Does SVD reflect accurately the user ratings and movie classification?

A simple example is explored in attached pdf by building a matrix a with given user rating and movie claasification and weights , but we do not seem to recover our original data components , hence...

04 May 2019 9,783 4 View

Is it possible to estimate hotness of chile by visual inspection?

Often it is difficult to add the correct number of chiles in cooking so that required taste is obtained . Estimating the hotness ( Scoville Heat Unit ) would help in meeting targetted taste. It...

11 December 2018 8,441 6 View

How to design a basic introductory course in AI for Ug?

AI requires facility in Linear Algebra,ANN, Calculus ,Probability and RP(Bayesian rules), DSP, Image processing ,NLP and programming. What would be the bare essentials(foundation) from these...

10 November 2018 489 9 View

Are there smooth elegant functions which are aperiodic ?

Here is an excerpt from Schroedinger's "What is life?" Would be interesting to view this mathematically using smooth ordinary type functions ,which are not spliced and joined. Schroedinger...

05 June 2018 8,816 4 View

Will every closed curve have foci determined by some criteria?

We can think of the circle center as a "focus" of points of its circumference given by distance to center = constant. In case of an ellipse we have sum of distance from points on boundary to the...

01 February 2018 2,580 9 View

Are there mathematical functions to describe the shapes of various biological objects, especially anthills?

There seem to be a wide variety of shapes in the biological world . In 2d we have various shapes of leaves. In 3d we have anthills , trees , fruits and animals with different shapes. All of them...

01 February 2018 6,150 19 View

What is the intuition to construct link and cannot link projection matrix?

In Power system islanding Dimension reduction is obtained for the Lyapunov Matrix via link and do not link on generator nodes . It would be helpful if a numerical example giving a clear picture of...

05 June 2017 5,872 0 View

Does evolution imply a higher form of "consciousness" which is non biological?

31 December 2016 7,702 4 View

How can we explain impact of green and new ethical challenges to ug electrical engineers.?

05 June 2016 1,328 2 View

How do coconut trees get so much water up above the ground ?

It is interesting to observe coconut trees which transport water from the ground(?) to fairly large heights .What is the mechanism ? Can we replicate it artificially? .Why should it grow so tall...

04 May 2016 4,812 8 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

How climate change will influences human and animal behavioral change?

The role of climate change influencing the human behavior as well as economics interest

01 June 2021 0 0 View

what is the simplest definition of ion exchange capacity

What this unit identifies for the ion exchange capacity ca. 0.92 meq. g-1. I am a newcomer in the membrane area. I just started. I highly appreciate your help

08 May 2021 0 0 View

what is the simplest definition of ion exchange capacity

What this unit identifies for the ion exchange capacity ca. 0.92 meq. g-1. I am a newcomer in the membrane area. I just started. I highly appreciate your help

08 May 2021 0 0 View

flexibility of polymers chain

effect of double bond on the flexibility of polymers

07 April 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

Formulation of polymer color flakes

I am writing to request some information for making polymer color flakes. I would appreciate the help.

17 March 2021 0 0 View

What are some of the research gaps in machine learning and artificial intelligence in africa?

i would to know some of the research gaps in the artificial intelligence field in most african countries.

03 March 2021 6,145 3 View