Search Results for author: Sreenivas Gollapudi

Found 11 papers, 1 papers with code

Algorithms for $\ell_p$ Low-Rank Approximation

no code implementations ICML 2017 Flavio Chierichetti, Sreenivas Gollapudi, Ravi Kumar, Silvio Lattanzi, Rina Panigrahy, David P. Woodruff

We consider the problem of approximating a given matrix by a low-rank matrix so as to minimize the entrywise $\ell_p$-approximation error, for any $p \geq 1$; the case $p = 2$ is the classical SVD problem.

On the Learnability of Deep Random Networks

no code implementations8 Apr 2019 Abhimanyu Das, Sreenivas Gollapudi, Ravi Kumar, Rina Panigrahy

In this paper we study the learnability of deep random networks from both theoretical and practical points of view.

Adaptive Probing Policies for Shortest Path Routing

no code implementations NeurIPS 2020 Aditya Bhaskara, Sreenivas Gollapudi, Kostas Kollias, Kamesh Munagala

Inspired by traffic routing applications, we consider the problem of finding the shortest path from a source $s$ to a destination $t$ in a graph, when the lengths of the edges are unknown.

Beyond GNNs: A Sample Efficient Architecture for Graph Problems

no code implementations1 Jan 2021 Pranjal Awasthi, Abhimanyu Das, Sreenivas Gollapudi

Finally, we empirically demonstrate the effectiveness of our proposed architecture for a variety of graph problems.

Generalization Bounds

Online Learning under Adversarial Corruptions

no code implementations1 Jan 2021 Pranjal Awasthi, Sreenivas Gollapudi, Kostas Kollias, Apaar Sadhwani

We study the design of efficient online learning algorithms tolerant to adversarially corrupted rewards.

Multi-Armed Bandits

Robust Learning for Congestion-Aware Routing

no code implementations1 Jan 2021 Sreenivas Gollapudi, Kostas Kollias, Benjamin Plaut, Ameya Velingker

We consider the problem of routing users through a network with unknown congestion functions over an infinite time horizon.

valid

A Convergence Analysis of Gradient Descent on Graph Neural Networks

no code implementations NeurIPS 2021 Pranjal Awasthi, Abhimanyu Das, Sreenivas Gollapudi

Graph Neural Networks~(GNNs) are a powerful class of architectures for solving learning problems on graphs.

Online Learning and Bandits with Queried Hints

no code implementations4 Nov 2022 Aditya Bhaskara, Sreenivas Gollapudi, Sungjin Im, Kostas Kollias, Kamesh Munagala

For stochastic MAB, we also consider a stronger model where a probe reveals the reward values of the probed arms, and show that in this case, $k=3$ probes suffice to achieve parameter-independent constant regret, $O(n^2)$.

Congested Bandits: Optimal Routing via Short-term Resets

no code implementations23 Jan 2023 Pranjal Awasthi, Kush Bhatia, Sreenivas Gollapudi, Kostas Kollias

For the linear contextual bandit setup, our algorithm, based on an iterative least squares planner, achieves policy regret $\tilde{O}(\sqrt{dT} + \Delta)$.

When Are Two Lists Better than One?: Benefits and Harms in Joint Decision-making

1 code implementation22 Aug 2023 Kate Donahue, Sreenivas Gollapudi, Kostas Kollias

Surprisingly, we show that for multiple of noise models, it is optimal to set $k \in [2, n-1]$ - that is, there are strict benefits to collaborating, even when the human and algorithm have equal accuracy separately.

Decision Making

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