FoodTaxo: Generating Food Taxonomies with Large Language Models

We investigate the utility of Large Language Models for automated taxonomy generation and completion specifically applied to taxonomies from the food technology industry. We explore the extent to which taxonomies can be completed from a seed taxonomy or generated without a seed from a set of known concepts, in an iterative fashion using recent prompting techniques. Experiments on five taxonomies using an open-source LLM (Llama-3), while promising, point to the difficulty of correctly placing inner nodes.

No Gold Standard, No Problem: Reference-Free Evaluation of Taxonomies

We introduce two reference-free metrics for quality evaluation of taxonomies. The first metric evaluates robustness by calculating the correlation between semantic and taxonomic similarity, covering a type of error not handled by existing metrics. The second uses Natural Language Inference to assess logical adequacy. Both metrics are tested on five taxonomies and are shown to correlate well with F1 against gold-standard taxonomies.