Chenhui Qu
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Activity overview
Latest activity by Chenhui Qu-
Chenhui Qu created a post,
Query Regarding Different Objective Values with Varying Warm Start Solutions in MIQCP
AnsweredDear All, I am currently working on solving a mixed-integer quadratically constrained programming (MIQCP) problem using Gurobi, and I have encountered an issue that I need your assistance with. Whe...
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Chenhui Qu created a post,
Optimal Solution Discrepancy Between Convex and Non-Convex Models
AnsweredHi, I am working with two models (one convex and one non-convex) that address the same problem but are constructed differently. Both models obtained their respective optimal solutions, with the con...
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Chenhui Qu commented,
Hi Jaromił, Thank you very much for your support!! Best wishes, Chenhui
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Chenhui Qu commented,
Hi Jaromił, Thank you for your reply! This is the constraint which I suppose is a soc constraint: I transformed this constraint into the following form for input into GUROBI: Here is the corresp...
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Chenhui Qu commented,
Dear Jaromił, Thank you very much for your suggestion! I recently modified the model and found that the main issue was that I should use inequalities. Your advice was very helpful! However, I have ...
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Chenhui Qu created a post,
Inquiry Regarding Better Solutions Found Using Warm Start for Linearized MIQCP Model
Awaiting user inputDear All, I am currently working on solving a Mixed-Integer Quadratically Constrained Program (MIQCP) and have opted to linearize the model for solving purposes. However, I have encountered an issu...
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Chenhui Qu created a post,
Gurobi Solver Incorrectly Identifying Non-Convex MIQCP in a SOCP Model
AnsweredHi, I am encountering an issue with Gurobi where it incorrectly identifies my model as a non-convex MIQCP. However, I am certain that my model only contains second-order cone (SOCP) constraints, wh...