Life Activity Modeling of News Event on Twitter Using Energy Function.
Rong LuZhiheng XuYang ZhangQing YangPublished in: PAKDD (2) (2012)
Keyphrases
- energy function
- graph cuts
- energy minimization
- social media
- real world events
- news articles
- markov random field
- image intensity
- global minimum
- active contours
- news stories
- segmentation method
- hopfield neural network
- image segmentation
- shape model
- level set
- social networks
- news events
- user generated content
- problems in computer vision
- news reports
- news media
- emerging topics
- reconstruction process
- belief propagation
- online news
- energy functional
- news sources
- object segmentation
- shape prior
- smoothness constraint
- online social networks
- regularization term
- evolutionary algorithm
- topic detection
- micro blogging
- social networking