{"id":607803,"date":"2019-09-09T07:55:49","date_gmt":"2019-09-09T14:55:49","guid":{"rendered":"https:\/\/www.microsoft.com\/en-us\/research\/?post_type=msr-research-item&p=607803"},"modified":"2019-09-09T07:58:01","modified_gmt":"2019-09-09T14:58:01","slug":"learning-when-to-stop-searching","status":"publish","type":"msr-research-item","link":"https:\/\/www.microsoft.com\/en-us\/research\/publication\/learning-when-to-stop-searching\/","title":{"rendered":"Learning When to Stop Searching"},"content":{"rendered":"

In the classical secretary problem, one attempts to find the maximum of an unknown and unlearnable distribution through sequential search. In many real-world searches, however, distributions are not entirely unknown and can be learned through experience. To investigate learning in such settings, we conduct a large-scale behavioral experiment in which people search repeatedly from fixed distributions in a \u201crepeated secretary problem.\u201d In contrast to prior investigations that find no evidence for learning in the classical scenario, in the repeated setting we observe substantial learning resulting in near-optimal stopping behavior. We conduct a Bayesian comparison of multiple behavioral models, which shows that participants\u2019 behavior is best described by a class of threshold-based models that contains the theoretically optimal strategy. Fitting such a threshold-based model to data reveals players\u2019 estimated thresholds to be close to the optimal thresholds after only a small number of games.<\/p>\n","protected":false},"excerpt":{"rendered":"

In the classical secretary problem, one attempts to find the maximum of an unknown and unlearnable distribution through sequential search. In many real-world searches, however, distributions are not entirely unknown and can be learned through experience. To investigate learning in such settings, we conduct a large-scale behavioral experiment in which people search repeatedly from fixed 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