Alexander Buchholz

Latest

• Counterfactual Ranking Evaluation with Flexible Click Models
• Contextual Position Bias Estimation Using a Single Stochastic Logging Policy
• Double clipping: Less-biased variance reduction in off-policy evaluation
• Self-Normalized Off-Policy Estimators for Ranking
• Off-Policy Evaluation for Learning-to-Rank via Interpolating the Item-Position Model and the Position-Based Model