v0.5.9
修复了记忆刷屏 加入了又新又好错别字生成器 增加了记忆过滤
This commit is contained in:
827
src/test/typo.py
827
src/test/typo.py
@@ -1,455 +1,376 @@
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"""
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错别字生成器 - 流程说明
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整体替换逻辑:
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1. 数据准备
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- 加载字频词典:使用jieba词典计算汉字使用频率
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- 创建拼音映射:建立拼音到汉字的映射关系
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- 加载词频信息:从jieba词典获取词语使用频率
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2. 分词处理
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- 使用jieba将输入句子分词
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- 区分单字词和多字词
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- 保留标点符号和空格
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3. 词语级别替换(针对多字词)
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- 触发条件:词长>1 且 随机概率<0.3
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- 替换流程:
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a. 获取词语拼音
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b. 生成所有可能的同音字组合
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c. 过滤条件:
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- 必须是jieba词典中的有效词
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- 词频必须达到原词频的10%以上
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- 综合评分(词频70%+字频30%)必须达到阈值
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d. 按综合评分排序,选择最合适的替换词
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4. 字级别替换(针对单字词或未进行整词替换的多字词)
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- 单字替换概率:0.3
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- 多字词中的单字替换概率:0.3 * (0.7 ^ (词长-1))
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- 替换流程:
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a. 获取字的拼音
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b. 声调错误处理(20%概率)
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c. 获取同音字列表
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d. 过滤条件:
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- 字频必须达到最小阈值
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- 频率差异不能过大(指数衰减计算)
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e. 按频率排序选择替换字
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5. 频率控制机制
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- 字频控制:使用归一化的字频(0-1000范围)
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- 词频控制:使用jieba词典中的词频
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- 频率差异计算:使用指数衰减函数
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- 最小频率阈值:确保替换字/词不会太生僻
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6. 输出信息
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- 原文和错字版本的对照
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- 每个替换的详细信息(原字/词、替换后字/词、拼音、频率)
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- 替换类型说明(整词替换/声调错误/同音字替换)
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- 词语分析和完整拼音
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注意事项:
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1. 所有替换都必须使用有意义的词语
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2. 替换词的使用频率不能过低
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3. 多字词优先考虑整词替换
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4. 考虑声调变化的情况
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5. 保持标点符号和空格不变
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错别字生成器 - 基于拼音和字频的中文错别字生成工具
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"""
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from pypinyin import pinyin, Style
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from collections import defaultdict
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import json
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import os
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import unicodedata
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import jieba
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import jieba.posseg as pseg
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from pathlib import Path
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import random
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import math
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import time
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def load_or_create_char_frequency():
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"""
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加载或创建汉字频率字典
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"""
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cache_file = Path("char_frequency.json")
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# 如果缓存文件存在,直接加载
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if cache_file.exists():
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with open(cache_file, 'r', encoding='utf-8') as f:
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return json.load(f)
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# 使用内置的词频文件
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char_freq = defaultdict(int)
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dict_path = os.path.join(os.path.dirname(jieba.__file__), 'dict.txt')
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# 读取jieba的词典文件
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with open(dict_path, 'r', encoding='utf-8') as f:
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for line in f:
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word, freq = line.strip().split()[:2]
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# 对词中的每个字进行频率累加
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for char in word:
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if is_chinese_char(char):
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char_freq[char] += int(freq)
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# 归一化频率值
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max_freq = max(char_freq.values())
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normalized_freq = {char: freq/max_freq * 1000 for char, freq in char_freq.items()}
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# 保存到缓存文件
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with open(cache_file, 'w', encoding='utf-8') as f:
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json.dump(normalized_freq, f, ensure_ascii=False, indent=2)
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return normalized_freq
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# 创建拼音到汉字的映射字典
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def create_pinyin_dict():
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"""
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创建拼音到汉字的映射字典
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"""
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# 常用汉字范围
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chars = [chr(i) for i in range(0x4e00, 0x9fff)]
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pinyin_dict = defaultdict(list)
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# 为每个汉字建立拼音映射
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for char in chars:
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try:
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py = pinyin(char, style=Style.TONE3)[0][0]
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pinyin_dict[py].append(char)
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except Exception:
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continue
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return pinyin_dict
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def is_chinese_char(char):
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"""
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判断是否为汉字
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"""
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try:
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return '\u4e00' <= char <= '\u9fff'
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except:
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return False
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def get_pinyin(sentence):
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"""
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将中文句子拆分成单个汉字并获取其拼音
