Understanding-Oriented Multimedia News Retrieval

Online news reading becomes an important channel for information acquisition in our daily lives. Users have to consume much time in finding the news they are interested in from such huge volumes of information. To facilitate users to access news quickly a

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Understanding-Oriented Multimedia News Retrieval

Abstract Online news reading becomes an important channel for information acquisition in our daily lives. Users have to consume much time in finding the news they are interested in from such huge volumes of information. To facilitate users to access news quickly and comprehensively, we design understanding-oriented multimedia news search and browsing systems, in which the news elements of “Where”, “Who”, “What” and “When” are enhanced. The result ranking and visualization are conducted to present search results relevant to a target news query.

5.1 Introduction Online news reading services, such as Google News and Yahoo! News, have become increasingly prevalent as the Internet provides fast access to news information from various sources around every corner of the world. Consequently, online news reading becomes an important channel for information acquisition in our daily lives. According to the report by the Pew Research Center’s Project for Excellence in Journalism,1 58.2% of Americans receive news online, overtaking newspaper readership (about 35%) by the end of 2011. However, with the explosive growth of the World Wide Web, vast amounts of news resources are generated every day. Users have to consume much time in finding the news they are interested in from such huge volumes of information. Therefore, how to help users access their desired news quickly and comprehensively is a key issue of online news services. A news article is defined as a specific event arose by specific people or an organization which happens at a certain time and place. That is, a news article corresponding to a specific news event can be identified according to the following “4W” elements:

c Li, Z., Liu, J., Zhu, X., Lu, H. “Multi-modal Multi-correlation Person-centwric News c Retrieval”, ACM Conference on Information and Knowledge Management, 2010 ACM, Inc. Reprinted by permission. https://doi.org/10.1145/1871437.1871464. 1 http://www.journalism.org/.

© Springer Nature Singapore Pte Ltd. 2017 Z. Li, Understanding-Oriented Multimedia Content Analysis, Springer Theses, DOI 10.1007/978-981-10-3689-7_5

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5 Understanding-Oriented Multimedia News Retrieval

Fig. 5.1 An illustrate example of connections among news entities and news events

Who (person or organization), When (time), Where (locations), and What (event). In particular, “Who” as a news entity should be paid special attention because the social network among different persons can be viewed as a kind of indirect connection among news events as well as their textual relevance. Accordingly, news event and news person should be considered as the two basic items in news retrieval, special for person-centric news retrieval in this section. The both items are correlated to each other. Specifically, different news articles may be relevant when the news events happen on the same or related persons, and the persons appearing in the same news event should also be related by certain social interaction. As shown in Fig. 5.1, the fi