Abstract：With the extensive use of smart devices with location function， a large amount of spatial data is produced， and more and more textual information are included in each datum. However the previous algorithm is only a single text word query and difficult to meet the demands of users. To address the above problem， in this paper， a multi-keyword Fuzzy query algorithm is proposed. In this algorithm， the traditional two-dimensional spatial distance calculation is transformed into Morton code matching to speed up the query efficiency， and the fault-tolerant query is supported by combining the Fuzzy algorithm. Experimental results show that the algorithm has better efficiency and accuracy than the previous query algorithm.
2017, Vol. 51 
