diff --git a/orca_python/configurations/full_functionality_test.json b/orca_python/configurations/full_functionality_test.json
index fb949d5..99c8bc3 100644
--- a/orca_python/configurations/full_functionality_test.json
+++ b/orca_python/configurations/full_functionality_test.json
@@ -1,92 +1,76 @@
 {
-
-
-	"general_conf": {
-
-		"basedir": "orca_python/datasets/data",
-		"datasets": ["tae", "balance-scale", "contact-lenses"],
-		"hyperparam_cv_nfolds": 3,
-		"jobs": 10,
-		"input_preprocessing": "std",
-		"output_folder": "my_runs/",
-		"metrics": ["ccr", "mae", "amae", "mze"],
-		"cv_metric": "mae"
-	},
-
-
-	"configurations": {
-
-		"SVM": {
-
-			"classifier": "sklearn.svm.SVC",
-			"parameters": {
-				"C": [0.001, 0.1, 1, 10, 100],
-				"gamma": [0.1, 1, 10]
-			}
-		},
-
-
-		"SVMOP": {
-
-			"classifier": "orca_python.classifiers.OrdinalDecomposition",
-			"parameters": {
-				"dtype": "ordered_partitions",
-				"decision_method": "frank_hall",
-				"base_classifier": "sklearn.svm.SVC",
-				"parameters": {
-					"C": [0.01, 0.1, 1, 10],
-					"gamma": [0.01, 0.1, 1, 10],
-					"probability": ["True"]
-				}
-
-			}
-		},
-
-
-		"LR": {
-
-			"classifier": "orca_python.classifiers.OrdinalDecomposition",
-			"parameters": {
-				"dtype": ["ordered_partitions", "one_vs_next"],
-				"decision_method": "exponential_loss",
-				"base_classifier": "sklearn.linear_model.LogisticRegression",
-				"parameters": {
-					"solver": ["liblinear"],
-					"C": [0.01, 0.1, 1, 10],
-					"penalty": ["l1","l2"]
-				}
-
-			}
-		},
-
-		"REDSVM": {
-
-			"classifier": "orca_python.classifiers.REDSVM",
-			"parameters": {
-			    "kernel": 2,
-				"degree": 3,
-				"gamma": 0.1,
-				"coef0": 0,
-				"C": 1,
-				"tol": 0.001,
-				"shrinking": 1
-			}
-
-		},
-
-		"SVOREX": {
-
-			"classifier": "orca_python.classifiers.SVOREX",
-			"parameters": {
-				"kernel": 0,
-				"C": [0.1, 1, 10],
-				"kappa": [0.1, 1, 10],
-				"tol": 0.001
-			}
-
-		}
-
-	}
-
-
+    "general_conf": {
+        "basedir": "orca_python/datasets/data",
+        "datasets": [
+            "balance-scale",
+            "car",
+            "contact-lenses",
+            "ERA",
+            "tae",
+            "winequality-red"
+        ],
+        "hyperparam_cv_nfolds": 3,
+        "jobs": 10,
+        "input_preprocessing": "std",
+        "output_folder": "my_runs/",
+        "metrics": ["ccr", "mae", "amae", "mze"],
+        "cv_metric": "mae"
+    },
+    "configurations": {
+        "SVM": {
+            "classifier": "sklearn.svm.SVC",
+            "parameters": {
+                "C": [0.001, 0.1, 1, 10, 100],
+                "gamma": [0.1, 1, 10]
+            }
+        },
+        "SVMOP": {
+            "classifier": "orca_python.classifiers.OrdinalDecomposition",
+            "parameters": {
+                "dtype": "ordered_partitions",
+                "decision_method": "frank_hall",
+                "base_classifier": "sklearn.svm.SVC",
+                "parameters": {
+                    "C": [0.01, 0.1, 1, 10],
+                    "gamma": [0.01, 0.1, 1, 10],
+                    "probability": ["True"]
+                }
+            }
+        },
