Automatic thematic classification of election manifestos
作者:
Highlights:
• We digitized political texts from the 1980s and 1990s.
• We used these data to learn a classifier that can label more recent political texts.
• Change of themes over the years affects recall of the learned classifier.
• But precision is comparable to the precision obtained by a human expert labeller.
• For political themes, a high level of detail seems to be preferred by domain experts.
摘要
•We digitized political texts from the 1980s and 1990s.•We used these data to learn a classifier that can label more recent political texts.•Change of themes over the years affects recall of the learned classifier.•But precision is comparable to the precision obtained by a human expert labeller.•For political themes, a high level of detail seems to be preferred by domain experts.
论文关键词:Text classification,Political data,Expert evaluation
论文评审过程:Received 27 March 2013, Revised 30 August 2013, Accepted 26 February 2014, Available online 13 April 2014.
论文官网地址:https://doi.org/10.1016/j.ipm.2014.02.006