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Christos Thrampoulidis

13 papers at tracked venues · 13 at CORE A* · active 2024–2026

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Venues

ICLR ×4NeurIPS ×4AAAI ×2ACL ×1CVPR ×1ICML ×1

Frequent coauthors

Wenlong Deng
×4
Xiaoxiao Li
×4
Vala Vakilian
×3
Minghui Chen
×2
Sadegh Mahdavi
×2
Muchen Li
×2
Renjie Liao
×2
Jaidev Gill
×2
Qi Zeng
×1
Jiaming Zhang
×1
Zixin Ding
×1
Boying Gong
×1

Papers

  1. For-Value: Efficient Forward-Only Data Valuation for finetuning LLMs and VLMs
    ACL 2026 ·
    Wenlong Deng
    ,
    Qi Zeng
    ,
    Jiaming Zhang
    ,
    Minghui Chen
    ,
    Zixin Ding
    , Christos Thrampoulidis,
    Boying Gong
    ,
    Xiaoxiao Li
  2. DARE the Extreme: Revisiting Delta-Parameter Pruning For Fine-Tuned Models
    ICLR 2025 ·
    Wenlong Deng
    ,
    Yize Zhao
    ,
    Vala Vakilian
    ,
    Minghui Chen
    ,
    Xiaoxiao Li
    , Christos Thrampoulidis
  3. Implicit Bias of Spectal Descent and Muon on Multiclass Separable Data
    NeurIPS 2025 ·
    Chen Fan
    ,
    Mark Schmidt
    , Christos Thrampoulidis
  4. Leveraging Online Olympiad-Level Math Problems for LLMs Training and Contamination-Resistant Evaluation
    ICML 2025 ·
    Sadegh Mahdavi
    ,
    Muchen Li
    ,
    Kaiwen Liu
    , Christos Thrampoulidis,
    Leonid Sigal
    ,
    Renjie Liao
  5. On the Effect of Negative Gradient in Group Relative Deep Reinforcement Optimization
    NeurIPS 2025 ·
    Wenlong Deng
    ,
    Yi Ren
    ,
    Muchen Li
    ,
    Danica J. Sutherland
    ,
    Xiaoxiao Li
    , Christos Thrampoulidis
  6. Sharper Guarantees for Learning Neural Network Classifiers with Gradient Methods
    ICLR 2025 ·
    Hossein Taheri
    , Christos Thrampoulidis,
    Arya Mazumdar
  7. Thumb on the Scale: Optimal Loss Weighting in Last Layer Retraining
    NeurIPS 2025 ·
    Nathan Stromberg
    , Christos Thrampoulidis,
    Lalitha Sankar
  8. Class-Attribute Priors: Adapting Optimization to Heterogeneity and Fairness Objective
    AAAI 2024 ·
    Xuechen Zhang
    ,
    Mingchen Li
    ,
    Jiasi Chen
    , Christos Thrampoulidis,
    Samet Oymak
  9. Engineering the Neural Collapse Geometry of Supervised-Contrastive Loss (Student Abstract)
    AAAI 2024 ·
    Jaidev Gill
    ,
    Vala Vakilian
    , Christos Thrampoulidis
  10. Implicit Optimization Bias of Next-token Prediction in Linear Models
    NeurIPS 2024 · Christos Thrampoulidis
  11. Memorization Capacity of Multi-Head Attention in Transformers
    ICLR 2024 ·
    Sadegh Mahdavi
    ,
    Renjie Liao
    , Christos Thrampoulidis
  12. Symmetric Neural-Collapse Representations with Supervised Contrastive Loss: The Impact of ReLU and Batching
    ICLR 2024 ·
    Ganesh Ramachandra Kini
    ,
    Vala Vakilian
    ,
    Tina Behnia
    ,
    Jaidev Gill
    , Christos Thrampoulidis
  13. Unlocking the Potential of Prompt-Tuning in Bridging Generalized and Personalized Federated Learning
    CVPR 2024 ·
    Wenlong Deng
    , Christos Thrampoulidis,
    Xiaoxiao Li