Schedule

Preliminary Schedule for Half Day (3:00 pm - 6:00 pm)

First Half 3:00 pm - 4:30 am

Introduction & Motivation 3:00 pm - 3:15 pm

• Tutorial overview
• Implicit feedback in IR
• Bias in user feedback

Topic 1: ULTR based on unbiased relevance signals 3:15 pm - 4:15 pm

• Examination hypothesis
• Click models
• Parameter estimation and EM algorithms
• Advanced click models

Part 1 Q&A and Break 4:15 pm - 4:30 pm

Second Half 4:30 pm - 5:30 pm

Topic 2: ULTR based on examination propensity 4:30 pm - 5:25 pm

• Counterfactual learning
• Propensity estimation for online systems
• Advanced topics

Summary 5:25 pm -5:30 pm

• Click models vs. counterfactual learning
• Future directions

Final Q&A 5:30 pm - 6:00 pm