code: private List<CLIQUESubspace> findOneDimensionalDenseSubspaces(Relation<? extends NumberVector> database) {
      List<CLIQUESubspace> denseSubspaceCandidates = findOneDimensionalDenseSubspaceCandidates(database);
      return prune ? pruneDenseSubspaces(denseSubspaceCandidates) : denseSubspaceCandidates;
    }
docs: Determines the one dimensional dense subspaces and performs a pruning if
  this option is chosen.
  
  @param database the database to run the algorithm on
  @return the one dimensional dense subspaces reverse ordered by their
  coverage