$ sudo apt-get remove libsvm3 

Uninstall libsvm3 including dependent package

If you would like to remove libsvm3 and it's dependent packages which are no longer needed from Ubuntu,

$ sudo apt-get remove --auto-remove libsvm3 

Use Purging libsvm3

If you use with purge options to libsvm3 package all the configuration and dependent packages will be removed.

$ sudo apt-get purge libsvm3 

If you use purge options along with auto remove, will be removed everything regarding the package, It's really useful when you want to reinstall again.

$ sudo apt-get purge --auto-remove libsvm3 

See Also,