+        "LR": {
+            "classifier": "orca_python.classifiers.OrdinalDecomposition",
+            "parameters": {
+                "dtype": ["ordered_partitions", "one_vs_next"],
+                "decision_method": "exponential_loss",
+                "base_classifier": "sklearn.linear_model.LogisticRegression",
+                "parameters": {
+                    "solver": ["liblinear"],
+                    "C": [0.01, 0.1, 1, 10],
+                    "penalty": ["l1", "l2"]
+                }
+
+            }
+        },
+        "REDSVM": {
+            "classifier": "orca_python.classifiers.REDSVM",
+            "parameters": {
+                "kernel": "rbf",
+                "degree": 3,
+                "gamma": 0.1,
+                "coef0": 0,
+                "C": 1,
+                "tol": 0.001,
+                "shrinking": 1
+            }
+        },
+        "SVOREX": {
+            "classifier": "orca_python.classifiers.SVOREX",
+            "parameters": {
+                "kernel": "gaussian",
+                "C": [0.1, 1, 10],
+                "kappa": [0.1, 1, 10],
+                "tol": 0.001
+            }
+        }
+    }
 }
diff --git a/orca_python/configurations/nnop_mae_test.json b/orca_python/configurations/nnop_mae_test.json
index fd099b0..a90d9c8 100644
--- a/orca_python/configurations/nnop_mae_test.json
+++ b/orca_python/configurations/nnop_mae_test.json
@@ -1,34 +1,23 @@
 {
-
     "general_conf": {
-
-		"basedir": "datasets",
-		"datasets": ["balance-scale", "contact-lenses", "tae", "car", "winequality-red", "ERA"],
-		"hyperparam_cv_nfolds": 5,
-		"jobs": 10,
-		"input_preprocessing": "std",
-		"output_folder": "my_runs/",
-		"metrics": ["ccr", "mae", "mze"],
-		"cv_metric": "mae"
-
-	},
-
-
-	"configurations": {
-
-		"nnop-mae": {
-
-			"classifier": "NNOP",
-			"parameters": {
+        "basedir": "orca_python/datasets/data",
+        "datasets": ["balance-scale"],
+        "hyperparam_cv_nfolds": 3,
+        "jobs": 10,
+        "input_preprocessing": "std",
+        "output_folder": "my_runs/",
+        "metrics": ["ccr", "mae", "mze"],
+        "cv_metric": "mae"
+    },
+    "configurations": {
+        "NNOP-MAE": {
+            "classifier": "orca_python.classifiers.NNOP",
+            "parameters": {
                 "epsilon_init": 0.5,
-                "n_hidden": [5,10,20,30,40,50],
+                "n_hidden": [5, 10, 20, 30, 40, 50],
                 "max_iter": [250, 500],
-				"lambda_value": [0, 0.01, 1]
-
+                "lambda_value": [0, 0.01, 1]
             }
-
-		}
-
-	}
-
+        }
+    }
 }
diff --git a/orca_python/configurations/nnop_mze_test.json b/orca_python/configurations/nnop_mze_test.json
index b98f0cc..d6bbab3 100644
--- a/orca_python/configurations/nnop_mze_test.json
+++ b/orca_python/configurations/nnop_mze_test.json
@@ -1,34 +1,23 @@
 {
-
     "general_conf": {
-
-		"basedir": "datasets",
-		"datasets": ["balance-scale", "contact-lenses", "tae", "car", "winequality-red", "ERA"],
-		"hyperparam_cv_nfolds": 5,
+		"basedir": "orca_python/datasets/data",
+		"datasets": ["balance-scale"],
+		"hyperparam_cv_nfolds": 3,
 		"jobs": 10,
