University of Cambridge > Talks.cam > Microsoft Research Cambridge, public talks > Weightedness and Structural Characterization of Hierarchical Simple Games

  Browse A-Z

Log in

Cambridge users (raven)details Other usersdetails No account?details

Information on

Subscribing to talksdetails Finding a talkdetails Adding a talkdetails Disseminating talksdetails Help and Documentationdetails

Weightedness and Structural Characterization of Hierarchical Simple Games

Add to your list(s) Download to your calendar using vCal

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

Secret sharing schemes—first introduced by Shamir (1979) and now widely used in many cryptographic protocols—is a tool designed for securely storing information that is highly sensitive and highly important. The set of all authorised coalitions of a secret sharing scheme is known as the access structure. It can also be modeled by a simple game. In the theory of simple games seniority of players is usually modeled by assigning to players different weights. Shamir (1979) also suggested (independently from any literature on simple games) to model seniority of users in access structure by assigning weights to them. However this approach was not actively pursued. Instead, Simmons (1990) introduced the concept of a hierarchical access structures. In this talk we will compare these two different approaches to model seniority of players. Also we will characterize hierarchical access structures from game theoretical point of view.

This talk is part of the Microsoft Research Cambridge, public talks series.

Tell a friend about this talk:

This talk is included in these lists:

Note that ex-directory lists are not shown.

Other lists

Churchill Archives Centre 11th Cambridge Immunology Forum 23.9.10 Cancer Research UK Cambridge Institute - Invited speakers

Other talks

Speculations about homological mirror symmetry for affine hypersurfaces Giant response of weakly driven systems Perylene-Based Poly(N-Heterocycles): Organic Semiconductors, Biological Fluorescence Probes and Building Blocks for Molecular Surface Networks St Catharine’s Political Economy Seminar - ‘Global Imbalances and Greece's Exit from the Crisis’ by Dimitrios Tsomocos Katie Field - Symbiotic options for the conquest of land Symplectic topology of K3 surfaces via mirror symmetry Structural basis for human mitochondrial DNA replication, repair and antiviral drug toxicity Constructing the virtual fundamental cycle Lunchtime Talk: Helen's Bedroom Replication or exploration? Sequential design for stochastic simulation experiments
 

© 2006-2024 Talks.cam, University of Cambridge. Contact Us | Help and Documentation | Privacy and Publicity