Before revision:  As one of the main results , we prove that dissimilarity allows for fixed-parameter tractability for the parameter solution size, thereby contrasting our W[1]-hardness proof of the corresponding similarity case  .
After revision:  As one of the main technical results (employing so-called representative sets known from non-temporal settings) , we prove that dissimilarity allows for fixed-parameter tractability for the parameter solution size, thereby contrasting our W[1]-hardness proof of the corresponding similarity case .