4 papers
Leader-driven or Leaderless: How Participation Structure Sustains Engagement and Shapes Narratives in Online Hate Communities
Rr. Nefriana, Muheng Yan, Rebecca Hwa +1
Extremist communities increasingly rely on social media to sustain and amplify divisive discourse. However, the relationship between their internal participation structures, audien…
Mirroring Minds: Asymmetric Linguistic Accommodation and Diagnostic Identity in ADHD and Autism Reddit Communities
Saad Mankarious, Nour Zeid, Iyad Ait Hou +2
Social media research on mental health has focused predominantly on detecting and diagnosing conditions at the individual level. In this work, we shift attention to \emph{intergrou…
Polysemanticity or Polysemy? Lexical Identity Confounds Superposition Metrics
Iyad Ait Hou, Rebecca Hwa
If the same neuron activates for both "lender" and "riverside," standard metrics attribute the overlap to superposition--the neuron must be compressing two unrelated concepts. This…
Parameter-Efficient Token Embedding Editing for Clinical Class-Level Unlearning
Iyad Ait Hou, Shrenik Borad, Harsh Sharma +3
Machine unlearning is increasingly important for clinical language models, where privacy regulations and institutional policies may require removing sensitive information from depl…