Tamilalagan Natarajan

10 Questions 6 Answers 0 Followers

Questions related from Tamilalagan Natarajan

Best technique for classification of alternating current (ac) waveforms?

I want to perform classification of alternating current (ac) wave-forms -to classify wave forms (such as type 1, type 2 etc.). I request advice on best classification technique (SVM, Neural...

07 July 2018 3,174 2 View

How to identify incorrectly classfied instances from WEKA GUI?

I am using WEKA GUI and running rotation forest classifier. Is there any easy way to identify incorrectly classified instances?

02 February 2016 7,170 4 View

Classification-calculate probability of a new variable influencing class output?

I have 2 classes (good and poor) based on several numeric variables (say, v1…. v20). Conditions of classification: If v1, v2, v3 and v4 are “high”, then the class is “poor”. If v1, v2, v3 and v4...

01 January 2016 4,093 3 View

Are there any methods that are similar to Fisher Score for Feature Selection?

I understand Fisher score is a feature selection methods. Are there other methods similar to Fisher score for mostly numeric variables and 2 class problems.

01 January 2016 5,871 5 View

Can I use the CO2/CO ratio to determine the condition of transformer paper insulation?

I have some DGA data that I am using to determine the over all health condition of the transformer insulation system. To determine the strength of paper insulation, I depend on Furans value or DP....

03 March 2015 631 6 View

Can anybody help me to understand the attached WEKA Clustering results?

I performed a clustering using WEKA. I got 4 clusters and a confusion matrix. When I visualized the clusters, I thought I can understand the relationship between confusion matrix and the visual...

10 October 2014 575 8 View

Oxygen content in transformer oil - any thoughts?

Transformer oil usually contains oxygen in addition to other gases. A significant portion of the Oxygen is from atmosphere entering through the defects. Apart from this, are there other reasons...

08 August 2014 1,554 4 View

What is the relationship between IFT of mineral oil and presence of CO2, CO, acidity and moisture?

A question for all chemical experts: I want to know the effect of dissolved gases such as CO, CO2, acidity and mositure on the IFT (interfacial tension) of mineral oil. For example, would I be...

08 August 2014 3,291 1 View

Can someone recommend software tools to calculate correlation?

Hi all, I have a dataset with about 20 features (numeric) in each record. I want to calculate the correlation between all these 20 features and export the results to MATLAB. I am now using Excel...

08 August 2014 4,488 4 View

How to carry out feature selection in machine learning?

I am just stepping into the research world after spending decades in industry - far away from academics. My apologies if my question is not a valid question or if the answers are already well...

03 March 2014 3,215 5 View