no code implementations • 3 Mar 2024 • Joon Suk Huh, Ellen Vitercik, Kirthevasan Kandasamy
Specifically, we aim to maximize profit over an arbitrary sequence of multiple demand curves, each dependent on a distinct ancillary variable, but sharing the same price.
no code implementations • 22 Feb 2024 • Vaggos Chatziafratis, Ishani Karmarkar, Ellen Vitercik
We approach this problem by introducing a notion of size generalization for clustering algorithm accuracy.
no code implementations • 23 May 2023 • Christian Borgs, Jennifer Chayes, Christian Ikeokwu, Ellen Vitercik
We present a model for content curation and personalization that avoids filter bubbles, along with algorithmic guarantees and nearly matching lower bounds.
no code implementations • 20 Feb 2023 • Wenshuo Guo, Nika Haghtalab, Kirthevasan Kandasamy, Ellen Vitercik
Customers with few relevant reviews may hesitate to make a purchase except at a low price, so for the seller, there is a tension between setting high prices and ensuring that there are enough reviews so that buyers can confidently estimate their values.
no code implementations • 15 Apr 2022 • Maria-Florina Balcan, Siddharth Prasad, Tuomas Sandholm, Ellen Vitercik
These guarantees apply to infinite families of cutting planes, such as the family of Gomory mixed integer cuts, which are responsible for the main breakthrough speedups of integer programming solvers.
no code implementations • 22 Feb 2022 • Wenshuo Guo, Michael I. Jordan, Ellen Vitercik
We formalize this problem as an online learning task where the goal is to have low regret with respect to a myopic oracle that has perfect knowledge of the distribution over items and the seller's masking function.
no code implementations • NeurIPS 2021 • Ellen Vitercik, Tom Yan
We conclude with an application of our guarantees to multi-task mechanism design, where there are multiple distributions over buyers' values and the goal is to learn a high-revenue mechanism per distribution.
no code implementations • 18 Nov 2021 • Maria-Florina Balcan, Siddharth Prasad, Tuomas Sandholm, Ellen Vitercik
If the training set is too small, a configuration may have good performance over the training set but poor performance on future integer programs.
no code implementations • NeurIPS 2021 • Maria-Florina Balcan, Siddharth Prasad, Tuomas Sandholm, Ellen Vitercik
We first bound the sample complexity of learning cutting planes from the canonical family of Chv\'atal-Gomory cuts.
no code implementations • 24 Dec 2020 • Maria-Florina Balcan, Tuomas Sandholm, Ellen Vitercik
This algorithm configuration procedure works by first selecting a portfolio of diverse algorithm parameter settings, and then, on a given problem instance, using an algorithm selector to choose a parameter setting from the portfolio with strong predicted performance.
no code implementations • 2 Jul 2020 • Andrés Muñoz Medina, Umar Syed, Sergei Vassilvitskii, Ellen Vitercik
We also prove a lower bound demonstrating that the difference between the objective value of our algorithm's solution and the optimal solution is tight up to logarithmic factors among all differentially private algorithms.
no code implementations • ICML 2020 • Maria-Florina Balcan, Tuomas Sandholm, Ellen Vitercik
We answer this question for algorithm configuration problems that exhibit a widely-applicable structure: the algorithm's performance as a function of its parameters can be approximated by a "simple" function.
no code implementations • 8 Aug 2019 • Maria-Florina Balcan, Dan DeBlasio, Travis Dick, Carl Kingsford, Tuomas Sandholm, Ellen Vitercik
We provide a broadly applicable theory for deriving generalization guarantees that bound the difference between the algorithm's average performance over the training set and its expected performance.
no code implementations • 26 May 2019 • Maria-Florina Balcan, Tuomas Sandholm, Ellen Vitercik
Our algorithm can help compile a configuration portfolio, or it can be used to select the input to a configuration algorithm for finite parameter spaces.
no code implementations • 26 Apr 2019 • Daniel Alabi, Adam Tauman Kalai, Katrina Ligett, Cameron Musco, Christos Tzamos, Ellen Vitercik
We present an algorithm that learns to maximally prune the search space on repeated computations, thereby reducing runtime while provably outputting the correct solution each period with high probability.
no code implementations • ICML 2018 • Maria-Florina Balcan, Travis Dick, Tuomas Sandholm, Ellen Vitercik
Tree search algorithms recursively partition the search space to find an optimal solution.
no code implementations • 8 Nov 2017 • Maria-Florina Balcan, Travis Dick, Ellen Vitercik
We present general techniques for online and private optimization of the sum of dispersed piecewise Lipschitz functions.
no code implementations • 29 Apr 2017 • Maria-Florina Balcan, Tuomas Sandholm, Ellen Vitercik
We study multi-item profit maximization when there is an underlying distribution over buyers' values.
no code implementations • 14 Nov 2016 • Maria-Florina Balcan, Vaishnavh Nagarajan, Ellen Vitercik, Colin White
We address this problem for clustering, max-cut, and other partitioning problems, such as integer quadratic programming, by designing computationally efficient and sample efficient learning algorithms which receive samples from an application-specific distribution over problem instances and learn a partitioning algorithm with high expected performance.
no code implementations • NeurIPS 2016 • Maria-Florina Balcan, Tuomas Sandholm, Ellen Vitercik
In the traditional economic models, it is assumed that the bidders' valuations are drawn from an underlying distribution and that the auction designer has perfect knowledge of this distribution.
no code implementations • 30 May 2016 • Maria-Florina Balcan, Ellen Vitercik, Colin White
However, for real-valued functions, cardinal labels might not be accessible, or it may be difficult for an expert to consistently assign real-valued labels over the entire set of examples.