天 景

Gurobi-versary
First Comment
First Question
  • Total activity 8
  • Last activity
  • Member since
  • Following 0 users
  • Followed by 0 users
  • Votes 1
  • Subscriptions 2

Activity overview

Latest activity by 天 景

  • 天 景 commented,

    1. Community
    2. Algorithms
    3. Generate non intersecting line segments within a polygon

    Hi Mario,        I expect to construct a continuous 2D shape as the boundary.The original problem can be abstracted as specifying the starting point coordinates and the number of inflection points ...

  • 天 景 created a post,

    Generate non intersecting line segments within a polygon

    Awaiting user input
    1. Community
    2. Algorithms

    Hi,Expect to generate a line segment within the polygon that does not intersect with its boundaries (the polygon may be non convex). I tried to build a constraint model using geometric methods, giv...

    • 天 景
    • 2 followers
    • 3 comments
    • 0 votes

  • 天 景 commented,

    1. Community
    2. Algorithms
    3. VRPTW BIGM problem

    Thank you Mario Ruthmair

  • 天 景 commented,

    1. Community
    2. Algorithms
    3. VRPTW BIGM problem

    Hi Mario, Thank you for your reply. Regarding the actual scenario, I have another question. According to common sense, if I provide enough vehicles, then 100% of the customer's time can be met (at ...

    • View comment
    • 天 景
    • Edited
    • 0 votes

  • 天 景 created a post,

    VRPTW BIGM problem

    Answered
    1. Community
    2. Algorithms

    Hi,When I referred to Ruthmain's code to learn the VRPTW problem, I used the BIGM scheme. Even if maxNumVehicles is set to a large value after numCustomers>141, the model still has no solution. IIS...

    • 天 景
    • 2 followers
    • 4 comments
    • 0 votes