Amit Pathak Soumen Chakrabarti Manish S. Gupta Index Design for Dynamic Personalized PageRank. 1489-1491 2008 ICDE http://doi.ieeecomputersociety.org/10.1109/ICDE.2008.4497599 conf/icde/2008 db/conf/icde/icde2008.html#PathakCG08