Vito Claudio Ostuni

Researcher, engineering, NetFlix

Joined

July 2019

Names

Vito Claudio Ostuni

,

Vito Ostuni

Emails

****@netflix.com (Confirmed)

,

****@gmail.com

Personal Links

Career & Education History

Researcher

engineering, NetFlix (netflix.com)

2019 – Present

PhD student

DEI, Polytechnic Institute of Bari (poliba.it)

2012 – 2015

Advisors, Relations & Conflicts

PhD Advisor

Tommaso Di Noia

2012 – 2015

Expertise

recommender systems

2011 – 2025

information retrieval

2011 – 2025

machine learning

2009 – 2025

Publications

Beyond Continuity: Challenges of Context Switching in Multi-Turn Dialogue with LLMs
Aditya Sinha, Harald Steck, Vito Claudio Ostuni, Matteo Rinaldi
- ICLR 2026 Workshop ICBINB
- Readers: Everyone
Counterfactual Learning to Rank using Heterogeneous Treatment Effect Estimation
Mucun Tian, Chun Guo, Vito Claudio Ostuni, Zhen Zhu
- SIGIR eCom’20
- Readers: Everyone
Rank-GRPO: Training LLM-based Conversational Recommender Systems with Reinforcement Learning
Yaochen Zhu, Harald Steck, Dawen Liang, Yinhan He, Vito Claudio Ostuni, Jundong Li, Nathan Kallus
- ICLR 2026 Poster
- Readers: Everyone
A Semantic Hybrid Approach for Sound Recommendation
Vito Claudio Ostuni, Tommaso Di Noia, Eugenio Di Sciascio, Sergio Oramas, Xavier Serra
- 2015 (modified: 12 Nov 2022)
- WWW (Companion Volume) 2015
- Readers: Everyone

Co-Authors