Emotional reactions to real-world events in social networks
MetadataShow full item record
A convergence of emotions among people in social networks is potentially resulted by the occurrence of an unprecedented event in real world. E.g., a majority of bloggers would react angrily at the September 11 terrorist attacks. Based on this observation, we introduce a sentiment index, computed from the current mood tags in a collection of blog posts utilizing an affective lexicon, potentially revealing subtle events discussed in the blogosphere. We then develop a method for extracting events based on this index and its distribution. Our second contribution is establishment of a new bursty structure in text streams termed a sentiment burst. We employ a stochastic model to detect bursty periods of moods and the events associated. Our results on a dataset of more than 12 million mood-tagged blog posts over a 4-year period have shown that our sentiment-based bursty events are indeed meaningful, in several ways.
Showing items related by title, author, creator and subject.
An exploration of the cognitive mechanism underlying general risk-aversion in obsessive-compulsive disorder : the construction and validation of the multi-dimensional risk-assessment scaleGarratt-Reed, David (2012)Individuals with OCD avoid minor risks that are unrelated to their obsessive fears and this general risk-aversion is implicated in treatment failure and relapse. However, a lack of understanding of the cognitive biases ...
Acoustic observation of ice rifting and breaking events on the Antarctic ice shelf using remote hydroacoustic listening stationsLi, Binghui (2010)Long-term continuous monitoring of ice break-up on ice shelves and icebergs in Antarctica is essential for a global observation system of climate change and its consequences. While calving of massive pieces of ice from ...
Mineralisation footprints and regional timing of the world-class Siguiri orogenic gold district (Guinea, West Africa)Lebrun, E.; Thébaud, N.; Miller, J.; Roberts, M.; Evans, Noreen (2017)Siguiri is a world-class orogenic gold district hosted in the weakly metamorphosed Upper Birimian to Lower Tarkwa Group sedimentary rocks of the Siguiri Basin (Guinea). The district is characterised by a protracted ...