The shortest path I've identified from me to Paul Erdős has 3 steps.
|1||Shmuel Zaks||Paul Erdős, Israel Koren, Shlomo Moran, Gabriel M. Silberman, Shmuel Zaks. Minimum-diameter cyclic arrangements in mapping data-flow graphs onto VLSI arrays. 1988
||2||Martin Farach-Colton||Martin Farach-Colton, Antonio Fernandez Anta, Alessia Milani, Miguel A Mosterio, Shmuel Zaks. Opportunistic Information Dissemination in Mobile Ad-hoc Networks: Adaptiveness vs. Obliviousness and Randomization vs. Determinism. 2012.
||3||Donald E. Porter||William Jannen, Jun Yuan, Yang Zhan, Amogh Akshintala, John Esmet,
Yizheng Jiao, Ankur Mittal, Prashant Pandey, Leif Walsh, Michael Bender,
Martin Farach-Colton, Rob Johnson, Bradley C. Kuszmaul, and Donald E. Porter. BetrFS: A Right-Optimized Write-Optimized File System. 2015.
Of course, I'd be much obliged to anyone who identified a shorter path.
To learn more about Erdős numbers, look here.