product-affinity.cson

name: "Product affinity"
description: "A generic product affinity model"
outputs:
  affinity:
    veryLow: [0, 25]
    low: [0, 25, 50]
    medium: [25, 50, 75]
    high: [50, 75, 100]
    veryHigh: [75, 100]
inputs:
  # true if both products have the same category; else false
  sameCategory:
    false: [-1, 0, 1]
    true: [0, 1, 2]
  # Absolute value of difference in price between first and
  # second product, as percent of price of first product
  priceDifferencePercent:
    veryLow: [0, 25]
    low: [0, 25, 50]
    medium: [25, 50, 75]
    high: [50, 75, 100]
    veryHigh: [75, 100]
  # Number of customers who've bought the first product
  # that have also bought the second product, as a percentage
  # of all customers who have bought the first product
  percentSharedCustomers:
    veryLow: [0, 25]
    low: [0, 25, 50]
    medium: [25, 50, 75]
    high: [50, 75, 100]
    veryHigh: [75, 100]
  # Number of words in both product's title as percentage
  # of all words in first product's title
  percentSharedTitleWords:
    veryLow: [0, 25]
    low: [0, 25, 50]
    medium: [25, 50, 75]
    high: [50, 75, 100]
    veryHigh: [75, 100]
  # Number of words in both product's description as percentage
  # of all words in first product's description
  percentSharedDescriptionWords:
    veryLow: [0, 25]
    low: [0, 25, 50]
    medium: [25, 50, 75]
    high: [50, 75, 100]
    veryHigh: [75, 100]
rules: [
  "IF sameCategory IS true THEN affinity IS high"
  "IF sameCategory IS false THEN affinity IS low"
  "priceDifferencePercent DECREASES affinity"
  "percentSharedCustomers INCREASES affinity"
  "percentSharedTitleWords INCREASES affinity"
  "percentSharedDescriptionWords INCREASES affinity"
]