arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2203.13645cs.SDcs.CLeess.AS
收藏

语境中的音频文本检索

Audio-text Retrieval in Context

Shanghai Jiao Tong University(上海交通大学)

Siyu Lou, Xuenan Xu, Mengyue Wu, Kai Yu

摘要:

基于自然语言描述的音频文本检索是一项具有挑战性的任务。它涉及在不充分的数据条件下学习长序列之间的跨模态比对。在这项工作中,我们研究了几个音频功能,以及更好的音频文本对齐的序列聚合方法。此外,通过定性分析,我们观察到,语义映射是更重要的上下文检索比时间关系。使用预先训练的音频特征和基于聚类的聚合方法,我们建立了我们的上下文音频文本检索系统。具体来说,我们利用在大型声音事件数据集和NetRVLAD池上预训练的PANN特征,NetRVLAD池直接与平均描述符一起工作。在AudioCaps和CLOTHO数据集上进行了实验,并将结果与以前的最先进的系统进行了比较。与我们提出的系统,一个显着的改善已经取得了双向音频文本检索,所有指标,包括召回,中位数和平均排名。

英文摘要:

Audio-text retrieval based on natural language descriptions is a challenging task. It involves learning cross-modality alignments between long sequences under inadequate data conditions. In this work, we investigate several audio features as well as sequence aggregation methods for better audio-text alignment. Moreover, through a qualitative analysis we observe that semantic mapping is more important than temporal relations in contextual retrieval. Using pre-trained audio features and a descriptor-based aggregation method, we build our contextual audio-text retrieval system. Specifically, we utilize PANNs features pre-trained on a large sound event dataset and NetRVLAD pooling, which directly works with averaged descriptors. Experiments are conducted on the AudioCaps and CLOTHO datasets, and results are compared with the previous state-of-the-art system. With our proposed system, a significant improvement has been achieved on bidirectional audio-text retrieval, on all metrics including recall, median and mean rank.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