaj   +1 more source

A Fiber Nonlinearity Compensation Scheme With Complex-Valued Dimension-Reduced Neural Network

open access: yesIEEE Photonics Journal, 2021
A fiber nonlinearity compensation scheme based on a complex-valued dimension-reduced neural network is proposed. The proposed scheme performs all calculations in complex values and employs a dimension-reduced triplet feature vector to reduce the size of ...
Pinjing He   +6 more
doaj   +1 more source

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