 		"input_preprocessing": "std",
 		"output_folder": "my_runs/",
 		"metrics": ["ccr", "mae", "mze"],
 		"cv_metric": "mze"
-
 	},
-
-
 	"configurations": {
-
-		"nnop-mze": {
-
-			"classifier": "NNPOM",
+		"NNOP-MZE": {
+			"classifier": "orca_python.classifiers.NNOP",
 			"parameters": {
                 "epsilon_init": 0.5,
-                "n_hidden": [5,10,20,30,40,50],
+                "n_hidden": [5, 10, 20, 30, 40, 50],
                 "max_iter": [250, 500],
 				"lambda_value": [0, 0.01, 1]
-
             }
-
 		}
-
 	}
-
 }
diff --git a/orca_python/configurations/nnop_test.json b/orca_python/configurations/nnop_test.json
deleted file mode 100644
index cbb3522..0000000
--- a/orca_python/configurations/nnop_test.json
+++ /dev/null
@@ -1,33 +0,0 @@
-{
-
-    "general_conf": {
-
-		"basedir": "tests/test_datasets/test_nnpom_nnop_load_dataset",
-		"datasets": ["toy"],
-		"hyperparam_cv_nfolds": 3,
-		"jobs": 10,
-		"output_folder": "my_runs/",
-		"metrics": ["ccr", "mae", "mze"],
-		"cv_metric": ["mae", "mze"]
-
-	},
-
-
-	"configurations": {
-
-		"nnop": {
-
-			"classifier": "NNOP",
-			"parameters": {
-                "epsilon_init": 0.5,
-                "n_hidden": 10,
-                "max_iter": 1000,
-				"lambda_value": 0
-
-            }
-
-		}
-
-	}
-
-}
diff --git a/orca_python/configurations/nnpom_mae_test.json b/orca_python/configurations/nnpom_mae_test.json
index 3de10e9..c73bb8d 100644
--- a/orca_python/configurations/nnpom_mae_test.json
+++ b/orca_python/configurations/nnpom_mae_test.json
@@ -1,33 +1,23 @@
 {
-
     "general_conf": {
-
-		"basedir": "tests/test_datasets/test_nnpom_nnop_load_dataset",
-		"datasets": ["toy"],
-		"hyperparam_cv_nfolds": 5,
+		"basedir": "orca_python/datasets/data",
+		"datasets": ["balance-scale"],
+		"hyperparam_cv_nfolds": 3,
 		"jobs": 10,
+		"input_preprocessing": "std",
 		"output_folder": "my_runs/",
 		"metrics": ["ccr", "mae", "mze"],
-		"cv_metric": "ccr"
-
+		"cv_metric": "mae"
 	},
-
-
 	"configurations": {
-
-		"expectedPredictions0": {
-
-			"classifier": "NNPOM",
+		"NNPOM-MAE": {
+			"classifier": "orca_python.classifiers.NNPOM",
 			"parameters": {
                 "epsilon_init": 0.5,
-                "n_hidden": 10,
-                "max_iter": 500,
-				"lambda_value": 0.01
-
+                "n_hidden": [5, 10, 20, 30, 40, 50],
+                "max_iter": [250, 500],
+                "lambda_value": [0, 0.01, 1]
             }
-
 		}
-
 	}
-
 }
diff --git a/orca_python/configurations/nnpom_mze_test.json b/orca_python/configurations/nnpom_mze_test.json
index aa1fb3e..5bac5e1 100644
--- a/orca_python/configurations/nnpom_mze_test.json
+++ b/orca_python/configurations/nnpom_mze_test.json
@@ -1,34 +1,23 @@
 {
-
     "general_conf": {
-
-		"basedir": "datasets",
-		"datasets": ["balance-scale", "contact-lenses", "tae", "car", "winequality-red", "ERA"],
-		"hyperparam_cv_nfolds": 5,
-		"jobs": 10,
-		"input_preprocessing": "std",
-		"output_folder": "my_runs/",
-		"metrics": ["ccr", "mae", "mze"],
-		"cv_metric": "mze"
-
-	},
-
-
-	"configurations": {
-
-		"nnop-mze": {
-
-			"classifier": "NNOP",
-			"parameters": {
+        "basedir": "orca_python/datasets/data",
