Replies posted by luiswilbert
AmDear Thank you for your answer. When I move from the nominal model to the robust model, I have the following model with ellipsoid (in this case is a minimization problem). In my case, the model is a maximization. Then the second part of the last equation will be -p||Px||2. When I’m building this equation, I’m trying to replicate this function IS it corret? Sorry for this basic question
Dear Thank you for your message. I included all details about my question on microsoft word. I also send the aimms file with the model. I’m creating an assortment model and I would like to use the ellipsoid uncertianty.I k ow that I can use the function Ellispoid from aimms. However, I would like to use the uncertainty region, and the uncertianty constraint to build the ellipsoid. I think that I was able to create the model with ellipsoid. I described the process that I used to build the model and I would like to check if there is something missing. Thank you
Thank you Chris !!! In a multichannel environment, the customer accesses the information and always buy in the same channel. In Omnichannel, the customer can buy the product online and pick-up at the physical store. These models can be called (click and collect) or (ship from store). However, such a purchase must be considered as an online sale or a physical sale. If the store can also sell for ecommerce, the whole strategy of Network Design must change. This crossfilling changes the dynamics of the operation and should be considered when you a building a long term strategy. If the store is able to fulfill orders, we can have more safety stock and fixed cost. There are many trade-offs that we need to understand due to the new fulfillment process. How to address these challenges with Network Design and Multiechelon Inventory ?
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