Author

Dezhi Hong

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#artificial intelligence Preprint Oct 2026

TRACER: Trajectory-Aware Tool Retrieval for LLM Agents

Modern agents select tools from registries, but exposing entire registries incurs high token costs and can impair selection as they grow. We present TRACER, a retrieval front-end that indexes observed tool-call sequences in a trie and ranks continuations using a learned blend of empirical and contextual priors. On a mi...

Tanish Kher, DK Sarvesh, Abedelkadir Asi et al. · 0 citations

#artificial intelligence Apr 2026

English is Not All You Need: Systematically Exploring the Role of Multilinguality in LLM Post-Training

A systematic, controlled study of the interplay between training language coverage, model scale, and task domain, based on 220 supervised fine-tuning runs on parallel translated multilingual data mixtures spanning mathematical reasoning and API calling tasks, finds that English-only post-training is typically suboptima...

Mehak Preet Dhaliwal, S. Chaurasia, Yao Qin et al. · arXiv.org · 0 citations