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OnlineLogisticClassifier

oxirs_stream::ml::classification

Struct OnlineLogisticClassifier 

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pub struct OnlineLogisticClassifier { /* private fields */ }
Expand description

Multinomial logistic regression trained via online SGD.

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impl OnlineLogisticClassifier

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pub fn new(config: LogisticConfig) -> ClassificationResult<Self>

Build from config.

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pub fn last_loss(&self) -> f64

Last per-sample cross-entropy.

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impl Debug for OnlineLogisticClassifier

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl StreamClassifier for OnlineLogisticClassifier

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fn n_features(&self) -> usize

Number of input features.
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fn n_classes(&self) -> usize

Number of classes.
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fn n_observed(&self) -> u64

Number of (features, label) samples observed so far.
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fn observe( &self, features: &Array1<f64>, label: usize, ) -> ClassificationResult<()>

Update the model with a single labelled observation.
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fn predict( &self, features: &Array1<f64>, ) -> ClassificationResult<ClassPrediction>

Produce a class prediction.

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