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音乐模型训练
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=== 数据增强 (Data Augmentation) === 对于歌词文本数据,数据增强可以在一定程度上缓解语料不足的问题。常见的NLP数据增强技术有: * '''同义词替换''':用近义词替换歌词中的某些词语,以生成语义相似的新句子。 * '''随机插入/删除''':随机地在句子中插入额外的词,或删除一些不影响整体意思的词。 * '''随机交换''':随机交换句子中的两个词的位置。 * '''回译 (Back-translation)''':将歌词翻译成另一种语言,再翻译回来,获得语义等价的变体。 * '''简易数据增强 (Easy Data Augmentation, EDA)''':EDA方法综合运用了上述几种操作来扩充数据。例如,对每一句歌词应用一定概率的同义词替换、插入、交换或删除。实验证明这些简单操作在小数据集上可以提高模型的鲁棒性。 需要注意,过度的数据增强可能改变歌词的风格或节奏,应仔细评估生成的伪样本质量。对于歌词这种对韵律和语义要求很高的文本,增强需更谨慎,比如同义词必须不破坏韵脚或节奏。'''经验建议''':优先增强那些通用性强的句子,对标志性强的歌词(专有名词、特殊拼写等)尽量保留原样。
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