no code implementations • 15 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.
no code implementations • 25 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.
no code implementations • 5 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.
no code implementations • 18 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.
no code implementations • 14 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.
no code implementations • 4 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.
1 code implementation • 17 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.
no code implementations • 26 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.
no code implementations • 26 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.
no code implementations • 26 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.
no code implementations • 23 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.
1 code implementation • 24 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.
1 code implementation • 30 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