Search Results for author: Virginia Bordignon

Found 13 papers, 3 papers with code

Non-Asymptotic Performance of Social Machine Learning Under Limited Data

no code implementations15 Jun 2023 Ping Hu, Virginia Bordignon, Mert Kayaalp, Ali H. Sayed

This paper studies the probability of error associated with the social machine learning framework, which involves an independent training phase followed by a cooperative decision-making phase over a graph.

Classification Decision Making

Memory-Aware Social Learning under Partial Information Sharing

no code implementations25 Jan 2023 Michele Cirillo, Virginia Bordignon, Vincenzo Matta, Ali H. Sayed

We devise a novel learning strategy where each agent forms a valid belief by completing the partial beliefs received from its neighbors.

valid

Distributed Bayesian Learning of Dynamic States

no code implementations5 Dec 2022 Mert Kayaalp, Virginia Bordignon, Stefan Vlaski, Vincenzo Matta, Ali H. Sayed

This work studies networked agents cooperating to track a dynamical state of nature under partial information.

Dencentralized learning in the presence of low-rank noise

no code implementations18 Mar 2022 Roula Nassif, Virginia Bordignon, Stefan Vlaski, Ali H. Sayed

Observations collected by agents in a network may be unreliable due to observation noise or interference.

Optimal Aggregation Strategies for Social Learning over Graphs

no code implementations14 Mar 2022 Ping Hu, Virginia Bordignon, Stefan Vlaski, Ali H. Sayed

Adaptive social learning is a useful tool for studying distributed decision-making problems over graphs.

Decision Making

Social Opinion Formation and Decision Making Under Communication Trends

no code implementations4 Mar 2022 Mert Kayaalp, Virginia Bordignon, Ali H. Sayed

We show that agents can learn the true hypothesis even if they do not discuss it, at rates comparable to traditional social learning.

Decision Making

Learning from Heterogeneous Data Based on Social Interactions over Graphs

1 code implementation17 Dec 2021 Virginia Bordignon, Stefan Vlaski, Vincenzo Matta, Ali H. Sayed

In the proposed social machine learning (SML) strategy, two phases are present: in the training phase, classifiers are independently trained to generate a belief over a set of hypotheses using a finite number of training samples; in the prediction phase, classifiers evaluate streaming unlabeled observations and share their instantaneous beliefs with neighboring classifiers.

Decision Making

Hidden Markov Modeling over Graphs

no code implementations26 Nov 2021 Mert Kayaalp, Virginia Bordignon, Stefan Vlaski, Ali H. Sayed

This work proposes a multi-agent filtering algorithm over graphs for finite-state hidden Markov models (HMMs), which can be used for sequential state estimation or for tracking opinion formation over dynamic social networks.

Deception in Social Learning

no code implementations26 Mar 2021 Konstantinos Ntemos, Virginia Bordignon, Stefan Vlaski, Ali H. Sayed

Then, we will explain that it is possible for such attacks to succeed by showing that strategies exist that can be adopted by the malicious agents for this purpose.

Social learning under inferential attacks

no code implementations26 Oct 2020 Konstantinos Ntemos, Virginia Bordignon, Stefan Vlaski, Ali H. Sayed

A common assumption in the social learning literature is that agents exchange information in an unselfish manner.

Network Classifiers Based on Social Learning

no code implementations23 Oct 2020 Virginia Bordignon, Stefan Vlaski, Vincenzo Matta, Ali H. Sayed

Combination over time means that the classifiers respond to streaming data during testing and continue to improve their performance even during this phase.

Partial Information Sharing over Social Learning Networks

1 code implementation24 Jun 2020 Virginia Bordignon, Vincenzo Matta, Ali H. Sayed

Instead of sharing the entirety of their beliefs, this work considers the case in which agents will only share their beliefs regarding one hypothesis of interest, with the purpose of evaluating its validity, and draws conditions under which this policy does not affect truth learning.

Social Learning with Partial Information Sharing

1 code implementation30 Oct 2019 Virginia Bordignon, Vincenzo Matta, Ali H. Sayed

This work studies the learning abilities of agents sharing partial beliefs over social networks.

Signal Processing Multiagent Systems

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