Detecting events in videos using semantic analytics of subtitles
ForfatterLeer, Erik Bræck
Recently, television broadcasters such as the NRK and TV2 channels, have begun offering live internet television and movie archive along with their regular schedule, much like the known video archives such as Youtube and Vimeo. The amount of all television offered reduces the ability of the user to get an overview of the programs that are available at any given time, making the user will probably miss important events. Regular indexing engines for recommending does not generally work on media since it is hard to index media data. Tags and keywords describing a media le does only describe the whole le, making it difficult to use them for indexing and recommendation of specific scenes within the media. This thesis presents a text event detection system for discovering interesting events based on video subtitles. By performing textual analytics, our system is able to discover events that are not discoverable through regular syntactic search. We have, based on related work, extended algorithms used for discovering semantic relationships between different words. Also, we have experimented with several algorithm for capturing the essence of each sentence, relating the prominent sense of each sense towards the events. Our experiments illustrates how we can increase the accuracy of the algorithm used by performing a context exploration based on event keywords. The results shows that our system improved the base algorithm of the prototype by including more relevance methods like consecutive sentence similarity and similarity based on sentence internals.
ForlagUniversitetet i Tromsø
University of Tromsø
Følgende lisensfil er knyttet til denne innførselen:
Viser innførsler relatert til tittel, forfatter og emneord.
Viken Valvåg, Steffen (Doctoral thesis; Doktorgradsavhandling, 2012-01-30)MapReduce has become a widely employed programming model for large-scale data-intensive computations. Traditional MapReduce engines employ dynamic routing of data as a core mechanism for fault tolerance and load balancing. ...
Gracious space: Library programming strategies towards immigrants as tools in the creation of social capital Vårheim, Andreas (Journal article; Tidsskriftartikkel; Peer reviewed, 2011)Recent research on the generation of social trust and social capital gives public institutions prominent roles as instruments for creating social capital, the trust and connections between community members that yield ...
Landlocked States and the Protection of the Marine Environment – with Special Emphasis on Switzerland Maurer, Anina (Master thesis; Mastergradsoppgave, 2012-09-03)This thesis assesses the obligations of landlocked states (LLSs) to protect the marine environment as a whole. In order to limit the scope, three international instruments are focussed upon: the United Nations Convention ...