Identifying extra material in companion content

摘要

Systems and methods are disclosed which facilitate identifying extra substantive material within a content item not included within corresponding companion content items. For example, extra substantive material may include commentary, interviews, or improvisation included within an audio book and not included within a corresponding electronic book. Specifically, an electronic marketplace is disclosed that may analyze two companion content items to determine similarities and differences between the content items. Thereafter, portions that differ between the content items may be further analyzed to determine whether these portions include extra substantive material. Also disclosed is an electronic marketplace for providing information regarding content items, including the existence of extra substantive material within a content item. In some instances, the electronic marketplace may be configured to provide samples of extra content within a content item to a user.

主权项

1. A system for providing information regarding extra material within a content item, the system comprising:
an electronic data store configured to store an electronic book and an audio book that is at least a partial audio representation of the electronic book; and a computing device in communication with the electronic data store, the computing device configured to at least:
generate alignment information mapping regions of the electronic book to corresponding regions of the audio book,based at least in part on the alignment information, identify a region within the audio book that does not correspond to a region within the electronic book;obtain, from a human interaction task service, verification that the region identified within the audio book contains extra material, wherein the extra material is absent from the electronic book and contributes to the substance of the audio book; andcause transmission of a portion of the extra material to a user computing device as a sample of the audio book.