running experiments r2

Profiling:

Interesting to notice:

Getting user's neighborhood now takes the majority of time (46%)
TODO: This could be a good spot to optimize

Suprisingly: in user correlation getNumItems takes the majority of item
TODO: Not sure why - Investigate

Profiling

Profiled getUserNeighborhood in more detail.  Vast majority of time is spent executing the query.

TODO: Improve this part

Enhancements

Added more properties that will be loaded from the file