Skills2Graph: Processing Million Job Ads to face the Job Skill Mismatch Problem

Abstract

In this paper, we present skills2graph, a tool that, starting from a set of users' professional skills, identifies the most suitable jobs as they emerge from a large corpus of 2.5M+ Online Job Vacancies (OJVs) posted in three different countries (the United Kingdom, France, and Germany). To this aim, we rely both on co-occurrence statistics - computing a count-based measure of skill-relevance named Revealed Comparative Advantage (rca) - and distributional semantics - generating several embeddings on the OJVs corpus and performing an intrinsic evaluation of their quality. Results, evaluated through a user study of 10 labor market experts, show a high P@3 for the recommendations provided by skills2graph, and a high nDCG (0.985 and 0.984 in a [0,1] range), that indicates a strong correlation between the experts' scores and the rankings generated by skills2graph.