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#: ../source/paddlenlp.metrics.perplexity.rst:2
msgid "perplexity"
msgstr ""

#: of paddlenlp.metrics.perplexity.Perplexity:1
msgid "基类：:class:`paddle.metric.metrics.Metric`"
msgstr ""

#: of paddlenlp.metrics.perplexity.Perplexity:1
msgid ""
"Perplexity is a metric used to judge how good a language model is. We can"
" define perplexity as the inverse probability of the test set, normalised"
" by the number of the words in the test set. Perplexity is calculated "
"using cross entropy. It supports both padding data and no padding data."
msgstr ""

#: of paddlenlp.metrics.perplexity.Perplexity:7
msgid ""
"If data is not padded, users should provide `seq_len` for `Metric` "
"initialization. If data is padded, your label should contain `seq_mask`, "
"which indicates the actual length of samples."
msgstr ""

#: of paddlenlp.metrics.perplexity.Perplexity:11
msgid ""
"This Perplexity requires that the output of your network is prediction, "
"label and sequence length (optional). If the Perplexity here doesn't meet"
" your needs, you could override the `compute` or `update` method for "
"calculating Perplexity."
msgstr ""

#: of paddlenlp.metrics.perplexity.Perplexity
#: paddlenlp.metrics.perplexity.Perplexity.compute
#: paddlenlp.metrics.perplexity.Perplexity.update
msgid "参数"
msgstr ""

#: of paddlenlp.metrics.perplexity.Perplexity:16
msgid ""
"Sequence length of each sample, it must be provided while data is not "
"padded. Defaults to 20."
msgstr ""

#: of paddlenlp.metrics.perplexity.Perplexity:19
msgid "Name of `Metric` instance. Defaults to 'Perplexity'."
msgstr ""

#: of paddlenlp.metrics.perplexity.Perplexity:23
msgid "示例"
msgstr ""

#: of paddlenlp.metrics.perplexity.Perplexity.compute:1
msgid "Computes cross entropy loss."
msgstr ""

#: of paddlenlp.metrics.perplexity.Perplexity.compute:3
msgid ""
"Predictor tensor, and its dtype is float32 or float64, and has a shape of"
" [batch_size, sequence_length, vocab_size]."
msgstr ""

#: of paddlenlp.metrics.perplexity.Perplexity.compute:6
msgid ""
"Label tensor, and its dtype is int64, and has a shape of [batch_size, "
"sequence_length, 1] or [batch_size, sequence_length]."
msgstr ""

#: of paddlenlp.metrics.perplexity.Perplexity.compute:9
msgid ""
"Sequence mask tensor, and its type could be float32, float64, int32 or "
"int64, and has a shape of [batch_size, sequence_length]. It's used to "
"calculate loss. Defaults to None."
msgstr ""

#: of paddlenlp.metrics.perplexity.Perplexity.accumulate
#: paddlenlp.metrics.perplexity.Perplexity.compute
#: paddlenlp.metrics.perplexity.Perplexity.name
msgid "返回"
msgstr ""

#: of paddlenlp.metrics.perplexity.Perplexity.compute:14
msgid ""
"Returns tuple (`ce, word_num`) if `seq_mask` is not None. Otherwise, "
"returns tensor `ce`. `ce` it the cross entropy loss, its shape is "
"[batch_size, sequence_length] and its data type should be float32."
msgstr ""

#: of paddlenlp.metrics.perplexity.Perplexity.accumulate
#: paddlenlp.metrics.perplexity.Perplexity.compute
#: paddlenlp.metrics.perplexity.Perplexity.name
msgid "返回类型"
msgstr ""

#: of paddlenlp.metrics.perplexity.Perplexity.update:1
msgid "Updates metric states."
msgstr ""

#: of paddlenlp.metrics.perplexity.Perplexity.update:3
msgid ""
"Cross entropy loss, it's calculated by `compute` and converted to "
"`numpy.ndarray`."
msgstr ""

#: of paddlenlp.metrics.perplexity.Perplexity.update:6
msgid ""
"The number of words of sequence, it's calculated by `compute` and "
"converted to `numpy.ndarray`. Defaults to None."
msgstr ""

#: of paddlenlp.metrics.perplexity.Perplexity.reset:1
msgid "Resets all metric states."
msgstr ""

#: of paddlenlp.metrics.perplexity.Perplexity.accumulate:1
msgid "Calculates and returns the value of perplexity."
msgstr ""

#: of paddlenlp.metrics.perplexity.Perplexity.accumulate:3
msgid "Returns `perplexity`, the calculation results."
msgstr ""

#: of paddlenlp.metrics.perplexity.Perplexity.name:1
msgid "Returns name of the metric instance."
msgstr ""

#: of paddlenlp.metrics.perplexity.Perplexity.name:3
msgid "The name of the metric instance."
msgstr ""