Mais conteúdo relacionado Semelhante a Impact of Sampling on Diffusion on Twitter (20) Impact of Sampling on Diffusion on Twitter1. How Does the Data Sampling Strategy Impact the Discovery of Information Diffusion in Social Media? Munmun De Choudhury1, Yu-Ru Lin1, Hari Sundaram1, K. Selcuk Candan1, Lexing Xie2, Aisling Kelliher1 1Arizona State University, Tempe, AZ 2IBM T. J. Watson Research Center, Hawthorne, NY 3. Background and Motivation Problem Definition Sampling Diffusion Data Evaluation of Diffusion Samples Experimental Study Conclusions 4. 5/23/10 4 Modern Social Interactional Modes Slashdot Facebook Engadget LiveJournal Digg Twitter MetaFilter Flickr Reddit Orkut Blogger YouTube MySpace 22. Background and Motivation Problem Definition Sampling Diffusion Data Evaluation of Diffusion Samples Experimental Study Conclusions 24. What is the role of context in the sampling process? 28. Background and Motivation Problem Definition Sampling Diffusion Data Evaluation of Diffusion Samples Experimental Study Conclusions 37. Background and Motivation Problem Definition Sampling Diffusion Data Evaluation of Diffusion Samples Experimental Study Conclusions 38. Diffusion Saturation Metrics User-based(Volume, participation, dissemination) Topology-based(Reach, spread, cascade instances, collection size) Time-based(Rate) 38 Volume Spread Rate Participation Dissemination Reach Collection Size Cascade Instances 5/23/10 41. Background and Motivation Problem Definition Sampling Diffusion Data Evaluation of Diffusion Samples Experimental Study Conclusions 48. Is this a slam dunk for forest fire + activity? 57. Background and Motivation Problem Definition Sampling Diffusion Data Evaluation of Diffusion Samples Experimental Study Conclusions 61. Thanks! Questions? munmun@asu.edu For Publications / Datasets: http://www.public.asu.edu/~mdechoud/ Twitter: @munmun10 Notas do Editor I believe so – I think social networks will change our understanding of media semantics in a fundamental way and not just because we have more data; Densification, shrinking diameter; generative model Volume, participation and dissemination rate Reach, spread, cascade instances and collection size