You can also call me Leo, or 6 (pronounced as liu in Chinese). Based in France.
AI Researcher | Traveler | Paraglider | Scuba Diver | Hiker | Foodie | Wine Lover
As an AI researcher and globe-traveller who has stamped my passport in ~80 countries:
- I trek across landscapes of optimisation, and across glaciers in the Arctic
- I dive deep into bias and fairness in AI, and occasionally into the Pacific with sharks
- I surf the waves of algorithmic complexity, and nice waves in Gold Coast
- I sail through semantic and similarity spaces, and across the Mediterranean chasing sunsets
I design trustworthy, efficient, and impactful AI systems bridging academic rigor and industrial scale.
My research spans:
- Bias & Fairness in AI – Making models equitable and transparent including Computer Vision, Biometric systems, embedding models and LLMs.
- Sustainable & Frugal AI – Optimizing resources for real-world deployments, reducing the carbon footprints and costs.
- Metric Learning & Information Fusion – Exploring the similarity learning for Multi-view learning, human perceptions, etc.
- AI in Industry – Evaluations of LLMs and embeddings, Scalable solutions for travel, operations, and personalization.
Bias & Fairness in AI
- Travel Bias Benchmark for QA (To be OpenSourced soon)
- Writing Style Matters: An Examination of Bias and Fairness in Information Retrieval Systems (WSDM 2025) (Selected by ACM as featured publications)
- Recent advances in text embedding: A Comprehensive Review of Top-Performing Methods on the MTEB Benchmark (arXiv 2024)
- Towards Fair AI: Detecting Socio-Economic Bias in Large Language Models (SophiaSummit 2024)
- Inclusive normalization of face images to passport format (IJCNN 2023)
- Generating training/testing data for face recognition (US Patent App. 18/846,052, 2025)
- System and method for quantifying or generating distortion in images (US Patent App. 18/920,610, 2025)
- Image processing systems and methods (US Patent App. 18/428,165, 2024)
Sustainable & Frugal AI
- Semantic Adapter for Universal Text Embeddings: Diagnosing and Mitigating Negation Blindness to Enhance Universality (ECAI 2025)
- Holistic Analysis on the Sustainability of Federated Learning Lifecycle in Real-World Industrial Settings (ECAI 2025)
- EmbedSelect: AI-Driven Text Embedding Model Selector for Optimal Performance and Efficiency (OpenSource 2025)
- METHOD AND SYSTEM FOR QUERY PROCESSING BASED ON QUERY COMPLEXITY (Patent APP, 2025)
- Real-Time & Sustainable Prompt and Chat History Compression (Patent APP, 2024)
- Explainable and Guided Search for Sustainable and Optimal Travel Solutions (Patent APP, 2024)
- Improve the Performance of Transfer Learning Without Fine-Tuning Using Dissimilarity-Based Multi-View Learning for Breast Cancer Histology Images (ICIAR 2018)
Similarity & Multi-View Learning
- Multi-View User Representation Learning for User Matching Without Personal Information (IJCNN 2023)
- A Novel Random Forest Dissimilarity Measure for Multi-View Learning (ICPR 2020)
- Random Forest for Dissimilarity-Based Multi-View Learning (Handbook of Pattern Recognition and Computer Vision, 2020)
- PhD Thesis: Random Forest for Dissimilarity-Based Multi-View Learning: Application to Radiomics (2019)
- Random Forest Dissimilarity-Based Multi-View Learning for Radiomics Application (Pattern Recognition 2019)
- Dynamic Voting in Multi-View Learning for Radiomics Applications (S+SSPR 2018)
- Dissimilarity-Based Representation for Radiomics Applications (ICPRAI 2018)
AI in Industry
- Diverse and Private Synthetic Datasets Generation for RAG Evaluation: A Multi-Agent Framework (ECAI 2025)
- Multi-Agent LLM Judge: Automatic Personalized LLM Judge Design for Evaluating Natural Language Generation Applications (ECAI 2025)
- How LLMs Are Changing the Way We Build LLMs (Platform Summit 2025)
- Multi-Agent System for Large-Scale Swagger Extension (Patent APP, 2025)
- Modeling Airline Disruptions to Predict Optimization Complexity and Solution Shape (Agifors AirOps 2025)
- Computing Resource Optimization Engine Based on Contextual Linkage in a Knowledge Graph (US Patent App. 18/084,610, 2024)
- DEVICE, SYSTEM AND METHOD FOR ADJUSTING OPERATION OF A PROGRAMMATIC APPLICATION USING AN ENSEMBLE OF DECISION TREES (Patent APP, 2024)
- User Representation for Matching (US Patent App. 18/380,370, 2024)
- Dynamic Selection of Algorithms (US Patent App. 18/528,886, 2024)
- Data Enhancement System and Method (US Patent App. 18/528,912, 2024)
- Destination Similarity Based on Implicit User Interest (arXiv 2021)
Other Contributions
-
Contributed to drafting proposals for public funding from the German government
-
Enhancing Retrieval-Augmented Generation (RAG) Performance through Effective Documentation, 2024
-
Different Kinds of Knowledge Graphs and Their Use Cases, 2020
- Amadeus Top Inventor 2024
- Amadeus Top Inventor 2023
- Finalist of Inclusive AI Awards, Cannes Neurons Awards 2023
- Amadeus Top Inventor 2022
- Amadeus Top Inventor 2021
- Scuba Diving: 50+ dives across 4 continents (sharks in Fiji, wild waves in Cabo Verde).
- Wine Explorer: From Beaujolais to Barolo, Tenerife to Tasmania, always chasing natural winemakers.
- Paragliding & Hiking: Level 2 license on paragliding, hikes on almost every continent.
⭐ Pinned Projects: EmbedSelect, Research Portfolio