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SmartNews : Semantic Searching of News Video. Stephen Lynn Brigham Young University CS 652. Background. Over 2000 News Stations in US 10 Broadcasts a Day About 15 Stories per Broadcast 150 Stories per day per Broadcaster Many redundant Over 300,000 Stories a Day Even more redundancy. - PowerPoint PPT Presentation
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SmartNews: Semantic Searching of News Video
SmartNews: Semantic Searching of News Video
Stephen LynnBrigham Young UniversityCS 652
SmartNews: Semantic Searching of News Video
Background Over 2000 News Stations in US 10 Broadcasts a Day About 15 Stories per Broadcast 150 Stories per day per Broadcaster
Many redundant
Over 300,000 Stories a DayEven more redundancy
SmartNews: Semantic Searching of News Video
Interactive News User in Control Only Watch Stories of Interest Dig in to Stories
Problem: How do I find background stories related to some current event?
SmartNews: Semantic Searching of News Video
SmartNews Semantically Enriched Search Interface
Extraction Ontology
Retrieve Past News StoriesRDF Repository
Sensitive to Inter-story Relationships Simple Search Mechanism
SmartNews: Semantic Searching of News Video
ExampleU.S. President Barack Obama visited Iraq Monday in
a stop that was overshadowed by the question of when U.S. troops should go home. Obama made his opposition to the U.S.-led invasion of Iraq five
years ago a centerpiece of his campaign and was in Baghdad to assess security in Iraq, where violence
has fallen to its lowest level since early 2004.
When has Barack Obama visited Iraq?
Which U.S. President’s have visited Iraq?
SmartNews: Semantic Searching of News Video
Adding News Stories Packages
Video/AudioRelated Video SegmentsClosed Captioning Text
Ontology RefinementEnter Objects of InterestGrowing Lexicons
SmartNews: Semantic Searching of News Video
Data Frames and Relationship Sets
“President Barack Obama visited Iraq”
<Person>\w+(visited|born in|lives in)\w+<Country>
SmartNews: Semantic Searching of News Video
Extraction Ontology
SmartNews: Semantic Searching of News Video
RDF Repository<rdf:RDF xmlns:sn="http://dithers.cs.byu.edu/owl/ontologies/SmartNews#">
<ann:CachedResource rdf:ID="Video_1"> <ann:ResourceID>NewsStory1</ann:ResourceID> <ann:CachedURI>http://path.to.news.story/story1.wmv</ann:CachedURI></ann:CachedResource>
<rdf:Thing rdf:ID="Person_1"/><rdf:Thing rdf:ID="Country_1"/>
<rdf:Description rdf:about="#Person_1"> <sn:Person-visited-Country rdf:resource="#Country_1"/> <sn:PersonValue>Barack Obama</sn:PersonValue> <ann:hasComponent rdf:resource="#PersonComponent_1"/></rdf:Description>
<rdf:Description rdf:about="#Country_1"> <sn:CountryValue>Iraq</sn:CountryValue> <ann:hasComponent rdf:resource="#CountryComponent_1"/></rdf:Description>
</rdf:RDF>
SmartNews: Semantic Searching of News Video
Querying Seed with Story of Interest Populated Search Form SPARQL
SELECT *WHERE { ?Resource sn:Person ?Person; sn:Country ?Country. ?Person sn:Person-visited-Country ?Country. FILTER regex(?Person, “Barack Obama”), regex(?Country, “Iraq”)}
SmartNews: Semantic Searching of News Video
Evaluation Query Story Repository 10 “Seed” Stories Quantitative
Expert Provide List of “Related Stories”Compare Results
QualitativePresent Results to Non-expert UsersRate How well Story Relates to “Seed” Story
SmartNews: Semantic Searching of News Video
QUESTIONS?