no code implementations • 27 Feb 2024 • Bob Junyi Zou, Matthew E. Levine, Dessi P. Zaharieva, Ramesh Johari, Emily B. Fox
We encode this information in a causal loss that we combine with the standard predictive loss to arrive at a hybrid loss that biases our learning towards causally valid hybrid models.
no code implementations • 22 Feb 2023 • Shuangning Li, Ramesh Johari, Xu Kuang, Stefan Wager
We study randomized experiments in a service system when stochastic congestion can arise from temporarily limited supply and/or demand.
1 code implementation • 31 Mar 2022 • Devansh Jalota, Karthik Gopalakrishnan, Navid Azizan, Ramesh Johari, Marco Pavone
at each period, we show that our approach obtains an expected regret and road capacity violation of $O(\sqrt{T})$, where $T$ is the number of periods over which tolls are updated.
1 code implementation • NeurIPS 2020 • Mohsen Bayati, Nima Hamidi, Ramesh Johari, Khashayar Khosravi
We study the structure of regret-minimizing policies in the {\em many-armed} Bayesian multi-armed bandit problem: in particular, with $k$ the number of arms and $T$ the time horizon, we consider the case where $k \geq \sqrt{T}$.
2 code implementations • 24 Feb 2020 • Mohsen Bayati, Nima Hamidi, Ramesh Johari, Khashayar Khosravi
This finding diverges from the notion of free exploration, which relates to covariate variation, as recently discussed in contextual bandit literature.
no code implementations • 4 Dec 2019 • Bar Light, Ramesh Johari, Gabriel Weintraub
In this paper we study the following information disclosure problem in two-sided markets: If a platform wants to maximize revenue, which sellers should the platform allow to participate, and how much of its available information about participating sellers' quality should the platform share with buyers?
no code implementations • 17 May 2019 • Mohammad Rasouli, Tao Sun, Camille Pache, Patrick Panciatici, Jean Maeght, Ramesh Johari, Ram Rajagopal
The methodology consists in modelling the problem as a two-stage stochastic optimization between high priority stochastic grid services and low priority cloud storage for stochastic end users.
no code implementations • NeurIPS 2019 • Virag Shah, Jose Blanchet, Ramesh Johari
Motivated by the application of real-time pricing in e-commerce platforms, we consider the problem of revenue-maximization in a setting where the seller can leverage contextual information describing the customer's history and the product's type to predict her valuation of the product.
no code implementations • 18 Sep 2018 • Ramesh Johari, Vijay Kamble, Anilesh K. Krishnaswamy, Hannah Li
An online labor platform faces an online learning problem in matching workers with jobs and using the performance on these jobs to create better future matches.
no code implementations • 18 Jun 2018 • Nikhil Garg, Ramesh Johari
Modern online platforms rely on effective rating systems to learn about items.
1 code implementation • 30 May 2018 • Sven Schmit, Virag Shah, Ramesh Johari
Motivated by the widespread adoption of large-scale A/B testing in industry, we propose a new experimentation framework for the setting where potential experiments are abundant (i. e., many hypotheses are available to test), and observations are costly; we refer to this as the experiment-rich regime.
1 code implementation • ICML 2018 • Ramesh Johari, Sven Schmit
Consider a platform that wants to learn a personalized policy for each user, but the platform faces the risk of a user abandoning the platform if she is dissatisfied with the actions of the platform.
no code implementations • NeurIPS 2018 • Virag Shah, Jose Blanchet, Ramesh Johari
In other words, arrivals exhibit positive externalities.
no code implementations • NeurIPS 2016 • Subhashini Krishnasamy, Rajat Sen, Ramesh Johari, Sanjay Shakkottai
A naive view of this problem would suggest that queue-regret should grow logarithmically: since queue-regret cannot be larger than classical regret, results for the standard MAB problem give algorithms that ensure queue-regret increases no more than logarithmically in time.
no code implementations • 15 Mar 2016 • Ramesh Johari, Vijay Kamble, Yash Kanoria
We introduce a benchmark model with heterogeneous "workers" (demand) and a limited supply of "jobs" that arrive over time.
no code implementations • 9 Feb 2016 • Carlos Riquelme, Ramesh Johari, Baosen Zhang
We consider the problem of online active learning to collect data for regression modeling.
1 code implementation • 22 Sep 2015 • Matt V. Leduc, Matthew O. Jackson, Ramesh Johari
When a new product or technology is introduced, potential consumers can learn its quality by trying the product, at a risk, or by letting others try it and free-riding on the information that they generate.
Economics Computer Science and Game Theory Social and Information Networks Physics and Society 91D30, 05C82, 91A43
no code implementations • NeurIPS 2011 • Loc X. Bui, Ramesh Johari, Shie Mannor
In the second phase the decision maker has to commit to one of the arms and stick with it.