Hello, I'm Nunu,

AI Research Scientist & Engineer specializing in the reliability and safety of Large Language Models (LLMs). Currently investigating the root causes of hallucinations across the model training lifecycle to develop robust mitigation strategies. I revel in problem solving complex scientific questions and building robust machine learning models, such as an affective task-oriented dialogue systems using Reinforcement Learning (RL) and latent space optimization. My goal is to bridge the gap between cutting-edge NLP research and safe, beneficial, and reliable AI technologies.

News

January 2026

I reached over 1000 citations in Google Scholar!

October 2025

Our paper, "Less is More: Local Intrinsic Dimensions of Contextual Language Models", has been accepted for presentation at NeurIPS 2025!
I am co-holding the Reinforcement Learning course for the Master programme AI and Data Science at HHU.

July 2025

I am giving an invited tech talk + demo on ConvLab3 at SIM4IA Workshop.

April 2025

I am holding the Spoken Dialogue System course for the Master programme AI and Data Science at HHU.

December 2024

Our paper "Learning from Noisy Labels via Self-Taught On-the-Fly Meta Loss Rescaling" is accepted at AAAI 2025!

October 2024

I am co-holding the Reinforcement Learning course for the Master programme AI and Data Science at HHU.

July 2024

Our paper "Affect Recognition in Conversations Using Large Language Models" is accepted at SIGDIAL 2024!
Our paper "Infusing Emotions into Task-oriented Dialogue Systems: Understanding, Management, and Generation" is accepted at SIGDIAL 2024!

July 2023

I gave an invited talk titled "Dialogue Evaluation via Offline Reinforcement Learning and Emotion Prediction" at NLP for Conversational AI 5 co-located at ACL 2023 in Toronto, Canada.
We presented two posters at ACL 2023 in Toronto, Canada.
Our paper "From Chatter to Matter: Addressing Critical Steps of Emotion Recognition Learning in Task-oriented Dialogue" is accepted at SIGDIAL 2023!

June 2023

I gave a keynote titled "Dialogue Evaluation via Offline Reinforcement Learning and Emotion Prediction" at the 32nd TaCoS Conference in Düsseldorf, Germany.

May 2023

Our paper "ChatGPT for Zero-shot Dialogue State Tracking: A Solution or an Opportunity?" is accepted at ACL 2023!

December 2022

ConvLab-3 is now online at arXiv and github!

Online Talks

Nunu_SIGDIAL2022_v2.mp4

SIGDIAL 2022

Dialogue Evaluation with Offline RL

LAVA.mp4

COLING 2020

LAVA: Latent action spaces via variational auto-encoding

Get in touch at lubis [at] hhu [dot] de

Google Scholar

Universitätsstr. 1 Gebäude 25.12.01.34, Düsseldorf, Germany 40225

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