PairwiseLoss¶
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class
ampligraph.latent_features.
PairwiseLoss
(eta, hyperparam_dict={'margin': 1}, verbose=False)¶ Pairwise, max-margin loss.
Introduced in [BUGD+13].\[\mathcal{L}(\Theta) = \sum_{t^+ \in \mathcal{G}}\sum_{t^- \in \mathcal{C}}max(0, [\gamma + f_{model}(t^-;\Theta) - f_{model}(t^+;\Theta)])\]where \(\gamma\) is the margin, \(\mathcal{G}\) is the set of positives, \(\mathcal{C}\) is the set of corruptions, \(f_{model}(t;\Theta)\) is the model-specific scoring function.
Methods
__init__
(eta[, hyperparam_dict, verbose])Initialize Loss. -
__init__
(eta, hyperparam_dict={'margin': 1}, verbose=False)¶ Initialize Loss.
Parameters: - eta (int) – number of negatives
- hyperparam_dict (dict) –
dictionary of hyperparams.
- margin: float. Margin to be used in pairwise loss computation (default:1)
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