Research themes

My research themes lie in the broad area of heterogeneous data integration and exploitation, including heterogeneous and multi-modal data as well as warehouse, data lake and lakehouse architectures.

The general scientific questions that are driving me every day include: My research applies to various domains including sustainable cities, media, and healthcare, with a strong interest in sustainable cities.

Projects and tools

Current projects

EXPERT-MED-IA (Oct 2026 - Oct 2029)
birds
Le confrère virtuel d'aide à la décision pour le soignant
LLM healthcare data
member   AURA region (2026-2028)
Scientific achievements
Practical outcomes
Associated publications

TODO

Artifacts
MOBI4ALL (Oct 2026 - Oct 2030)
birds
Towards intelligent systems for inclusive and privacy-respecting mobility for individuals with Autism Spectrum Disorder (ASD)
multimodal data
member (WP4)   ANR PRC (2026-2030)
Scientific achievements
Practical outcomes
Associated publications

TODO

Artifacts

Previous projects

BETTER (Apr 2024 - Jul 2025)
BETTER project logo
Real-world health-data distributed analytics research platform
heterogeneous data E-R model FAIR principles clinical data
contributor (tasks 4.1, 4.2)   Horizon Europe (2022 - 2027)    7 European hospitals    project page
Scientific achievements
  1. Two conceptual models for data and metadata respectively, both general, able to represent various multi-modal healthcare data, allowing the usage of ontologies, and extensible to various healthcare scenarios
  2. An ETL algorithm to fully automatically convert existing data and metadata to instances of our models, resulting in an interoperable database
  3. A metadata and data catalogue for exploration and ease federated learning algorithm design.
Practical outcomes
  1. Each hospital has an interoperable database, part of the global BETTER network
  2. Federated learning algorithms are co-created and implemented by researchers and practitioners
  3. The catalogue implementation for the 3 use-cases (genetic rare diseases)
Associated publications

TODO

Artifacts
  • I-ETL (Python application, 6k LOC, 1.3 year)
CONNECTIONSTUDIO (Mar 2023 - Mar 2024)
ConnectionStudio project logo
User data exploration of heterogeneous data
data integration data exploration user interface
contributor   ANR SourcesSay project (2020 - 2024)    project page
Scientific achievements
  1. A user-oriented methodology for querying a relational data lake by selecting data pieces of interest instead of formulating SQL queries
Practical outcomes
  1. A software suite for the data exploration of the underlying data lake
Associated publications

TODO

Artifacts
  • ConnectionStudio (Java and Javascript application, 25k LOC, 1 year)
PATHWAYS (May 2022 - Mar 2024)
Pathways project logo
Find interesting entity-to-entity paths in heterogeneous data
interesting connections entity extraction data journalism
contributor   DIM RFSI PHD 2020-01    project page
Scientific achievements
  1. Efficiently enumerate all paths connecting named entities appearing in multi-modal and heterogeneous data by relying on an intermediate summary graph and a view-based algorithm
  2. The ranking of paths based on their interestingness, a quantitative measure based on entity confidence and information dilution
Practical outcomes
  1. A novel ChatGPT-based module for entity extraction
  2. The efficient evaluation of paths by using a dedicated multi-query optimization algorithm
Associated publications

TODO

Artifacts
  • PathWays (Java application, 4k LOC, 1.9 year)
ABSTRA (Jan 2021 - Mar 2024)
Abstra project logo
Entity-Relationship summaries from semi-structured data
semi-structured data data summarization E-R model
main contributor   DIM RFSI PHD 2020-01    WeDoData start-up    project page
Scientific achievements
  1. A novel model-agnostic data summarization method relying on data kinds instead of specific model features
  2. The selection of most representative entities, their attributes and relationships from the data summary by relying on a graph representation and PageRank node scores
Practical outcomes
  1. A end-to-end pipeline to summarize any (set of) heterogeneous datasets
  2. An interface to visualize summaries as Entity-Relationship diagrams
Associated publications

TODO

Artifacts
  • Abstra (Java application, 10k LOC, 3.2 years)
PREDIHOOD (Feb 2020 - Jul 2020)
Predihood project logo
Supervised prediction of the environment of neighborhoods
variable selection prediction algorithms experimental evaluation
main contributor   LabEx IMU (Intelligences des Mondes Urbains)    HomeInLove start-up
Scientific achievements
  1. An algorithm to automatically select the most useful subset of indicators among the hundreds collected ones
  2. An algorithm to automatically predict in a supervised manner the environment of any French neighborhood based on several subsets of indicators
Practical outcomes
  1. Collect and process cartographic and urban data from public data such as INSEE
  2. An interface for predicting the environment of any French neighborhood
  3. A general interface for testing, evaluating and comparing AI algorithms
Associated publications

TODO

Artifacts
  • Predihood (Python and JavaScript application, 3k LOC, < 1 year)
GEOALIGN (Mar 2019 - Jul 2019)
GeoAlign project logo
Matching and merging geographic entities
entity matching entity merging similarity measures
main contributor   Master 1 project
Scientific achievements
  1. A customizable similarity formula for estimating the matching similarity between geographic entities
  2. The computation of the estimated quality of the matching without ground truth
Practical outcomes
  1. A map interface for find, matching and merging similar geographic entities
Associated publications

TODO

Artifacts
  • GeoAlign (PHP and JavaScript application, 4k LOC, < 1 year)
VIZLIRIS (May 2019 - Jun 2019)
Vizliris project logo
Recommending and clustering French neighborhoods
recommendation algorithms user interface similarity measures
main contributor   LabEx IMU (Intelligences des Mondes Urbains)    HomeInLove start-up    project page
Scientific achievements
Practical outcomes
Associated publications

TODO

Artifacts
  • VizLIRIS (Python and JavaScript application, 1k LOC, < 1 year)