|COOKIES: By using this website you agree that we can place Google Analytics Cookies on your device for performance monitoring.|
Trust and Mistrust on the Internet
If you have a question about this talk, please contact Microsoft Research Cambridge Talks Admins.
This event may be recorded and made available internally or externally via http://research.microsoft.com. Microsoft will own the copyright of any recordings made. If you do not wish to have your image/voice recorded please consider this before attending
The rise of Internet-based markets and social networks has created an unprecedented opportunity to engineer socio-economic interactions at a large scale. In this talk, I will discuss my work on addressing the issues of trust and mistrust in designing these socio-economic systems.
I will first describe a model of networked trust that is an alternative to centralized reputation/virtual currency systems on the Internet. Informally, every node in the network acts as a bank and prints its own currency, which is then used to purchase services within the network. Transactions between untrusting agents proceed through exchange of IOUs along a chain of trust. Such “trust networks” are robust to infiltration, since any node only accepts currency printed by other nodes that it directly trusts. We will analyze the liquidity of this model, i.e., the number of transactions that such a network can support. We will show that in many interesting cases, the liquidity of these trust networks is comparable to centralized currency systems. We will also present results on the formation of credit networks by self-interested agents.
While social networks and the Internet have made it much easier to communicate, there is considerable anecdotal and research evidence that we are getting more polarized as a society. I will present an analysis of the dynamics of opinion polarization in a social network, and discuss its implications for the design of recommendation algorithms, as well as social systems that enable large scale collective decision making.
This talk is part of the Microsoft Research Cambridge, public talks series.
This talk is included in these lists:
Note that ex-directory lists are not shown.
Other listsCambridge University International Development (CUID) Cambridge Infectious Diseases EMBL-EBI Science and Society Programme
Other talks'Birth 1871' a film screening to be followed by a Q and A session Systemic Risk: Models and Mechanisms Perspectives on the surface reactivity of actinides CGHR Research Group From static structures to molecular movies: pushing the boundaries of X-ray Crystallography Politics in Common in the Digital Age