Latent topic model for audio retrieval
A topic model named Gaussian-LDA is introduced for audio retrieval, which integrates topic modeling and clustering in a framework. The variational inference method is adopted to train the parameters of Gaussian-LDA. It is beneficial to model audio data using latent topic model in the task of audio retrieval. The Gaussian-LDA demonstrates better performance than LDA and other compared methods.
topic model audio retrieval lda gaussian distribution