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new 976d4bd104 [SYSTEMDS-3538] New builtin function for false discovery
rates (FDR)
976d4bd104 is described below
commit 976d4bd104c10ed9c6a616bc723f81deb4fa416b
Author: Matthias Boehm <mboe...@gmail.com>
AuthorDate: Fri May 3 20:10:05 2024 +0200
[SYSTEMDS-3538] New builtin function for false discovery rates (FDR)
---
scripts/builtin/fdr.dml | 42 ++++++++++++++++++++++
.../java/org/apache/sysds/common/Builtins.java | 1 +
2 files changed, 43 insertions(+)
diff --git a/scripts/builtin/fdr.dml b/scripts/builtin/fdr.dml
new file mode 100644
index 0000000000..8d1420a085
--- /dev/null
+++ b/scripts/builtin/fdr.dml
@@ -0,0 +1,42 @@
+#-------------------------------------------------------------
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements. See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership. The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License. You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied. See the License for the
+# specific language governing permissions and limitations
+# under the License.
+#
+#-------------------------------------------------------------
+
+# This built-in function computes the false discovery rate
+# for all classes as false-predictions / all-predictions.
+#
+# INPUT:
+#
------------------------------------------------------------------------------
+# P vector of predictions (1-based, recoded), shape: [N x 1]
+# Y vector of actual labels (1-based, recoded), shape: [N x 1]
+#
------------------------------------------------------------------------------
+#
+# OUTPUT:
+#
------------------------------------------------------------------------------
+# FDR vector of false discovery rate per class, shape: [M x 1]
+#
------------------------------------------------------------------------------
+
+m_fdr = function(Matrix[Double] P, Matrix[Double] Y)
+ return (Matrix[Double] FDR)
+{
+ [cS, cA] = confusionMatrix(P, Y);
+ FDR = (rowSums(cS)-diag(cS)) / rowSums(cS);
+}
+
diff --git a/src/main/java/org/apache/sysds/common/Builtins.java
b/src/main/java/org/apache/sysds/common/Builtins.java
index 61faccc0bc..5c334f72ae 100644
--- a/src/main/java/org/apache/sysds/common/Builtins.java
+++ b/src/main/java/org/apache/sysds/common/Builtins.java
@@ -131,6 +131,7 @@ public enum Builtins {
EVAL("eval", false),
EVALLIST("evalList", false),
F1SCORE("f1Score", true),
+ FDR("fdr", "FDR", true),
FIT_PIPELINE("fit_pipeline", true),
FIX_INVALID_LENGTHS("fixInvalidLengths", true),
FIX_INVALID_LENGTHS_APPLY("fixInvalidLengthsApply", true),
