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Exhibitor Workshops

Take advantage of these pre-meeting Exhibitor Workshops on for a hands-on demonstration of the latest industry products and software. All attendees are welcome to join onsite or pre-register. You’ll be able to add pre-meeting workshops to your your registration in August. All Exhibitor Workshops will be held in the Seattle Convention Center Summit Building on Saturday, October 19.

10am-12:30pm
Location: SUMMIT-448

Exhibitor Workshops

Title: TBD

Presented by: Catherine Potts

1-3:30pm
Location: SUMMIT-447

Exhibitor Workshops

GAMSPy and Data APIs for Streamlining Optimization

Presented by: Atharv Bhosekar

 
GAMS (General Algebraic Modeling System) is an algebraic modeling language that provides users a way to write optimization models using intuitive algebraic syntax.  However, as optimization becomes an integrated step within larger decision-making pipelines, modelers face two significant challenges: (1) the inconvenience of switching out of a preferred programming language (such as Python) solely for optimization purposes, and (2) the difficulty of efficiently transferring data between GAMS and other tools and platforms within a diverse software ecosystem. In this presentation, we will tackle these challenges using our latest solutions. First, we will present GAMSPy, our new product that brings algebraic modeling capabilities to Python. GAMSPy allows users to enjoy an intuitive algebraic syntax without compromising on the performance. We will also highlight our suite of data APIs to streamline data exchange with GAMS. In particular, we will focus on GAMS Transfer, a data API that enables users of R, MATLAB, and Python to efficiently read, modify, analyze, and write GAMS data. These tools significantly enhance the interoperability of GAMS within multi-platform decision pipelines, facilitating smoother and more efficient optimization workflows.
 
This content is most relevant to Associate (Early Career), Professional (Mid-Career), and Executive (Senior Level).

1-3:30pm
Location: SUMMIT-448

Exhibitor Workshops

Hexaly, a New Kind of Global Optimization Solver

Presented by: Fred Gardi

Hexaly Optimizer is a new kind of global optimization solver. Its modeling interface is nonlinear and set-oriented. It also supports user-coded functions, thus enabling black-box optimization and, more particularly, simulation optimization. In a sense, Hexaly APIs unify modeling concepts from mixed-linear programming, nonlinear programming, and constraint programming. Under the hood, Hexaly combines various exact and heuristic optimization methods: spatial branch-and-bound, simplex methods, interior-point methods, augmented Lagrangian methods, automatic Dantzig-Wolfe reformulation, column and row generation, propagation methods, local search, direct search, population-based methods, and surrogate modeling techniques for black-box optimization.

Regarding performance benchmarks, Hexaly distinguishes itself against the leading solvers in the market, like Gurobi, IBM Cplex, and Google OR Tools, by delivering fast and scalable solutions to problems in the spaces of Supply Chain and Workforce Management like Routing, Scheduling, Packing, Clustering, and Location. For example, on notoriously hard problems like the Pickup and Delivery Problem with Time Windows or Flexible Job Shop Scheduling with Setup Times, Hexaly delivers solutions with a gap to the best solutions known in the literature smaller than 1% in a few minutes of running times on a basic computer.

In addition to the Optimizer, we provide an innovative development platform called Hexaly Studio to model and solve rich Vehicle Routing and Job Shop Scheduling problems in a no-code fashion. The user can define its problem and data, run the Optimizer, visualize the solutions and key metrics through dashboards, and deploy the resulting app in the cloud – without coding. This web-based platform is particularly interesting for educational purposes; it is free for faculty and students.

The content is most relevant to: Associate (Early Career), Professional (Mid-Career), and Executive (Senior Level).

4-6:30pm
Location: SUMMIT-448

Exhibitor Workshops