To accomplish the integration, the membership probabilities of 139 olfactory families were estimated for every molecule in the studied fragrance mixture . Only the families with probabilities higher than 0.55 were kept as they were highly certain to be present. Figure displays each molecule's corresponding values. These probabilities acted as weight factors to determine each family's composite odor intensity field samples ψ f (z, t). For the citrus family, as an illustration, the field is computed by taking the product of the membership probability of limonene to the citrus category with the odor intensity field samples of limonene. Subsequently, the result from the product of geraniol's citrus membership probability and its odor intensity field samples is added to this value.