Speaker indexing for retrieval of voicemail messages

This paper addresses the task of voicemail messages retrieval according to a target speaker defined by a given voicemail message. The core metric used for speaker modeling is GMM-based and the paper focuses on the sorting algorithms of the voicemail messages. Various algorithms are studied and compared. An algorithm that sorts messages according to their inclusion rank into a cluster built on the reference message is proposed. Experimentally, it proves to be far better than the classical ones.