Author

Edgar Chávez

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Preprint Aug 2026

misi: a Metric Inverted Sample Index

We present misi, an inverted index for approximate nearest-neighbor search over general metric spaces whose vocabulary is a random sample of the database, of size proportional to $n$. Each object is represented by its $k_b$ nearest sample points, found by a pluggable inner index over the sample; queries are answered by...

Edgar Chávez · 0 citations

Open access 2026

Quantifying Conceptual Brittleness: An Evaluation of Large Language Models on Biographical and Occupational Inference

Large language models (LLMs) have demonstrated remarkable capabilities across diverse tasks, yet their ability to maintain stable inference under linguistically varied inputs remains poorly understood. We introduce the concept of conceptual brittleness, defined as the failure of an LLM to sustain inference performance...

Antonio de Jesús García-Chávez, Everardo Gutiérrez-López, D. Flores et al. · IEEE Access · 0 citations