Visual Exploration System for Analyzing Trends in Annual Recruitment Using Time-varying Graphs

TL;DR

This paper introduces Panacea, a visualization system that uses time-varying graphs to help HR specialists analyze and explore trends in annual recruitment data of new graduates, revealing hidden patterns across multiple years.

Contribution

The paper presents a novel interactive visualization system combining time-varying graphs and dynamic visualization for analyzing multi-year recruitment data.

Findings

Enables interactive exploration of applicant relationships over years

Helps identify hidden recruitment trends in real-world data

Receives positive feedback from HR specialists

Abstract

Annual recruitment data of new graduates are manually analyzed by human resources specialists (HR) in industries, which signifies the need to evaluate the recruitment strategy of HR specialists. Every year, different applicants send in job applications to companies. The relationships between applicants' attributes (e.g., English skill or academic credential) can be used to analyze the changes in recruitment trends across multiple years' data. However, most attributes are unnormalized and thus require thorough preprocessing. Such unnormalized data hinder the effective comparison of the relationship between applicants in the early stage of data analysis. Thus, a visual exploration system is highly needed to gain insight from the overview of the relationship between applicants across multiple years. In this study, we propose the Polarizing Attributes for Network Analysis of Correlation on Entities Association (Panacea) visualization system. The proposed system integrates a time-varying graph model and dynamic graph visualization for heterogeneous tabular data. Using this system, human resource specialists can interactively inspect the relationships between two attributes of prospective employees across multiple years. Further, we demonstrate the usability of Panacea with representative examples for finding hidden trends in real-world datasets and then describe HR specialists' feedback obtained throughout Panacea's development. The proposed Panacea system enables HR specialists to visually explore the annual recruitment of new graduates.