AS

Ph.D. Student — Computer Science

Aditya Shankar

I study diffusion models for generating structured data (tables or time series) subject to quality or privacy constraints.

Dept.Computer Science
Inst.Delft University of Technology
AdvisorsProfs. Lydia Chen, Rihan Hai, Arie van Deursen
LabData Intensive Systems
StatusFinal Year PhD Student
LocationDelft, The Netherlands

§1About

I'm a PhD student in the Data Intensive Systems Group at TU Delft, advised by Profs. Lydia Chen, Rihan Hai, and Arie van Deursen. My research explores how generative models, especially diffusion models, can be utilised for generating structured data under constraints.

Before starting my PhD, I completed my MSc in Computer Science at TU Delft, where my thesis (at ASML) was on developing a secure distributed forecasting system for the semiconductor industry.

You can reach me via the contact tab.

§2Publications & Patents

A full list is also on Google Scholar.

  1. 2026 · ICLR 2026

    Harpoon: Generalised Manifold Guidance for Conditional Tabular Diffusion

    Aditya Shankar, Yuandou Wang, Rihan Hai, Lydia Chen

  2. 2026 · ACM SIGMOD

    WaveStitch: Flexible and Fast Conditional Time Series Generation with Diffusion Models

    Aditya Shankar, Lydia Chen, Arie van Deursen, Rihan Hai

  3. 2025 · ARES

    Share Secrets for Privacy: Confidential Forecasting with Vertical Federated Learning

    Aditya Shankar, Jérémie Decouchant, Dimitra Gkorou, Rihan Hai, Lydia Chen

  4. 2025 · NeurIPS (SPOTLIGHT)

    TimeWak: Temporal Chained-Hashing Watermark for Time Series Data

    Zhi Wen Soi, Chaoyi Zhu, Fouad Abiad, Aditya Shankar, Jeroen M Galjaard, Huijuan Wang, Lydia Chen

  5. 2025 · ECML PKDD

    Federated Time Series Generation on Feature and Temporally Misaligned Data

    Zhi Wen Soi, Chenrui Fan, Aditya Shankar, Abel Malan, Lydia Chen

  6. 2024 · IEEE ICDE

    SiloFuse: Cross-silo Synthetic Data Generation with Latent Tabular Diffusion Models

    Aditya Shankar, Hans Brouwer, Rihan Hai, Lydia Chen

  7. 2023 · ECML PKDD (WAFL Workshop)

    Parameterizing Federated Continual Learning for Reproducible Research

    Bart Cox, Jeroen Galjaard, Aditya Shankar, Jérémie Decouchant, Lydia Chen

  8. 2026 · ArXiv

    Detecting Diffusion-Generated Time Series Under Generator Shift

    Zhi Wen Soi, Aditya Shankar, Gert Lek, Abele Mălan, Daniel Neider, Jian-Jia Chen, Lydia Chen

  9. 2026 · ArXiv

    TMPDiff: Temporal Mixed-Precision for Diffusion Models

    Basile Lewandowski, Simon Kurz, Aditya Shankar, Robert Birke, Jian-Jia Chen, Lydia Chen

Patent

2025 · International/European Patent

Vertically Federated Training of a Machine Learning Model Used by Different Participants for Configuring a Semiconductor Manufacturing Process

Aditya Shankar, Dimitra Gkorou, Satej Khedekar, Lydia Chen, Jérémie Decouchant

A patent for a secure forecasting framework that allows multiple parties to collaboratively make forecasts without leaking privacy using multi-party-computation. Based on my master thesis.

§3Teaching, Supervision & Academic Service

Teaching assistantships

TermCourseRole
Spring 2024Seminar on Distributed Machine Learning SystemsVisiting TA @ Université de Neuchâtel
Spring 2023Seminar on Distributed Machine Learning SystemsTA @ TU Delft

Supervision & Mentoring

YearStudentRoleProject
2026 Abdelrahman Faqieh & Saul Sanchez Gonzalez (@ University of Bern) Research Supervisor Tabular-to-Image Generation with Diffusion Models
2026 Lorenzo Sibi (@ CERN) Master Thesis Supervisor Diffusion Models for Source Localisation
2025 Zhi Wen Soi & Chenrui Fan (@ University of Bern) Research Supervisor Federated Synthetic Data Generation for Feature and Temporally Misaligned Time Series
2025 Arnob Chowdhury (@ ASML) Master Thesis Supervisor Multi-task, Multi-Frequency Time Series Forecasting
2024 Julio Vega Sanchez (@ ASML) Master Thesis Supervisor Federated Multi-task Time Series Forecasting
2024 Shivaani Hari (@ IIT Delhi) Project Supervisor Tabular Vertical Federated Learning

Academic Roles & Service

Year(s)RoleOrganisation / Event
2026 Reviewer NeurIPS
2026 Journal Reviewer TKDD
2026 Volunteer ECIR
2025, 2026 Program Committee Member RecSys
2025 Publicity Chair, DBML Workshop IEEE ICDE
2024 Volunteer IEEE ICDE
2024 Reviewer IEEE TPDS

§4Contact

Best reached by email.