Abstract
- selection bias, which occurs because clicked documents are reflective of what documents have been shown to the user in the first place.
- propose new counterfactual approaches which adapt Heckman’s two-stage method and accounts for selection and position bias in LTR systems
- our proposed methods are much more robust to noise and have better accuracy compared to existing unbiased LTR algorithms
B) References
- paper link: https://arxiv.org/abs/2001.11358