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Friends and neighbors on the Web
The political blogosphere and the 2004 U.S. election: divided they blog
Differences in the behavior of liberal and conservative blogs are found, with conservative blogs linking to each other more frequently and in a denser pattern.
Exposure to ideologically diverse news and opinion on Facebook
Examination of the news that millions of Facebook users' peers shared, what information these users were presented with, and what they ultimately consumed found that friends shared substantially less cross-cutting news from sources aligned with an opposing ideology.
The dynamics of viral marketing
While on average recommendations are not very effective at inducing purchases and do not spread very far, this work presents a model that successfully identifies communities, product, and pricing categories for which viral marketing seems to be very effective.
The role of social networks in information diffusion
- E. Bakshy, Itamar Rosenn, Cameron A. Marlow, Lada A. Adamic
- EconomicsThe Web Conference
- 19 January 2012
It is shown that, although stronger ties are individually more influential, it is the more abundant weak ties who are responsible for the propagation of novel information, suggesting that weak ties may play a more dominant role in the dissemination of information online than currently believed.
Search in Power-Law Networks
- Lada A. Adamic, R. Lukose, Amit R. Puniyani, B. Huberman
- Computer SciencePhysical review. E, Statistical, nonlinear, and…
- 20 March 2001
A number of local search strategies that utilize high degree nodes in power-law graphs and that have costs scaling sublinearly with the size of the graph are introduced and demonstrated on the GNUTELLA peer-to-peer network.
Knowledge sharing and yahoo answers: everyone knows something
This paper analyzes YA's forum categories and cluster them according to content characteristics and patterns of interaction among the users, finding that lower entropy correlates with receiving higher answer ratings, but only for categories where factual expertise is primarily sought after.
Expertise networks in online communities: structure and algorithms
This study analyzes the Java Forum, a large online help-seeking community, using social network analysis methods and tests a set of network-based ranking algorithms on this large size social network in order to identify users with high expertise.
How to search a social network
The Small World Web
- Lada A. Adamic
- Computer ScienceEuropean Conference on Research and Advanced…
- 22 September 1999
It is shown that the World Wide Web is a small world, in the sense that sites are highly clustered yet the path length between them is small and the small-worldness of its search results is used to measure the connectedness between communities on the Web.