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Jasper Dekoninck

10 accepted papers

2026

Adaptive Generation of Bias-Eliciting Questions for LLMs

ICML 2026poster

Large language models (LLMs) are now widely deployed in user-facing applications, reaching hundreds of millions of users worldwide. Despite their widespread adoption, growing reliance on their outputs raises significant concerns, particularly as users may be exposed to model-inherent biases that dis…

Cited by 0SourceScholar
2026

Constrained Decoding of Diffusion LLMs with Context-Free Grammars

ICLR 2026poster

Large language models (LLMs) have shown promising performance across diverse domains. Many practical applications of LLMs, such as code completion and structured data extraction, require adherence to syntactic constraints specified by a formal language. Yet, due to their probabilistic nature, LLM ou…

Cited by 0SourcecodeScholar
2026

The Open Proof Corpus: A Large-Scale Study of LLM-Generated Mathematical Proofs

ICLR 2026poster

In recent months, large language models (LLMs) have made significant progress in mathematical proof generation, but further advancement is hindered by the lack of a large-scale, high-quality dataset of human-evaluated proofs. While expensive to create, such a dataset is essential for driving improve…

Cited by 0SourcecodeScholar
2025

MathArena: Evaluating LLMs on Uncontaminated Math Competitions

NeurIPS 2025poster

The rapid advancement of reasoning capabilities in large language models (LLMs) has led to notable improvements on mathematical benchmarks. However, many of the most commonly used evaluation datasets (e.g., AIME 2024) are widely available online, making it difficult to disentangle genuine reasoning…

Cited by 0SourcecodeScholar
2025

MathConstruct: Challenging LLM Reasoning with Constructive Proofs

ICML 2025poster

While Large Language Models (LLMs) demonstrate impressive performance in mathematics, existing math benchmarks come with significant limitations. Many focus on problems with fixed ground-truth answers, and are often saturated due to problem simplicity or the viability of guessing or memorization. Cr…

Cited by 1SourcePDFScholar
2025

Polyrating: A Cost-Effective and Bias-Aware Rating System for LLM Evaluation

ICLR 2025poster

Rating-based human evaluation has become an essential tool to accurately evaluate the impressive performance of large language models (LLMs). However, current rating systems suffer from several important limitations: first, they fail to account for biases that significantly influence evaluation resu…

Cited by 0SourcePDFScholar
2024

ConStat: Performance-Based Contamination Detection in Large Language Models

NeurIPS 2024poster

Public benchmarks play an essential role in the evaluation of large language models. However, data contamination can lead to inflated performance, rendering them unreliable for model comparison. It is therefore crucial to detect contamination and estimate its impact on measured performance. Unfortu…

Cited by 7SourcePDFScholar
2024

Controlled Text Generation via Language Model Arithmetic

ICLR 2024spotlight

As Large Language Models (LLMs) are deployed more widely, customization with respect to vocabulary, style, and character becomes more important. In this work, we introduce model arithmetic, a novel inference framework for composing and biasing LLMs without the need for model (re)training or highly s…