+        "datasets": ["balance-scale"],
+        "hyperparam_cv_nfolds": 3,
+        "jobs": 10,
+        "input_preprocessing": "std",
+        "output_folder": "my_runs/",
+        "metrics": ["ccr", "mae", "mze"],
+        "cv_metric": "mze"
+    },
+    "configurations": {
+        "NNPOM-MZE": {
+            "classifier": "orca_python.classifiers.NNPOM",
+            "parameters": {
                 "epsilon_init": 0.5,
-                "n_hidden": [5,10,20,30,40,50],
+                "n_hidden": [5, 10, 20, 30, 40, 50],
                 "max_iter": [250, 500],
-				"lambda_value": [0, 0.01, 1]
-
+                "lambda_value": [0, 0.01, 1]
             }
-
-		}
-
-	}
-
+        }
+    }
 }
diff --git a/orca_python/configurations/orca_comparison.json b/orca_python/configurations/orca_comparison.json
deleted file mode 100644
index d1a87aa..0000000
--- a/orca_python/configurations/orca_comparison.json
+++ /dev/null
@@ -1,43 +0,0 @@
-{
-
-
-	"general_conf": {
-
-		"basedir": "datasets/",
-		"datasets": ["balance-scale", "calhousing-5", "calhousing-10", "car", "census2-5", "census2-10", "contact-lenses", "ERA", "tae", "winequality-red"],
-		"input_preprocessing": "std",
-		"hyperparam_cv_nfolds": 5,
-		"jobs": -1,
-		"output_folder": "my_runs/",
-		"metrics": ["ccr", "mae", "mze"],
-		"cv_metric": "mae"
-
-	},
-
-
-	"configurations": {
-
-		"redsvm": {
-
-			"classifier": "REDSVM",
-			"parameters": {
-				"C": [0.001, 0.01, 0.1, 1, 10, 100, 1000],
-				"gamma": [0.001, 0.01, 0.1, 1, 10, 100, 1000]
-			}
-
-        },
-
-        "svorex": {
-
-			"classifier": "SVOREX",
-			"parameters": {
-				"C": [0.001, 0.01, 0.1, 1, 10, 100, 1000],
-				"kappa": [0.001, 0.01, 0.1, 1, 10, 100, 1000]
-			}
-
-		}
-
-	}
-
-
-}
diff --git a/orca_python/configurations/redsvm_test.json b/orca_python/configurations/redsvm_test.json
index f5ca72a..d3f6bb5 100644
--- a/orca_python/configurations/redsvm_test.json
+++ b/orca_python/configurations/redsvm_test.json
@@ -1,33 +1,22 @@
 {
-
-
-	"general_conf": {
-
-		"basedir": "datasets/",
-		"datasets": ["tae", "balance-scale", "contact-lenses"],
-		"input_preprocessing": "std",
-		"hyperparam_cv_nfolds": 3,
-		"jobs": 10,
-		"output_folder": "my_runs/",
-		"metrics": ["ccr", "mae", "mze"],
-		"cv_metric": "mae"
-
-	},
-
-
-	"configurations": {
-
-		"redsvm": {
-
-			"classifier": "REDSVM",
-			"parameters": {
-				"C": [0.1, 1, 10],
-				"gamma": [0.1, 1, 10]
-			}
-
-		}
-
-	}
-
-
+    "general_conf": {
+        "basedir": "orca_python/datasets/data",
+        "datasets": ["balance-scale"],
+        "hyperparam_cv_nfolds": 3,
+        "jobs": 10,
+        "input_preprocessing": "std",
+        "output_folder": "my_runs/",
+        "metrics": ["ccr", "mae", "mze"],
+        "cv_metric": "mae"
+    },
+    "configurations": {
+        "REDSVM": {
+            "classifier": "orca_python.classifiers.REDSVM",
+            "parameters": {
+                "kernel": "rbf",
+                "C": [0.001, 0.01, 0.1, 1, 10, 100, 1000],
+                "gamma": [0.001, 0.01, 0.1, 1, 10, 100, 1000]
+            }
+        }
+    }
 }
diff --git a/orca_python/configurations/single_test.json b/orca_python/configurations/single_test.json
