Geoffrey De Smet | SpeakerHub

Personal Details

Bio

Geoffrey De Smet is the founder and lead of OptaPlanner (www.optaplanner.org), the open source AI constraint solver in Java that is used across the globe to automatically solve employee rostering, vehicle routing, task assignment, maintenance scheduling and other planning problems.

Current position (2)

OptaPlanner lead

Red Hat

Principle Software Engineer

Red Hat

Presentations

Presentations (3)

Save the planet with AI: consume 25% less fuel with optimized vehicle routes

The Vehicle Routing Problem (VRP) is a planning challenge faced by many companies - whether they need to restock stores, send technicians to customers or deliver food orders. In its purest form, VRP assigns each visit to a vehicle and determines the order in which each vehicle travels to those visits. The main goal is to reduce travel time and fuel consumption, while adhering to hard constraints such as driving time limitations and delivery time windows. By applying advanced AI constraint solving algorithms, we managed to significantly reduce fuel consumption of large enterprises.

In this session, we’ll solve VRPs with OptaPlanner, an open source AI constraint solver in Java, explain some of the metaheuristic algorithms (such as Tabu Search, Late Acceptance and Simulated Annealing) and delve into parallelization strategies.

A.I. constraint optimization with OptaPlanner: TSP, Vehicle Routing and Employee Rostering

The world is full of planning problems, such as the Vehicle Routing Problem and Employee Rostering. And humans aren’t very good at planning them efficiently. Constraint solving algorithms do a much better job: they reduce expenses, minimize fuel consumption and improve employee retention.

In this technical session, I’ll explain the use cases, the basic code, the nuances of hard and soft constraints, incremental score calculation, continuous planning and real-time planning.

OptaPlanner is an open source constraint solver in Java that is used across the globe by governments, nonprofits and companies ranging from startups to Fortune 500 companies.

Using and contributing to Open Source

https://ge0ffrey.github.io/ge0ffrey-presentations/usingAndContributingTo...

Past talks (7)

Keynote demo 5

Red Hat Summit 2019 (keynote)

Boston, MA, USA

May 7, 2019

A.I. constraint optimization with OptaPlanner: TSP, Vehicle Routing and Employee Rostering

Voxxed Zurich 2019

Zürich, Switzerland

March 19, 2019

The battle of 2 automated conference talk scheduling algorithms for Devoxx