Speedup with respect to the number of
servers in Star Student Project Landmarks. X-axis: Star
Student Project the number of servers; y-axis: speedup. Lines
Direct distribution Method Star Student Project. Frequency
distribution Lossless distribution Star Student Project.
Lossy distribution . Lossy distribution with log . Local indexing
Star Student Project. The performance is based on Star
Student Project concurrent queries on average, with different
settings of Star Student Project servers.