avalanche.evaluation.metrics.StreamR2Forgetting

class avalanche.evaluation.metrics.StreamR2Forgetting[source]

The StreamR2Forgetting metric, describing the average evaluation R2 loss detected over all experiences observed during training.

This plugin metric, computed over all observed experiences during training, is the average over the difference between the R2 result obtained after first training on a experience and the R2 result obtained on the same experience at the end of successive experiences.

This metric is computed during the eval phase only.

__init__()[source]

Creates an instance of the StreamR2Forgetting metric.

Methods

__init__()

Creates an instance of the StreamR2Forgetting metric.

after_backward(strategy)

after_eval(strategy)

after_eval_dataset_adaptation(strategy)

after_eval_exp(strategy)

after_eval_forward(strategy)

after_eval_iteration(strategy)

after_forward(strategy)

after_train_dataset_adaptation(strategy)

after_training(strategy)

after_training_epoch(strategy)

after_training_exp(strategy)

after_training_iteration(strategy)

after_update(strategy)

before_backward(strategy)

before_eval(strategy)

before_eval_dataset_adaptation(strategy)

before_eval_exp(strategy)

before_eval_forward(strategy)

before_eval_iteration(strategy)

before_forward(strategy)

before_train_dataset_adaptation(strategy)

before_training(strategy)

before_training_epoch(strategy)

before_training_exp(strategy)

before_training_iteration(strategy)

before_update(strategy)

exp_result(k)

Result for experience defined by a key.

exp_update(k, v[, initial])

Update forgetting metric.

metric_result(strategy)

metric_update(strategy)

reset()

Resets the forgetting metrics.

reset_last()

Resets the last metric value.

result()

The average forgetting over all experience.

result_key(k)

Result for experience defined by a key.

update(k, v[, initial])

Update forgetting metric.

Attributes

stream_forgetting

The average forgetting over all experiences

forgetting

The general metric to compute forgetting

eval_exp_id

The current evaluation experience id

train_exp_id

The last encountered training experience id