James Pustejovsky
Encyclopedia
James Pustejovsky is a TJX Feldberg professor
of computer science
at Brandeis University
in Waltham, Massachusetts
. His expertises are on Theoretical and computational modeling of language, specifically: Computational linguistics
, Lexical semantics
, Knowledge representation, temporal reasoning and Extraction
. His main topic of research is Natural language processing
.
Pustejovsky proposed Generative Lexicon
theory in lexical semantics
. His other interests include temporal
reasoning, events, information extraction
, computational linguistics
.
and Medstract projects. The TimeML project is attempting to create a standard markup language
for temporal
events in a document. The Medstract project attempts to extract information from medical documents using current natural language processing
technology.
Professor
A professor is a scholarly teacher; the precise meaning of the term varies by country. Literally, professor derives from Latin as a "person who professes" being usually an expert in arts or sciences; a teacher of high rank...
of computer science
Computer science
Computer science or computing science is the study of the theoretical foundations of information and computation and of practical techniques for their implementation and application in computer systems...
at Brandeis University
Brandeis University
Brandeis University is an American private research university with a liberal arts focus. It is located in the southwestern corner of Waltham, Massachusetts, nine miles west of Boston. The University has an enrollment of approximately 3,200 undergraduate and 2,100 graduate students. In 2011, it...
in Waltham, Massachusetts
Waltham, Massachusetts
Waltham is a city in Middlesex County, Massachusetts, United States, was an early center for the labor movement, and major contributor to the American Industrial Revolution. The original home of the Boston Manufacturing Company, the city was a prototype for 19th century industrial city planning,...
. His expertises are on Theoretical and computational modeling of language, specifically: Computational linguistics
Computational linguistics
Computational linguistics is an interdisciplinary field dealing with the statistical or rule-based modeling of natural language from a computational perspective....
, Lexical semantics
Lexical semantics
Lexical semantics is a subfield of linguistic semantics. It is the study of how and what the words of a language denote . Words may either be taken to denote things in the world, or concepts, depending on the particular approach to lexical semantics.The units of meaning in lexical semantics are...
, Knowledge representation, temporal reasoning and Extraction
Extraction
Extraction may refer to:* Extraction , an album by guitarist Greg Howe* Extraction , the separation of a substance from a matrix* Extraction , the removal of someone from a hostile area to a secure location...
. His main topic of research is Natural language processing
Natural language processing
Natural language processing is a field of computer science and linguistics concerned with the interactions between computers and human languages; it began as a branch of artificial intelligence....
.
Pustejovsky proposed Generative Lexicon
Generative Lexicon
Generative Lexicon is a theory of linguistic semantics which focuseson the distributed nature ofcompositionality in natural language. The first major work outlining the framework is James Pustejovsky's "Generative Lexicon" . Subsequent important developments are presented in Pustejovsky and...
theory in lexical semantics
Lexical semantics
Lexical semantics is a subfield of linguistic semantics. It is the study of how and what the words of a language denote . Words may either be taken to denote things in the world, or concepts, depending on the particular approach to lexical semantics.The units of meaning in lexical semantics are...
. His other interests include temporal
Time
Time is a part of the measuring system used to sequence events, to compare the durations of events and the intervals between them, and to quantify rates of change such as the motions of objects....
reasoning, events, information extraction
Information extraction
Information extraction is a type of information retrieval whose goal is to automatically extract structured information from unstructured and/or semi-structured machine-readable documents. In most of the cases this activity concerns processing human language texts by means of natural language...
, computational linguistics
Computational linguistics
Computational linguistics is an interdisciplinary field dealing with the statistical or rule-based modeling of natural language from a computational perspective....
.
Current research
Pustejovsky's research group's current projects include the TimeMLTimeML
TimeML is a set of rules for encoding documents electronically. It is defined in the developed by several efforts, lead in large part by the Laboratory for Linguistics and Computation at Brandeis University....
and Medstract projects. The TimeML project is attempting to create a standard markup language
Markup language
A markup language is a modern system for annotating a text in a way that is syntactically distinguishable from that text. The idea and terminology evolved from the "marking up" of manuscripts, i.e. the revision instructions by editors, traditionally written with a blue pencil on authors' manuscripts...
for temporal
Time
Time is a part of the measuring system used to sequence events, to compare the durations of events and the intervals between them, and to quantify rates of change such as the motions of objects....
events in a document. The Medstract project attempts to extract information from medical documents using current natural language processing
Natural language processing
Natural language processing is a field of computer science and linguistics concerned with the interactions between computers and human languages; it began as a branch of artificial intelligence....
technology.