ttda704 at SemEval-2026 Task 4: Modeling Narrative Structures via Pseudonymization and Multi-View Sentence Alignment

Tai Tran Tan, An Thien


Abstract
We present our approach to SemEval 2026 Task 4: Narrative Story Similarity and Narrative Representation Learning. Our solution uses contrastive learning with fine-tuned sentence transformers to capture narrative similarity across abstract themes, course of action, and outcomes. We develop two pipelines: (Track A) a single-view method that encodes full narratives with smart layer freezing to reduce overfitting, and (Track B) a multi-view method that models theme, plot, and outcome with view-specific projection heads and self-supervised alignment. Both pipelines build on sentence-transformers models and are trained with contrastive loss on synthetic data. The code is available at the following GitHub repository: https://github.com/dinhthienan33/SemEval2026-Task4-ttda704.
Anthology ID:
2026.semeval-1.353
Volume:
Proceedings of the 20th International Workshop on Semantic Evaluation (2026)
Month:
July
Year:
2026
Address:
San Diego, California, USA
Editors:
Ekaterina Kochmar, Debanjan Ghosh, Kai North, Mamoru Komachi
Venues:
SemEval | WS
SIG:
Publisher:
Association for Computational Linguistics
Note:
Pages:
2800–2809
Language:
URL:
https://preview.aclanthology.org/ingest-acl-workshops/2026.semeval-1.353/
DOI:
Bibkey:
Cite (ACL):
Tai Tran Tan and An Thien. 2026. ttda704 at SemEval-2026 Task 4: Modeling Narrative Structures via Pseudonymization and Multi-View Sentence Alignment. In Proceedings of the 20th International Workshop on Semantic Evaluation (2026), pages 2800–2809, San Diego, California, USA. Association for Computational Linguistics.
Cite (Informal):
ttda704 at SemEval-2026 Task 4: Modeling Narrative Structures via Pseudonymization and Multi-View Sentence Alignment (Tran Tan & Thien, SemEval 2026)
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PDF:
https://preview.aclanthology.org/ingest-acl-workshops/2026.semeval-1.353.pdf
Supplementarymaterial:
 2026.semeval-1.353.SupplementaryMaterial.zip
Supplementarymaterial:
 2026.semeval-1.353.SupplementaryMaterial.zip