In order to be able to use LIBSVM and LIBLINEAR you have to download, compile and install both libraries. - If you are on ArchLinux: pacman -S libsvm liblinear (or you can install liblinear-multicore instead of liblinear) - If you are on Ubutun/Debian: e.g. apt-cache search libsvm (to find the right packages) - If you are on Windows or Mac OS follow the guidelines on the website listed below. - You can also manually download, compile and install both libraries. Read on for further information. To install from source, download the latest versions of LIBSVM and LIBLINEAR: http://www.csie.ntu.edu.tw/~cjlin/libsvm/ http://www.csie.ntu.edu.tw/~cjlin/liblinear/ - From the command line, do "make" in libsvm/. - Now do "make" in libsvm/python/. - You should see a file "libsvm.so.2", which is the binary you need. - Put it in pattern/vector/svm/libsvm-x.xx/ Repeat the steps for LIBLINEAR. You may need to rename option "-soname" to "-install_name" in the Makefile on Mac OS X. You may need to modify pattern/vector/svm/svm.py around line 15 to import the new binary. Please send us a copy of the compiled binary so we can include it in the next release.