By the way, I don't understand the meaning of the dissimilarity parameter of manifold.MDS. In which case a "dissimilarity" is euclidean ? Sorry, I am quite knew with some concepts.
Jean-Baptiste Pressac Traitement et analyse de bases de données Production et diffusion de corpus numériques Centre de Recherche Bretonne et Celtique Unité mixte de service (UMS) 3554 20 rue Duquesne CS 93837 29238 Brest cedex 3 tel : +33 (0)2 98 01 68 95 fax : +33 (0)2 98 01 63 93 Le 03/03/2015 11:09, Joel Nothman a écrit :
I think DSW_jaccard_matrix is a matrix of similarity (which is what Jaccard usually means) not of dissimilarity. Try negating it before MDS.On 3 March 2015 at 20:07, Jean-Baptiste Pressac <jean-baptiste.pres...@univ-brest.fr <mailto:jean-baptiste.pres...@univ-brest.fr>> wrote:Hello, I tried to reproduce the analysis of events co-attended by woman via manifold MDS (shared on IPython Notebook) <http://nbviewer.ipython.org/github/JBPressac/MDS-of-DGG/blob/master/Davis%20Southern%20Women%20MDS%20of%20Jaccard%20coefficient.ipynb>, but the MDS does not reflects the data. I certainly did something wrong, but I could'nt figure out how to do a proper MDS. Any clue would be appreciated. Thanks,-- Jean-Baptiste PressacTraitement et analyse de bases de données Production et diffusion de corpus numériques Centre de Recherche Bretonne et Celtique Unité mixte de service (UMS) 3554 20 rue Duquesne CS 93837 29238 Brest cedex 3 tel :+33 (0)2 98 01 68 95 <tel:%2B33%20%280%292%2098%2001%2068%2095> fax :+33 (0)2 98 01 63 93 <tel:%2B33%20%280%292%2098%2001%2063%2093> ------------------------------------------------------------------------------ Dive into the World of Parallel Programming The Go Parallel Website, sponsored by Intel and developed in partnership with Slashdot Media, is your hub for all things parallel software development, from weekly thought leadership blogs to news, videos, case studies, tutorials and more. Take a look and join the conversation now. http://goparallel.sourceforge.net/ _______________________________________________ Scikit-learn-general mailing list Scikit-learn-general@lists.sourceforge.net <mailto:Scikit-learn-general@lists.sourceforge.net> https://lists.sourceforge.net/lists/listinfo/scikit-learn-general ------------------------------------------------------------------------------ Dive into the World of Parallel Programming The Go Parallel Website, sponsored by Intel and developed in partnership with Slashdot Media, is your hub for all things parallel software development, from weekly thought leadership blogs to news, videos, case studies, tutorials and more. Take a look and join the conversation now. http://goparallel.sourceforge.net/ _______________________________________________ Scikit-learn-general mailing list Scikit-learn-general@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/scikit-learn-general
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