Kornilios Kourtis Georgios I. Goumas Nectarios Koziris Improving the Performance of Multithreaded Sparse Matrix-Vector Multiplication Using Index and Value Compression. 511-519 2008 ICPP http://dx.doi.org/10.1109/ICPP.2008.62 conf/icpp/2008 db/conf/icpp/icpp2008.html#KourtisGK08