Is the explanation given in the attachment for L1 norm minimization of under sampling correct?

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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 9,949 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 8,581 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 657 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 8,977 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 2,743 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 6,295 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 6,021 0 View

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

Darwin's theory of evolution shows that life forms adapt to new situations. This leads to following questions : 1. What is the primary cause of change in situations in the world? Even with the...

31 December 2016 7,850 4 View

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

Technology has progressed in a manner which brings in may disciplines together. As an example Gene editing will require sensing / simulation/ electrical/chemical/ mechanical inputs . In what way...

05 June 2016 1,509 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 4,971 8 View

What is the difference between mathematical R^4 space and physical 4D unit space?

We assume that the difference is huge and that it is not possible to compare the two spaces. The R^4 mathematical space considers time as an external controller and the space itself is immobile in...

10 August 2024 6,678 14 View

Should I remove an item from a scale to raise Cronbach's alpha and McDonald's omega or is it better to leave it if they are both over .7 already?

Hello! I have this scale which had 10 items initially. I had to remove items 8 and 10 because they correlated negatively with the scale, and then I removed item 9 because Cronbach's alpha and...

01 August 2024 4,606 7 View

Why 3 replicates for most biological assays? Is it enough to examine the data fits normal distribution?

Just bounced on me. Before statistically analysing significant difference, shouldn't we see if data fits normal distribution first? Is 3 replicates enough to testify the hypothesis of normal...

31 July 2024 8,141 13 View

Posthoc test lettering in JAMOVI?

Does anyone know of a module for the JAMOVI software that is capable of generating mean separations using the classic letters based on post hoc results (e.g., Tukey test)? If, as I believe, such...

31 July 2024 3,333 4 View

All math can be explained by iterator of code?

all math can be traversed by code? all math can be translate to code?

26 July 2024 9,530 0 View

Can we eliminate the stress singularity at the tip of the crack by manipulating the elastic constants?

The aim of the research here is to prevent the propagation of the crack in the fabricated elastic medium with useful applications.

25 July 2024 9,976 3 View

Given the current advances in Super Computation and Quantum Computing, what are the missing link between the Applied AI and Ultra Smart Cyberspace?

In recent years, quantum computing has emerged as a groundbreaking technology with the potential to revolutionize various fields, including artificial intelligence (AI). AI has already made...

17 July 2024 1,398 3 View

Suggestion for PhD Research Topic/Topics in Applied Statistics?

Hi All I recently get admission in PhD statistics. After a long discussion with my supervisor, the topic I selected for PhD is " Air Pollution and its impact on Economy: A case study of...

15 July 2024 1,820 5 View

How can I extract the mathematical equation from existing Neural Network Model?

There exists a neural network model designed to predict a specific output, detailed in a published article. The model comprises 14 inputs, each normalized with minimum and maximum parameters...

14 July 2024 2,714 3 View

Does anyone know, any conference related to "mathematical data compression" topic?

Please suggest me, I want to present my research work.

13 July 2024 1,461 1 View