What is the mathematical definition of degenerate multivariate random variables?

what is a clear definition of degenerate multivariate random variable from measure theoretic aspect? and how can we describe them with probability density function by introducing delta function ?

03 April 2018 1,639 0 View

What are theoretical topics in differenqial equation?

i look for a list of theoretical topics in differential equation not necessarily active research topics. the topics that is the in field of a concret math and is not differential equation...

02 March 2018 3,913 7 View

What is the best abstract definition for matrix determinant?

i look for a axiomatic or abstract definition for matrix determinant . there are a lot of formulas and properties for matrix determinant but none of them uniquely and qualitatively describe matrix...

02 March 2018 6,976 10 View

What are theoretical references in differential equations?

02 March 2018 5,218 10 View

Which of statistical learning and machine learning works better in theory?

I wonder if there is any explanation that which of statistical learning or machine learning may work better and what is reason for that.

10 November 2017 9,628 9 View

Which software is proper for simulation of partial discharge is SF6?

05 June 2017 2,051 3 View

Can association rule be stated by mixed integer programming or other well known optimization forms?

actually i am willing to model a classic problem of association rule by a standard constraint optimization which can be nonlinear and non-convex too but with minimum number of constraints and...

08 September 2016 6,441 6 View

What is the best set theoretic definition for Time ?

I am looking for a definition of time that address multiple goals! 1- (consistent) be consistent with no paradox with other phenomena.2- (set theoretic) can be expressed based on math notations!3-...

08 September 2016 916 0 View

What is the best alternative to matlab?

Im looking for a matlab like software which is reliable and fast as matlab.both free and comercial products can be the answer.

08 September 2015 7,692 3 View

What are the research topics in software defined networks?

I am familiar with SDN, however i am looking for the recent challenges and topics which are active in SDN in academy and industry.

04 May 2015 5,172 6 View

How to increase a model accuracy ?

dear community, my model is based feature extraction from non stationary signals using discrete Wavelet Transform and then using statistical features then machine learning classifiers in order to...

03 March 2021 6,994 5 View

What techniques can I use to determine the miscibility of polymer blends?

The term miscibility refers to the single-phase state in thermodynamics. I do not mean the compatibility of different components. To determine the miscibility I know several techniques such as...

03 March 2021 4,107 4 View

Shall I skip the measurement model in SmartPLS?

Hello everyone, I had run a mediation model in SmartPLS using questionnaires that were already validated among my statistical population. A professor who edited my paper -though she is not...

01 March 2021 3,052 3 View

What is involved in morphological changes of SEM images of a substance?

In the sem analysis of CaCO3 nanaoparticles, the morphology images showed spherical shaped particles but the proposed morphology for these type of nanoparticles is trigonal. I prepared the...

01 March 2021 1,960 4 View

Any specific pipeline or parameter to analyse total transcriptomics study of brain tissue samples?

I have two groups of brain samples, control and treated for example. It was total RNA nova seq sequencing. I tried all the available pipeline like: star+rsem+deseq2, Hista+stringtie+cuffdiff,...

27 February 2021 356 6 View

SEM or Multiple Regression for an analysis without Latent Variables?

Hello, I have three hypothesis to test, all with the same IV. I am testing if the effect of the IV on the first DV is mediated by awe. I am then measuring whether the effect of the IV on a...

26 February 2021 8,399 5 View

Please. Could you help be in implementing Fractal Discrete Cosine Transform algorithm in Matlab?

I do need the Matlab code of Fractal Discrete Cosine Transform (FDCT). Can anyone who has already implement this code, help me with the implementation of this transform?

24 February 2021 5,602 2 View

I'm using AMOS for SEM--Why does my chi-square value change when I specify groups?

My study involves 2 groups (Black and Latinx participants, N=816). I've run my structural equation models with the data all together and will get a completely different chi-square when I specify...

22 February 2021 9,342 4 View

Covid 19 Pandemic ' impact on digital transformation?

Covid 19 Pandemic and digital transformation

22 February 2021 3,351 5 View

Good day sir/ma. Please, where can I have access to equipment for conducting XRF, XRD and SEM analysis?

I'm using blast furnace slag for stabilizing subgrade soil.

17 February 2021 7,333 3 View