À propos de Hao
Chinois
Bilingue ou natif
Anglais
Bilingue ou natif
Français
Bilingue ou natif
Expériences
- SODEXOSenior data scientistRESTAURATIONjuin 2020 - novembre 2022 (2 ans et 5 mois)Issy-les-Moulineaux, FranceLead data scientist on retail, pricing projects:- Dynamic pricing for corporate France, US- New food model of digital transformation in China- AI asset initiation and developement
- Participate the whole project life cycle: Project framing, MVM(minimum viable model), MVP(minimum viable product), Industrialization
- In charge of conception and on boarding of data driven solution (BI, AI) to address business needs and pain point
- Coach data scientists resources on retail, pricing projects
Main contributor of NLP asset of Sodexo Data Factory:- Standard pipeline for NLP tasks include sentiment analysis, topics extraction, topics classification (Bert, GPT-3 etc) - IBM FranceData Scientist & Machine Learning EngineerHIGH TECHjuin 2018 - juin 2020 (2 ans)Bois-Colombes, France1. Airbus Skywise project: predictive maintenance and anomaly detection by Machine Learning.- Creation of data pipeline: massive timeseries data treatment and analysis by using Pyspark- Creation of machine learning pipeline: models (deep learning: Autoencoder) development and hyper-parameters tuning (Bayesian Optimization)- Deployment of data pipeline and machine learning pipeline for real time prediction to provide KPI in dashboard for anomaly detectionTechnical environment: Pyspark, Tensorflow, Keras, Amazon AWS, Palantir2. Ipsen & Roche: Prediction of adverse event of medications for Pancreas cancer; Prediction of treatment switch in diabetes type-2 patient journey.- Defining hypothesis and cohort- Feature engineering: cleaning data and creation of data model- Advanced analytics: demographics analysis- Creation of machine learning pipeline: deep learning model (LSTM) to predict time series event (adverse event); Cox analysis model (diabetes)- Creating causal inference model for causality analysis and for eliminating bias in dataTechnical environment: Jupyter notebook, Pycharm, Tensorflow, Keras, IBM explorys, SQL, Docker3. POC for Nissan: Artificial intelligence solution for guided diagnostic of vehicles (Natural Language Processing NLP).- Transformation of unstructured data (customer complains e-ticket) to structured data (NLP text analysis)- Feature engineering: cleaning and standardising data- Machine learning modelling: creating prediction models to precisely classify e-ticket.Technical environment: Jupyter notebook4. Compliance Watson for financial services of Crédit Mutuel: fraud detection and investigation of abnormal transactions against fraud and terrorist activities; customers retention.-Feature engineering: cleaning, generation and exploitation of data for investigation-Advanced analytics: data analysis-Data modelling and AI modelling: creation of data model and machine learning prediction models.Technical environment: Jupyter Notebook, SPSS, SQL, Watson Studio
- Ecole Centrale de LyonResearcherCENTRES DE RECHERCHEjuin 2017 - mai 2018 (11 mois)Écully, FranceConception and development of advanced model to predict high frequency acoustic and vibration effect in automobile and airplane by using historical data.In charge of coordinating two R&D teams between Ecole Centrale de Lyon and Insa Lyon.
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Formations
- DoctoratEcole Normale Supérieur de Cachan2017
- IngénieurEcole Centrale Paris2014
Certifications
- Structuring Machine Learning ProjectsCoursera2019
- Improving Deep Neural Networks: Hyperparameter Tuning, Regularization and OptimizationCoursera2019