       spectra3&      knn&     &  -100&  -100&  -100&  -100\\
               &  knn+cnn&     &   -81&   -72&   -88&   -95\\
               &  knn+mcs&     &   -81&      &      &      \\
               &  knn+psc&     &  -100&  -100&  -100&  -100\\
\hline
       spectra5&      knn&     &  -100&  -100&  -100&  -100\\
               &  knn+cnn&     &  -100&  -100&  -100&  -100\\
               &  knn+mcs&     &   -75&   -66&   -25&      \\
               &  knn+psc&     &  -100&  -100&  -100&  -100\\
\hline
      spectra10&      knn&     &   -80&  -100&  -100&  -100\\
               &  knn+cnn&     &   -50&  -100&  -100&  -100\\
               &  knn+mcs&     &      &      &      &      \\
               &  knn+psc&     &  -100&  -100&  -100&  -100\\
\hline
      spectra20&      knn&     &  -100&  -100&  -100&  -100\\
               &  knn+cnn&     &  -100&  -100&  -100&  -100\\
               &  knn+mcs&     &   -50&   -66&   -66&   -50\\
               &  knn+psc&     &  -100&  -100&  -100&  -100\\
