diff --git a/feedbackloop.learner_backup/src/main/java/de/tudresden/inf/st/eraser/feedbackloop.learner_backup/MachineLearningDecoder.java b/feedbackloop.learner_backup/src/main/java/de/tudresden/inf/st/eraser/feedbackloop.learner_backup/MachineLearningDecoder.java
new file mode 100644
index 0000000000000000000000000000000000000000..9d5decee1c21371af37de13909ff2278a8a28782
--- /dev/null
+++ b/feedbackloop.learner_backup/src/main/java/de/tudresden/inf/st/eraser/feedbackloop.learner_backup/MachineLearningDecoder.java
@@ -0,0 +1,4 @@
+package de.tudresden.inf.st.eraser.feedbackloop.learner_backup;
+
+public class MachineLearningDecoder {
+}
diff --git a/feedbackloop.learner_backup/src/main/java/de/tudresden/inf/st/eraser/feedbackloop.learner_backup/MachineLearningEncoder.java b/feedbackloop.learner_backup/src/main/java/de/tudresden/inf/st/eraser/feedbackloop.learner_backup/MachineLearningEncoder.java
new file mode 100644
index 0000000000000000000000000000000000000000..abbfe7299d758e73d6a594f3164b52ef91edfe03
--- /dev/null
+++ b/feedbackloop.learner_backup/src/main/java/de/tudresden/inf/st/eraser/feedbackloop.learner_backup/MachineLearningEncoder.java
@@ -0,0 +1,4 @@
+package de.tudresden.inf.st.eraser.feedbackloop.learner_backup;
+
+public interface MachineLearningEncoder {
+}