Cascades on Online Social Networks: A Chronological Account

A paper presented at the 4th Internet Science Conference (INSCI2017).
Thessaloniki, Greece, November 2017

Transcript

1. Cascades on Online Social Networks: A Chronological Account Nora Alrajebah, Thanassis Tiropanis, Leslie Carr
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3. The core affordances of OSNs
4. 1. Connect to others Follow Friend
5. 2. Create content
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7. 3. Express admiration favourite, like a.k.a. heart
8. 4. Spread content re += {tweet | blog | path} && share
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11. cascades are considered as an artefact to study information diffusion on OSN They are the manifestation of the information diffusion process
12. The two facets of a cascade Structural Temporal Who influenced whom to spread the content How many shares are there at any point in time (Day/Hour) 0! 6! 12! 18! 24! 30! 0! 2! 4! 6! 8! 10! Number of shares! Days after publishing!
13. Paper TOC Our paper answers the following questions about cascades: 1. What are they? definitions .. 2. What is their significance? 3. How cascade networks are constructed? 4. What are the effects of the content type and the available data on cascade construction approaches? 5. What features we can use to analyse cascades? i.e., how can we quantify cascades?
14. Paper TOC Our paper answers the following questions about cascades: 1. What are they? definitions .. 2. What is their significance? 3. How cascade networks are constructed? 4. What are the effects of the content type and the available data on cascade construction approaches? 5. What features we can use to analyse cascades? i.e., how can we quantify cascades?
15. Why analysing cascades is important? 1. A proxy to unravel the way information is spread on the Web 2. Estimate influence and homophily between users 3. Estimate the value of the content 4.They are better indicators of users’ interest and trust networks 5.Explain social network evolution
16. Purposes for Studying Cascades Cascade Analysis Tracking Quantifying Predicting Modeling Constructing Inferring Structural Temporal Numerical
17. Purposes for Studying Cascades Cascade Analysis Tracking Quantifying Predicting Modeling Constructing Inferring Structural Temporal Numerical
18. Constructing a ‘Cascade’ Network Cascades construction approaches Collective cascades Single cascade Platform- defined Forest Generic Tree/ Forest Forest Content type Network topology Platform- defined Generic
19. Cascade Analysis Tracking Quantifying Predicting Modeling Constructing Inferring Structural Temporal Numerical Purposes for Studying Cascades
20. Cascade Features Cascade Features Structural Temporal Cascade-centric Node-centric Other Burstiness/Growth Recurrence
21. Wrapping up .. • Cascades matter! • Platforms & content types matter! • They affect how data about cascades can be collected, prepared and analysed • Research tasks are affected (challenged!) by them
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