Fan Hong created FLINK-30730: -------------------------------- Summary: StringIndexer cannot handle null values correctly when training Key: FLINK-30730 URL: https://issues.apache.org/jira/browse/FLINK-30730 Project: Flink Issue Type: Bug Components: Library / Machine Learning Affects Versions: ml-2.1.0 Reporter: Fan Hong
When training data contains null values, StringIndexer throws a exception. The reason is this method [1]: null values are neither String type or Number type. [1] https://github.com/apache/flink-ml/blob/966cedd7bbab4e12d8d8b37dbd582146714e68a6/flink-ml-lib/src/main/java/org/apache/flink/ml/feature/stringindexer/StringIndexer.java#L164 -- This message was sent by Atlassian Jira (v8.20.10#820010)