implement GetRemovalEffectValue #6
Description
Similar to GetLastTouchpointValue, implement a function GetRemovalEffectValue that calculates the value of a given touchpoint by calculating its removal effect.
For details see:
Nikolay Archak, Vahab S. Mirrokni, and S. Muthukrishnan. 2010. Mining advertiser-specific user behavior using adfactors. In Proceedings of the 19th international conference on World wide web (WWW ’10). Association for Computing Machinery, New York, NY, USA, 31–40. DOI:https://doi.org/10.1145/1772690.1772695
and
Anderl, Eva and Becker, Ingo and Wangenheim, Florian V. and Schumann, Jan Hendrik, Mapping the Customer Journey: A Graph-Based Framework for Online Attribution Modeling (October 18, 2014). Available at SSRN: https://ssrn.com/abstract=2343077 or http://dx.doi.org/10.2139/ssrn.2343077