dissertation · White Rose eTheses Online (University of Leeds, The University of Sheffield, University of York) · 2002
Temporal information in newswire articles : an annotation scheme and corpus study.
Cited by 88Open access
Abstract
Many natural language processing applications, such as information extraction, question \nanswering, topic detection and tracking, would benefit significantly from the ability to \naccurately position reported events in time, either relatively with respect to other events or \nabsolutely with respect to calendrical time. However, relatively little work has been done \nto date on the automatic extraction of temporal information from text. \nBefore we can progress to automatically position reported events in time, we must gain \nan understanding of the mechanisms used to do this in language. This understanding can \nbe promoted through the development of all annotation scheme, which allows us to identify \nthe textual expressions conveying events, times and temporal relations in a corpus of 'real' \ntext. \nThis thesis describes a fine-grained annotation scheme with which we can capture all \nevents, times and temporal relations reported ill a text. To aid the application of the scheme \nto text, a graphical annotation tool has been developed. This tool not only allows easy markup \nof sophisticated temporal annotations, it also contains an interactive, inference-based \ncomponent supporting the gathering of temporal relations. The annotation scheme and the \ntool have been evaluated through the construction of a trial corpus during a pilot study. In \nthis study, a group of annotators was supplied with a description of the annotation scheme \nand asked to apply it to a trial corpus. \nThe pilot study showed that the annotation scheme was difficult to apply, but is feasible \nwith improvements to the definition of the annotation scheme and the tool. Analysis of \nthe resulting trial corpus also provides preliminary results on the relative extent to which \ndifferent linguistic mechanisms, explicit and implicit, are used to convey temporal relational \ninformation in text.
Cite this paper
Setzer, A. (2002). Temporal information in newswire articles : an annotation scheme and corpus study. White Rose eTheses Online (University of Leeds, The University of Sheffield, University of York).
Setzer, Andrea. “Temporal information in newswire articles : an annotation scheme and corpus study.” White Rose eTheses Online (University of Leeds, The University of Sheffield, University of York), 2002.
Setzer, Andrea. 2002. “Temporal information in newswire articles : an annotation scheme and corpus study.” White Rose eTheses Online (University of Leeds, The University of Sheffield, University of York).
Setzer, A. (2002) ‘Temporal information in newswire articles : an annotation scheme and corpus study’, White Rose eTheses Online (University of Leeds, The University of Sheffield, University of York).
@phdthesis{setzer2002temporal,
title = {{Temporal information in newswire articles : an annotation scheme and corpus study.}},
author = {Setzer, Andrea},
school = {White Rose eTheses Online (University of Leeds, The University of Sheffield, University of York)},
year = {2002}
}Made from the index record. Check names, capitalisation and page numbers against the paper. Need another style? AI for Research has over 10,000.