Arnaud C.

Affiliated researcher at City University of London, PhD HEC, ex research analyst at McKinsey, I offer advanced services in data science, NLP, LLMs, and econometrics.

Specialization: complex data analysis, causal inference, machine learning, and natural language processing.

Key expertise:

• Data analysis, econometrics (panel data, diff-in-diff, Instrumental Variables)

• Machine learning (scikit-learn, PyTorch, TensorFlow, HuggingFace)

• NLP & LLMs: Static (Word2Vec, FastText) and contextualized (BERT, CamemBERT) word embeddings

• Text mining: sentiment analysis, classification, topic modeling, semantic similarity

• Data pipelines, large datasets, APIs

Use cases:

review analysis, customer feedback, internal documents, semantic scoring, bias detection, strategic monitoring.

Approach: scientific, rigorous, reproducible. I combine advanced NLP and econometrics to produce robust, interpretable, and actionable results.

Available for assignments in data science, NLP, causal econometric analysis

Contact me to structure and execute your high-stakes data projects.