A temporal analysis of natural language narrative text

Written English texts in the form of narratives often describe events that occur in definite chronological sequence. Understanding the concept of time in such texts is an essential aspect of text comprehension and forms the basis for answering time related questions pertaining to the source text. It is our hypothesis that time in such texts is expressed in terms of temporal orderings of the situations described and can be modelled by a linear representation of these situations. This representation conforms to the traditional view of the linearity of time where it is regarded as a horizontal line called the timeline. Information indicating the temporal ordering of events is often explicitly specified in the source text. Where such indicators are missing, semantic relations between the events enforce temporal orderings. This thesis proposes and implements a practical model for automatically processing paragraphs of narrative fiction for explicit chronological information and employing certain guidelines for inferring such information in the absence of explicit indications. Although we cannot claim to have altogether eliminated the need for expensive semantic inferencing within our model, we have certainly devised guidelines to eliminate the expense in certain cases where explicit temporal indicators are missing. We have also characterized some cases through our test data where semantic inferencing proves necessary to augment the capabilities of our model.

Name thesis:degree_name

Master of Science

Level thesis:degree_level

masters

Discipline thesis:degree_discipline

Computer Science and Applications

Department dc:contributor.department

Computer Science and Applications

Grantor dc:publisher

Virginia Tech

Year dc:date.issued

1990

Author dc:creator

• Ramachandran, Venkateshwaran

Chair dc:contributor.committeechair

• Roach, John W.

Committee members dc:contributor.committeemember

• Fox, Edward A.
• McKeon, Donald W.

Statement dc:rights

• In Copyright

Licence dc:rights.uri

• http://rightsstatements.org/vocab/InC/1.0/

Language dc:language.iso

en

Dc Identifier Other

etd-03122009-040648

OAI identifier oai:identifier

oai:vtechworks.lib.vt.edu:10919/41466