1,607 research outputs found
Bad Data Injection Attack and Defense in Electricity Market using Game Theory Study
Applications of cyber technologies improve the quality of monitoring and
decision making in smart grid. These cyber technologies are vulnerable to
malicious attacks, and compromising them can have serious technical and
economical problems. This paper specifies the effect of compromising each
measurement on the price of electricity, so that the attacker is able to change
the prices in the desired direction (increasing or decreasing). Attacking and
defending all measurements are impossible for the attacker and defender,
respectively. This situation is modeled as a zero sum game between the attacker
and defender. The game defines the proportion of times that the attacker and
defender like to attack and defend different measurements, respectively. From
the simulation results based on the PJM 5 Bus test system, we can show the
effectiveness and properties of the studied game.Comment: To appear in IEEE Transactions on Smart Grid, Special Issue on Cyber,
Physical, and System Security for Smart Gri
Interpretable preference learning: a game theoretic framework for large margin on-line feature and rule learning
A large body of research is currently investigating on the connection between
machine learning and game theory. In this work, game theory notions are
injected into a preference learning framework. Specifically, a preference
learning problem is seen as a two-players zero-sum game. An algorithm is
proposed to incrementally include new useful features into the hypothesis. This
can be particularly important when dealing with a very large number of
potential features like, for instance, in relational learning and rule
extraction. A game theoretical analysis is used to demonstrate the convergence
of the algorithm. Furthermore, leveraging on the natural analogy between
features and rules, the resulting models can be easily interpreted by humans.
An extensive set of experiments on classification tasks shows the effectiveness
of the proposed method in terms of interpretability and feature selection
quality, with accuracy at the state-of-the-art.Comment: AAAI 201
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