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:param sentence: 输入的中文句子
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:return: 每个汉字及其拼音的列表
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"""
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# 将句子拆分成单个字符
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characters = list(sentence)
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# 获取每个字符的拼音
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result = []
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for char in characters:
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# 跳过空格和非汉字字符
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if char.isspace() or not is_chinese_char(char):
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continue
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# 获取拼音(数字声调)
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py = pinyin(char, style=Style.TONE3)[0][0]
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result.append((char, py))
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return result
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def get_homophone(char, py, pinyin_dict, char_frequency, min_freq=5):
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"""
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获取同音字,按照使用频率排序
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"""
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homophones = pinyin_dict[py]
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# 移除原字并过滤低频字
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if char in homophones:
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homophones.remove(char)
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# 过滤掉低频字
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homophones = [h for h in homophones if char_frequency.get(h, 0) >= min_freq]
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# 按照字频排序
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sorted_homophones = sorted(homophones,
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key=lambda x: char_frequency.get(x, 0),
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reverse=True)
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# 只返回前10个同音字,避免输出过多
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return sorted_homophones[:10]
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def get_similar_tone_pinyin(py):
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"""
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获取相似声调的拼音
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例如:'ni3' 可能返回 'ni2' 或 'ni4'
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处理特殊情况:
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1. 轻声(如 'de5' 或 'le')
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2. 非数字结尾的拼音
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"""
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# 检查拼音是否为空或无效
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if not py or len(py) < 1:
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return py
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class ChineseTypoGenerator:
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def __init__(self,
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error_rate=0.3,
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min_freq=5,
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tone_error_rate=0.2,
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word_replace_rate=0.3,
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max_freq_diff=200):
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"""
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初始化错别字生成器
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# 如果最后一个字符不是数字,说明可能是轻声或其他特殊情况
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if not py[-1].isdigit():
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# 为非数字结尾的拼音添加数字声调1
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return py + '1'
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base = py[:-1] # 去掉声调
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tone = int(py[-1]) # 获取声调
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# 处理轻声(通常用5表示)或无效声调
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if tone not in [1, 2, 3, 4]:
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return base + str(random.choice([1, 2, 3, 4]))
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# 正常处理声调
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possible_tones = [1, 2, 3, 4]
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possible_tones.remove(tone) # 移除原声调
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new_tone = random.choice(possible_tones) # 随机选择一个新声调
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return base + str(new_tone)
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def calculate_replacement_probability(orig_freq, target_freq, max_freq_diff=200):
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"""
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根据频率差计算替换概率
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频率差越大,概率越低
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:param orig_freq: 原字频率
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:param target_freq: 目标字频率
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:param max_freq_diff: 最大允许的频率差
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:return: 0-1之间的概率值
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"""
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if target_freq > orig_freq:
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return 1.0 # 如果替换字频率更高,保持原有概率
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freq_diff = orig_freq - target_freq
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if freq_diff > max_freq_diff:
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return 0.0 # 频率差太大,不替换
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# 使用指数衰减函数计算概率
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# 频率差为0时概率为1,频率差为max_freq_diff时概率接近0
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return math.exp(-3 * freq_diff / max_freq_diff)
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def get_similar_frequency_chars(char, py, pinyin_dict, char_frequency, num_candidates=5, min_freq=5, tone_error_rate=0.2):
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"""
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获取与给定字频率相近的同音字,可能包含声调错误
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"""
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homophones = []
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# 有20%的概率使用错误声调
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if random.random() < tone_error_rate:
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wrong_tone_py = get_similar_tone_pinyin(py)
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homophones.extend(pinyin_dict[wrong_tone_py])
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# 添加正确声调的同音字
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homophones.extend(pinyin_dict[py])
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if not homophones:
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return None
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参数:
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error_rate: 单字替换概率
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min_freq: 最小字频阈值
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tone_error_rate: 声调错误概率
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word_replace_rate: 整词替换概率
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max_freq_diff: 最大允许的频率差异
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"""
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self.error_rate = error_rate
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self.min_freq = min_freq
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self.tone_error_rate = tone_error_rate
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self.word_replace_rate = word_replace_rate
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self.max_freq_diff = max_freq_diff
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# 获取原字的频率
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orig_freq = char_frequency.get(char, 0)
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# 加载数据
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print("正在加载汉字数据库,请稍候...")
