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Numerical Analysis of Effect of Sampling of Alternatives in Discrete Choice Models

机译:离散选择模型中替代品抽样效果的数值分析

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摘要

A multitude of alternatives characterize the choice set in many activity and travel choice contexts. Analysts generally sample alternatives from the choice set in such situations because estimating models from the full choice set can be very expensive or even prohibitive. Numerical experiments were undertaken to examine the effect of the sample size of alternatives on model performance for both a multinomial logit model (for which consistency with a subset of alternatives is guaranteed) and a mixed multinomial logit model (for which no consistency result holds).
机译:在许多活动和旅行选择的背景下,选择集的特征很多。在这种情况下,分析人员通常会从选择集中抽样选择替代方案,因为从完整选择集中估算模型可能非常昂贵,甚至可能令人望而却步。进行了数值实验,以检验多项式logit模型(可保证与备选方案的子集的一致性)和混合多项式logit模型(不具有一致性结果)的替代方案的样本量对模型性能的影响。

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