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  • 标题:Query Keyword Extraction from Video Caption Data based on Spatio-Temporal Features
  • 本地全文:下载
  • 作者:Honoka Kakimoto ; Toshinori Hayashi ; Yuanyuan Wang
  • 期刊名称:Lecture Notes in Engineering and Computer Science
  • 印刷版ISSN:2078-0958
  • 电子版ISSN:2078-0966
  • 出版年度:2018
  • 卷号:2233&2234
  • 页码:405-408
  • 出版社:Newswood and International Association of Engineers
  • 摘要:Recently, people have begun searching for relevant information of each scene of TV program videos with other devices, such as smartphones and tablets. While viewing TV programs, user’s interests change with each scene of the video. When they try to get information related to the content of the scenes, users have to input appropriate query keywords for a Web search. However, it takes users time and effort to find their desired information. Although some data casting services suggest related information to TV programs, the related information does not synchronize enough with each scene of the videos. To solve this problem, our system proposes a novel query keyword extraction method for Web searches, based on spatio-temporal features of videos, using location names in the video caption data. We first extract the location names and classify them into two factors: geographical distance between locations and semantic distance between location names. The system recommends related information by setting the maximum range of each area. Subsequently, we determine the main topics and sub topics for generating web search queries based on the length of time. Therefore, through our system, suitable web pages for each scene can be found based on the generated query keywords.
  • 关键词:Closed caption; geographical metadata; geographical relationships; recommender system; topic extraction
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