I have an ILP Inference classifier that relies on a base classifier. When the classifier is initialized and trained, the ILP inference classifier works fine.

However, if I initialize the base classifier with a model file and a lexicon file that are pre-trained, the ILP classifier gives me an error LBJava ERROR: Classifier relation_classifier did not return any scores. ILP inference cannot be performed.

The error message is produced from https://github.com/CogComp/lbjava/blob/434cf0a40e4f2ae08c96d3ae1b96f319eb531d67/lbjava/src/main/java/edu/illinois/cs/cogcomp/lbjava/infer/ILPInference.java#L173-#L174