Funding for this research was provided by:
Israel Science Foundation (1696/14, 1078/17)
United States - Israel Binational Science Foundation (2015803)
Division of Computing and Communication Foundations (CCF-1527110, CCF-1618280)
Article History
Received: 27 January 2018
Accepted: 15 September 2018
First Online: 26 September 2018