As the Web enters Big Data age, users and search engines may find it more and more difficult to effectively use and manage such big data. To solve this problem, this paper presents a novel search pattern named ExNa by defining its model and basic operations in detail, which can help to design new type of search engines. To validate the ExNa search pattern, we develop a prototype news search engine named KNOWLE, which shows that KNOWLE equipped with ExNa can improve the efficiency of search system.
Research work reported in this paper was jointly supported by a Strategic Grant from City University of Hong Kong (Project No. 7002912), the National Science Foundation of China under grant no. 61071110, and the key project of shanghai municipal education commission under grant no. 13ZZ064.