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Measuring the significance of policy outputs with positive unlabeled learning

Abstract:
Identifying important policy outputs has long been of interest to political scientists. In this work, we propose a novel approach to the classification of policies. Instead of obtaining and aggregating expert evaluations of significance for a finite set of policy outputs, we use experts to identify a small set of significant outputs and then employ positive unlabeled (PU) learning to search for other similar examples in a large unlabeled set. We further propose to automate the first step by harvesting ‘seed’ sets of significant outputs from web data. We oer an application of the new approach by classifying over 9,000 government regulations in the United Kingdom. The obtained estimates are successfully validated against human experts, by forecasting web citations, and with a construct validity test.
Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1017/S000305542000091X

Authors


More by this author
Institution:
University of Oxford
Division:
SSD
Sub department:
Politics & Int Relations
Role:
Author
More by this author
Institution:
University of Oxford
Division:
SSD
Department:
Politics & Int Relations
Role:
Author
More by this author
Institution:
University of Oxford
Division:
SSD
Department:
Politics & Int Relations
Role:
Author


Publisher:
Cambridge University Press
Journal:
American Political Science Review More from this journal
Volume:
115
Issue:
1
Pages:
339 - 346
Publication date:
2020-10-19
Acceptance date:
2020-08-31
DOI:
EISSN:
1537-5943
ISSN:
0003-0554


Language:
English
Keywords:
Pubs id:
1129721
Local pid:
pubs:1129721
Deposit date:
2020-09-02

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