AFourP at SemEval-2026 Task 2: Predicting Variation in Emotional Valence and Arousal over Time from Ecological Essays

Shrika Thota; Lakshmi Priya Swaminatha Rao; Shivaanee Sk; Thirumurugan Ra; Vishal Muralidharan; Dhannya Santhakumari Madhavan

AFourP at SemEval-2026 Task 2: Predicting Variation in Emotional Valence and Arousal over Time from Ecological Essays

Shrika Thota, Lakshmi Priya Swaminatha Rao, Shivaanee Sk, Thirumurugan Ra, Vishal Muralidharan, Dhannya Santhakumari Madhavan

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Abstract

We describe our submission to SemEval-2026 Task 2 (Subtask 1), which asks systems to predict continuous Valence and Arousal scores from ecological diary texts. We fine-tune RoBERTa-base with a single linear regression head, treating each essay independently. Our system scores rcomposite of .679 (Valence) and .466 (Arousal) on the official test set, placing 4th on the Subtask 1 leaderboard.

Anthology ID:: 2026.semeval-1.217
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:: 1695–1700
Language:
URL:: https://aclanthology.org/2026.semeval-1.217/
DOI:
Bibkey:
Cite (ACL):: Shrika Thota, Lakshmi Priya Swaminatha Rao, Shivaanee Sk, Thirumurugan Ra, Vishal Muralidharan, and Dhannya Santhakumari Madhavan. 2026. AFourP at SemEval-2026 Task 2: Predicting Variation in Emotional Valence and Arousal over Time from Ecological Essays. In Proceedings of the 20th International Workshop on Semantic Evaluation (2026), pages 1695–1700, San Diego, California, USA. Association for Computational Linguistics.
Cite (Informal):: AFourP at SemEval-2026 Task 2: Predicting Variation in Emotional Valence and Arousal over Time from Ecological Essays (Thota et al., SemEval 2026)
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PDF:: https://aclanthology.org/2026.semeval-1.217.pdf

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@inproceedings{thota-etal-2026-afourp,
    title = "{AF}our{P} at {S}em{E}val-2026 Task 2: Predicting Variation in Emotional Valence and Arousal over Time from Ecological Essays",
    author = "Thota, Shrika  and
      Swaminatha Rao, Lakshmi Priya  and
      Sk, Shivaanee  and
      Ra, Thirumurugan  and
      Muralidharan, Vishal  and
      Santhakumari Madhavan, Dhannya",
    editor = "Kochmar, Ekaterina  and
      Ghosh, Debanjan  and
      North, Kai  and
      Komachi, Mamoru",
    booktitle = "Proceedings of the 20th {I}nternational {W}orkshop on {S}emantic {E}valuation (2026)",
    month = jul,
    year = "2026",
    address = "San Diego, California, USA",
    publisher = "Association for Computational Linguistics",
    url = "https://aclanthology.org/2026.semeval-1.217/",
    pages = "1695--1700",
    ISBN = "979-8-89176-414-9",
    abstract = "We describe our submission to SemEval-2026 Task 2 (Subtask 1), which asks systems to predict continuous Valence and Arousal scores from ecological diary texts. We fine-tune RoBERTa-base with a single linear regression head, treating each essay independently. Our system scores rcomposite of .679 (Valence) and .466 (Arousal) on the official test set, placing 4th on the Subtask 1 leaderboard."
}

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%0 Conference Proceedings
%T AFourP at SemEval-2026 Task 2: Predicting Variation in Emotional Valence and Arousal over Time from Ecological Essays
%A Thota, Shrika
%A Swaminatha Rao, Lakshmi Priya
%A Sk, Shivaanee
%A Ra, Thirumurugan
%A Muralidharan, Vishal
%A Santhakumari Madhavan, Dhannya
%Y Kochmar, Ekaterina
%Y Ghosh, Debanjan
%Y North, Kai
%Y Komachi, Mamoru
%S Proceedings of the 20th International Workshop on Semantic Evaluation (2026)
%D 2026
%8 July
%I Association for Computational Linguistics
%C San Diego, California, USA
%@ 979-8-89176-414-9
%F thota-etal-2026-afourp
%X We describe our submission to SemEval-2026 Task 2 (Subtask 1), which asks systems to predict continuous Valence and Arousal scores from ecological diary texts. We fine-tune RoBERTa-base with a single linear regression head, treating each essay independently. Our system scores rcomposite of .679 (Valence) and .466 (Arousal) on the official test set, placing 4th on the Subtask 1 leaderboard.
%U https://aclanthology.org/2026.semeval-1.217/
%P 1695-1700

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Markdown (Informal)

[AFourP at SemEval-2026 Task 2: Predicting Variation in Emotional Valence and Arousal over Time from Ecological Essays](https://aclanthology.org/2026.semeval-1.217/) (Thota et al., SemEval 2026)

AFourP at SemEval-2026 Task 2: Predicting Variation in Emotional Valence and Arousal over Time from Ecological Essays (Thota et al., SemEval 2026)

ACL

Shrika Thota, Lakshmi Priya Swaminatha Rao, Shivaanee Sk, Thirumurugan Ra, Vishal Muralidharan, and Dhannya Santhakumari Madhavan. 2026. AFourP at SemEval-2026 Task 2: Predicting Variation in Emotional Valence and Arousal over Time from Ecological Essays. In Proceedings of the 20th International Workshop on Semantic Evaluation (2026), pages 1695–1700, San Diego, California, USA. Association for Computational Linguistics.