29 January 2018 8 10K Report

Basics, methods, calibrations etc.

More Irakli Javakhishvili's questions See All
Should data be preprocessed before or during cross-validation?

Consider the natural case when we have an imbalanced dataset, maybe with missing values and containing categorical features. We need to impute missing values, do some sort of balancing and also...

08 February 2023 8,363 3 View

How to perform generalized forecast error variance decomposition ?

Hello everyone. I am using the VECM model and I want to use variance decomposition, but as you know variance decomposition is very sensitive to the ordering of the variable. I read in some papers...

28 May 2021 3,502 5 View

I have problem with structural VAR model. can anyone help?

I was using the VAR model and to see the impulse response function I used Cholesky decomposition. data is quarterly from 2003q1 to 2019q2. The first variable is oil price as a supply shock, second...

06 April 2021 4,390 6 View

I am using VAR model and it shows me wrongly that exchange rate has negative effect on CPI and what can be problem?

I am using VAR model and to see the impulse response function I used Cholesky decomposition. The first variable is oil price as a supply shock, second output gap by applying Hodrick-Prescott...

20 March 2021 7,054 9 View

Weights in mixed model ANOVA, should I use weights prior to any analysis?

I have a within subjects survey data. One variable is gender where I check if there is a gender difference in body perception. For this I understand that I have to use weights but the rest of the...

13 September 2020 7,079 1 View

A manual of geotechnical investigation?

Can someone provide a manual or a guide of geotechnical investigation procedures for different types of constructions in English? I mean a guide of methodology and standard procedures for...

17 February 2020 6,879 3 View

What method can be used to determine the P-T conditions of low temperature/pressure metamorphism?

If all known classical geotermobarometers does not work... :)

27 November 2019 2,231 8 View

I am looking for person, who can help me in my PhD. I study metamorphism and I need consultant and collaborator. Who is open for collaboration?

I study contact and regional metamorphism of Dizi series, Great Caucasus, Georgia. I have a problem only with analytical part of my work. And It would be great to share knowledge and experience...

13 February 2019 6,123 14 View

Are there improved methods for feedback control systems better than Bode diagrams?

What methods are established after Bode's diagrams to find optimal regulators for linear (time-invariant) dynamical systems of the type: dx/dt=Ax+Bu, y=Cx, where A, B and C are real matrices (with...

08 November 2014 2,269 3 View

Can someone cite some references for connections between graph theory and general topology?

I especially have interests to graphs on finite sets and finite topologies.

05 December 2013 4,423 25 View

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