2Yang H, Dasdan A, Hsiao R L, et al.Map-reduce-merge: sim- plified relational data processing on large clusters[C]//Zhou L Z, Ling T W.Proceedings of International Confererlce on Management of Data, Beijing.USA: Association for Computing Machinery, 2007 : 1029-1040.
3Zhang Shubin, Han Jizhong, Liu Zhiyong, et al.SJMR: paral- lelizing spatial Join with MapReduce on clusters[C]//Steding T.Proceedings of International Conference on Cluster Com- puting and Workshops, New Orleans, LA.USA: IEEE Com- puter Society, 2009 : 1-4.
4Wang Kai, Han Jizhong, Tu Bibo, et al.Accelerating spatial data processing with MapReduce[C]//Jiang H.Proceedings of the 16th International Conference on Parallel and Distributed Systems, Shanghai.USA: IEEE Computer Society, 2010: 229-236.
5Stonebraker M.SQL databases v.NoSQL databases[J].Commu- nications of the ACM,2010,53(4) : 10-11.
6Cary A, Sun Zhengguo, Hristidis V, et al.Experienees on pro- cessing spatial data with MapReduce[J].Seientifie and Statis- tical Database, 2009: 302-319.