What clear proof does show we have to choose eigen vector(s) associated with highest eigen value(s) for PCA dimension reduction?

What clear proof does show we have to choose eigen vector(s) associated with highest eigen value(s) for PCA dimension reduction?

06 June 2020 4,040 2 View

How would one read the files with extension .bnt, .lm2, .lm3 of Bosphorus 3D facedatasets in matlab?

How would one read the files with extension .bnt, .lm2, .lm3 of Bosphorus 3D facedatasets in matlab?

20 March 2020 5,870 2 View

Will a Minolta Vivid 910 3D Scanner and a Minolta Vivid 900 3D range scanner create the same form of 3D face data?

Will a Minolta Vivid 910 3D Scanner and a Minolta Vivid 900 3D range scanner create the same 3D face data? If not so, what would be the different between the nature of data they produce? Can the...

19 March 2020 2,912 4 View

Which algorithms makes use of least squares in object Recognition? Is least squares use in calculating PCA and SVD in machine learning?

Which algorithms makes use of least squares in object Recognition? Is the least squares approximation use in calculating Principal Component Analysis (PCA) and Singular Value Decomposition (SVD)...

15 March 2020 3,590 2 View

Where to get a free standard 3D face dataset?

Where to get a free standard 3D face dataset that is available for download for research purpose?

03 March 2020 5,425 3 View

Is it possible to have a matrix that have pivot columns in every row, in rref and are linearly dependent?

Is it possible to have a matrix that have pivot columns in every row, in Reduced Row-Echelon Form and is linearly dependent?

02 February 2020 5,499 2 View

Any detail proof of how a matrix inverse is derived and why a matrix multiplied by its inverse yields an identity matrix?

Any detail proof of how a matrix inverse is derived and why a matrix multiplied by its inverse yields an identity matrix? If reduce row echelon form is perform on a matrix A alongside its...

01 December 2019 3,830 4 View

error in running a model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

error in modelling model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

MGL tools

20 June 2021 0 0 View

i have some problem with chtMultiRegionSimpleFoam

--> FOAM FATAL ERROR: Maximum number of iterations exceeded From function Foam::scalar Foam::species::thermo::T(Foam::scalar, Foam::scalar, Foam::scalar, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar) const) const [with Thermo = Foam::hConstThermo >; Type = Foam::sensibleEnthalpy; Foam::scalar = double; Foam::species::thermo = Foam::species::thermo >, Foam::sensibleEnthalpy>] in file /home/ubuntu/OpenFOAM/OpenFOAM-4.1/src/thermophysicalModels/specie/lnInclude/thermoI.H at line 66. FOAM aborting #0 Foam::error::printStack(Foam::Ostream&) at ??:? #1 Foam::error::abort() at ??:? #2 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::calculate() at ??:? #3 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::correct() at ??:? #4 ? at ??:? #5 __libc_start_main in "/lib/x86_64-linux-gnu/libc.so.6" #6 ? at ??:?

24 March 2021 0 0 View

Can linear DNA be used as template for site-directed mutagenesis?

Is it possible to induce site-directed substitution mutation by quick-change method on linear dsDNA? or it has to be cloned in some vector? If yes, should it be treated with the Dpn1 enzyme...

03 March 2021 401 4 View

Resistor definition in Piezoelectric bimorph with ANSYS workbench

Hello, good day! I am trying to simulate similar bimorph piezoelectric harvester with below commands. However, the output power doesn't change with resistor value. Please help to find the reason. ET,10,CIRCU94,0 !SET UP RESISTOR R,1,100000 !RESISTANCE VALUE TYPE,10 !SET ELEMENT TYPE E,1,2 !CREATE RESISTOR BETWEEN NODES 1 AND 2 Thanks in advance Regards,

02 March 2021 0 0 View

The procedure compute?

02 March 2021 5,204 3 View

Is there a powerful system for the security of the systems distributed on IoT systems?

Is there a powerful system for the security of the systems distributed on IoT systems?

02 March 2021 3,858 10 View

Which is suitable for use with Python? MySQL or SQL Server?

Which is suitable for use with Python? MySQL or SQL Server? What is your suggestion?

01 March 2021 3,422 3 View

If you haven't computer? how you show the photons to pupils?

Educational Process

01 March 2021 1,827 1 View