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Rajmohan Rajaraman

3 accepted papers

2026

Two (narrow) heads are better than (an arbitrarily wide) one

ICLR 2026poster

In this paper, we establish a dimension- and precision-independent impossibility result for a simplified transformer model. Due to their size, a comprehensive understanding of the internal operations of frontier large language models (LLMs) is beyond the reach of current methods, but research into s…

Cited by 0SourceScholar
2025

Optimal Fair Learning Robust to Adversarial Distribution Shift

ICML 2025poster

Previous work in fair machine learning has characterised the Fair Bayes Optimal Classifier (BOC) on a given distribution for both deterministic and randomized classifiers. We study the robustness of the Fair BOC to adversarial noise in the data distribution. Kearns & Li (1988) implies that the accur…

Cited by 0SourcePDFScholar
2025

Sample Complexity of Linear Regression Models for Opinion Formation in Networks

AAAI 2025technical

Consider public health officials aiming to spread awareness about a new vaccine in a community interconnected by a social network. How can they distribute information with minimal resources, so as to avoid polarization and ensure community-wide convergence of opinion? To tackle such challenges, we i…