data analysis
BLOG
ANALYTICS & COGNITIVE

This piece of data is lying (2/2)

In the first part, some strange conclusions appeared to be drawn from data. Let’s try to explain what happened.

Folding/Aliasing

We analyzed a sequence of data (people entering a mall, measured every 7 minutes during the day for a month) that we assumed to be periodic. So we “converted” our data from time to frequency to identify the rush periods (and we “converted” it back to check how close we were). [...]

 

To read the full post and add comments, please visit the SogetiLabs blog
This piece of data is lying (2/2).

Claude Bamberger
Claude Bamberger
Information systems architect
+33 1 40 93 73 00