Yiderigun Borjigin

† Published under the name Yiderigun Yiderigun; same author.

1. AnchorBench: A Multi-Pathway Benchmark for the Anchoring Effect in LLMs

   Yiderigun Borjigin, Alexander Hermann, Christian J. Cyron, Roland Aydin

   Conference on Language Modeling (COLM), main conference · 2026

   A benchmark isolating how a numeric anchor's delivery pathway — prompt, conversation history, few-shot demonstrations, RAG documents, tool outputs — and its framing govern LLM judgment. 14 models × 9,000 condition-controlled prompts, with a Bayesian rational-updating ceiling separating justified evidence integration from bias.

   arXiv code dataset
2. From RawTokens to PhysSummary: Probing Text Interfaces for Inverse 1D PDE Parameter Estimation

   Yiderigun Borjigin^†, Arman Shojaei, Christian J. Cyron, Roland Aydin

   ICLR 2026 Workshop on AI and Partial Differential Equations · Poster · 2026

   Shows the text interface between numerical data and an LLM is reliability-critical, with a failure-mode taxonomy — prompt-visible constant copying, fine-tuning collapse on compressed features, non-monotonic shot scaling — invisible to accuracy metrics alone.

   OpenReview
3. Synthetic Persona Pretraining: Alignment from Token Zero

   Julian Minder, Viktor Moskvoretskii, Raghav Singhal, Difan Jiao, Andy Arditi, Shaobo Cui, Yiderigun Borjigin, Kartik Bali, Stefan Krsteski, Harsh Raj, Huu Nguyen, Jannik Brinkmann, Ashton Anderson, Roland Aydin, Robert West

   Preprint, arXiv:2608.13482 [cs.LG] · 2026

   A fifteen-author multi-institution collaboration (EPFL, Toronto, Saarland/Hereon, and others) on pretraining-time alignment interventions.

   arXiv LessWrong