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In recent years, the blog has become the most typical social media for citizens to share their opinions. In addition, a large number of blogs reflect current social trends or major issues. Especially, more than thousand articles and more than 10,000 responding messages (comments) are registered on a well-known blog in a day. It is hard to search and explore useful messages on blogs since most blog...
Social media sharing Web sites like Flickr allow users to annotate images with free tags, which greatly facilitate social image search and browsing. However, currently tag-based image search on Flickr does not provide the option of relevance-based ranking, i.e., the search results cannot be ranked according to their relevance levels with respect to the query tag, and this has limited the effectiveness...
Analyzing unstructured text streams can be challenging. One popular approach is to isolate specific themes in the text, and to visualize the connections between them. Some existing systems, like ThemeRiver, provide a temporal view of changes in themes; other systems, like In-Spire, use clustering techniques to help an analyst identify the themes at a single point in time. Narratives combines both...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.