WSDM 2020, Houston, Texas Highlights and Selected Papers Posted on February 6, 2020 Keynote Kristen Grauman: Computer Vision for Fashion - From Individual Recommendations to World-wide Trends Oral Presentations Analyzing the Impact of Filter Bubbles on Social Network Polarization Ultra Fine-Grained Image Semantic Embedding Separate and Attend in Personal Email Search Enhancing Re-finding Behavior with External Memories for Personalized Search