Xianbang Chen
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Latest activity by Xianbang Chen
Xianbang Chen commented,
Since you are already using version 9.x.x, this means that your license is valid for all 9.x.x versions. There is no need to update your license unless it is expired. Thank you very much. I love ...

Xianbang Chen commented,
Thanks for your suggestions! You should also think about the MIPGap you want to achieve. Are you really looking for the perfect solution or would a MIPGap of, e.g., 1% be already enough? Yes, I s...

Xianbang Chen commented,
If you let the tuning tool run for, e.g., 12 days, then it should be enough and it is very likely possible that no further fine tuning is required. If you have only a limited amount of time, t...

Xianbang Chen commented,
BTW, I tried to use a MathJax rather than image to represent the model. But the Latex code for the model is somehow complicated. So I merely replace it with a clearer image. I hope this could impro...

Xianbang Chen commented,
Yes, please have a look at Posting to the Community Forum. Thanks for this. I will adjust my way for posting a good question. Did you try Gurobi's parameter tuning tool? Not yet, but I just rea...

Xianbang Chen commented,
Hi Jaromił, I have attached the mps file on https://www.filemail.com/d/kluiopckxswcvir Could you share any suggestions with me?

Xianbang Chen commented,
Hi, is it possible to upload a LP file? Seems only image is allowed.

Xianbang Chen created a post,
How to solve this MILPbased regression model faster?
AnsweredHello, I am trying to solve a MILPbased regression model as following. Basically, I am training the B that can lead to good w with minimal cost loss (the first term in the objective), through sol...

Xianbang Chen commented,
Hi Jaromił, Thanks for your suggestion. I adjusted my constraints and some coefficients, and then the problem is solved. Best regards, Xianbang

Xianbang Chen created a post,
MIQP is solved faster but unstable! Any suggestions for this?
AnsweredHello, I am solving a MIQP problem on MATLAB with YALMIP. At first, it is solved slowly. Therefore, I take the suggestion from https://support.gurobi.com/hc/enus/community/posts/360075509811Howt...