Deepdive is a factor graph. I think one of the coolest uses of Deepdive has been MEMEX, which tries to identify personal ads that correlate strongly with human trafficking.

Each deepdive application is broken down into 3 main things

• app.ddlog
• db.url
• deepdive.conf

There are three folders in an app

• input/ -> Stores all the input data for the application either in a *.tsj or a *.tsj.sh
• run/ -> Stores the run with a timestamp for all log and output files
• udf/ -> Stores all the user defined functions refrenced in app.ddlog

More about the Math

• Explanation of Factor Graphs + Microsoft’s TrueSkill Algorithm
  • More Math

• Explanation of Bayesian Statistics

• How factor graphs are used by deepdive