problem 1:

prepare down short notes on sub problems of discourse understanding.

problem 2:

Illustrate out in detail segmentation.

problem 3:

prepare down the various probabilistic language models.

problem 4:

Illustrate out the information retrieval systems.

problem 5:

Illustrate in detail the information extraction process.

problem 6:

Illustrate out the word segmentation algorithm.

problem 7:

Illustrate in detail about the machine translation systems.