Rajesh Kumar

5 Questions 12 Answers 0 Followers

Questions related from Rajesh Kumar

What is the best way to compare two accelerometer signals?

Let there are two individuals A, and B. Both walk in the same environment but different sessions. Their walking pattern is captured by accelerometer built into a smartphone. The accelerometer...

13 June 2018 3,748 7 View

How can we scale classification scores obtained from one-class classifiers, novelty and outlier detectors?

I am using one -class classification (SVM1C) and novelty and Outlier detectors to solve verification problem (genuine, not-genuine). I have the following situation. (1) gen_training_samples...

18 October 2017 1,181 1 View

Could anything go wrong in clustering data using 100+ features and Euclidean distance?

Is there anything wrong with the following process? Raw Data-> Features(100+) -> k-means(Features, EucAsklidean) -> Clusters Thanks!

09 June 2017 237 3 View

What is the best way to show the tradeoff between FAR and FAR of a bio-metric system when user specific thresholds are used?

Hi everyone, As we know ROC curve is used to show the possible tradeoffs between the false accept rate and false reject rate when we have a global threshold set for all users. However, in some...

23 September 2015 7,942 10 View

Which are the best methods for feature selection, especially from features which are extracted from time-series data collected by using sensors?

Hello colleagues, I have seen researchers in my area (biometrics) mostly use the following feature selection methods: Info gain, cfs subset selection, mutual information, KS test, or PCA or any...

31 July 2015 3,325 5 View