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METHODS AND APPARATUS TO CALIBRATE A CHOICE FORECASTING SYSTEM FOR USE IN MARKET SHARE FORECASTING.
METHODS AND APPARATUS TO CALIBRATE A CHOICE FORECASTING SYSTEM FOR USE IN MARKET SHARE FORECASTING.
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机译:校准用于市场份额预测的选择预测系统的方法和装置。
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摘要
Methods and apparatus to calibrate a choice forecasting system for use in market share forecasting are disclosed. An example disclosed method comprises obtaining market research data to determine a plurality of choice probabilities and a plurality of segment weights, each choice probability representing a probability that a respective population segment will choose a respective alternative from a plurality of alternatives and each segment weight representing a weight of a respective population segment in an overall population, and performing a calibration procedure to calibrate the plurality of choice probabilities and plurality of segment weights, the calibration procedure configured to preserve before and after calibration relative contributions of a pair of population segments to a first choice share corresponding to a first alternative, the first choice share for the first alternative determinable from the plurality of segment weights and a subset of the plurality of choice probab ilities corresponding to the first alternative.
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