Funding for this research was provided by:
LinkedIn partially supported the work through the Economic Graph Research program.
S.G. is an employee of LinkedIn and his involvement in the project was supported by LinkedIn.
S.G. was an employee of LinkedIn and his involvement in the project was supported by LinkedIn.
Received: 13 February 2019
Accepted: 11 July 2019
First Online: 1 August 2019
: J.P., I.W., E.J., A.N. and Y.A. are in part supported by LinkedIn through the Economic Graph Challenge program. M.C. is a former employee of LinkedIn, and I.W. and S.G. are current employees of LinkedIn.