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Author

K. Hamidieh

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Jul 2026

Bridging Compute- and Data-Optimal Pretraining

Compute-Data (CD) scaling laws are proposed, a unified framework that bridges compute-optimal scaling, where data scales freely with compute, and data-optimal scaling, where the corpus is fixed while compute can grow without bound.

Tian Qin, K. Hamidieh, David Alvarez-Melis · 0 citations
Review Aug 2026

MatrAIx: Simulating the World with 8.3 Billion Persona Agents

MatrAIx is introduced, a population-scale simulated-user evaluation infrastructure for testing AI systems and digital products with heterogeneous users and provides an end-to-end infrastructure for evaluating AI systems and digital products with diverse simulated human users.

Xiaomin Li, Yuexing Hao, Jian Hou et al. · 1 citation
Jul 2026

Domain-Aware Scaling Laws Uncover Data Synergy

This work formalize and quantify data synergy in language model pretraining by leveraging observational variation across open-weight LLMs with diverse pretraining mixtures and estimating both direct domain-to-benchmark synergy and second-order domain-domain synergy (capabilities that require co-occurrence of multiple domains).

K. Hamidieh, Lester Mackey, David Alvarez-Melis · 4 citations

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