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self.pinyin_dict = self._create_pinyin_dict()
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self.char_frequency = self._load_or_create_char_frequency()
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# 计算所有同音字与原字的频率差,并过滤掉低频字
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freq_diff = [(h, char_frequency.get(h, 0))
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for h in homophones
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if h != char and char_frequency.get(h, 0) >= min_freq]
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if not freq_diff:
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return None
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# 计算每个候选字的替换概率
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candidates_with_prob = []
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for h, freq in freq_diff:
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prob = calculate_replacement_probability(orig_freq, freq)
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if prob > 0: # 只保留有效概率的候选字
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candidates_with_prob.append((h, prob))
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if not candidates_with_prob:
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return None
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# 根据概率排序
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candidates_with_prob.sort(key=lambda x: x[1], reverse=True)
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# 返回概率最高的几个字
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return [char for char, _ in candidates_with_prob[:num_candidates]]
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def get_word_pinyin(word):
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"""
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获取词语的拼音列表
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"""
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return [py[0] for py in pinyin(word, style=Style.TONE3)]
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def segment_sentence(sentence):
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"""
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使用jieba分词,返回词语列表
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"""
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return list(jieba.cut(sentence))
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def get_word_homophones(word, pinyin_dict, char_frequency, min_freq=5):
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"""
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获取整个词的同音词,只返回高频的有意义词语
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:param word: 输入词语
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:param pinyin_dict: 拼音字典
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:param char_frequency: 字频字典
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:param min_freq: 最小频率阈值
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:return: 同音词列表
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"""
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if len(word) == 1:
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return []
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def _load_or_create_char_frequency(self):
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"""
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加载或创建汉字频率字典
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"""
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cache_file = Path("char_frequency.json")
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# 获取词的拼音
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word_pinyin = get_word_pinyin(word)
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word_pinyin_str = ''.join(word_pinyin)
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# 创建词语频率字典
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word_freq = defaultdict(float)
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# 遍历所有可能的同音字组合
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candidates = []
