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- W2077735179 abstract "Influential agents in networks play a pivotal role in information diffusion. Influence may rise or fall quickly over time and thus capturing this evolution of influence is of benefit to a varied number of application domains such as: digital marketing, counter-terrorism or policing. In this paper we investigate the influence of users in programming communities on Twitter. We propose a new model for capturing both time-invariant influence and also temporal influence. The unified model is a combination of network topological methods and observation of influence-relevant events in the network. We provide an application of Hidden Markov Models (HMM) for capturing this effect on the network. There are many possible combinations of influence factors, hence we required a ground-truth for model configuration. We performed a primary survey of our population users to elicit their views on influential users. The survey allowed us to validate the results of our classifier. We introduce a novel reward-based transformation to the Viterbi path of the observed sequences which provides an overall ranking for users. Our results show an improvement in ranking accuracy over using solely topology-based methods for the particular area of interest we sampled. Utilising the evolutionary aspect of the HMM we attempt to predict future states using current evidence. Our prediction algorithm significantly outperforms a collection of naive models, especially in the short term (1-3 weeks)." @default.
- W2077735179 created "2016-06-24" @default.
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- W2077735179 date "2013-12-01" @default.
- W2077735179 modified "2023-09-27" @default.
- W2077735179 title "Ranking Twitter Influence by Combining Network Centrality and Influence Observables in an Evolutionary Model" @default.
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- W2077735179 doi "https://doi.org/10.1109/sitis.2013.11" @default.
- W2077735179 hasPublicationYear "2013" @default.
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