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/* 本组研究 */
# O. Arnold, S. Haas, G. Fettweis, B. Schlegel, T. Kissinger, and W. Lehner. An application-specific instruction set for accelerating set-oriented database primitives. In ACM SIGMOD, pages 767–778, June 2014.
#*PWAH 图运算问题。非循环图的可达性查询运算问题。 #Sebastiaan J. van Schaik et al., A Memory Efficient Reachability Data Structure Through Bit Vector Compression, SOGMOD 2011.
= 索引（搜索引擎） =
