Taxonomy-Guided Contrastive Learning with Competency-Calibrated Graphs for Job Recommendation

Wonseok Son, Haeyoon Koo, Jeonghyeon Park, Byungkook Oh, Sejin Chun (2026). ACM International Conference on Information and Knowledge Management (CIKM)

Keywords Job Matching, Graph Contrastive Learning, Hierarchical Taxonomy
International Conference

Abstract

The goal of job-skill matching is to predict appropriate job opportunities for job seekers based on their skill-sets. Prior studies encode unstructured skill data into latent representations using simple mappings within job classification systems. However, such approaches often fall short in capturing the multi-level and asymmetric associations between jobs and job-relevant competencies. To address these limitations, we propose a taxonomy-guided contrastive learning framework with competency-calibrated graph propagation for skill-based job recommendation. The proposed framework combines skill-taxonomy augmentation with degree-normalized bipartite graph propagation, where degree normalization serves as a competency calibration mechanism to mitigate generic skill bias and preserve job-specific competency signals. The model learns both skill and job representations using path/depth cues from the taxonomy and competency-aware interaction patterns in the job-skill graph. Experimental results on real-world datasets show that our method improves accuracy by +13.6%, NDCG@3 by +10.6%, and MRR@3 by +11.7%, outperforming state-of-the-art baselines.

Highlights

The proposed framework