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for py in word_pinyin:
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chars = pinyin_dict.get(py, [])
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if not chars:
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return []
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candidates.append(chars)
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# 生成所有可能的组合
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import itertools
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all_combinations = itertools.product(*candidates)
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# 获取jieba词典和词频信息
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dict_path = os.path.join(os.path.dirname(jieba.__file__), 'dict.txt')
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valid_words = {} # 改用字典存储词语及其频率
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with open(dict_path, 'r', encoding='utf-8') as f:
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for line in f:
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parts = line.strip().split()
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if len(parts) >= 2:
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word_text = parts[0]
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word_freq = float(parts[1]) # 获取词频
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valid_words[word_text] = word_freq
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# 获取原词的词频作为参考
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original_word_freq = valid_words.get(word, 0)
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min_word_freq = original_word_freq * 0.1 # 设置最小词频为原词频的10%
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# 过滤和计算频率
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homophones = []
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for combo in all_combinations:
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new_word = ''.join(combo)
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if new_word != word and new_word in valid_words:
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new_word_freq = valid_words[new_word]
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# 只保留词频达到阈值的词
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if new_word_freq >= min_word_freq:
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# 计算词的平均字频(考虑字频和词频)
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char_avg_freq = sum(char_frequency.get(c, 0) for c in new_word) / len(new_word)
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# 综合评分:结合词频和字频
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combined_score = (new_word_freq * 0.7 + char_avg_freq * 0.3)
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if combined_score >= min_freq:
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homophones.append((new_word, combined_score))
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# 按综合分数排序并限制返回数量
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sorted_homophones = sorted(homophones, key=lambda x: x[1], reverse=True)
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return [word for word, _ in sorted_homophones[:5]] # 限制返回前5个结果
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def create_typo_sentence(sentence, pinyin_dict, char_frequency, error_rate=0.5, min_freq=5, tone_error_rate=0.2, word_replace_rate=0.3):
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"""
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创建包含同音字错误的句子,支持词语级别和字级别的替换
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只使用高频的有意义词语进行替换
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"""
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result = []
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typo_info = []
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# 分词
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words = segment_sentence(sentence)
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for word in words:
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# 如果是标点符号或空格,直接添加
