diff --git a/src/mlpack/methods/adaboost/adaboost_impl.hpp b/src/mlpack/methods/adaboost/adaboost_impl.hpp
index 7d88c807af..af767d161f 100644
--- a/src/mlpack/methods/adaboost/adaboost_impl.hpp
+++ b/src/mlpack/methods/adaboost/adaboost_impl.hpp
@@ -27,6 +27,7 @@
 #define MLPACK_METHODS_ADABOOST_ADABOOST_IMPL_HPP
 
 #include "adaboost.hpp"
+#include <mlpack/core/util/size_checks.hpp>
 
 namespace mlpack {
 namespace adaboost {
@@ -71,6 +72,9 @@ double AdaBoost<WeakLearnerType, MatType>::Train(
     const size_t iterations,
     const double tolerance)
 {
+  // Sanity check on data
+  util::CheckSameDimensionality(data, labels, "Adaboost::Train()");
+
   // Clear information from previous runs.
   wl.clear();
   alpha.clear();
@@ -242,7 +246,10 @@ void AdaBoost<WeakLearnerType, MatType>::Classify(
     const MatType& test,
     arma::Row<size_t>& predictedLabels,
     arma::mat& probabilities)
-{
+{ 
+  // Sanity Check on Data
+  util::CheckSameDimensionality(test, predictedLabels, "Adaboost::Classify()");
+  
   arma::Row<size_t> tempPredictedLabels(test.n_cols);
 
   probabilities.zeros(numClasses, test.n_cols);
diff --git a/src/mlpack/methods/matrix_completion/matrix_completion.cpp b/src/mlpack/methods/matrix_completion/matrix_completion.cpp
index 6210b69453..6a2b9db523 100644
--- a/src/mlpack/methods/matrix_completion/matrix_completion.cpp
+++ b/src/mlpack/methods/matrix_completion/matrix_completion.cpp
@@ -11,6 +11,7 @@
  */
 
 #include "matrix_completion.hpp"
+#include <mlpack/core/util/size_checks.hpp>
 
 namespace mlpack {
 namespace matrix_completion {
@@ -59,13 +60,7 @@ void MatrixCompletion::CheckValues()
         << "indices does not have 2 rows!" << std::endl;
   }
 
-  if (indices.n_cols != values.n_elem)
-  {
-    Log::Fatal << "MatrixCompletion::CheckValues(): the number of constraint "
-        << "indices (columns of constraint indices matrix) does not match the "
-        << "number of constraint values (length of constraint value vector)!"
-        << std::endl;
-  }
+  util::CheckSameSizes(values, indices, "MatrixCompletion::CheckValues()", "indices");
 
   for (size_t i = 0; i < values.n_elem; ++i)
   {