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https://issues.apache.org/jira/browse/MADLIB-1485?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Frank McQuillan updated MADLIB-1485:
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Priority: Minor (was: Major)
> DL: Unhelpful error message when loss/accuracy does not exist
> -------------------------------------------------------------
>
> Key: MADLIB-1485
> URL: https://issues.apache.org/jira/browse/MADLIB-1485
> Project: Apache MADlib
> Issue Type: Bug
> Components: Deep Learning
> Reporter: Frank McQuillan
> Priority: Minor
> Fix For: v1.19.0
>
>
> We throw an unhelpful error message when either the loss or the metrics
> argument is invalid. We should check if this happens for any other argument
> {code}
> SELECT madlib.madlib_keras_fit('mnist_train_batched', 'mnist_lstm_model',
> 'model_arch_mnist_lstm', 1,
> $$ optimizer=SGD(lr=0.01, decay=1e-6, nesterov=True), loss='does_not_exist',
> metrics=['accuracy']$$::text,
> $$ batch_size=25, epochs=1, verbose=0 $$::text, 5, TRUE, NULL, NULL);
> ERROR: plpy.Error: Object table not specified for function
> ['does_not_exist'] in compile_params (plpy_elog.c:121)
> {code}
> {code}
> SELECT madlib.madlib_keras_fit('mnist_train_batched', 'mnist_lstm_model',
> 'model_arch_mnist_lstm', 1,
> $$ optimizer=SGD(lr=0.01, decay=1e-6, nesterov=True),
> loss='categorical_crossentropy', metrics=['foobar']$$::text,
> $$ batch_size=25, epochs=1, verbose=0 $$::text, 5, TRUE, NULL, NULL);
> ERROR: plpy.Error: Object table not specified for function ['foobar'] in
> compile_params (plpy_elog.c:121)
> {code}
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