Hi Satrajit, I believe the current implementation is equivalent to the first several equations in this document: http://www.math.ucsd.edu/~fan/research/cb/ch1.pdf It may be that there are several ways to define a laplacian; I'm not an expert on the subject. Gael might be able to weigh in - I think he contributed the current Laplacian implementation.
FYI, I'm working on some related things in a current scipy PR: https://github.com/scipy/scipy/pull/119 (unfortunately it's been sitting idle for the last month or so - I hope to be able to finish and merge it some time soon). Jake Satrajit Ghosh wrote: > i've opened an issue on computing graph laplacians at: > > https://github.com/scikit-learn/scikit-learn/issues/811 > > any thoughts would be much welcome. > > cheers, > > satra > > ------------------------------------------------------------------------ > > ------------------------------------------------------------------------------ > Live Security Virtual Conference > Exclusive live event will cover all the ways today's security and > threat landscape has changed and how IT managers can respond. Discussions > will include endpoint security, mobile security and the latest in malware > threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ > ------------------------------------------------------------------------ > > _______________________________________________ > Scikit-learn-general mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/scikit-learn-general > ------------------------------------------------------------------------------ Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ _______________________________________________ Scikit-learn-general mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/scikit-learn-general
