[ Tech stack ]

LightGBM

Microsoft's gradient-boosting framework, built for training speed on very large datasets.

LightGBM trains gradient-boosted decision trees using a histogram-based approach: continuous values are bucketed into bins, which sharply cuts memory use and compute time. Leaf-wise tree growth, GOSS and EFB techniques for sampling gradients and bundling sparse features, and distributed learning make it a very fast, memory-efficient booster. It's our choice as soon as the data exceeds a million rows or hundreds of features and iterations need to stay short.

[ Why LightGBM at Dexon ]

What this technology does well, and why we use it.

Typical usage: Large-scale scoring, ranking and recommendation, forecasting, anomaly detection.

  • 01

    Histogram-based approach: features bucketed into bins, lower memory and compute.

  • 02

    Leaf-wise tree growth: fewer iterations to reach the same loss.

  • 03

    Native categorical feature support, no one-hot encoding required.

  • 04

    Distributed and GPU training, Python, R and C++ APIs, scikit-learn compatible.

[ Complementary technologies ]

The building blocks we often mobilise alongside.

A stack rarely exists alone. Here are the technologies Dexon most often pairs with this one, through pipeline habits, usage similarity or internal mastery. Click on a building block to see its scope.

[ Reassurance ]

0+
custom projects delivered
30
engineers, designers, project managers
80 %
from top French schools
24 h
average reply time

[ They trust us ]

More than 100 French and European companies trust us

[ Press ]

They talk about us.

Nationwide coverage by BFM Business, Le Figaro, Challenges, La Tribune and CNews. An outside reading of our work and our innovations.

Start a project

A project with LightGBM?

Describe your LightGBM project. Our team comes back within 24 h with free technical scoping. No commitment.

  • Reply within 24 h by a specialized consultant.
  • Free technical scoping, with no fees.
  • No commitment, your data stays confidential.

Present inParisLyonMarseilleNiceGeneva

As seen inLe FigaroBFM BusinessChallengesLa TribuneCNews