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Xinyan Velocity Yu

5 accepted papers

2026

Cancer-Myth: Evaluating Large Language Models on Patient Questions with False Presuppositions

ICLR 2026poster

Cancer patients are increasingly turning to large language models (LLMs) for medical information, making it critical to assess how well these models handle complex, personalized questions. However, current medical benchmarks focus on medical exams or consumer-searched questions and do not evaluate…

Cited by 0SourcecodeScholar
2025

CodeRAG-Bench: Can Retrieval Augment Code Generation?

NAACL 2025findings

While language models (LMs) excel at generating code, many programs are difficult to generate using only parametric knowledge. Despite the success of retrieval-augmented generation (RAG) in text-centric tasks, its potential for code generation remains under-explored. This work introduces CodeRAG-ben…

2025

The Semantic Hub Hypothesis: Language Models Share Semantic Representations Across Languages and Modalities

ICLR 2025poster

Modern language models can process inputs across diverse languages and modalities. We hypothesize that models acquire this capability through learning a _shared representation space_ across heterogeneous data types (e.g., different languages and modalities), which places semantically similar inputs…

2024

Principled Gradient-Based MCMC for Conditional Sampling of Text

ICML 2024poster

We consider the problem of sampling text from an energy-based model. This arises, for example, when sampling text from a neural language model subject to soft constraints. Although the target distribution is discrete, the internal computations of the energy function (given by the language model) are…

Cited by 1SourcePDFScholar
2023

RealTime QA: What's the Answer Right Now?

NeurIPS 2023poster

We introduce RealTime QA, a dynamic question answering (QA) platform that announces questions and evaluates systems on a regular basis (weekly in this version). RealTime QA inquires about the current world, and QA systems need to answer questions about novel events or information. It therefore chall…