Muddiest Point

Muddiest Point:
   I am not quite understand the  Darwish's Probabilistic structured query.

Unit 10 Muddiest point and Reading notes.

Muddiest point:

I am fine with this class.

Unit 9 Muddiest point and Reading notes

Muddiest point:

I am fine with the guest speaker's speech .

Unit 8 Muddiet Point and Reading Notes

Muddist Point：

I am fine with this class.

Unit 7 Muddiest point and Reading notes

Muddist Point:

I am Ok with last week's class.

Unit 6 Muddiest Points and Reading notes

Muddiest Point:

I am fine with this class,and I do not have the muddiest point.

Unit5 Muddiest point and Reading notes

Muddiest Point:

1. Why the rank document related with the angle between query and document？