Inverse Propensity Score based offline estimator for deterministic ranking lists using position bias

Autor: Wood, Nick, Sidana, Sumit
Rok vydání: 2022
Předmět:
Druh dokumentu: Working Paper
Popis: In this work, we present a novel way of computing IPS using a position-bias model for deterministic logging policies. This technique significantly widens the policies on which OPE can be used. We validate this technique using two different experiments on industry-scale data. The OPE results are clearly strongly correlated with the online results, with some constant bias. The estimator requires the examination model to be a reasonably accurate approximation of real user behaviour.
Comment: 8 Pages, 2 Figures
Databáze: arXiv