Yuanbo Guo Abir Qasem Zhengxiang Pan Jeff Heflin A Requirements Driven Framework for Benchmarking Semantic Web Knowledge Base Systems. 297-309 2007 19 IEEE Trans. Knowl. Data Eng. 2 http://doi.ieeecomputersociety.org/10.1109/TKDE.2007.19 db/journals/tkde/tkde19.html#GuoQPH07