It depends on the problem to model and data used.

Thanks,

Yamine

Dear Arindam,

A vague graph is a generalized structure of a fuzzy graph that gives more precision, flexibility and compatibility to a system when compared with systems that are designed using fuzzy graphs.

Here are some documents that can enrich your knowledge in the field.

Best regards

There are many other options available: stochastic programming, robust optimization, chance-constrained programming, mean