@article{PuY08,
  title = {Keyword query cleaning},
  author = {Ken Q. Pu and Xiaohui Yu},
  year = {2008},
  url = {http://www.vldb.org/pvldb/1/1453955.pdf},
  researchr = {https://researchr.org/publication/PuY08},
  cites = {0},
  citedby = {0},
  journal = {PVLDB},
  volume = {1},
  number = {1},
  pages = {909-920},
}