Editor’s note
Crossref DOI link: https://doi.org/10.1007/s11432-014-5085-9
Published Online: 2014-06-17
Published Print: 2014-04
Update policy: https://doi.org/10.1007/springer_crossmark_policy
Long, KePing
Zhang, ZhongShan
Text and Data Mining valid from 2014-04-01