Title
Learning to rank by aggregating expert preferences
Abstract
We present a general treatment of the problem of aggregating preferences from several experts into a consensus ranking, in the context where information about a target ranking is available. Specifically, we describe how such problems can be converted into a standard learning-to-rank one on which existing learning solutions can be invoked. This transformation allows us to optimize the aggregating function for any target IR metric, such as Normalized Discounted Cumulative Gain, or Expected Reciprocal Rank. When applied to crowdsourcing and meta-search benchmarks, our new algorithm improves on state-of-the-art preference aggregation methods.
Year
DOI
Venue
2012
10.1145/2396761.2396868
CIKM
Keywords
Field
DocType
target ranking,consensus ranking,general treatment,normalized discounted cumulative gain,meta-search benchmarks,target ir,expected reciprocal rank,aggregating function,new algorithm,aggregating preference,aggregating expert preference,meta search,preference aggregation,crowdsourcing
Data mining,Learning to rank,Aggregation problem,Reciprocal,Metasearch engine,Information retrieval,Ranking,Crowdsourcing,Computer science,Normalized discounted cumulative gain,Artificial intelligence,Machine learning
Conference
Citations 
PageRank 
References 
6
0.44
17
Authors
3
Name
Order
Citations
PageRank
Maksims Volkovs121614.48
Hugo Larochelle27692488.99
Richard S. Zemel34958425.68