Hierarchical playlist generator

Details Hierarchical playlist generator Hierarchical playlist generator

2005-01-17

2010-11-23

Wu, Yicun (Department: 2169)

Data processing: database and file management or data structures

Database schema or data structure

Object-oriented database structure

C707S705000, C707S706000, C707S707000, C707S709000, C707S710000, C707S736000, C707S737000, C707S754000

Reexamination Certificate

active

07840620

ABSTRACT:
A playlist generator implements a net-based playlist generation process that comprises a multi-stage, hierarchical process. At a highest hierarchical level, the playlist generator applies parameters corresponding to a user's “general” preferences, wherein the parameters are relatively constant. At a lower level of the hierarchy, the playlist generator applies parameters corresponding to the user's “specific” preferences, wherein the parameters are dynamic time-dependent or event-dependent. The playlist generator uses the high-level parameters to generate a subset of material from a global collection of material, and applies the lower-level preferences to this subset of material in response to a change in the user's immediate preferences.

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J. Aucouturier et al, Scaling Up Music Playlist Generation, Proceedings of 2002 IEEE International Conference on Multimedia and Expo, ICME, Lausanne, Switzerland, vol. 1, Aug. 26, 2002, pp. 105-108.

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