@Inproceedings{1367620, author = {Leskovec, Jure and Horvitz, Eric}, title = {Planetary-scale views on a large instant-messaging network}, year = {2008}, number = {}, url = {http://portal.acm.org/citation.cfm?id=1367620}, doi = {http://doi.acm.org/10.1145/1367497.1367620}, const = {\ text} } @Article{crestani1997spreading, author = {Crestani, F.}, title = {Application of Spreading Activation Techniques in Information Retrieval}, journal = {Artificial Intelligence Review}, year = {1997}, number = {6}, url = {http://dx.doi.org/10.1023/A:1006569829653}, const = {\ text} } @Inproceedings{salton1988spreading, author = {Salton, G. and Buckley, C.}, title = {On the use of spreading activation methods in automatic information}, year = {1988}, number = {}, url = {http://portal.acm.org/citation.cfm?id=62447&dl=ACM&coll=GUIDE}, doi = {http://doi.acm.org/10.1145/62437.62447}, const = {\ text} }