Publication Type
Conference Proceeding Article
Version
publishedVersion
Publication Date
5-2026
Abstract
Automatically annotating job data with standardized occupations from taxonomies, known as occupation classification, is crucial for labor market analysis. However, this task is often hindered by data scarcity and the challenges of manual annotations. While large language models (LLMs) hold promise due to their extensive world knowledge and in-context learning capabilities, their effectiveness depends on their knowledge of occupational taxonomies, which remains unclear. In this study, we assess the ability of LLMs to generate precise taxonomic entities from taxonomy, highlighting their limitations, especially for smaller models. To address these challenges, we propose a multi-stage framework consisting of inference, retrieval, and reranking stages, which integrates taxonomy-guided reasoning examples to enhance performance by aligning outputs with taxonomic knowledge. Evaluations on a large-scale dataset show that our framework not only enhances occupation and skill classification tasks, but also provides a cost-effective alternative to frontier models like GPT-4o, significantly reducing computational costs while maintaining strong performance. This makes it a practical and scalable solution for occupation classification and related tasks across LLMs.
Discipline
Artificial Intelligence and Robotics | Databases and Information Systems
Research Areas
Data Science and Engineering
Publication
Proceedings of the Twentieth International AAAI Conference on Web and Social Media (ICWSM 2026), Los Angeles, California, May 27-29
First Page
2
Last Page
30
Identifier
10.1609/icwsm.v20i1.42622
Publisher
AAAI
City or Country
USA
Citation
ACHANANUPARP, Palakorn and LIM, Ee-peng.
A multi-stage framework with taxonomy-guided reasoning for occupation classification using large language models. (2026). Proceedings of the Twentieth International AAAI Conference on Web and Social Media (ICWSM 2026), Los Angeles, California, May 27-29. 2-30.
Available at: https://ink.library.smu.edu.sg/sis_research/11377
Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial-No Derivative Works 4.0 International License.
Additional URL
https://doi.org/10.1609/icwsm.v20i1.42622