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Read more about the article Modern Assembly Line Balancing Problems with Realistic Real World Constraints in CPO

Modern Assembly Line Balancing Problems with Realistic Real World Constraints in CPO

  • Post author:Diego
  • Post published:2021-02-04
  • Post category:Blog

The assembly-line balancing problem (today SALBP) is a bin-packing problem with precedence constraints, that was invented in the 50s to model and optimize the design of assembly lines. Because early…

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Read more about the article Decompositions for Large Shift Scheduling Problem & Model Lifecycle

Decompositions for Large Shift Scheduling Problem & Model Lifecycle

  • Post author:Diego
  • Post published:2021-01-26
  • Post category:Blog

When shift scheduling problems become too large to be solved with a single model, an option often chosen by practitioners is to decompose them. Shift-scheduling MIP models contain a very…

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Read more about the article Multi-objective Employee Shift Scheduling Problem in OPL/CPLEX

Multi-objective Employee Shift Scheduling Problem in OPL/CPLEX

  • Post author:Diego
  • Post published:2021-01-11
  • Post category:Blog

Shift-scheduling models are very common in workforce optimization. Employees are scheduled over one or multiple weeks, in order to cover the demand. Each employee has a contract that specifies the…

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Read more about the article Modelling and Solving Workforce Scheduling Optimization Problems

Modelling and Solving Workforce Scheduling Optimization Problems

  • Post author:Diego
  • Post published:2021-01-06
  • Post category:Blog

Workforce scheduling is an essential optimization problem for any business that needs to cope with variable demand, be it during working hours, days of the week or annual seasons. Manufacturing…

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Read more about the article Mathematical Optimization Explained to Scientists: Scheduling of a Subway Line

Mathematical Optimization Explained to Scientists: Scheduling of a Subway Line

  • Post author:Diego
  • Post published:2020-12-10
  • Post category:Blog

We were invited to give a talk about mathematical modeling of optimization problems to 4th year physics students. This material is based on that talk, and therefore intended to beginners…

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Read more about the article Quay Cranes Scheduling Problem (QCSP) with CP Optimizer

Quay Cranes Scheduling Problem (QCSP) with CP Optimizer

  • Post author:Diego
  • Post published:2020-11-23
  • Post category:Blog

The quay crane scheduling problem (QCSP) consists in scheduling quay cranes to load and unload containers from ships. Photo by Jacob Meissner on Unsplash Quay crane undoubtedly is the most…

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Read more about the article Berth Allocation Problem with Rectangle Packing

Berth Allocation Problem with Rectangle Packing

  • Post author:Diego
  • Post published:2020-11-12
  • Post category:Blog

Berth Allocation Problem (BAP) The berth allocation problem assigns arriving ships to a section of the berth (where, when & how long) during enough time for the loading and unloading…

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Read more about the article Introduction to Port Logistics and Scheduling Problems

Introduction to Port Logistics and Scheduling Problems

  • Post author:Diego
  • Post published:2020-11-08
  • Post category:Blog

As ship sizes continue raise, ports struggle maintaining and hopefully increasing port operations productivity. The large number of berths, cranes, warehouses and labors they need to handle make the operations…

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Read more about the article The Unit Commitment Problem (UCP) for Electricity Generation

The Unit Commitment Problem (UCP) for Electricity Generation

  • Post author:Diego
  • Post published:2020-11-02
  • Post category:Blog

The Unit Commitment Problem (UCP) The Unit Commitment problem (UCP) consists in deciding which power generators to run, in which periods and at what level in order to satisfy the…

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Read more about the article Facility location in Supply Chain Network Design

Facility location in Supply Chain Network Design

  • Post author:Diego
  • Post published:2020-10-26
  • Post category:Blog

Facility location problem may be the most critical and most difficult in Supply Chain Network Design because the facilities are often fixed and difficult to relocate in the short term.…

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