In decision tree or random forest, is there any parameter like information gain and Gini impurity?

To build the decision tree, we use the Gini impurity or information gain to determine the threshold for each node in this tree. my question is that if there is any possible parameter like...

02 March 2017 384 0 View

How do I use Caffe to train my own model?

Hello, everyone. Recently, I tried to use a new deep learn toolbox, namely Caffe. I just followed the introduction and installed the toolbox in Ubuntu 14.04 (Linux system). However, I still could...

11 December 2015 5,714 3 View

How to decrease the OOBerror significantly?

Hello, I am used the Treebagger(MATLAB function), to train the model, and get the error is about 18%. If increase the size of the training dataset, the out of bag error will not decrease rapidly....

11 December 2015 3,661 0 View

Why choose the biggest value of the gradient to be the gradient of the images?

Hello, for nowadays, I am still working on the HOG features. In this article,lear.inrialpes.fr/people/triggs/pubs/Dalal-cvpr05.pdf, it said that, for RGB images, it choose the biggest value of the...

10 November 2015 2,803 4 View

How do I calculate the color image gradient?

Recently, I do some RGB images processing. Using the gradients of these images to calculate the HOG features of the images, however, I am confused about how to calculate the gradient of color...

10 November 2015 3,644 9 View

Is there anything missing in Matconvnet MATLAB code for convolutional neural network?

07 August 2015 3,614 3 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

What are the most reliable approaches to extract key continuous frames from a video, with complete automation?

I have an input video, of skin (from a microscope that means it is magnified such that blood capillaries are visible). The idea is to extract 15 sec of continuous frames from a video of 1 min,...

02 March 2021 2,735 2 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 can extract ciprofloxacin hydrochloride disolve in water er to organic solvent such as dichloromethan or any other solvent?

I need a procedure to extract the ciprofloxacin hydrochloride from aqueous solution by using dichloromethane in detail,. I thank you very much.

01 March 2021 4,306 1 View

Which bacteria are suitable for quorum sensing screening?

I want to find a quorum sensing inhibitor from plant extracts. Klebsiella pneumoniae, Moraxella catarrhalis, Staphylococcus aureus, and Streptococcus pneumoniae. I looked for these strains...

01 March 2021 7,675 3 View

How to perform statistical analysis of coefficients extracted from transform techniques?

I am studying the potential of DCT and FFT coefficients extracted from a signal to classify the different objects that emit the signal. I applied the Shapiro-Wilk to confirm that data was not...

01 March 2021 8,079 2 View