A Practical Approach for Scalable Conjunctive Query Answering on Acyclic EL+\mathcal{EL}^+ Knowledge Base.

Jing Mei Shengping Liu Guo Tong Xie Aditya Kalyanpur Achille Fokoue Yuan Ni Hanyu Li Yue Pan A Practical Approach for Scalable Conjunctive Query Answering on Acyclic EL+\mathcal{EL}^+ Knowledge Base. 408-423 2009 International Semantic Web Conference http://dx.doi.org/10.1007/978-3-642-04930-9_26 conf/semweb/2009 db/conf/semweb/iswc2009.html#MeiLXKFNLP09