John W. Sheppard

Evaluation and Explainability of Unsupervised Scholarly Collaboration Recommendations

This paper compares three families of methods: a TF-IDF baseline, topic-based models (LDA and BERTopic, including clone variants), and embedding-based retrieval using SciBERT with Faiss, and examines explainability through two perspectives: intrinsic topic-based explanations and post-hoc, retrieval-based explanations g...