Unstructured Text to Structured Data

Question

I am looking for references (tutorials, books, academic literature) concerning structuring unstructured text in a manner similar to the google calendar quick add button.

Answer 1

After some researching I have found that this problem is commonly referred to as Information Extraction and have amassed a few papers and stored them in a Mendeley Collection

http://www.mendeley.com/research-papers/collections/3237331/Information-Extraction/

Also as Tai Weiss noted NLTK for python is a good starting point and this chapter of the book, looks specifically at information extraction