arXiv Machine Learning
Jun 9

Measuring a hate speech spectrum with faceted Rasch item response theory and perspective-aware, explainable-by-design deep learning

arXiv:2009. 10277v2 Announce Type: replace-cross Abstract: We propose a system for measuring hate speech on a continuous, interval-valued spectrum ranging from genocidal to supportive speech by combining supervised deep learning with faceted Rasch item response theory (IRT).

By Chris J. Kennedy, Geoff Bacon, Alexander Sahn, Claudia von Vacano
arXiv AI
Sep 2

ValueGraph: Value-Signal Guided Graph Pre-training for Contextualized User Representation

ValueGraph is a graph pre‑training framework that incorporates automatically inferred moral‑value signals as soft constraints to learn contextualized user representations. By constructing post‑reply graphs, it captures both semantic and structural information and aligns users through contrastive and clustering objectives based on relative value similarity. Experiments on stance detection and Twitter bot detection demonstrate consistent improvements over strong text‑based, graph‑based, and LLM baselines, underscoring the benefit of value‑signal guidance for socially informed user modeling.

By Yitong Han, Wei Gao, Yi Zhao, Prasanta Bhattacharya, Fengzhu Zeng, Mohammad Amanlou
Hugging Face Trending Papers
Jun 22

Learning Moral Diversity: Modelling Individual Perspectives in Moral Classification of Texts

Understanding moral values in social media text offers insight into moral judgement formation, and supervised NLP models trained on crowdsourced data have achieved strong classification performance. However, most approaches simplify the problem by aggregating multiple annotators' labels into a single "ground truth", overlooking the inherent subjectivity of the task.