This is such a great optimization problem. I wonder what the best way to fill in the relation matrix. Besides setting a few key entries to the maximum value as they did in the paper (couples, immediate family of the couple being married, etc), I’m guessing some good features would be:
My sister is getting married in April. I might try this out if I have the time.
Via @tdhopper
year. In case they need help,...think I’m going to point them to this.