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API的预置模型介绍

以下是Pipelines的主要API的模型介绍，有其他定制化的需求的用户可提issue。

DensePassageRetriever

除了DensePassageRetriever的默认模型外，还可以选择下面的模型试试效果：

模型 语言 模型详细信息
rocketqa-zh-base-query-encoder Chinese 12-layer, 768-hidden, 12-heads, 118M parameters. Trained on DuReader retrieval text.
rocketqa-zh-medium-query-encoder Chinese 6-layer, 768-hidden, 12-heads, 75M parameters. Trained on DuReader retrieval text.
rocketqa-zh-mini-query-encoder Chinese 6-layer, 384-hidden, 12-heads, 27M parameters. Trained on DuReader retrieval text.
rocketqa-zh-micro-query-encoder Chinese 4-layer, 384-hidden, 12-heads, 23M parameters. Trained on DuReader retrieval text.
rocketqa-zh-nano-query-encoder Chinese 4-layer, 312-hidden, 12-heads, 18M parameters. Trained on DuReader retrieval text.
rocketqav2-en-marco-query-encoder English 12-layer, 768-hidden, 12-heads, 118M parameters. Trained on MSMARCO.
ernie-search-base-dual-encoder-marco-en English 12-layer, 768-hidden, 12-heads, 118M parameters. Trained on MSMARCO.

ErnieRanker

类似地ErnieRanker可以选择下面的模型试试效果：

模型 语言 模型详细信息
rocketqa-base-cross-encoder Chinese 12-layer, 768-hidden, 12-heads, 118M parameters. Trained on DuReader retrieval text.
rocketqa-medium-cross-encoder Chinese 6-layer, 768-hidden, 12-heads, 75M parameters. Trained on DuReader retrieval text.
rocketqa-mini-cross-encoder Chinese 6-layer, 384-hidden, 12-heads, 27M parameters. Trained on DuReader retrieval text.
rocketqa-micro-cross-encoder Chinese 4-layer, 384-hidden, 12-heads, 23M parameters. Trained on DuReader retrieval text.
rocketqa-nano-cross-encoder Chinese 4-layer, 312-hidden, 12-heads, 18M parameters. Trained on DuReader retrieval text.
rocketqav2-en-marco-cross-encoder English 12-layer, 768-hidden, 12-heads, 118M parameters. Trained on Trained on MSMARCO.
ernie-search-large-cross-encoder-marco-en English 24-layer, 768-hidden, 12-heads, 118M parameters. Trained on Trained on MSMARCO.

ErnieReader

ErnieReader目前提供了一个预置的模型：

模型 语言 模型详细信息
ernie-gram-zh-finetuned-dureader-robust Chinese 12-layer, 768-hidden, 12-heads, 118M parameters. Trained on DuReader Robust Text.