KnowledgeGain: Evaluating and Optimizing Science News Generation for Reader Learning

Dominik Soós, Meng Jiang, Jian Wu


Abstract
Science news is an important medium to communicate discoveries between the research communities and the public. Yet, most metrics for generated or summarized text evaluate semantic similarity and factual consistency, but do not measure how much knowledge readers learn from the news. We introduce KnowledgeGain, a metric that evaluates the quality of science news by measuring how much knowledge the readers gained after reading it. To evaluate the metric, we first performed a controlled human study and showed that the metric successfully captures the differential knowledge gained by human readers reading different types of science media. The data allowed us to calibrate a prompt-only LLM reader simulator. We use it to rank and filter candidate articles before human evaluation. A second human study shows that articles selected with this simulator improve post-reading accuracy and normalized KnowledgeGain over a strong generation baseline. Our work is a step toward generating science news that better meets the knowledge and comprehension goals of Bloom’s Taxonomy.
Anthology ID:
2026.emnlp-main.1672
Volume:
Proceedings of the 2026 Conference on Empirical Methods in Natural Language Processing
Month:
October
Year:
2026
Address:
Budapest, Hungary
Editors:
Hung-Yi Lee, Sunipa Dev, Jessy Li, Desmond Elliott
Venue:
EMNLP
SIG:
SIGDAT
Publisher:
Association for Computational Linguistics
Note:
Pages:
38035–38055
Language:
URL:
https://aclanthology.org/2026.emnlp-main.1672/
DOI:
Bibkey:
Cite (ACL):
Dominik Soós, Meng Jiang, and Jian Wu. 2026. KnowledgeGain: Evaluating and Optimizing Science News Generation for Reader Learning. In Proceedings of the 2026 Conference on Empirical Methods in Natural Language Processing, pages 38035–38055, Budapest, Hungary. Association for Computational Linguistics.
Cite (Informal):
KnowledgeGain: Evaluating and Optimizing Science News Generation for Reader Learning (Soós et al., EMNLP 2026)
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PDF:
https://aclanthology.org/2026.emnlp-main.1672.pdf