Relative Loss Bounds for On-line Density Estimation with the Exponential Family of Distributions
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Abstract (arXiv)
We consider on-line density estimation with a parameterized density from the exponential family. The on-line algorithm receives one example at a time and maintains a parameter that is essentially an average of the past examples. After receiving an example the algorithm incurs a loss which is the negative log-likelihood of the example w.r.t. the past parameter of the algorithm. An off-line algorithm can choose the best parameter based on all the examples. We prove bounds on the additional total loss of the on-line algorithm over the total loss of the off-line algorithm. These relative loss bounds hold for an arbitrary sequence of examples. The goal is to design algorithms with the best possible relative loss bounds. We use a certain divergence to derive and analyze the algorithms. This divergence is a relative entropy between two exponential distributions.
Key facts. Cited by 59 papers in the map (data through 7 Oct 2026). First posted on arXiv 23 Jan 2013.
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Citing papers per year: 2021: 13; 2022: 10; 2023: 9; 2024: 9; 2025: 8; 2026: 10.
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