26 lines
783 B
Markdown
26 lines
783 B
Markdown
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---
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title: Deeplearning4j Listeners
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short_title: Listeners
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description: Adding hooks and listeners on DL4J models.
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category: Models
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weight: 5
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---
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## What are listeners?
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Listeners allow users to "hook" into certain events in Eclipse Deeplearning4j. This allows you to collect or print information useful for tasks like training. For example, a `ScoreIterationListener` allows you to print training scores from the output layer of a neural network.
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## Usage
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To add one or more listeners to a `MultiLayerNetwork` or `ComputationGraph`, use the `addListener` method:
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```java
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MultiLayerNetwork model = new MultiLayerNetwork(conf);
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model.init();
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//print the score with every 1 iteration
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model.setListeners(new ScoreIterationListener(1));
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```
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## Available listeners
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{{autogenerated}}
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