CCG grammar

I have never heard this grammar before.
In today's discussion meeting , I know this.
I will take a look at it in the future.

phrase alignment using posterior regularization

EM algorithm for phrase alignment training usually leads to degeneracy. How to design a posterior constraints to solve this problem ? If I can design efficient constraints , I can use the PR framework to solve this problem.

Posterior vs. Parameter Sparsity in Latent Variable Models

The author study the POS problem using the posterior regularization framework. what's the result for the grammar
induction problem ?  I will study this problem if I have time .

interested in semantic parsing

One of the ultimate goals in the field of natural language processing (NLP), as
an important subfield of artificial intelligence, is to enable computers to converse
with humans through the media of human natural language. To achieve this goal,
two important issues need to be studied. First, it is important for computers to
accurately capture the complete underlying semantics of natural language sen-
tences. Second, the computers should be able to accurately produce meaningful
human-understandable natural language sentences from certain given semantics.
These two tasks are usually referred to as semantic parsing and natural language
generation respectively in the NLP field.