P1SCO: New Dataset Captures Social Media Perceptions Across Platforms and Demographics
Researchers have introduced P1SCO, a dataset of social media comments from three platforms annotated across ten social dimensions, with detailed annotator metadata including demographics, personality profiles, and political affiliation. The dataset is designed to preserve individual annotator perspectives rather than collapsing them into consensus labels, supporting a 'perspectivist' approach to annotation. It aims to enable more nuanced NLP research into how personal and demographic factors shape the interpretation of online social interactions.
P1SCO is a newly released dataset collecting social media comments from three distinct platforms, each comment annotated according to ten social dimensions intended to capture the breadth of human social interaction and perception. A key design choice is disaggregation: annotations are preserved at the level of individual comments, individual annotators, and platforms, rather than being aggregated into a single ground-truth label. Annotators' metadata is richly documented, encompassing demographic information, Big Five personality trait scores, and political affiliation, allowing researchers to study how these factors correlate with social interpretation. This structure supports analyses of inter- and intra-annotator agreement, cross-platform discourse dynamics, and the influence of personality or political orientation on how social content is perceived. The dataset reflects a broader 'perspectivist' movement in NLP that challenges the assumption of a single correct annotation, instead treating disagreement as meaningful signal. The work was submitted to arXiv in late May 2026 and updated in early June 2026.
What's missing
The abstract does not specify the total size of the dataset (number of comments or annotators), the specific platforms from which comments were collected, how annotators were recruited or compensated, or whether the dataset has undergone ethical review for privacy and consent. The ten social dimensions themselves are not enumerated, making it difficult to assess coverage. Inter-annotator agreement baselines and any benchmark tasks or models trained on the data are also absent from the description.
What different sources said
- arXiv cs.CLCenter
P1SCO: Social Dimensions from a Perspectivist Lens
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