package eu.dnetlib.data.proto; option java_package = "eu.dnetlib.data.proto"; option java_outer_classname = "DocumentClassesProto"; message DocumentClasses { // ID of the class of documents this document belongs to. // This class was obtained using “classificationMethod1” method // - in practice, some meaningful name should be inserted here, e.g. “SVM”. optional int32 classificationMethod1ClassId = 1; optional int32 classificationMethod2ClassId = 2; }