Research interests

Party press releases

Organization Card
About org cards


Here we maintain the Transformer classifiers trained on the PARTYPRESS database (Erfort et al. 2023).

The models are fine-tuned in seven languages on texts from nine countries (Austria, Denmark, Germany, Ireland, Netherlands, Poland, Spain, Sweden, UK).

For the downstream task of classyfing press releases from political parties into 23 unique policy areas, we achieve a performance comparable to expert human coders.


The PARTYPRESS models have a supervised component. This means, they were fine-tuned using texts labeled by humans. The labels indicate 23 different political issue categories derived from the Comparative Agendas Project (CAP):

Code Issue
1 Macroeconomics
2 Civil Rights
3 Health
4 Agriculture
5 Labor
6 Education
7 Environment
8 Energy
9 Immigration
10 Transportation
12 Law and Crime
13 Social Welfare
14 Housing
15 Domestic Commerce
16 Defense
17 Technology
18 Foreign Trade
19.1 International Affairs
19.2 European Union
20 Government Operations
23 Culture
98 Non-thematic
99 Other


There are both monolingual models for each of the countries covered by the PARTYPRESS database, and a multilingual model trained press releases from all countries. The models can be easily extended to other languages, country contexts, or time periods by fine-tuning it with minimal additional labeled texts.

Intended uses & limitations

The main use of the model is for text classification of press releases from political parties. It may also be useful for other political texts.

The classification can then be used to measure which issues parties are discussing in their communication.

BibTeX entry and citation info

  author    = {Cornelius Erfort and
               Lukas F. Stoetzer and
               Heike Klüver},
  title     = {The PARTYPRESS Database: A New Comparative Database of Parties’ Press Releases},
  journal   = {Research and Politics},
  volume    = {forthcoming},
  year      = {2023},

Further resources

Github: cornelius-erfort/partypress

Research and Politics Dataverse: Replication Data for: The PARTYPRESS Database: A New Comparative Database of Parties’ Press Releases


Research for this contribution is part of the Cluster of Excellence "Contestations of the Liberal Script" (EXC 2055, Project-ID: 390715649), funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany's Excellence Strategy. Cornelius Erfort is moreover grateful for generous funding provided by the DFG through the Research Training Group DYNAMICS (GRK 2458/1).


Cornelius Erfort

Humboldt-Universität zu Berlin


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