Rather, if you are willing to s, we suggest that you stay close to the Journal Square PATH Station and take the PATH train to Exchange Place (7 minutes ride, $2.75 per ride), which is a 5 minutes walk to the conference site. You can also consider the lodging options in Manhattan near the World Trade Center PATH Station (7 minutes ride, $2.75 per ride), but this is likely to be significantly more expensive than anything in Jersey City.
Here are the two hotels close to the Journal Square Station:
These are cheaper options, but you get what you pay for: neither nice nor quiet.
65 Tonnelle Ave, Jersey City, NJ 07306
tel: (201) 432-6100
789 Newark Ave, Jersey City, NJ 07306
(201) 685-7770F