Applying and Optimising a Multi-Scale Probit Model for Cross-Source Text Complexity Classification and Ranking in Swedish

Elsa Andersson, Johan Falkenjack, Arne Jönsson


Abstract
We present results from using Probit models to classify and rank texts of varying complexity from multiple sources. We use multiple linguistic sources including Swedish easy-to-read books and investigate data augmentation and feature regularisation as optimisation methods for text complexity assessment. Multi-Scale and Single Scale Probit models are implemented using different ratios of training data, and then compared. Overall, the findings suggest that the Multi-Scale Probit model is an effective method for classifying text complexity and ranking new texts and could be used to improve the performance on small datasets as well as normalize datasets labelled using different scales.
Anthology ID:
2025.nodalida-1.3
Volume:
Proceedings of the Joint 25th Nordic Conference on Computational Linguistics and 11th Baltic Conference on Human Language Technologies (NoDaLiDa/Baltic-HLT 2025)
Month:
march
Year:
2025
Address:
Tallinn, Estonia
Editors:
Richard Johansson, Sara Stymne
Venue:
NoDaLiDa
SIG:
Publisher:
University of Tartu Library
Note:
Pages:
17–27
Language:
URL:
https://preview.aclanthology.org/fix-sig-urls/2025.nodalida-1.3/
DOI:
Bibkey:
Cite (ACL):
Elsa Andersson, Johan Falkenjack, and Arne Jönsson. 2025. Applying and Optimising a Multi-Scale Probit Model for Cross-Source Text Complexity Classification and Ranking in Swedish. In Proceedings of the Joint 25th Nordic Conference on Computational Linguistics and 11th Baltic Conference on Human Language Technologies (NoDaLiDa/Baltic-HLT 2025), pages 17–27, Tallinn, Estonia. University of Tartu Library.
Cite (Informal):
Applying and Optimising a Multi-Scale Probit Model for Cross-Source Text Complexity Classification and Ranking in Swedish (Andersson et al., NoDaLiDa 2025)
Copy Citation:
PDF:
https://preview.aclanthology.org/fix-sig-urls/2025.nodalida-1.3.pdf