Nate Chambers

Assistant Professor
Department of Computer Science
United States Naval Academy

(Publishes as Nathanael Chambers)

Recent Developments

New research on dense event ordering: ACL and TACL.

Presented event schema induction at EMNLP-2013.

Undergrad research on sentiment; highly ranked at SemEval-2013

Radio interview on WNAV Dec 14

Mood of the Nation live feed posted.

Teaching

Fall 2014:SI110, Cyber Security I
Spring 2014:IC211, Object-Oriented Programming
Fall 2013:SI485i, Natural Language Processing
SI110, Cyber Security I
Spring 2013:IT452, Advanced Web & Internet Programming
Fall 2012:SI485i, Natural Language Processing
IC210, Intro to Computer Science
Spring 2012:IT452, Advanced Web & Internet Programming
Fall 2011:IT350, Web and Internet Programming

Research Interests

I research natural language processing (NLP) and learning about the world from text with minimal supervision. I apply modern NLP and machine learning techniques to the Web to learn how events and people interact. I am also interested in information extraction to help people better understand large amounts of text. I also model time: when events start, how long, and in what order they occur.

Student Collaboration

I am always open to advising undergraduate research. Come talk to me if you're interested. Topics ranging from social media like Twitter to intelligent systems that read the news are ripe for study.

Education

Ph.D., Computer Science, Stanford University, 2011

M.S., Computer Science, University of Rochester, 2003

B.S., Computer Science, University of Rochester, 2002

Selected Publications (view all 33 with downloads)

Dense Event Ordering with a Multi-Pass Architecture

TACL 2014

Event Schema Induction with a Probabilistic Entity-Driven Model

EMNLP 2013

Deterministic coreference resolution based on entity-centric, precision-ranked rules

Comp Ling

Labeling Documents with Timestamps: Learning from their Time Expressions

ACL 2012

Learning for Microblogs with Distant Supervision: Political Forecasting with Twitter

EACL 2012

Template-Based Information Extraction without the Templates

ACL 2011

A Multi-Pass Sieve for Coreference Resolution

EMNLP 2010

Unsupervised Learning of Narrative Schemas and their Participants

ACL 2009

Jointly Combining Implicit Constraints Improves Temporal Ordering

EMNLP 2008

Unsupervised Learning of Narrative Event Chains

ACL 2008

Classifying Temporal Relations Between Events

ACL 2007

PLOW: A Collaborative Task Learning Agent (outstanding paper award)

AAAI 2007

Using Semantics to Identify Web Objects

AAAI 2006

Chester: Towards a Personal Medical Advisor

Journal Biomedical Informatics

view all 33 with downloads

Data

CAEVO: Dense Event Ordering

Narrative Cloze Evaluation (Gigaword Corpus NYT labeled)

Narrative Schemas Data

Political Tweets

Document Timestamp Prediction

Pseudo-Word Evaluation Data

TimeBank Event Pairs

Event Duration Lexicon

Web Projects

Past and present web design projects I have been involved with:

A collaborative website for teachers (founder, no longer affiliated)

A website for USNA Commissioning Week house rentals.