no code implementations • 8 Jun 2023 • Peizhong Ju, Sen Lin, Mark S. Squillante, Yingbin Liang, Ness B. Shroff
For example, when the total number of features in the source task's learning model is fixed, we show that it is more advantageous to allocate a greater number of redundant features to the task-specific part rather than the common part.
no code implementations • 1 Jun 2023 • Peizhong Ju, Arnob Ghosh, Ness B. Shroff
Fairness plays a crucial role in various multi-agent systems (e. g., communication networks, financial markets, etc.).
no code implementations • 9 Apr 2023 • Peizhong Ju, Yingbin Liang, Ness B. Shroff
However, due to the uniqueness of meta-learning such as task-specific gradient descent inner training and the diversity/fluctuation of the ground-truth signals among training tasks, we find new and interesting properties that do not exist in single-task linear regression.
no code implementations • 5 Dec 2022 • Peiwen Qiu, Yining Li, Zhuqing Liu, Prashant Khanduri, Jia Liu, Ness B. Shroff, Elizabeth Serena Bentley, Kurt Turck
Decentralized bilevel optimization has received increasing attention recently due to its foundational role in many emerging multi-agent learning paradigms (e. g., multi-agent meta-learning and multi-agent reinforcement learning) over peer-to-peer edge networks.
no code implementations • 4 Jun 2022 • Peizhong Ju, Xiaojun Lin, Ness B. Shroff
Our upper bound reveals that, between the two hidden-layers, the test error descends faster with respect to the number of neurons in the second hidden-layer (the one closer to the output) than with respect to that in the first hidden-layer (the one closer to the input).
no code implementations • 9 Mar 2021 • Peizhong Ju, Xiaojun Lin, Ness B. Shroff
Specifically, for a class of learnable functions, we provide a new upper bound of the generalization error that approaches a small limiting value, even when the number of neurons $p$ approaches infinity.
no code implementations • 22 Feb 2021 • Cheng Zhang, Yunze Pan, Yunqi Zhang, Adam C. Champion, Zhaohui Shen, Dong Xuan, Zhiqiang Lin, Ness B. Shroff
Further, the evaluation shows no consistent differences among three vertex centrality measures for long-term (i. e., weekly) contact graphs, which necessitates the inclusion of SEIR simulation in our framework.
Social and Information Networks Computers and Society
no code implementations • 4 Feb 2021 • Ahmed M. Bedewy, Yin Sun, Rahul Singh, Ness B. Shroff
We devise a low-complexity solution to solve this problem and prove that, for practical sensing times that are short, the solution is within a small gap from the optimum AoI performance.
Information Theory Information Theory
no code implementations • 9 Jan 2021 • Yuntian Deng, Shiping Shao, Archak Mittal, Richard Twumasi-Boakye, James Fishelson, Abhishek Gupta, Ness B. Shroff
Accordingly, in this paper, we use cooperative game theory coupled with the hyperpath-based stochastic user equilibrium framework to study such a market.
no code implementations • 25 Jul 2020 • Rahul Singh, Fang Liu, Ness B. Shroff
In this paper, we show that the testing problem can be cast as a sequential learning-based resource allocation problem with constraints, where the input to the problem is provided by a time-varying social contact graph obtained through various contact tracing tools.
1 code implementation • ICML 2020 • Wenbo Ren, Jia Liu, Ness B. Shroff
From a given set of items, the learner can make pairwise comparisons on every pair of items, and each comparison returns an independent noisy result about the preferred item.
no code implementations • 6 Jul 2020 • Wenbo Ren, Xingyu Zhou, Jia Liu, Ness B. Shroff
To handle this dilemma, we adopt differential privacy and study the regret upper and lower bounds for MAB algorithms with a given LDP guarantee.
no code implementations • 27 Feb 2020 • Rahul Singh, Abhishek Gupta, Ness B. Shroff
In order to measure the performance of a reinforcement learning algorithm that satisfies the average cost constraints, we define an $M+1$ dimensional regret vector that is composed of its reward regret, and $M$ cost regrets.
1 code implementation • NeurIPS 2019 • Wenbo Ren, Jia Liu, Ness B. Shroff
This paper studies the problem of finding the exact ranking from noisy comparisons.
no code implementations • 8 Jun 2018 • Wenbo Ren, Jia Liu, Ness B. Shroff
For the PAC top-$k$ ranking problem, we derive a lower bound on the sample complexity (aka number of queries), and propose an algorithm that is sample-complexity-optimal up to an $O(\log(k+l)/\log{k})$ factor.
no code implementations • 26 Apr 2017 • Swapna Buccapatnam, Fang Liu, Atilla Eryilmaz, Ness B. Shroff
We study the stochastic multi-armed bandit (MAB) problem in the presence of side-observations across actions that occur as a result of an underlying network structure.
no code implementations • 1 Dec 2016 • Zizhan Zheng, Ness B. Shroff, Prasant Mohapatra
As these attacks are often designed to disable a system (or a critical resource, e. g., a user account) repeatedly, it is crucial for the defender to keep updating its security measures to strike a balance between the risk of being compromised and the cost of security updates.