What are the datasets used by your references? 

Dear Sanjay,

This dataset may be useful for you: 

https://archive.ics.uci.edu/ml/datasets/Localization+Data+for+Person+Activity

Kind regards,

Olivier PARISOT

Dear Dr

http://www.cs.cmu.edu/~einat/datasets.html

http://www.pewresearch.org/data/download-datasets/

I suggest these datasets in xml format

http://www.cs.washington.edu/research/xmldatasets/