RECORD
Differentially Private Online Item Pricing
Computer Science and Game Theory · Submitted 19 May 2023
abstract compiled · 2026-09-23 · no language-model review
The authors' main claim Notably, our algorithm is the first to offer a sublinear $O(\sqrt{T}\log{T})$ regret with a privacy guarantee.
The compiled record
The paper's own sentences, arranged. Each label is drawn from a closed vocabulary; the number beside it is the probability the classifier gave that label. Numbers in the tables are the authors', checked by code. No sentence in this record was written by a model.
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The abstract, sentence by sentence
This work addresses the problem of revenue maximization in a repeated, unlimited supply item-pricing auction while preserving buyer privacy. We present a novel algorithm that provides differential privacy with respect to the buyer's input pair: item selection and bid. Notably, our algorithm is the first to offer a sublinear $O(\sqrt{T}\log{T})$ regret with a privacy guarantee. Our method is based on an exponential weights meta-algorithm, and we mitigate the issue of discontinuities in revenue functions via small random perturbations. As a result of its structural similarity to the exponential mechanism, our method inherently secures differential privacy. We also extend our algorithm to accommodate scenarios where buyers strategically bid over successive rounds. The inherent differential privacy allows us to adapt our algorithm with minimal modification to ensure a sublinear regret in this setting.
background contribution method result interpretation main claim
| # | sentence | role | the authors' own work | states the main conclusion | strength |
|---|---|---|---|---|---|
| s0 | This work addresses the problem of revenue maximization in a repeated, unlimited supply item-pricing auction while preserving buyer privacy. | background 0.98 | 0.43 | 0.07 | asserted 0.96 |
| s1 | We present a novel algorithm that provides differential privacy with respect to the buyer's input pair: item selection and bid. | contribution 0.95 | 0.95 | 0.11 | asserted 1.00 |
| s2 | Notably, our algorithm is the first to offer a sublinear $O(\sqrt{T}\log{T})$ regret with a privacy guarantee. | result 0.64 | 0.94 | 0.60 | asserted 1.00 |
| s3 | Our method is based on an exponential weights meta-algorithm, and we mitigate the issue of discontinuities in revenue functions via small random perturbations. | method 1.00 | 0.93 | 0.06 | asserted 1.00 |
| s4 | As a result of its structural similarity to the exponential mechanism, our method inherently secures differential privacy. | method 0.47 | 0.81 | 0.08 | asserted 1.00 |
| s5 | We also extend our algorithm to accommodate scenarios where buyers strategically bid over successive rounds. | contribution 0.99 | 0.93 | 0.04 | asserted 0.99 |
| s6 | The inherent differential privacy allows us to adapt our algorithm with minimal modification to ensure a sublinear regret in this setting. | contribution 0.46 | 0.90 | 0.17 | asserted 0.99 |
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The paper
Original abstract
This work addresses the problem of revenue maximization in a repeated, unlimited supply item-pricing auction while preserving buyer privacy. We present a novel algorithm that provides differential privacy with respect to the buyer's input pair: item selection and bid. Notably, our algorithm is the first to offer a sublinear $O(\sqrt{T}\log{T})$ regret with a privacy guarantee. Our method is based on an exponential weights meta-algorithm, and we mitigate the issue of discontinuities in revenue functions via small random perturbations. As a result of its structural similarity to the exponential mechanism, our method inherently secures differential privacy. We also extend our algorithm to accommodate scenarios where buyers strategically bid over successive rounds. The inherent differential privacy allows us to adapt our algorithm with minimal modification to ensure a sublinear regret in this setting.
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