Generating lyrics and poems is one of the essential downstream tasks in the
Natural Language Processing (NLP) field. Current methods have performed well in
some lyrics generation scenarios but need further improvements in tasks
requiring fine control. We propose a novel method for generating ancient
Chinese lyrics (Song Ci), a type of ancient lyrics that involves precise
control of song structure. The system is equipped with a phrase retriever and a
phrase connector. Based on an input prompt, the phrase retriever picks phrases
from a database to construct a phrase pool. The phrase connector then selects a
series of phrases from the phrase pool that minimizes a multi-term loss
function that considers rhyme, song structure, and fluency. Experimental
results show that our method can generate high-quality ancient Chinese lyrics
while performing well on topic and song structure control. We also expect our
approach to be generalized to other lyrics-generating tasks.

提出了一种新方法用于生成中国古代词，该方法结合了短语检索和短语拼接，通过多项损失函数优化实现了对韵律，歌曲结构和流畅性的精确控制。实验结果表明，该方法可以高质量地生成中国古代词，而且在主题和歌曲结构控制方面表现出色。