1. Director, Proteus Project Research in Natural Language Processing
Prof. Ralph Grishman
Director, Proteus Project
Research in Natural Language Processing
NYU Proteus Project
Information Extraction:
finding information in text about specified
types of events and populating a data base
George Garrick, 40 years old, president of the London-based European Information Services Inc., was appointed chief executive officer of Nielsen Marketing Research, USA.

2. Web site: nlp.cs.nyu.edu The challenge of Information Extraction:
finding the many ways an event may be described
appointed
George Garrick was named to the position of CEO
selected as the next
will join the firm as
Our group is developing strategies to learn these different forms automatically.
Web site:
nlp.cs.nyu.edu
Approaches …
supervised learning:
annotate a lot of examples and train a model
semi-supervised learning:
annotate a few examples and
find more examples automatically from the Web
(rely on complementary features)
active learning:
select examples to ask the user about …
minimize the information the user must provide