Joint Call for Participation and PapersPolEval 2026: The Evaluation Campaign for Natural Language Processing Tools for Polish
We invite researchers, students, and practitioners from academia and industry to participate in PolEval 2026 <https://poleval.pl/>, a shared-task evaluation campaign dedicated to advancing Polish Natural Language Processing, and to submit papers describing their systems, methods, and results. Since 2017, PolEval has provided a platform for developing, testing, and comparing NLP systems for Polish. Over the years, the campaign has covered a wide range of NLP and speech-processing challenges and attracted more than 140 systems from academic research groups and private companies. The 2026 edition is hosted by the Slavic NLP 2027 <https://slavicnlp.github.io/index.html> workshop and features five shared tasks addressing different challenges in Polish document understanding, text analysis, and LLM evaluation. PolEval 2026 Shared Tasks Task 1: PolOCRBench: Polish Document Understanding <https://poleval.pl/tasks/task1> Task 2: Polish Language Document Layout Detection <https://poleval.pl/tasks/task2> Task 3: Adversarial Style Modification: Probing the Human-AI Perception Gap <https://poleval.pl/tasks/task3> Task 4: Reverse PolEval: Diagnostic Benchmark Design for Polish LLMs <https://poleval.pl/tasks/task4> Task 5: PoLiS: Polish Linguistic Skills <https://poleval.pl/2026/tasks/polis/> Detailed descriptions, datasets, evaluation procedures, and task-specific instructions are available on the PolEval 2026 website <https://poleval.pl/> . How to Participate Participants are invited to select one or more tasks, develop their systems, and submit their solutions for evaluation. Details of the submission process and the evaluation platform will be published at https://poleval.pl/2026/results/. Important Dates – Shared Task Participation - October 16, 2026: First call for participation & release of task descriptions, training data, and Test A data. - December 8, 2026: Release of Test B data. - December 17, 2026: Announcement of final results (Test B) Call for Papers We also invite all PolEval 2026 participants to submit papers describing their approaches, systems, experiments, and results. Papers should explain the methods used, report evaluation results, and discuss the strengths and limitations of the proposed solutions. We also encourage authors to share insights gained during the development and evaluation process. Accepted papers will be published in a volume dedicated to PolEval 2026 in the ACL Anthology (similarly to PolEval 2025 <https://aclanthology.org/events/poleval-2025/>). Further information about paper submission, formatting requirements, reviewing and publication is available on the PolEval publication page <https://poleval.pl/2026/publication/>. Important Dates – Papers - October 16, 2026: First call for papers - January 4, 2027: Paper submission deadline - January 4–17, 2027: Reviewing period - January 18, 2027: Notification of acceptance - January 30, 2027: Camera-ready paper deadline Publication in the Slavic NLP Workshop Proceedings As PolEval 2026 is hosted by the Slavic NLP Workshop, the winners of the shared tasks will also be invited to collaborate with the task organisers on overview papers dedicated to their respective tasks. These papers will be submitted for publication in the Slavic NLP Workshop proceedings and will follow the workshop's submission deadlines and publication requirements. Website: https://poleval.pl/ Task submission information: https://poleval.pl/2026/results/ Paper submission and publication information: https://poleval.pl/2026/publication/ Sincerely, The PolEval 2026 Organisers
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