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Case Study

Industrializing a Machine Learning model within a complex technological stack in the banking sector

From the ideation of the model to its integration within existing tools

Challenge

1 —

A detection model based on A complex business rule engine that is challenging to maintain and adjust

2 —

A sophisticated technical stack capable of handling large volumes of data in real-time

The Key Questions

1 —

Comment faire en sorte que mes équipes métiers puissent travailler main dans la main avec des Data Scientists et Data Engineers ?

2 —

How to integrate advanced AI models into an architecture based on real-time processing?

Approach

1 —

Acculturation of teams on AI topics and on agile functioning integrating different types of profiles (business, data, IT)

2 —

Retrieval of historical data constituting the training base of the model

3 —

Data analysis and co-construction with business teams of the major variables influencing the prediction

4 —

Training and fine-tuning of the model on historical data

5 —

Performance measurement and backtesting of the model on past periods

6 —

Packaging of the model and integration within the client's technical stack

Results

1 —

A 25% improvement in prediction accuracy at an equivalent recall compared to the rule engine

2 —

Construction of an AI model in about 15 weeks

3 —

A user-friendly monitoring tool to manage the detection model and track performance on D+1 (the day after)

At the heart of the subject

We worked hand in hand within the client's agile squads to streamline exchanges, which allowed us to accelerate the deployment. The challenges were very demanding since the use of AI models in replacement of business rule engines within the banking sector is quite complex both from an operational and technological standpoint.