How to use expectation maximization for parameter estimation? Is there any library or tool available for it?

More Gunjan Naik's questions See All

Residuals are getting converged, but at a very migh magnitude of values. Why??

I am running a coarse DNS case for pipe flow with 2.1 Million cells. My residuals are quite fluctuating as its a fully turbulent annular pipe flow case but its getting statistically converged to a...

29 May 2024 2,063 5 View

Effect of \nu variation for a turbulent pipe flow at a constat Reynolds number ???

I am trying to run a turbulent pipe flow simulation with turbulent Reynolds number of 600, for 15 seconds, the flow is pressure driven due to gravity enforced buoyancy force which gives kinematic...

20 May 2024 5,619 3 View

Why <u'v'> cross-corelation is important whilte studying Reynolds Stresses in most studies??

In most common turbulence model studies, when considering Reynolds stresses the components of auto-correlation, , , and components of cross-correlation are considered. In the research studies...

02 May 2024 2,776 2 View

Could you please suggest me some of the best multi-parameter water analyzer kits (with brand) that can be taken to field for water quality sampling?

I am planning to work on different water bodies of Andhra Pradesh. So I want to purchase a portable water testing kit with multiple parameters. Please suggest me a few best option, which would be...

17 April 2024 7,210 3 View

Enforcing Wall shear stress (\tau_w) as a boudnary condition in OpenFOAM?

I am working on WMLES (wall Modelled LES) for which if I calculate my wall shear stress analytically and want to enforce it as a boundary condition at the wall patch, so that I do not need to...

15 April 2024 9,059 3 View

Relation between Bulk (Mean) and Friction Reynolds Number??

Is there any specific relation between Re_b (bulk/ Mean Reynolds number) and Re_\tau (friction Reynolds Number). In few of the literature and experimental work I have gone through researchers give...

01 April 2024 861 5 View

Why are the iterations needed to calculate final converged value of Yplus for wallFunctions in OpenFOAM?

This is a code block from nutWallFunction library in OpenFOAM where in, effective kinematic viscosity ($\nut_w$) at the wall is calculated using resolved field(in case of LES)/ mean field(in case...

04 March 2024 9,548 2 View

Effect of Prandtl on velocity for Natural Convection (Rayleigh Benard)?

When Prandtl number is increased for two cases tested over same Rayleigh number, the peak vertical-velocity decreases as Prandtl is increased. This is questionable to the fact that in general...

11 February 2024 4,196 2 View

How to calculate y+ analytically before the simulation if we have fully developed flow for the Annular pipe (a double wall bounded)?

I have a fully developed pipe flow in with Inner radius (r) and outer radius (R), using pressure driven flow condition due to buoyancy, - (1/rho) dP/dx = g and velocity scaling u* = sqrt ( (-R/...

09 February 2024 3,727 3 View

"Conformer generation is disallowed since too many atoms" or "too flexible" in PubChem 3D conformer. Can I perform docking with such compounds?

I wanted to convert few 2D compounds to 3D using Avogadro and then use them for docking. Are these ligands efficient for docking? Will I get accurate results. Thank you in advance.

29 January 2024 9,737 2 View

Feedback defines the constitution of an organism?

“Here is a thought experiment. Let's place Rodolpho Llinas's jarred-brain on top of a body (Fig. 1). I bet Llinas would argue that his jarred-brain retains its own consciousness, and the android...

11 August 2024 2,483 1 View

How to learn more about SPSS and its Application?

I would like to learn more about SPSS and Its application especially in regards to data analysis. Please suggest me how I can learn more about it. Thank you so much.

11 August 2024 9,101 4 View

Has anyone applied Python in the field of textile engineering for data analysis, automation, or smart textiles?

I'm currently exploring the application of Python in textile engineering, specifically in areas like data analysis, process automation, and the development of smart textiles. I'm interested in...

10 August 2024 7,429 2 View

Self-Organizing Superorganisms—as envisaged by Nenad Sestan (2018)?

The rate of glucose consumption by the neocortex is reduced by over 80% during anesthesia (Sibson et al. 1998), which disables the synapses (Richards 2002) that are inundated by glial tissue (Engl...

08 August 2024 3,118 0 View

Measuring the Intelligence of a Species?

Larger brains, which typically contain more neurons, store and transfer more information (Tehovnik and Chen 2015), but the precise relationship between number of neurons and information has yet to...

05 August 2024 1,238 2 View

How can i do multivariate Time Series forecast using MLP, ANFIS and LSTM?

I need the python code to forecast what crop production will be in the next decade considering climate and crop production variables as seen in the attached.csv file.

05 August 2024 2,977 3 View

The Curse of Evolution and Complexity?

Brain and body mass together are positively correlated with lifespan (Hofman 1993). The duration of neural development is one of the best predictors of brain size, and conception is the best...

05 August 2024 6,247 3 View

Could dyes amplify the spectrum of light to a specific wavelength?

I am interested to know the behavior of dyes toward light. Specifically, Blue dyes re-emit the spectrum, especially from the green zone (known as principal in LED lamps, and blue dyes are known...

05 August 2024 3,290 1 View

How to report results of Generalised Linear Mixed Models in a journal article?

Hi everyone, If you have written or come across any papers where Generalised Linear Mixed Models are used to examine intervention (e.g., in mental health) efficacy, could you please share the...

04 August 2024 4,130 4 View

Need help with my research project on open source SIEM and machine learning?

Hello everyone, I am currently working on a research project that aims to integrate machine learning techniques into an open source SIEM tool to automate the creation of security use cases from...

04 August 2024 3,196 2 View

Haider A. Al-Wzwazy

look for below link

https://pythonhosted.org/bob/temp/bob.learn.em/doc/index.html

David Eugene Booth

Get a GOOD statistics book and look up maximum likelihood estimation. This will give you all the information you are looking for. An example of such a book is given in the following link:

https://www.amazon.com/Modern-Mathematical-Statistics-Applications-Springer/dp/1461403901/ref=sr_1_1?ie=UTF8&qid=1529465097&sr=8-1&keywords=berk+and+devore+mathematical+statistics

Best wishes, David Booth