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Methoden der Künstlichen IntelligenzBachelorarbeiten

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Bachelor Thesis Proposition

The paper Augment and Reduce: Stochastic Inference for Large Categorical Distributions proposes to simplify multiclass classification for a large number of classes. The method proposed is based on probabilities but only aim at solving a maximum likelihood problem, the project would be to enlarge the scope of the algorithm with a prior by doing maximum-a-posteriori or maybe variational inference.

Please contact Theo Galy-Fajou if you are interested

Paper : https://arxiv.org/abs/1802.04220


Linear approaches to a stochastic mechanical control problem
Zitatschlüssel Mabrouk:2010:LAS
Autor Mahmoud Mabrouk
Jahr 2010
Schule TU Berlin
Zusammenfassung This thesis discusses a new method to linearize the Bellman equation for a special class of problems and tests its resulting algorithm with the state-of-the-art solutions. Reinforcement learning and Dynamic programming are presented and the state-of-the-art algorithms are discussed. The new framework and its mathematical foundations are then introduced. It results in a linear solution to the optimal action both in discrete and continuous domains, and in a new formulation of the cost-to-go function which exchanges the exhaustive search over actions with a linear solution. Later, an online and an offline algorithm are developed from the last results. They are tested against Policy Iteration and Q-Learning in a stochastic variant of the Mountain car problem. Results show a great improvement brought by the new algorithms both in speed and efficiency. Last, the limitations of the new framework are discussed.
Typ der Publikation Bachelor Thesis
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