'Normalized discounted cumulative gain' presentation slideshows

Community Detection and Behavior Study for Social Computing

Community Detection and Behavior Study for Social Computing. Huan Liu + , Lei Tang + , and Nitin Agarwal * + Arizona State University * University of Arkansas at Little Rock. Updated slides available at http://www.public.asu.edu/~ltang9/

1.47k views • 131 slides

CS276 Information Retrieval and Web Search Chris Manning, Pandu Nayak and Prabhakar Raghavan

CS276 Information Retrieval and Web Search Chris Manning, Pandu Nayak and Prabhakar Raghavan Evaluation. Situation.

577 views • 44 slides

Enhancing Web Search by Promoting Multiple Engine Use

Enhancing Web Search by Promoting Multiple Engine Use. Ryen W. White, Matthew Richardson, Mikhail Bilenko Microsoft Research Allison Heath Rice University. User Loyalty. Users are generally loyal to one engine

432 views • 27 slides

Mining the Search Trails of Surfing Crowds: Identifying Relevant Websites from User Activity Data

Mining the Search Trails of Surfing Crowds: Identifying Relevant Websites from User Activity Data. Misha Bilenko and Ryen White presented by Matt Richardson Microsoft Research. Search = Modeling User Behavior. Retrieval functions estimate relevance from behavior of several user groups:

388 views • 21 slides

Mining the Search Trails of Surfing Crowds: Identifying Relevant Websites from User Activity Data

Mining the Search Trails of Surfing Crowds: Identifying Relevant Websites from User Activity Data. Misha Bilenko and Ryen White presented by Matt Richardson Microsoft Research. Search = Modeling User Behavior. Retrieval functions estimate relevance from behavior of several user groups:

351 views • 21 slides

Evaluation

Evaluation. Rank-Based Measures. Binary relevance Precision@K (P@K) Mean Average Precision (MAP) Mean Reciprocal Rank (MRR) Multiple levels of relevance Normalized Discounted Cumulative Gain (NDCG). Precision@K. Set a rank threshold K Compute % relevant in top K

421 views • 20 slides

Personalized Query Expansion for the Web

296 views • 18 slides