Jianchuan Yin Fang Dong Nini Wang Modified Gram-Schmidt Algorithm for Extreme Learning Machine. 517-520 2009 ISCID (2) https://doi.org/10.1109/ISCID.2009.275 https://doi.ieeecomputersociety.org/10.1109/ISCID.2009.275 conf/iscid/2009 db/conf/iscid/iscid2009-2.html#YinDW09