How to normalize feature vectors?

My problem consists of Data matrix with size 1000x12. 12 features with 1000 examples. It is a 4 class problem.Now my question is how to perform feature normalization. I assume some ways (listed...

08 September 2016 6,719 9 View

What is the better way of ECG heart beat segmentation?

What I noticed from the literature is that for automated heartbeat classification ECG segmentation is an essential pre-processing step. However, I wonder that they are fixing the same beat length...

08 September 2016 8,920 5 View

Is class specific feature normalization acceptable?

Is it possible to do feature normalization with respective to class. EX: 10x10 data matrix with two class. Each class of size 5x5. Now normalize 25 features of class 1 and 25 features of class 2...

08 September 2016 1,717 5 View

How physiology related to signal processing techniques bio-medical signal processing?

While dealing recognition problems in biomedical application such as ECG, ECG classification, how can we relate underlying physiology of bio signals with extracted features using signal processing...

08 September 2016 9,863 2 View

How can i find posterior probabilities of trained SVM instead of the binarized output?

I need to get the posterior probabilities output of trained SVM instead of the binarized output. In the latest versions of Matlab, this can be done by the following steps: SVMModel =...

04 May 2016 508 2 View

How can i find posterior probabilities of trained SVM instead of the binarized output?

I need to get the posterior probabilities output of trained SVM instead of the binarized output. In the latest versions of Matlab, this can be done by the following steps: SVMModel =...

04 May 2016 9,751 1 View

Where can I find a database for all types of standard ECG and PCG signals?

02 March 2015 5,895 2 View

What is the relation between features and clinical evidence?

01 January 1970 9,499 5 View

Physics: Why do we describe light by referring to its wavelength, but microwaves and radar pulses by referring to their frequency?

In physics, the description of the properties of light generally refers to its wavelength (nm), while in the range of microwaves and radio waves we refer to the frequency of a signal (e.g. kHz or...

03 March 2021 1,682 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

Can we block unwanted images during the x-ray prediction?

i am try to classify the x-ray images. During classification , can i block unwanted images (except x-ray image).

03 March 2021 7,100 1 View

Is there a classification scheme for rock cavities or caverns with respect to their size and shape?

The range of forms and sizes of cavities in rock is very big. Is there a classification scheme for rock cavities regarding their size and shape?

02 March 2021 4,511 3 View

Why are the velocities so high in my Boussinesq approximation Fluent simulation?

Hello, I have a mechanism where air rises due to convective flows. In this simulation, nothing is driving the air except this. I understand that the Boussinesq approximation only works for small...

02 March 2021 4,910 3 View

Why almost every element would be metallized in sufficiently high pressure and low temperature?

(This statement is from wikipedia, BTW). What is so special about metallic bond that is limiting high-P low-T state of a matter (as long as individual atoms exist, not white dwarf of neutron star...

02 March 2021 3,309 2 View

Image Processing and classification using keras/Tensorflow?

Do you have some recommendations approaches on Image processing and classification of plant diseases using TensorFlow/Keras?

02 March 2021 1,493 4 View

Does anyone have kinetic and kinematic dataset for gait classification?

I want to differentiate between normal and abnormal movement. For this reason, I am looking forward to this type of dataset.

01 March 2021 9,485 1 View

What is the density for pva electrospining?

I'm Juan Carlos, a high school student who is working with electropinning, I made an electropinning machine with a 21g needle and a 30kv high voltage source and the distance between my needle is...

28 February 2021 298 3 View

Can I put a figure that was drawn by Bio-Render in publication paper?

I want to publish paper in journal but I have figures which have drawn with bio-renders, can I put them in the paper or which other software I can use to draw them?

27 February 2021 8,179 1 View