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if all(not is_chinese_char(c) for c in word):
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result.append(word)
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continue
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# 获取词语的拼音
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word_pinyin = get_word_pinyin(word)
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# 如果缓存文件存在,直接加载
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if cache_file.exists():
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with open(cache_file, 'r', encoding='utf-8') as f:
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return json.load(f)
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|
||||
# 尝试整词替换
|
||||
if len(word) > 1 and random.random() < word_replace_rate:
|
||||
word_homophones = get_word_homophones(word, pinyin_dict, char_frequency, min_freq)
|
||||
if word_homophones:
|
||||
typo_word = random.choice(word_homophones)
|
||||
# 计算词的平均频率
|
||||
orig_freq = sum(char_frequency.get(c, 0) for c in word) / len(word)
|
||||
typo_freq = sum(char_frequency.get(c, 0) for c in typo_word) / len(typo_word)
|
||||
|
||||
# 添加到结果中
|
||||
result.append(typo_word)
|
||||
typo_info.append((word, typo_word,
|
||||
' '.join(word_pinyin),
|
||||
' '.join(get_word_pinyin(typo_word)),
|
||||
orig_freq, typo_freq))
|
||||
# 使用内置的词频文件
|
||||
char_freq = defaultdict(int)
|
||||
dict_path = os.path.join(os.path.dirname(jieba.__file__), 'dict.txt')
|
||||
|
||||
# 读取jieba的词典文件
|
||||
with open(dict_path, 'r', encoding='utf-8') as f:
|
||||
for line in f:
|
||||
word, freq = line.strip().split()[:2]
|
||||
# 对词中的每个字进行频率累加
|
||||
for char in word:
|
||||
if self._is_chinese_char(char):
|
||||
char_freq[char] += int(freq)
|
||||
|
||||
# 归一化频率值
|
||||
max_freq = max(char_freq.values())
|
||||
normalized_freq = {char: freq/max_freq * 1000 for char, freq in char_freq.items()}
|
||||
|
||||
# 保存到缓存文件
|
||||
with open(cache_file, 'w', encoding='utf-8') as f:
|
||||
json.dump(normalized_freq, f, ensure_ascii=False, indent=2)
|
||||
|
||||
return normalized_freq
|
||||
|
||||
def _create_pinyin_dict(self):
|
||||
"""
|
||||
创建拼音到汉字的映射字典
|
||||
"""
|
||||
# 常用汉字范围
|
||||
chars = [chr(i) for i in range(0x4e00, 0x9fff)]
|
||||
pinyin_dict = defaultdict(list)
|
||||
|
||||
# 为每个汉字建立拼音映射
|
||||
for char in chars:
|
||||
try:
|
||||
py = pinyin(char, style=Style.TONE3)[0][0]
|
||||
pinyin_dict[py].append(char)
|
||||
except Exception:
|
||||
continue
|
||||
|
||||
# 如果不进行整词替换,则进行单字替换
|
||||
return pinyin_dict
|
||||
|
||||
def _is_chinese_char(self, char):
|
||||
"""
|
||||
判断是否为汉字
|
||||
"""
|
||||
try:
|
||||
return '\u4e00' <= char <= '\u9fff'
|
||||
except:
|
||||
return False
|
||||
|
||||
def _get_pinyin(self, sentence):
|
||||
"""
|
||||
将中文句子拆分成单个汉字并获取其拼音
|
||||
"""
|
||||
# 将句子拆分成单个字符
|
||||
characters = list(sentence)
|
||||
|
||||
# 获取每个字符的拼音
|
||||
result = []
|
||||
for char in characters:
|
||||
# 跳过空格和非汉字字符
|
||||
if char.isspace() or not self._is_chinese_char(char):
|
||||
continue
|
||||
# 获取拼音(数字声调)
|
||||
py = pinyin(char, style=Style.TONE3)[0][0]
|
||||
result.append((char, py))
|
||||
|
||||
return result
|
||||
|
||||
def _get_similar_tone_pinyin(self, py):
|
||||
"""
|
||||
获取相似声调的拼音
|
||||
"""
|
||||
# 检查拼音是否为空或无效
|
||||
if not py or len(py) < 1:
|
||||
return py
|
||||
|
||||
# 如果最后一个字符不是数字,说明可能是轻声或其他特殊情况
|
||||
if not py[-1].isdigit():
|
||||
# 为非数字结尾的拼音添加数字声调1
|
||||
return py + '1'
|
||||
|
||||
base = py[:-1] # 去掉声调
|
||||
tone = int(py[-1]) # 获取声调
|
||||
|
||||
# 处理轻声(通常用5表示)或无效声调
|
||||
if tone not in [1, 2, 3, 4]:
|
||||
return base + str(random.choice([1, 2, 3, 4]))
|
||||
|
||||
# 正常处理声调
|
||||
possible_tones = [1, 2, 3, 4]
|
||||
possible_tones.remove(tone) # 移除原声调
|
||||
new_tone = random.choice(possible_tones) # 随机选择一个新声调
|
||||
return base + str(new_tone)
|
||||
|
||||
def _calculate_replacement_probability(self, orig_freq, target_freq):
|
||||
"""
|
||||
根据频率差计算替换概率
|
||||
"""
|
||||
if target_freq > orig_freq:
|
||||
return 1.0 # 如果替换字频率更高,保持原有概率
|
||||
|
||||
