Hi, 
My name is Wei Wang, and I am lucky to be able to as the student for GSoC19 Boost::ublas library. My project is to build a data structure work like pandas.DataFrame or dataframe in R. As I found on GSoC's website, my mentor will be Bellot, and I'm very glad. 
I have two questions related to logistics: 
(1) Where should I work for the code? I find an empty organization in Github(https://github.com/BoostGSoC19), but I'm still not sure how I gonna submit them. 
(2) Should I fork the whole ublas project? Or simply start build my own project directly under boost/numeric/ublas? 
Another two questions related to project requirement: 
(1) I have read one implementation from one previous student (https://github.com/BoostGSoC17/data_frame), which is pretty good. But it somehow goes against my idea. Is it okay to start a new project? 
And also I'd like to ask what's your expectation from this project? 
I'm targeting at pandas.DataFrame(though it won't be that full-featured), but the basics are:
- indexing
- slicing
- sort based on col
- relation ops like select, join
- set operations on rows like union, set diff, intersect
- group (possibly)
(2) What should I show in my final submit? Will it be evaluated on whether my code is able to merge? Or simply I will be provided some test case and see if I can pass them? 

Cheers, 
Wei