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[D] – How to determine “value” of items in bartering system?

Hey r/MachineLearning question for you guys

Given a series of bartering transactions, example below:

  • Item 1 was traded for Item 2 & Item 3
  • Item 4 was traded for Item 5 & Item 6
  • Item 3 was traded for Item 7
  • Item 7 was traded for Item 8
  • etc

What algorithm could you use to determine the relative value of each item?

Example from above:

  • Item 1 was traded for 2 & 3, this would imply that item 1 roughly equal to the value 2 & 3 combined (and more valuable than either one individually)
  • Item 7 was traded for Item 3 (1 for 1 trade) which would imply they have the same value

Now if I had say 300 items, and 1000s of “transaction” data points for the whole system, what’s the best way to determine the relative value of the group?

Example Questions:

  • How much is Item 1 (.00 – 1.00) worth compared to Item 3?
  • How much is Item 1 worth compared to the rest of the pack?

Bonus Points: A python package would be awesome.

submitted by /u/gkamradt
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Toronto AI is a social and collaborative hub to unite AI innovators of Toronto and surrounding areas. We explore AI technologies in digital art and music, healthcare, marketing, fintech, vr, robotics and more. Toronto AI was founded by Dave MacDonald and Patrick O'Mara.