Method and apparatus for active annotation of multimedia content
First Claim
1. Method for generating persistent annotations of multimedia content, comprising one or more repetitions of the following steps:
- actively selecting examples of multimedia content to be annotated by a user;
accepting input annotations from said user for said selected examples;
propagating said input annotations to other instances of multimedia content; and
storing said input annotations and said propagated annotations.
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Abstract
Semantic indexing and retrieval of multimedia content requires that the content is sufficiently annotated. However, the great volumes of multimedia data and diversity of labels make annotation a difficult and costly process. Disclosed is an annotation framework in which supervised training with partially labeled data is facilitated using active learning. The system trains a classifier with a small set of labeled data and subsequently updates the classifier by selecting a subset of the available data-set according to optimization criteria. The process results in propagation of labels to unlabeled data and greatly facilitates the user in annotating large amounts of multimedia content.
231 Citations
22 Claims
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1. Method for generating persistent annotations of multimedia content, comprising one or more repetitions of the following steps:
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actively selecting examples of multimedia content to be annotated by a user;
accepting input annotations from said user for said selected examples;
propagating said input annotations to other instances of multimedia content; and
storing said input annotations and said propagated annotations. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. System for generating persistent annotations of multimedia content, comprising:
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means for actively selecting examples of multimedia content to be annotated by a user;
means for accepting input annotations from said user for said selected examples;
means for propagating said input annotations to other instances of multimedia content; and
means for storing said input annotations and said propagated annotations. - View Dependent Claims (17, 18, 19, 20, 21)
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22. A computer program product in a computer readable medium for generating persistent annotations of multimedia content, the computer program product comprising instructions for performing one or more repetitions of the following steps:
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actively selecting of examples of multimedia content to be annotated by a user;
accepting input annotations from said user for said selected examples;
propagating said input annotations to other instances of multimedia content; and
storing said input annotations and said propagated annotations.
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Specification