1st Workshop on
Trustworthy Educational Data Sharing and Secondary Use:
The ReLEAF Data Challenge
@ICCE 2026

As learning analytics becomes deeply embedded in digital education infrastructures, establishing trustworthy data sharing practices is vital. This workshop at ICCE 2026 invites researchers and practitioners to explore the technical and socio-technical dimensions of sharing and reusing educational data. Furthermore, this workshop hosts the ReLEAF Data Challenge. We offer the hands-on tutorial ReLEAF system, a data sharing platform for the research community.

Date: Monday 30th, November

Room: Savoy West

Programme

• 15:10-15:20 Opening

• 15:20-16:20 Presentations (FULL: 15 min + 5 min QA)

  • What Fidelity Metrics Miss: A Structural Check on Synthetic Educational Data
    Hitoshi Inoue and Koichi Yasutake

  • Does an Ability-Conditioned LLM Student Simulator Hold Up as a Construct?
    Hung-Chun Chang, Chia-Yu Hsu, Hiroaki Ogata and Hsiu-Ping Yueh

  • Authentic Educational Data Analysis Education Using a Privacy-Preserving Educational Data Sharing Platform
    Kensuke Takii, Hibiki Ito, Tetsuya Bando and Hiroaki Ogata

• 16:20-16:50 Presentations (SHORT: 10 min + 5 min QA)

  • Consent and De-identification for Operational Data When the Researcher Operates the Platform
    Joseph Benjamin Ilagan, Jose Ramon Ilagan and Gabrielle Anne Uy

  • Dealing with Real World Data in the Real World: A Stakeholder-Centric Framework for Privacy and Sharing in Education
    Taisei Yamauchi, Brendan Flanagan and Hiroaki Ogata

• 16:50-17:00 Break

• 17:00-17:10 Introduction to LEAF infrastructure by Prof. Hiroaki Ogata

• 17:10-18:10 ReLEAF hands-on tutorial + discussions

• 18:10-18:20 Closing