HCDS & LT to Co-Organize Two Shared Tasks at SemEval 2026

5 September 2025, by Janis-Marie Paul

Photo: Janis-Marie Paul

The International Workshop on Semantic Evaluation (SemEval) is one of the most popular venues in the NLP community for advancing methods through shared tasks. For SemEval 2026, the Language Technology group (LT) and the Hub of Computing and Data Science (HCDS) are proud to co-organize two tasks.

Task 4: Narrative Story Similarity and Narrative Representation Learning:

This task challenges systems to identify narratively similar stories. Narrative similarity is defined along three core dimensions:

• Abstract Theme: ideas and motives of the story
• Course of Action: sequence of central events and turning points
• Outcomes: results and resolutions of the story

The task is organized in collaboration with the fortext lab and Toloka AI.
Organizers: Hans Ole Hatzel, Ekaterina Artemova, Haimo Stiemer, Evelyn Gius & Chris Biemann.

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Task 9: Detecting Multilingual, Multicultural and Multievent Online Polarization:

This task addresses a socially urgent and computationally complex challenge: how to detect, classify, and explain online polarization across languages, cultures, and events. It covers over 20 languages, including German, Spanish, English, Arabic, Hausa, Urdu, Amharic, Italian, Russian, Myanmar, Chinese, Nepali, Hindi, Telugu, Persian, Turkish, Bangla, Somali, Emakhuwa, Mozambican Portuguese, Igbo (Nigeria), Khmer, Odia, Punjabi. Subtasks:

1. Polarization Detection
2. Polarization Type Classification
3. Manifestation Identification

Organizers: Usman Naseem, Seid Muhie Yimam, Shamsuddeen H. Muhammad, Robert Geislinger, Rudy Alexandro Garrido Véliz, Sarah Kohail, Saba Anwar, Marco Antonio Stranisci, Simona Frenda, Alessandra Teresa Cignarella, Afrozah Nadeem, Aisha Jabr, Elena Oleg, Aung Kyaw Htet, Xintong Wang, Surendrabikram Thapa, Tanmoy Chakraborty, Md. Arfeen Zeeshan, Dheeraj Kodati, Sahar Moradi, Saleh Afzoon, Cengiz Özge Alacam, Cengiz Acarturk, Emre Gülsoylu, Cagri Coltekin, Firoj Alam, Md Arid Hasan, Syed Ishtiaque Ahmed, Kyaw Thu Ye, Shantipriya Parida, Satya Ranjan Dash, Ihsan Ayyub Qazi, Zafar Qazi, Chaimaka Chukweneke, Oumaima Hourrane, Abigail Oppong, Rooweither Mabuya, Houssein Ahmed, Felermino Ali, Adem Chanie Ali, Abinew Ali Ayele, P Sam Sahil, Idris Abdulmumin, Ibrahim Said Ahmad, Martin Semmann & Chris Biemann.

More Info & Registration