Using liquids as superstrate in Fabry-Perot Cavity Antenna?

Hi, A Fabry Perot Cavity allows to increase the directivity of a low gain antenna by putting in the top of cavity a superstrate with high permittivity such as a ceramic (er=10.2). However,...

09 February 2021 6,799 8 View

Distribution of modes fields ?

Hi, We find a specific distribution of electric fields in structure for different frequencies which can be seen using em solvers and known as modes. I would like to know how we can choose the...

04 February 2021 10,043 3 View

Are there special specifications lining open channels with lean concrete, what is the compressive strength?

I need any international specifications for lining open channels with lean concrete.

10 June 2020 4,476 5 View

Training Loss Vs Testing Loss (Machine and Deep Learning wise)?

Hey Colleagues, I hope you are healthy and safe during this quarantine. For any machine learning model, we evaluate the performance of the model based on several points, and the loss is amongst...

28 March 2020 3,156 2 View

What is the adopted performance metric for Machine Learning (ML) classification problems in case of unbalanced data (Scientific Publications)?

Hello, my fellow researchers, I am dealing with purely unbalanced data for a supervised classification Deep Learning (DL) problem. The model that I am currently running is dealing with...

20 March 2020 7,646 5 View

How to use Google Colab to run .py files from Github repositories!?

Hey Everyone, I would like to use Google Colab to accelerate the process of calculation of my deep learning model. However, I cannot run the model directly from the .ipynb file in the Google...

12 March 2020 3,199 4 View

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20 August 2019 2,731 2 View

What is the best methods for curing when producing Reactive Powder Concrete?

When using traditional method of curing not give the satisfy results. Sometime, using the same methods of some researcher didn't give the same results.

20 November 2018 7,665 7 View

HMM for maternity dataset using R?

I have attached the simplified form of my data. The variable "Gender" will be the hidden state in our model and "Pregnancy Outcome" will be the observation. What is confusing me is that I don't...

18 September 2018 3,527 1 View

Why C-V shows a serious frequency dispersion in the case of Al2O3/GaN stack?

In the case of AL2O3/GaN stack a serious frequency dispersion is observed (Fig1) whereas this problem is negligible in the Al2O3/Si case (Fig.2). Moreover, the increase of the capacitance area...

18 June 2017 4,180 3 View

What is the most Operating System (OS) which can be INSTALL on Tiny hard devices like Raspberry Pi (RPi) hardware ?

I'm targeting to deploy a mesh network and manually configure MANET routing protocols. I'm preparing scenarios, architectures, and hard devices needed to do that. Are there some step-by-step...

03 March 2021 1,931 5 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 there a powerful system for the security of the systems distributed on IoT systems?

Is there a powerful system for the security of the systems distributed on IoT systems?

02 March 2021 3,858 10 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

How to choose ANN number of hidden layers and nodes?

Hello, Could you please share any interesting research explaining how to choose the number of hidden layers and nodes per layer in case of regression problems using ANN? Thank you, any help would...

01 March 2021 6,200 3 View

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

L1 and L2 regularization

28 February 2021 4,187 3 View