no code implementations • 19 May 2024 • Yididiya Y. Nadew, Xuhui Fan, Christopher J. Quinn
To overcome this challenge, we propose a conditionally-conjugate Gaussian process factor analysis (ccGPFA) resulting in both analytically and computationally tractable inference for modeling neural activity from spike count data.
1 code implementation • 15 Mar 2024 • Mohammad Pedramfar, Yididiya Y. Nadew, Christopher J. Quinn, Vaneet Aggarwal
This paper introduces unified projection-free Frank-Wolfe type algorithms for adversarial continuous DR-submodular optimization, spanning scenarios such as full information and (semi-)bandit feedback, monotone and non-monotone functions, different constraints, and types of stochastic queries.
1 code implementation • 18 Jul 2022 • Abhishek K. Umrawal, Christopher J. Quinn, Vaneet Aggarwal
We propose a community-aware divide-and-conquer framework that involves (i) learning the inherent community structure of the social network, (ii) generating candidate solutions by solving the influence maximization problem for each community, and (iii) selecting the final set of seed nodes using a novel progressive budgeting scheme.
no code implementations • 16 Nov 2020 • Mridul Agarwal, Vaneet Aggarwal, Christopher J. Quinn, Abhishek Umrawal
Additionally, our algorithm works on correlated rewards of individual arms.
no code implementations • 29 Nov 2018 • Mridul Agarwal, Vaneet Aggarwal, Christopher J. Quinn, Abhishek K. Umrawal
Many real-world problems like Social Influence Maximization face the dilemma of choosing the best $K$ out of $N$ options at a given time instant.
no code implementations • 9 Apr 2012 • Christopher J. Quinn, Negar Kiyavash, Todd P. Coleman
We show that under appropriate conditions, it is unique and consistent with another type of graphical model, the directed information graph, which is based on a generalization of Granger causality.