Ruifeng Zheng created SPARK-61077:
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             Summary: Support native LinearSVC training and prediction in the 
Rust client
                 Key: SPARK-61077
                 URL: https://issues.apache.org/jira/browse/SPARK-61077
             Project: Spark
          Issue Type: New Feature
          Components: Connect
    Affects Versions: connect-rust-4.3.0
            Reporter: Ruifeng Zheng


Add a native LinearSVC estimator and fitted model using the Spark Connect ML 
Fit command and cached model object reference. Expose all 13 constructor 
parameter setters in Rust and the Python binding. Validate actual binary 
predictions, reversed-label fits, sample weights, threshold overrides, invalid 
training data and session isolation against Spark 4.3.0 and official PySpark.



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