Headlines You Won't Forget: Can Pronoun Insertion Increase Memorability?

This is the data repository for the CMCL 2026 paper "Headlines You Won't Forget: Can Pronoun Insertion Increase Memorability?" The zip-file "LLM revisions and Annotations" contains three files: annotation_samples.json and annotation_samples_2.json contain all LLM-revisions.annotations_of_LLM_revisions.json contains the non-aggregated annotation data for all LLM-revisions. Annotations for accuracy_subclass are ordered as follows: [misrepresentation, omission, addition]. Annotations for style subclass are ordered as [grammar, awkward style, inconsistent]. In the zip-file "Memory Experiment Data", we provide non-aggregated results of the memory experiment (experiment_data.json), as well as the recalled items matched to their respective headline id's (headline_items_matched). headlines.json provides information about the revision type, and group assignment of headline items. We further provide aggregated results in csv-files. Files for each study are provided in separate sub-directories. If you use this dataset in your research please cite the paper.