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 preferencenet


92977ae4d2ba21425a59afb269c2a14e-Supplemental.pdf

Neural Information Processing Systems

We revisit survey results from Section 6, and explore the impact of label noise on our proposed method. Each participant was told that an auction would be fair if each ad was presented to each group at equal rates. We train PreferenceNet, perturbing labels according to their distance from the decision boundary. Eliciting preferences from a group is particularly challenging, because these preferences often heterogeneous. Table 2: We simulate preference elicitation of three different definitions of fairness.



PreferenceNet: Encoding Human Preferences in Auction Design with Deep Learning

Neural Information Processing Systems

The design of optimal auctions is a problem of interest in economics, game theory and computer science. Despite decades of effort, strategyproof, revenue-maximizing auction designs are still not known outside of restricted settings. However, recent methods using deep learning have shown some success in approximating optimal auctions, recovering several known solutions and outperforming strong baselines when optimal auctions are not known. In addition to maximizing revenue, auction mechanisms may also seek to encourage socially desirable constraints such as allocation fairness or diversity. However, these philosophical notions neither have standardization nor do they have widely accepted formal definitions. In this paper, we propose PreferenceNet, an extension of existing neural-network-based auction mechanisms to encode constraints using (potentially human-provided) exemplars of desirable allocations. In addition, we introduce a new metric to evaluate an auction allocations' adherence to such socially desirable constraints and demonstrate that our proposed method is competitive with current state-of-the-art neural-network based auction designs. We validate our approach through human subject research and show that we are able to effectively capture real human preferences.


A Simulating Noisy Preferences

Neural Information Processing Systems

We revisit survey results from Section 6, and explore the impact of label noise on our proposed method. After some familiarization, we asked the participants to determine if a given scenario was fair. PCA is most sensitive to noise. In contrast, average regret and payments are comparable irrespective of input label noise. We compare the real distribution to the probit model in Figure 6 using a Q-Q plot.



PreferenceNet: Encoding Human Preferences in Auction Design with Deep Learning

Neural Information Processing Systems

The design of optimal auctions is a problem of interest in economics, game theory and computer science. Despite decades of effort, strategyproof, revenue-maximizing auction designs are still not known outside of restricted settings. However, recent methods using deep learning have shown some success in approximating optimal auctions, recovering several known solutions and outperforming strong baselines when optimal auctions are not known. In addition to maximizing revenue, auction mechanisms may also seek to encourage socially desirable constraints such as allocation fairness or diversity. However, these philosophical notions neither have standardization nor do they have widely accepted formal definitions. In this paper, we propose PreferenceNet, an extension of existing neural-network-based auction mechanisms to encode constraints using (potentially human-provided) exemplars of desirable allocations.


PreferenceNet: Encoding Human Preferences in Auction Design with Deep Learning

Peri, Neehar, Curry, Michael J., Dooley, Samuel, Dickerson, John P.

arXiv.org Artificial Intelligence

The design of optimal auctions is a problem of interest in economics, game theory and computer science. Despite decades of effort, strategyproof, revenue-maximizing auction designs are still not known outside of restricted settings. However, recent methods using deep learning have shown some success in approximating optimal auctions, recovering several known solutions and outperforming strong baselines when optimal auctions are not known. In addition to maximizing revenue, auction mechanisms may also seek to encourage socially desirable constraints such as allocation fairness or diversity. However, these philosophical notions neither have standardization nor do they have widely accepted formal definitions. In this paper, we propose PreferenceNet, an extension of existing neural-network-based auction mechanisms to encode constraints using (potentially human-provided) exemplars of desirable allocations. In addition, we introduce a new metric to evaluate an auction allocations' adherence to such socially desirable constraints and demonstrate that our proposed method is competitive with current state-of-the-art neural-network based auction designs. We validate our approach through human subject research and show that we are able to effectively capture real human preferences. Our code is available at https://github.com/neeharperi/PreferenceNet