Search Results for author: Salim El Rouayheb

Found 9 papers, 3 papers with code

The Entrapment Problem in Random Walk Decentralized Learning

1 code implementation30 Jul 2024 Zonghong Liu, Salim El Rouayheb, Matthew Dwyer

This paper explores decentralized learning in a graph-based setting, where data is distributed across nodes.

Self-Duplicating Random Walks for Resilient Decentralized Learning on Graphs

no code implementations16 Jul 2024 Maximilian Egger, Ghadir Ayache, Rawad Bitar, Antonia Wachter-Zeh, Salim El Rouayheb

We propose a decentralized algorithm called DECAFORK that can maintain the number of RWs in the graph around a desired value even in the presence of arbitrary RW failures.

Adaptive Stochastic Gradient Descent for Fast and Communication-Efficient Distributed Learning

no code implementations4 Aug 2022 Serge Kas Hanna, Rawad Bitar, Parimal Parag, Venkat Dasari, Salim El Rouayheb

Moreover, the results also show that the adaptive version is communication-efficient, where the amount of communication required between the master and the workers is less than that of non-adaptive versions.

Walk for Learning: A Random Walk Approach for Federated Learning from Heterogeneous Data

no code implementations1 Jun 2022 Ghadir Ayache, Venkat Dassari, Salim El Rouayheb

One of the main challenges of FL is the communication bottleneck between the nodes and the parameter server.

Federated Learning

Private Weighted Random Walk Stochastic Gradient Descent

no code implementations3 Sep 2020 Ghadir Ayache, Salim El Rouayheb

To speed up the convergence, we propose instead to study random walk based SGD in which a global model is updated based on a random walk on the graph.

Privacy Preserving

Mechanisms for Hiding Sensitive Genotypes with Information-Theoretic Privacy

no code implementations10 Jul 2020 Fangwei Ye, Hyunghoon Cho, Salim El Rouayheb

Motivated by the growing availability of personal genomics services, we study an information-theoretic privacy problem that arises when sharing genomic data: a user wants to share his or her genome sequence while keeping the genotypes at certain positions hidden, which could otherwise reveal critical health-related information.

Adaptive Distributed Stochastic Gradient Descent for Minimizing Delay in the Presence of Stragglers

no code implementations25 Feb 2020 Serge Kas Hanna, Rawad Bitar, Parimal Parag, Venkat Dasari, Salim El Rouayheb

One solution studied in the literature is to wait at each iteration for the responses of the fastest $k<n$ workers before updating the model, where $k$ is a fixed parameter.

Guess & Check Codes for Deletions, Insertions, and Synchronization

1 code implementation24 May 2017 Serge Kas Hanna, Salim El Rouayheb

We consider the problem of constructing codes that can correct $\delta$ deletions occurring in an arbitrary binary string of length $n$ bits.

Information Theory Information Theory

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