Automated segmentation, information extraction, summarization, and presentation of broadcast news
First Claim
1. A method for automatically processing a representation of a multimedia presentation having multiple information streams contained therein, the method comprising the steps of:
- (a) selecting at least one contiguous portion of the multimedia presentation as a story segment;
(b) extracting named entities from a text information stream corresponding to the story segment;
(c) using extracted named entities as search criteria to select from among a plurality of story segments;
(d) in response to a search query, presenting a list of named entities and their corresponding number of occurrences in story segments over a selected time period; and
(e) extracting story summary data using the named entities as a basis, wherein the step of extracting story summary data additionally comprises the steps of;
(i) determining a frequency of occurrence for the named entities per sentence in a story segment; and
(ii) selecting a sentence with a greatest named entity frequency of occurrence as a topic sentence.
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Abstract
A technique for automated analysis of multimedia, such as, for example, a news broadcast. A Broadcast News Editor and Broadcast News Navigator system analyze, select, condense, and then present news summaries. The system enables not only viewing a hierarchical table of contents of the news, but also summaries tailored to individual needs. This is accomplished through story segmentation and proper name extraction which enables the use of common information retrieval methodologies, such as Web browsers. Robust segmentation processing is provided using multistream analysis on imagery, audio, and closed captioned stream cue events.
388 Citations
25 Claims
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1. A method for automatically processing a representation of a multimedia presentation having multiple information streams contained therein, the method comprising the steps of:
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(a) selecting at least one contiguous portion of the multimedia presentation as a story segment; (b) extracting named entities from a text information stream corresponding to the story segment; (c) using extracted named entities as search criteria to select from among a plurality of story segments; (d) in response to a search query, presenting a list of named entities and their corresponding number of occurrences in story segments over a selected time period; and (e) extracting story summary data using the named entities as a basis, wherein the step of extracting story summary data additionally comprises the steps of; (i) determining a frequency of occurrence for the named entities per sentence in a story segment; and (ii) selecting a sentence with a greatest named entity frequency of occurrence as a topic sentence. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method for automatically processing a representation of a multimedia presentation having multiple information streams contained therein, the method comprising the steps of:
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(a) selecting at least one contiguous portion of the multimedia presentation as a story segment; (b) extracting named entities from a text information stream corresponding to the story segment; (c) using extracted named entities as search criteria to select from among a plurality of story segments; (d) in response to a search query, presenting named entities and their corresponding number of occurrences in story segments over a selected time period, the presenting of named entities in a form of a graph of a view of named entities and their corresponding frequencies of occurrences in story segments over a selected time period in response to a selection of a point on the graph of name entities, presenting the user with an overview of story segments containing the selected named entity. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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Specification