This model has been trained on Facebook posts by Norwegian cabinet ministers of the Solberg governments (2013-2021). It was used in Karlsen, Kolltveit and Solheim (2025). The posts were hand coded specifying different roles and purposes of the posts. Below, we recreate the table 1 from the paper showing the five roles and four purposes. The model included here identifies posts where the purpose is to Mobilize. The setfit models that identify the other roles and purposes are available here. In the paper, we use one model for each purpose and each role. Each post can accordingly be ascribed to more than one purpose or role.

	Communicative purposes
Communicative roles	Informing	Communication	Mobilizing	Branding
Ministry head
Cabinet member
Party politician
Individual politician
Private person

This is a SetFit model that can be used for Text Classification of Norwegian social media posts. It uses NbAiLab/nb-sbert-base as the Sentence Transformer embedding model. A LogisticRegression instance is used for classification.

It has been trained using an efficient few-shot learning technique that involves:

Fine-tuning a Sentence Transformer with contrastive learning.
Training a classification head with features from the fine-tuned Sentence Transformer.

Model Details

Model Description

Model Type: SetFit
Sentence Transformer body: NbAiLab/nb-sbert-base
Classification head: a LogisticRegression instance
Maximum Sequence Length: 75 tokens
Number of Classes: 1

Language:

Norwegian (Bokmål)

Model Sources

Repository: SetFit on GitHub
Paper: Efficient Few-Shot Learning Without Prompts
Blogpost: SetFit: Efficient Few-Shot Learning Without Prompts

Uses

Direct Use for Inference

First install the SetFit library:

pip install setfit

Then you can load this model and run inference.

python

from setfit import SetFitModel

# Download from the 🤗 Hub
model = SetFitModel.from_pretrained("oyvindbs/setfit_minister_nb-sbert-base_Ministry-Head")
# Run inference
preds = model("I loved the spiderman movie!")

Training Details

Framework Versions

Python: 3.10.4
SetFit: 1.1.1
Sentence Transformers: 3.4.1
Transformers: 4.50.1
PyTorch: 2.5.1+cu118
Datasets: 2.19.0
Tokenizers: 0.21.0

Citation

bibtex

@article{KarlsenKolltveitSolheim,
    author = {Karlsen, Rune and Kolltveit, Kristoffer and Solheim, Øyvind Bugge},
    title = {Balancing Acts: The communicative roles of cabinet ministers on social media},
    publisher = {Media and Communication},
    year = {2025},
    volume = {13},
    doi = {https://doi.org/10.17645/mac.10416}
}

BibTeX