What is the procedure to calculate Berry Curvature and Z2 topological number (or Chern Number) Using VASP?

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What is the solution to solve the error " Error EDDDAV: Call to ZHEGV failed. Returncode = 29 2 56" ?

Hi All, When i use the latest vasp version 5.3.5, i face the error "Error EDDDAV: Call to ZHEGV failed. Returncode = 29 2 56" at the start of the run and hence job finish automatically due to...

05 June 2018 5,253 0 View

What is the next step after getting the FORCE_CONSTANTS file in Phonon calculations to check dynamical stability of a structure?

Hi , I am interested to learn the phonon calculation in order to check the dynamical stability of a structure. For this i am using Phonopy. The procedure that i followed as: (i) First i generate a...

11 December 2017 4,038 5 View

How can i identify the position of some atom in POSCAR using VESTA?

Hello, When i click at some atom in the VESTA, the Cartesian coordinates of that atom is appeared in the bottom. But when i check the POSCAR file (in text format) i dont trace these coordinates....

09 October 2017 2,072 0 View

How can i make Bilayer Bismuth (111) structure in material studio?

I am interested in layer materials of group V. how can i design bilayer Bismuth (111) structure in material studio? i am a beginner to use material studio.

05 June 2017 6,630 1 View

Why should we choose deep learning to machine learning? Why is CNN better for image classification? Can I get Typical Answer?

What Characteristics makes CNN work better?

03 March 2021 1,458 4 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

Anyone plz suggest relevant topic for research in image processing+Deep learning.?

I have selected brain tumor images ...but now found that already lots of research done n this topic.

03 March 2021 5,774 3 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

Is SSRN e-Journal Scopus indexed?

I have publication in SSRN. I want to know whether it is Scopus indexed? Does it show impact factor? What is its ISSN No.?

02 March 2021 4,565 3 View

Can you share me how teacher education is managed in your respective national educational system?

I feel that the practice in teacher education in my country is below the expected performance level due to very poor management system. Hope I will learn something from your experiences.

02 March 2021 1,516 4 View

Can NFL theorem be valid in infinite search space in ML?

NFL theorem is valid for algorithms training in fixed training set. However, the general characteristic of algorithms in expanded or open dataset has not been proved yet. Could you show your...

01 March 2021 1,189 3 View

Any research paper call for publication related to management or finance or economics?

It should be standard journal (Indexed)

01 March 2021 8,379 1 View

What is the difference between L1 and L2 regularization in machine learning?

L1 and L2 regularization

28 February 2021 4,187 3 View

How to eliminate Steady state error from Reinforcement learning genetic algorithm code?

The following code (see 1st 2 images attached) is used to produce PID controller values that are designed to control the system (G). The code finds the PID controller values (noted as k) by using...

28 February 2021 6,560 14 View