Title:   Track Join: Distributed Joins with Minimal Network Traffic

Appeared in:  SIGMOD 2014

Authors:   Orestis Polychroniou
           Rajkumar Sen
           Kenneth A. Ross


1) We found a minor error in the simululations which affects Figures 3 and 7.
   The tracking phase on 3-phase track join and 4-phase track join ignores
   the counts while it should not. In Figure 3, the correct cost is 5 bytes
   per key-count pair instead of 4 which increases the blue part by 25%,
   but nevertheless does not really affect the result. Similarly for Figure 7,
   the cost is 5 bytes instead of 4 for fixed byte encoding, 9 bytes instead
   of 7 for variable byte encoding and 32 bits instead of 30 for dictionary
   encoding. In all cases, the change affects the first phase only and is
   insignificant compared to the total.