2 papers
cs.CL2023
CommunityFish: A Poisson-based Document Scaling With Hierarchical Clustering
Sami Diaf
Document scaling has been a key component in text-as-data applications for social scientists and a major field of interest for political researchers, who aim at uncovering differen…
cs.IR2021
Topic Scaling: A Joint Document Scaling -- Topic Model Approach To Learn Time-Specific Topics
Sami Diaf, Ulrich Fritsche
This paper proposes a new methodology to study sequential corpora by implementing a two-stage algorithm that learns time-based topics with respect to a scale of document positions…