Publications

Google Scholar Page

• Provable Accuracy Collapse of Embedding-Based Representations under Dimensionality Mismatch
  Dionysis Arvanitakis, Vaggos Chatziafratis, Yiyuan Luo
  ICML 2026 Spotlight
  [Paper]
• Optimal Phylogenetic Reconstruction from Sampled Quartets
  Dionysis Arvanitakis, Vaggos Chatziafratis, Yiyuan Luo, Konstantin Makarychev
  STOC 2026
  [Paper]
• The Complexity of Finding Local Optima in Contrastive Learning
  Jingming Yan*, Yiyuan Luo*, Vaggos Chatziafratis, Ioannis Panageas, Parnian Shakhar, Stelios Andrew Stavroulakis
  NeurIPS 2025
  [Paper]