freq_diff = orig_freq - target_freq
|
||||
if freq_diff > self.max_freq_diff:
|
||||
return 0.0 # 频率差太大,不替换
|
||||
|
||||
# 使用指数衰减函数计算概率
|
||||
# 频率差为0时概率为1,频率差为max_freq_diff时概率接近0
|
||||
return math.exp(-3 * freq_diff / self.max_freq_diff)
|
||||
|
||||
def _get_similar_frequency_chars(self, char, py, num_candidates=5):
|
||||
"""
|
||||
获取与给定字频率相近的同音字,可能包含声调错误
|
||||
"""
|
||||
homophones = []
|
||||
|
||||
# 有一定概率使用错误声调
|
||||
if random.random() < self.tone_error_rate:
|
||||
wrong_tone_py = self._get_similar_tone_pinyin(py)
|
||||
homophones.extend(self.pinyin_dict[wrong_tone_py])
|
||||
|
||||
# 添加正确声调的同音字
|
||||
homophones.extend(self.pinyin_dict[py])
|
||||
|
||||
if not homophones:
|
||||
return None
|
||||
|
||||
# 获取原字的频率
|
||||
orig_freq = self.char_frequency.get(char, 0)
|
||||
|
||||
# 计算所有同音字与原字的频率差,并过滤掉低频字
|
||||
freq_diff = [(h, self.char_frequency.get(h, 0))
|
||||
for h in homophones
|
||||
if h != char and self.char_frequency.get(h, 0) >= self.min_freq]
|
||||
|
||||
if not freq_diff:
|
||||
return None
|
||||
|
||||
# 计算每个候选字的替换概率
|
||||
candidates_with_prob = []
|
||||
for h, freq in freq_diff:
|
||||
prob = self._calculate_replacement_probability(orig_freq, freq)
|
||||
if prob > 0: # 只保留有效概率的候选字
|
||||
candidates_with_prob.append((h, prob))
|
||||
|
||||
if not candidates_with_prob:
|
||||
return None
|
||||
|
||||
# 根据概率排序
|
||||
candidates_with_prob.sort(key=lambda x: x[1], reverse=True)
|
||||
|
||||
# 返回概率最高的几个字
|
||||
return [char for char, _ in candidates_with_prob[:num_candidates]]
|
||||
|
||||
def _get_word_pinyin(self, word):
|
||||
"""
|
||||
获取词语的拼音列表
|
||||
"""
|
||||
return [py[0] for py in pinyin(word, style=Style.TONE3)]
|
||||
|
||||
def _segment_sentence(self, sentence):
|
||||
"""
|
||||
使用jieba分词,返回词语列表
|
||||
"""
|
||||
return list(jieba.cut(sentence))
|
||||
|
||||
def _get_word_homophones(self, word):
|
||||
"""
|
||||
获取整个词的同音词,只返回高频的有意义词语
|
||||
"""
|
||||
if len(word) == 1:
|
||||
char = word
|
||||
py = word_pinyin[0]
|
||||
if random.random() < error_rate:
|
||||
similar_chars = get_similar_frequency_chars(char, py, pinyin_dict, char_frequency,
|
||||
min_freq=min_freq, tone_error_rate=tone_error_rate)
|
||||
if similar_chars:
|
||||
typo_char = random.choice(similar_chars)
|
||||
typo_freq = char_frequency.get(typo_char, 0)
|
||||
orig_freq = char_frequency.get(char, 0)
|
||||
replace_prob = calculate_replacement_probability(orig_freq, typo_freq)
|
||||
if random.random() < replace_prob:
|
||||
result.append(typo_char)
|
||||
typo_py = pinyin(typo_char, style=Style.TONE3)[0][0]
|
||||
typo_info.append((char, typo_char, py, typo_py, orig_freq, typo_freq))
|
||||
continue
|
||||
result.append(char)
|
||||
else:
|
||||
# 处理多字词的单字替换
|
||||
word_result = []
|
||||
for i, (char, py) in enumerate(zip(word, word_pinyin)):
|
||||
# 词中的字替换概率降低
|
||||
word_error_rate = error_rate * (0.7 ** (len(word) - 1))
|
||||
return []
|
||||
|
||||
# 获取词的拼音
|
||||
word_pinyin = self._get_word_pinyin(word)
|
||||
|
||||
# 遍历所有可能的同音字组合
|
||||
candidates = []
|
||||
for py in word_pinyin:
|
||||
chars = self.pinyin_dict.get(py, [])
|
||||
if not chars:
|
||||
return []
|
||||
candidates.append(chars)
|
||||
|
||||
# 生成所有可能的组合
|
||||
import itertools
|
||||
all_combinations = itertools.product(*candidates)
|
||||
|
||||
# 获取jieba词典和词频信息
|
||||
dict_path = os.path.join(os.path.dirname(jieba.__file__), 'dict.txt')
|
||||
valid_words = {} # 改用字典存储词语及其频率
|
||||
with open(dict_path, 'r', encoding='utf-8') as f:
|
||||
for line in f:
|
||||
parts = line.strip().split()
|
||||
if len(parts) >= 2:
|
||||
word_text = parts[0]
|
||||
word_freq = float(parts[1]) # 获取词频
|
||||
valid_words[word_text] = word_freq
|
||||
|
||||
# 获取原词的词频作为参考
|
||||
original_word_freq = valid_words.get(word, 0)
|
||||
min_word_freq = original_word_freq * 0.1 # 设置最小词频为原词频的10%
|
||||
|
||||
# 过滤和计算频率
|
||||
homophones = []
|
||||
for combo in all_combinations:
|
||||
new_word = ''.join(combo)
|
||||
if new_word != word and new_word in valid_words:
|
||||
new_word_freq = valid_words[new_word]
|
||||
# 只保留词频达到阈值的词
|
||||
if new_word_freq >= min_word_freq:
|
||||
# 计算词的平均字频(考虑字频和词频)
|
