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We consider online variations of the Pandora's box problem (Weitzman. 1979), a standard model for understanding issues related to the cost of acquiring information for decision-making. Our problem generalizes both the classic Pandora's box…

Data Structures and Algorithms · Computer Science 2019-01-31 Hossein Esfandiari , MohammadTaghi Hajiaghayi , Brendan Lucier , Michael Mitzenmacher

The Pandora's Box problem models the search for the best alternative when evaluation is costly. In the simplest variant, a decision maker is presented with $n$ boxes, each associated with a cost of inspection and a hidden random reward. The…

Computer Science and Game Theory · Computer Science 2025-11-18 Georgios Amanatidis , Ben Berger , Tomer Ezra , Michal Feldman , Federico Fusco , Rebecca Reiffenhäuser , Artem Tsikiridis

Pandora's Box is a central problem in decision making under uncertainty that can model various real life scenarios. In this problem we are given $n$ boxes, each with a fixed opening cost, and an unknown value drawn from a known…

Data Structures and Algorithms · Computer Science 2023-02-01 Evangelia Gergatsouli , Christos Tzamos

The Pandora's Box problem and its extensions capture optimization problems with stochastic input where the algorithm can obtain instantiations of input random variables at some cost. To our knowledge, all previous work on this class of…

Data Structures and Algorithms · Computer Science 2020-04-17 Shuchi Chawla , Evangelia Gergatsouli , Yifeng Teng , Christos Tzamos , Ruimin Zhang

The Prophet Inequality and Pandora's Box problems are fundamental stochastic problem with applications in Mechanism Design, Online Algorithms, Stochastic Optimization, Optimal Stopping, and Operations Research. A usual assumption in these…

Data Structures and Algorithms · Computer Science 2023-12-08 Khashayar Gatmiry , Thomas Kesselheim , Sahil Singla , Yifan Wang

Two central problems in Stochastic Optimization are Min Sum Set Cover and Pandora's Box. In Pandora's Box, we are presented with $n$ boxes, each containing an unknown value and the goal is to open the boxes in some order to minimize the sum…

Machine Learning · Computer Science 2022-06-02 Evangelia Gergatsouli , Christos Tzamos

The Pandora's box problem (Weitzman 1979) is a core model in economic theory that captures an agent's (Pandora's) search for the best alternative (box). We study an important generalization of the problem where the agent can either fully…

Computational Engineering, Finance, and Science · Computer Science 2026-04-03 Ali Aouad , Jingwei Ji , Yaron Shaposhnik

The Correlated Pandora's Problem posed by Chawla et al. (2020) generalizes the classical Pandora's Problem by allowing the numbers inside the Pandora's boxes to be correlated. It also generalizes the Min Sum Set Cover problem, and is…

Data Structures and Algorithms · Computer Science 2025-10-13 Nikhil Bansal , Zhiyi Huang , Zixuan Zhu

The Pandora's Box Problem, originally formalized by Weitzman in 1979, models selection from set of random, alternative options, when evaluation is costly. This includes, for example, the problem of hiring a skilled worker, where only one…

Computer Science and Game Theory · Computer Science 2024-02-20 Shant Boodaghians , Federico Fusco , Philip Lazos , Stefano Leonardi

We revisit the classic Pandora's Box (PB) problem under correlated distributions on the box values. Recent work of arXiv:1911.01632 obtained constant approximate algorithms for a restricted class of policies for the problem that visit boxes…

Data Structures and Algorithms · Computer Science 2023-07-25 Shuchi Chawla , Evangelia Gergatsouli , Jeremy McMahan , Christos Tzamos

In 1979, Weitzman introduced Pandora's box problem as a framework for sequential search with costly inspections. Recently, there has been a surge of interest in Pandora's box problem, particularly among researchers working at the…

Computer Science and Game Theory · Computer Science 2023-08-24 Hedyeh Beyhaghi , Linda Cai

In a classic model analysed by Weitzman an agent is presented with boxes containing prizes. She may open boxes in any order, discover prizes within, and optimally stop. She wishes to maximize the expected value of the greatest prize found,…

Optimization and Control · Mathematics 2015-10-01 Wojciech Olszewski , Richard Weber

Parrondo's paradox arises in sequences of games in which a winning expectation may be obtained by playing the games in a random order, even though each game in the sequence may be lost when played individually. We present a suitable version…

Probability · Mathematics 2007-06-19 Antonio Di Crescenzo

Given any algorithm for convex optimization that uses exact first-order information (i.e., function values and subgradients), we show how to use such an algorithm to solve the problem with access to inexact first-order information. This is…

Optimization and Control · Mathematics 2024-06-04 Phillip Kerger , Marco Molinaro , Hongyi Jiang , Amitabh Basu

This paper revisits the classic Pandora's box problem, studying a decision-maker (DM) who seeks to minimize her maximal ex-post regret. The DM decides how many options to explore and in what order, before choosing one or taking an outside…

Theoretical Economics · Economics 2025-12-25 Sarah Auster , Yeon-Koo Che

Weitzman (1979) introduced the Pandora Box problem as a model for sequential search with inspection costs, and gave an elegant index-based policy that attains provably optimal expected payoff. In various scenarios, the searching agent may…

Data Structures and Algorithms · Computer Science 2022-12-06 Hu Fu , Jiawei Li , Daogao Liu

The prediction of the N-box paradox, that whichever box is opened will contain the record of the particle having passed through it, is traced to a failure to specify whether the other boxes are distinguishable or indistinguishable. These…

Quantum Physics · Physics 2007-05-23 Conall Boyle , Roger Schafir

The research area of algorithms with predictions has seen recent success showing how to incorporate machine learning into algorithm design to improve performance when the predictions are correct, while retaining worst-case guarantees when…

Machine Learning · Computer Science 2022-12-06 Michael Dinitz , Sungjin Im , Thomas Lavastida , Benjamin Moseley , Sergei Vassilvitskii

In delegation problems, a principal does not have the resources necessary to complete a particular task, so they delegate the task to an untrusted agent whose interests may differ from their own. Given any family of such problems and space…

Computer Science and Game Theory · Computer Science 2022-02-22 Curtis Bechtel , Shaddin Dughmi , Neel Patel

We study a natural application of contract design in the context of sequential exploration problems. In our principal-agent setting, a search task is delegated to an agent. The agent performs a sequential exploration of $n$ boxes, suffers…

Computer Science and Game Theory · Computer Science 2025-01-27 Martin Hoefer , Conrad Schecker , Kevin Schewior
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