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- W2950850169 abstract "Sponsored search is an important monetization channel for search engines, in which an auction mechanism is used to select the ads shown to users and determine the prices charged from advertisers. There have been several pieces of work in the literature that investigate how to design an auction mechanism in order to optimize the revenue of the search engine. However, due to some unrealistic assumptions used, the practical values of these studies are not very clear. In this paper, we propose a novel emph{game-theoretic machine learning} approach, which naturally combines machine learning and game theory, and learns the auction mechanism using a bilevel optimization framework. In particular, we first learn a Markov model from historical data to describe how advertisers change their bids in response to an auction mechanism, and then for any given auction mechanism, we use the learnt model to predict its corresponding future bid sequences. Next we learn the auction mechanism through empirical revenue maximization on the predicted bid sequences. We show that the empirical revenue will converge when the prediction period approaches infinity, and a Genetic Programming algorithm can effectively optimize this empirical revenue. Our experiments indicate that the proposed approach is able to produce a much more effective auction mechanism than several baselines." @default.
- W2950850169 created "2019-06-27" @default.
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- W2950850169 date "2014-06-03" @default.
- W2950850169 modified "2023-09-25" @default.
- W2950850169 title "A Game-theoretic Machine Learning Approach for Revenue Maximization in Sponsored Search" @default.
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- W2950850169 doi "https://doi.org/10.48550/arxiv.1406.0728" @default.
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