||||
char_avg_freq = sum(self.char_frequency.get(c, 0) for c in new_word) / len(new_word)
|
||||
# 综合评分:结合词频和字频
|
||||
combined_score = (new_word_freq * 0.7 + char_avg_freq * 0.3)
|
||||
if combined_score >= self.min_freq:
|
||||
homophones.append((new_word, combined_score))
|
||||
|
||||
# 按综合分数排序并限制返回数量
|
||||
sorted_homophones = sorted(homophones, key=lambda x: x[1], reverse=True)
|
||||
return [word for word, _ in sorted_homophones[:5]] # 限制返回前5个结果
|
||||
|
||||
def create_typo_sentence(self, sentence):
|
||||
"""
|
||||
创建包含同音字错误的句子,支持词语级别和字级别的替换
|
||||
|
||||
参数:
|
||||
sentence: 输入的中文句子
|
||||
|
||||
返回:
|
||||
typo_sentence: 包含错别字的句子
|
||||
typo_info: 错别字信息列表
|
||||
"""
|
||||
result = []
|
||||
typo_info = []
|
||||
|
||||
# 分词
|
||||
words = self._segment_sentence(sentence)
|
||||
|
||||
for word in words:
|
||||
# 如果是标点符号或空格,直接添加
|
||||
if all(not self._is_chinese_char(c) for c in word):
|
||||
result.append(word)
|
||||
continue
|
||||
|
||||
if random.random() < word_error_rate:
|
||||
similar_chars = get_similar_frequency_chars(char, py, pinyin_dict, char_frequency,
|
||||
min_freq=min_freq, tone_error_rate=tone_error_rate)
|
||||
# 获取词语的拼音
|
||||
word_pinyin = self._get_word_pinyin(word)
|
||||
|
||||
# 尝试整词替换
|
||||
if len(word) > 1 and random.random() < self.word_replace_rate:
|
||||
word_homophones = self._get_word_homophones(word)
|
||||
if word_homophones:
|
||||
typo_word = random.choice(word_homophones)
|
||||
# 计算词的平均频率
|
||||
orig_freq = sum(self.char_frequency.get(c, 0) for c in word) / len(word)
|
||||
typo_freq = sum(self.char_frequency.get(c, 0) for c in typo_word) / len(typo_word)
|
||||
|
||||
# 添加到结果中
|
||||
result.append(typo_word)
|
||||
typo_info.append((word, typo_word,
|
||||
' '.join(word_pinyin),
|
||||
' '.join(self._get_word_pinyin(typo_word)),
|
||||
orig_freq, typo_freq))
|
||||
continue
|
||||
|
||||
# 如果不进行整词替换,则进行单字替换
|
||||
if len(word) == 1:
|
||||
char = word
|
||||
py = word_pinyin[0]
|
||||
if random.random() < self.error_rate:
|
||||
similar_chars = self._get_similar_frequency_chars(char, py)
|
||||
if similar_chars:
|
||||
typo_char = random.choice(similar_chars)
|
||||
typo_freq = char_frequency.get(typo_char, 0)
|
||||
orig_freq = char_frequency.get(char, 0)
|
||||
replace_prob = calculate_replacement_probability(orig_freq, typo_freq)
|
||||
typo_freq = self.char_frequency.get(typo_char, 0)
|
||||
orig_freq = self.char_frequency.get(char, 0)
|
||||
replace_prob = self._calculate_replacement_probability(orig_freq, typo_freq)
|
||||
if random.random() < replace_prob:
|
||||
word_result.append(typo_char)
|
||||
result.append(typo_char)
|
||||
typo_py = pinyin(typo_char, style=Style.TONE3)[0][0]
|
||||
typo_info.append((char, typo_char, py, typo_py, orig_freq, typo_freq))
|
||||
continue
|
||||
word_result.append(char)
|
||||
result.append(''.join(word_result))
|
||||
|
||||
return ''.join(result), typo_info
|
||||
result.append(char)
|
||||
else:
|
||||
# 处理多字词的单字替换
|
||||
word_result = []
|
||||
for i, (char, py) in enumerate(zip(word, word_pinyin)):
|
||||
# 词中的字替换概率降低
|
||||
word_error_rate = self.error_rate * (0.7 ** (len(word) - 1))
|
||||
|
||||
if random.random() < word_error_rate:
|
||||
similar_chars = self._get_similar_frequency_chars(char, py)
|
||||
if similar_chars:
|
||||
typo_char = random.choice(similar_chars)
|
||||
typo_freq = self.char_frequency.get(typo_char, 0)
|
||||
orig_freq = self.char_frequency.get(char, 0)
|
||||
replace_prob = self._calculate_replacement_probability(orig_freq, typo_freq)
|
||||
if random.random() < replace_prob:
|
||||
word_result.append(typo_char)
|
||||
typo_py = pinyin(typo_char, style=Style.TONE3)[0][0]
|
||||
typo_info.append((char, typo_char, py, typo_py, orig_freq, typo_freq))
|
||||
continue
|
||||
word_result.append(char)
|
||||
result.append(''.join(word_result))
|
||||
|
||||
return ''.join(result), typo_info
|
||||
|
||||
def format_frequency(freq):
|
||||
"""
|
||||
格式化频率显示
|
||||
"""
|
||||
return f"{freq:.2f}"
|
||||
|
||||
def main():
|
||||
# 记录开始时间
|
||||
start_time = time.time()
|
||||
|
||||
# 首先创建拼音字典和加载字频统计
|
||||
print("正在加载汉字数据库,请稍候...")
