@article {DBLP:journals/tkde/QinYC12,
	title = {{C}omputing {S}tructural {S}tatistics by {K}eywords in {D}atabases},
	journal = {IEEE Trans. Knowl. Data Eng.},
	volume = {24},
	number = {10},
	year = {2012},
	pages = {1731-1746},
	author = {Lu Qin and Jeffrey Xu Yu and Lijun Chang}
}