deleted file mode 100644
index 6442da4..0000000
--- a/orca_python/configurations/single_test.json
+++ /dev/null
@@ -1,43 +0,0 @@
-{
-
-
-	"general_conf": {
-
-		"basedir": "datasets/",
-		"datasets": ["tae", "balance-scale", "contact-lenses"],
-		"hyperparam_cv_nfolds": 3,
-		"jobs": 10,
-		"output_folder": "my_runs/",
-		"metrics": ["ccr", "mae", "mze"],
-		"cv_metric": "mae"
-	},
-
-
-	"configurations": {
-
-		"SVMOP": {
-
-			"classifier": "OrdinalDecomposition",
-			"parameters": {
-				"dtype": "ordered_partitions",
-				"decision_method": "frank_hall",
-				"base_classifier": "sklearn.svm.SVC",
-				"parameters": {
-					"C": [0.1, 1, 10],
-					"gamma": [0.1, 1, 10],
-					"probability": ["True"]
-				}
-
-			}
-		}
-
-
-
-
-	}
-
-
-
-
-
-}
diff --git a/orca_python/configurations/svmop_test.json b/orca_python/configurations/svmop_test.json
new file mode 100644
index 0000000..229f4c9
--- /dev/null
+++ b/orca_python/configurations/svmop_test.json
@@ -0,0 +1,26 @@
+{
+    "general_conf": {
+        "basedir": "orca_python/datasets/data",
+        "datasets": ["balance-scale"],
+        "hyperparam_cv_nfolds": 3,
+        "jobs": 10,
+        "output_folder": "my_runs/",
+        "metrics": ["ccr", "mae", "mze"],
+        "cv_metric": "mae"
+    },
+    "configurations": {
+        "SVMOP": {
+            "classifier": "orca_python.classifiers.OrdinalDecomposition",
+            "parameters": {
+                "dtype": "ordered_partitions",
+                "decision_method": "frank_hall",
+                "base_classifier": "sklearn.svm.SVC",
+                "parameters": {
+                    "C": [0.1, 1, 10],
+                    "gamma": [0.1, 1, 10],
+                    "probability": ["True"]
+                }
+            }
+        }
+    }
+}
diff --git a/orca_python/configurations/svorex_test.json b/orca_python/configurations/svorex_test.json
index 0d29374..3f92e36 100644
--- a/orca_python/configurations/svorex_test.json
+++ b/orca_python/configurations/svorex_test.json
@@ -1,34 +1,22 @@
 {
-
-
-	"general_conf": {
-
-		"basedir": "datasets/",
-		"datasets": ["tae", "balance-scale", "contact-lenses"],
-		"input_preprocessing": "std",
-		"hyperparam_cv_nfolds": 3,
-		"jobs": 10,
-		"output_folder": "my_runs/",
-		"metrics": ["ccr", "mae", "mze"],
-		"cv_metric": "mae"
-
-	},
-
-
-	"configurations": {
-
-		"svorex": {
-
-			"classifier": "SVOREX",
-			"parameters": {
-				"kernel": 0,
-				"C": [0.1, 1, 10],
-				"kappa": [0.1, 1, 10]
-			}
-
-		}
-
-	}
-
-
+    "general_conf": {
+        "basedir": "orca_python/datasets/data",
+        "datasets": ["balance-scale"],
+        "hyperparam_cv_nfolds": 3,
+        "jobs": 10,
+        "input_preprocessing": "std",
+        "output_folder": "my_runs/",
+        "metrics": ["ccr", "mae", "mze"],
+        "cv_metric": "mae"
+    },
+    "configurations": {
+        "SVOREX": {
+            "classifier": "orca_python.classifiers.SVOREX",
+            "parameters": {
+                "kernel": "gaussian",
+                "C": [0.001, 0.01, 0.1, 1, 10, 100, 1000],
+                "kappa": [0.001, 0.01, 0.1, 1, 10, 100, 1000]
+            }
+        }
+    }
 }