Author

Iris Xu

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Book Open access Aug 2026

An Analysis of LLM Performance on Introductory C++ Programming Assignments

Background and Context. Large Language Models (LLMs) have become widely accessible to students in introductory programming courses [1], yet limited research evaluates their performance on authentic assignments with pedagogical constraints such as restricted language features and course-specific conventions. Existing be...

Iris Xu, Michał Nowak, E. Shaffer · Proceedings of the 2026 ACM... · 0 citations

#machine learning Jul 2026

Learning More from Less: Reinforcement Learning from Hindsight

Learning from Hindsight is presented, which brings hindsight relabeling to RL post-training of VLAs by scoring failed rollouts against the tasks they actually achieved, and achieves 5 times improvement in sample efficiency, and outperforms a dense progress-reward baseline on out-of-distribution LIBERO-PRO tasks.

Iris Xu, Sunshine Jiang, John Marangola et al. · arXiv.org · 0 citations