paddlenlp.taskflow.pos_tagging 源代码

# coding:utf-8
# Copyright (c) 2021  PaddlePaddle Authors. All Rights Reserved.
# Licensed under the Apache License, Version 2.0 (the "License"
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# See the License for the specific language governing permissions and
# limitations under the License.

import glob
import json
import math
import os
import copy
import itertools

import numpy as np
from .utils import download_file
from .lexical_analysis import load_vocab, LacTask

usage = r"""
           from paddlenlp import Taskflow 

           pos = Taskflow("pos_tagging")
           [('第十四届', 'm'), ('全运会', 'nz'), ('在', 'p'), ('西安', 'LOC'), ('举办', 'v')]

           pos(["第十四届全运会在西安举办", "三亚是一个美丽的城市"])
           [[('第十四届', 'm'), ('全运会', 'nz'), ('在', 'p'), ('西安', 'LOC'), ('举办', 'v')], [('三亚', 'LOC'), ('是', 'v'), ('一个', 'm'), ('美丽', 'a'), ('的', 'u'), ('城市', 'n')]]

[文档]class POSTaggingTask(LacTask): """ Part-of-speech tagging task for the raw text. Args: task(string): The name of task. model(string): The model name in the task. kwargs (dict, optional): Additional keyword arguments passed along to the specific task. """ def __init__(self, task, model, **kwargs): super().__init__(task=task, model=model, **kwargs) def _postprocess(self, inputs): """ The model output is the tag ids, this function will convert the model output to raw text. """ batch_out = [] lengths = inputs['lens'] preds = inputs['result'] sents = inputs['text'] final_results = [] for sent_index in range(len(lengths)): single_result = {} tags = [ self._id2tag_dict[str(index)] for index in preds[sent_index][:lengths[sent_index]] ] sent = sents[sent_index] if self._custom: self._custom.parse_customization(sent, tags) sent_out = [] tags_out = [] parital_word = "" for ind, tag in enumerate(tags): if parital_word == "": parital_word = sent[ind] tags_out.append(tag.split('-')[0]) continue if tag.endswith("-B") or (tag == "O" and tags[ind - 1] != "O"): sent_out.append(parital_word) tags_out.append(tag.split('-')[0]) parital_word = sent[ind] continue parital_word += sent[ind] if len(sent_out) < len(tags_out): sent_out.append(parital_word) result = list(zip(sent_out, tags_out)) final_results.append(result) final_results = self._auto_joiner(final_results, self.input_mapping) final_results = final_results if len( final_results) > 1 else final_results[0] return final_results