|
||||
pinyin_dict = create_pinyin_dict()
|
||||
char_frequency = load_or_create_char_frequency()
|
||||
|
||||
# 获取用户输入
|
||||
sentence = input("请输入中文句子:")
|
||||
|
||||
# 创建包含错别字的句子
|
||||
typo_sentence, typo_info = create_typo_sentence(sentence, pinyin_dict, char_frequency,
|
||||
error_rate=0.3, min_freq=5,
|
||||
tone_error_rate=0.2, word_replace_rate=0.3)
|
||||
|
||||
# 打印结果
|
||||
print("\n原句:", sentence)
|
||||
print("错字版:", typo_sentence)
|
||||
|
||||
if typo_info:
|
||||
print("\n错别字信息:")
|
||||
def format_typo_info(self, typo_info):
|
||||
"""
|
||||
格式化错别字信息
|
||||
|
||||
参数:
|
||||
typo_info: 错别字信息列表
|
||||
|
||||
返回:
|
||||
格式化后的错别字信息字符串
|
||||
"""
|
||||
if not typo_info:
|
||||
return "未生成错别字"
|
||||
|
||||
result = []
|
||||
for orig, typo, orig_py, typo_py, orig_freq, typo_freq in typo_info:
|
||||
# 判断是否为词语替换
|
||||
is_word = ' ' in orig_py
|
||||
@@ -459,25 +380,53 @@ def main():
|
||||
tone_error = orig_py[:-1] == typo_py[:-1] and orig_py[-1] != typo_py[-1]
|
||||
error_type = "声调错误" if tone_error else "同音字替换"
|
||||
|
||||
print(f"原文:{orig}({orig_py}) [频率:{format_frequency(orig_freq)}] -> "
|
||||
f"替换:{typo}({typo_py}) [频率:{format_frequency(typo_freq)}] [{error_type}]")
|
||||
result.append(f"原文:{orig}({orig_py}) [频率:{orig_freq:.2f}] -> "
|
||||
f"替换:{typo}({typo_py}) [频率:{typo_freq:.2f}] [{error_type}]")
|
||||
|
||||
return "\n".join(result)
|
||||
|
||||
# 获取拼音结果
|
||||
result = get_pinyin(sentence)
|
||||
def set_params(self, **kwargs):
|
||||
"""
|
||||
设置参数
|
||||
|
||||
可设置参数:
|
||||
error_rate: 单字替换概率
|
||||
min_freq: 最小字频阈值
|
||||
tone_error_rate: 声调错误概率
|
||||
word_replace_rate: 整词替换概率
|
||||
max_freq_diff: 最大允许的频率差异
|
||||
"""
|
||||
for key, value in kwargs.items():
|
||||
if hasattr(self, key):
|
||||
setattr(self, key, value)
|
||||
print(f"参数 {key} 已设置为 {value}")
|
||||
else:
|
||||
print(f"警告: 参数 {key} 不存在")
|
||||
|
||||
def main():
|
||||
# 创建错别字生成器实例
|
||||
typo_generator = ChineseTypoGenerator(
|
||||
error_rate=0.03,
|
||||
min_freq=7,
|
||||
tone_error_rate=0.02,
|
||||
word_replace_rate=0.3
|
||||
)
|
||||
|
||||
# 打印完整拼音
|
||||
print("\n完整拼音:")
|
||||
print(" ".join(py for _, py in result))
|
||||
# 获取用户输入
|
||||
sentence = input("请输入中文句子:")
|
||||
|
||||
# 打印词语分析
|
||||
print("\n词语分析:")
|
||||
words = segment_sentence(sentence)
|
||||
for word in words:
|
||||
if any(is_chinese_char(c) for c in word):
|
||||
word_pinyin = get_word_pinyin(word)
|
||||
print(f"词语:{word}")
|
||||
print(f"拼音:{' '.join(word_pinyin)}")
|
||||
print("---")
|
||||
# 创建包含错别字的句子
|
||||
start_time = time.time()
|
||||
typo_sentence, typo_info = typo_generator.create_typo_sentence(sentence)
|
||||
|
||||
# 打印结果
|
||||
print("\n原句:", sentence)
|
||||
print("错字版:", typo_sentence)
|
||||
|
||||
# 打印错别字信息
|
||||
if typo_info:
|
||||
print("\n错别字信息:")
|
||||
print(typo_generator.format_typo_info(typo_info))
|
||||
|
||||
# 计算并打印总耗时
|
||||
end_time = time.time()
|
||||
|
||||
Reference in New Issue
Block a user