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Contents
module Hiccup
module Inferable
class Score < Struct.new(:prediction_rate, :brick_rate, :complexity_rate)
# as brick rate rises, our confidence in this guess drops
def brick_penalty
brick_penalty = brick_rate * 0.33
brick_penalty = 1 if brick_penalty > 1
brick_penalty
end
# as the complexity rises, our confidence in this guess drops
# this hash table is a stand-in for a proper formala
#
# A complexity of 1 means that 1 rule is required per input
# date. This means we haven't really discovered a pattern.
def complexity_penalty
complexity_rate
end
# our confidence is weakened by bricks and complexity
def confidence
confidence = 1.0
confidence *= (1 - brick_penalty)
confidence *= (1 - complexity_penalty)
confidence
end
# a number between 0 and 1
def to_f
prediction_rate * confidence
end
end
end
end
Version data entries
17 entries across 17 versions & 1 rubygems