collaborators

9 papers

cs.AI2026

Decodable But Not Detachable: Training Data Granularity Determines Parametric Modularity in Large Language Models

Marcus Armstrong, Navid Ayoobi, Arjun Mukherjee

Do large language models contain domain-specific parametric shells: concentrated, causally necessary neuron populations whose removal selectively degrades a target domain while spa…

cs.CL2026

Data Synthesis and Parameter-Efficient Fine-Tuning for Low-Resource NMT: A Case Study on Q'eqchi' Mayan

Alexander Chulzhanov, Soeren Eberhardt, Arjun Mukherjee

Neural machine translation for digitally low-resource Indigenous languages is often hindered by extreme data scarcity, prompting reliance on extractive web-scraping. To ensure data…

cs.LG2026

Dead Weights, Live Signals: Feedforward Graphs of Frozen Language Models

Marcus Armstrong, Navid Ayoobi, Arjun Mukherjee

We present a feedforward graph architecture in which heterogeneous frozen large language models serve as computational nodes, communicating through a shared continuous latent space…

cs.IT2026

Investigating the Fundamental Limit: A Feasibility Study of Hybrid-Neural Archival

Marcus Armstrong, ZiWei Qiu, Huy Q. Vo +1

Large Language Models (LLMs) possess a theoretical capability to model information density far beyond the limits of classical statistical methods (e.g., Lempel-Ziv). However, utili…

cs.LG2026

Thinking in Different Spaces: Domain-Specific Latent Geometry Survives Cross-Architecture Translation

Marcus Armstrong, Navid Ayoobi, Arjun Mukherjee

We investigate whether independently trained language models converge to geometrically compatible latent representations, and whether this compatibility can be exploited to correct…

cs.CL2026

Say Anything but This: When Tokenizer Betrays Reasoning in LLMs

Navid Ayoobi, Marcus I Armstrong, Arjun Mukherjee

Large language models (LLMs) reason over discrete token ID sequences, yet modern subword tokenizers routinely produce non-unique encodings: multiple token ID sequences can detokeni…