@article{li-tmm09-tag,
author = {Xirong Li and Cees G. M. Snoek and Marcel Worring},
title = {Learning Social Tag Relevance by Neighbor Voting},
journal ={IEEE Transactions on Multimedia},
pages = {1310-1322},
month = {November}, 
year = {2009},
volume = {11},
number = {7},
}