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Home / Proceedings / Proceedings of the AAAI Conference on Artificial Intelligence, 35 / No. 6: AAAI-21 Technical Tracks 6

Online Posted Pricing with Unknown Time-Discounted Valuations

February 1, 2023

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Authors

Giulia Romano

Politecnico di Milano


Gianluca Tartaglia

Politecnico di Milano


Alberto Marchesi

Politecnico di Milano


Nicola Gatti

Politecnico di Milano


DOI:

10.1609/aaai.v35i6.16713


Abstract:

We study the problem of designing posted-price mechanisms in order to sell a single unit of a single item within a finite period of time. Motivated by real-world problems, such as, e.g., long-term rental of rooms and apartments, we assume that customers arrive online according to a Poisson process, and their valuations are drawn from an unknown distribution and discounted over time. We evaluate our mechanisms in terms of competitive ratio, measuring the worst-case ratio between their revenue and that of an optimal mechanism that knows the distribution of valuations. First, we focus on the identical valuation setting, where all the customers value the item for the same amount. In this setting, we provide a mechanism M_c that achieves the best possible competitive ratio, discussing its dependency on the parameters in the case of linear discount. Then, we switch to the random valuation setting. We show that, if we restrict the attention to distributions of valuations with a monotone hazard rate, then the competitive ratio of M_c is lower bounded by a strictly positive constant that does not depend on the distribution. Moreover, we provide another mechanism, called M_pc, which is defined by a piecewise constant pricing strategy and reaches performances comparable to those obtained with M_c. This mechanism is useful when the seller cannot change the posted price too often. Finally, we empirically evaluate the performances of our mechanisms in a number of experimental settings.

Topics: AAAI

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HOW TO CITE:

Giulia Romano||Gianluca Tartaglia||Alberto Marchesi||Nicola Gatti Online Posted Pricing with Unknown Time-Discounted Valuations Proceedings of the AAAI Conference on Artificial Intelligence (2021) 5682-5689.

Giulia Romano||Gianluca Tartaglia||Alberto Marchesi||Nicola Gatti Online Posted Pricing with Unknown Time-Discounted Valuations AAAI 2021, 5682-5689.

Giulia Romano||Gianluca Tartaglia||Alberto Marchesi||Nicola Gatti (2021). Online Posted Pricing with Unknown Time-Discounted Valuations. Proceedings of the AAAI Conference on Artificial Intelligence, 5682-5689.

Giulia Romano||Gianluca Tartaglia||Alberto Marchesi||Nicola Gatti. Online Posted Pricing with Unknown Time-Discounted Valuations. Proceedings of the AAAI Conference on Artificial Intelligence 2021 p.5682-5689.

Giulia Romano||Gianluca Tartaglia||Alberto Marchesi||Nicola Gatti. 2021. Online Posted Pricing with Unknown Time-Discounted Valuations. "Proceedings of the AAAI Conference on Artificial Intelligence". 5682-5689.

Giulia Romano||Gianluca Tartaglia||Alberto Marchesi||Nicola Gatti. (2021) "Online Posted Pricing with Unknown Time-Discounted Valuations", Proceedings of the AAAI Conference on Artificial Intelligence, p.5682-5689

Giulia Romano||Gianluca Tartaglia||Alberto Marchesi||Nicola Gatti, "Online Posted Pricing with Unknown Time-Discounted Valuations", AAAI, p.5682-5689, 2021.

Giulia Romano||Gianluca Tartaglia||Alberto Marchesi||Nicola Gatti. "Online Posted Pricing with Unknown Time-Discounted Valuations". Proceedings of the AAAI Conference on Artificial Intelligence, 2021, p.5682-5689.

Giulia Romano||Gianluca Tartaglia||Alberto Marchesi||Nicola Gatti. "Online Posted Pricing with Unknown Time-Discounted Valuations". Proceedings of the AAAI Conference on Artificial Intelligence, (2021): 5682-5689.

Giulia Romano||Gianluca Tartaglia||Alberto Marchesi||Nicola Gatti. Online Posted Pricing with Unknown Time-Discounted Valuations. AAAI[Internet]. 2021[cited 2023]; 5682-5689.


ISSN: 2374-3468


Published by AAAI Press, Palo Alto, California USA
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