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- W1527691665 abstract "We discuss algorithms for combining sequential prediction strategies, a task which can be viewed as a natural generalisation of the concept of universal coding. We describe a graphical language based on Hidden Markov Models for defining prediction strategies, and we provide both existing and new models as examples. The models include efficient, parameterless models for switching between the input strategies over time, including a model for the case where switches tend to occur in clusters, and finally a new model for the scenario where the prediction strategies have a known relationship, and where jumps are typically between strongly related ones. This last model is relevant for coding time series data where parameter drift is expected. As theoretical contributions we introduce an interpolation construction that is useful in the development and analysis of new algorithms, and we establish a new sophisticated lemma for analysing the individual sequence regret of parameterised models." @default.
- W1527691665 created "2016-06-24" @default.
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- W1527691665 date "2013-11-01" @default.
- W1527691665 modified "2023-09-28" @default.
- W1527691665 title "Universal codes from switching strategies" @default.
- W1527691665 hasPublicationYear "2013" @default.
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