See how Kumbi works.
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Here you can play with Kumbi algorithm to get familiar with it
The training model contains data of cuboids. Data consists of height, length, width, weight and price. You can choose a cuboid with the most desirable dimensions, weight and price.
Start with a single criterion, e.g. length.
At the beginning, as Expected Value use only MAX or MIN and as Weights valuees 100% to all criteria. This way it is much easier to understand how Kumbi calculates the similarity.
Introduce further criteria gradually. Change Expected Values and Weights. Check if the results match your expectations.
You can also test how your intuition works. Try to predict the results. Write them down. And next try to choose Weights so that you get the expected result. A great exercise to understand how Kumbi works and ... your intuition.