803 citations · 2.6k across the 256 of their papers we have counts for
38 papers · 1 filter
Distributed Mixture-of-Agents for Edge Inference with Large Language Models
Purbesh Mitra, Priyanka Kaswan, Sennur Ulukus
Mixture-of-Agents (MoA) has recently been proposed as a method to enhance performance of large language models (LLMs), enabling multiple individual LLMs to work together for collab…
Efficient Semantic Communication Through Transformer-Aided Compression
Matin Mortaheb, Mohammad A. Amir Khojastepour, Sennur Ulukus
Transformers, known for their attention mechanisms, have proven highly effective in focusing on critical elements within complex data. This feature can effectively be used to addre…
Double Spending Analysis of Nakamoto Consensus for Time-Varying Mining Rates with Ruin Theory
Mustafa Doger, Sennur Ulukus, Nail Akar
Theoretical guarantees for double spending probabilities for the Nakamoto consensus under the -deep confirmation rule have been extensively studied for zero/bounded network dela…
Byzantine-Eavesdropper Alliance: How to Achieve Symmetric Privacy in Quantum -Secure -Byzantine -Eavesdropped -Unresponsive -Colluding PIR?
Mohamed Nomeir, Alptug Aytekin, Sennur Ulukus
We consider the quantum \emph{symmetric} private information retrieval (QSPIR) problem in a system with databases and messages, with unresponsive servers, -colluding…
Private Counterfactual Retrieval With Immutable Features
Shreya Meel, Pasan Dissanayake, Mohamed Nomeir +2
In a classification task, counterfactual explanations provide the minimum change needed for an input to be classified into a favorable class. We consider the problem of privately r…
Low-Latency Task-Oriented Communications with Multi-Round, Multi-Task Deep Learning
Yalin E. Sagduyu, Tugba Erpek, Aylin Yener +1
In this paper, we address task-oriented (or goal-oriented) communications where an encoder at the transmitter learns compressed latent representations of data, which are then trans…
Joint Age-State Belief is All You Need: Minimizing AoII via Pull-Based Remote Estimation
Ismail Cosandal, Sennur Ulukus, Nail Akar
Age of incorrect information (AoII) is a recently proposed freshness and mismatch metric that penalizes an incorrect estimation along with its duration. Therefore, keeping track of…
Age of Gossip With Time-Varying Topologies
Arunabh Srivastava, Thomas Jacob Maranzatto, Sennur Ulukus
We consider a gossiping network, where a source node sends updates to a network of gossiping nodes. Meanwhile, the connectivity topology of the gossiping network changes over t…
Age-: Communication-Efficient Federated Learning Using Age Factor
Matin Mortaheb, Priyanka Kaswan, Sennur Ulukus
Federated learning (FL) is a collaborative approach where multiple clients, coordinated by a parameter server (PS), train a unified machine-learning model. The approach, however, s…
Scheduling Policies in a Multi-Source Status Update System with Dedicated and Shared Servers
Sahan Liyanaarachchi, Sennur Ulukus, Nail Akar
Use of multi-path network topologies has become a prominent technique to assert timeliness in terms of age of information (AoI) and to improve resilience to link disruptions in com…
Private Counterfactual Retrieval
Mohamed Nomeir, Pasan Dissanayake, Shreya Meel +2
Transparency and explainability are two extremely important aspects to be considered when employing black-box machine learning models in high-stake applications. Providing counterf…
Age of Gossip with the Push-Pull Protocol
Arunabh Srivastava, Thomas Jacob Maranzatto, Sennur Ulukus
We consider a wireless network where a source generates packets and forwards them to a network containing nodes. The nodes in the network use the asynchronous push, pull or pus…
Mobility in Age-Based Gossip Networks
Arunabh Srivastava, Sennur Ulukus
We consider a gossiping network where a source forwards updates to a set of gossiping nodes that are placed in an arbitrary graph structure and gossip with their neighbors. In…
Age of Gossip in Networks with Multiple Views of a Source
Kian J. Khojastepour, Matin Mortaheb, Sennur Ulukus
We consider the version age of information (AoI) in a network where a subset of nodes act as sensing nodes, sampling a source that in general can follow a continuous distribution.…
Modeling Interfering Sources in Shared Queues for Timely Computations in Edge Computing Systems
Nail Akar, Melih Bastopcu, Sennur Ulukus +1
Most existing stochastic models on age of information (AoI) focus on a single shared server serving status update packets from sources where each packet update stream is Pois…
6G at : The Future of Cislunar Communications
Sahan Liyanaarachchi, Stavros Mitrolaris, Purbesh Mitra +1
What will the future of cislunar communications be? The ever-expanding horizons of the space exploration missions, and the need for establishing sustainable space communication and…
Multi-Threshold AoII-Optimum Sampling Policies for CTMC Information Sources
Ismail Cosandal, Nail Akar, Sennur Ulukus
We study push-based sampling and transmission policies for a status update system consisting of a general finite-state continuous-time Markov chain (CTMC) information source with k…
Cyclic Scheduler Design for Minimizing Age of Information in Massive Scale Networks Susceptible to Packet Errors
Sahan Liyanaarachchi, Sennur Ulukus, Nail Akar
In multi-source status update systems, sources need to be scheduled appropriately to maintain timely communication between each of the sources and the monitor. A cyclic schedule is…
Deep Learning Based Joint Multi-User MISO Power Allocation and Beamforming Design
Cemil Vahapoglu, Timothy J. O'Shea, Tamoghna Roy +1
The evolution of fifth generation (5G) wireless communication networks has led to an increased need for wireless resource management solutions that provide higher data rates, wide…
Network Connectivity--Information Freshness Tradeoff in Information Dissemination Over Networks
Arunabh Srivastava, Sennur Ulukus
We consider a gossip network consisting of a source generating updates and nodes connected according to a given graph structure. The source keeps updates of a process, that mig…
CAFe: Cost and Age aware Federated Learning
Sahan Liyanaarachchi, Kanchana Thilakarathna, Sennur Ulukus
In many federated learning (FL) models, a common strategy employed to ensure the progress in the training process, is to wait for at least clients out of the total clients…
PoW Security-Latency under Random Delays and the Effect of Transaction Fees
Mustafa Doger, Sennur Ulukus, Nail Akar
Safety guarantees and security-latency problem of Nakamoto consensus have been extensively studied in the last decade with a bounded delay model. Recent studies have shown that PoW…
Transformer-Aided Semantic Communications
Matin Mortaheb, Erciyes Karakaya, Mohammad A. Amir Khojastepour +1
The transformer structure employed in large language models (LLMs), as a specialized category of deep neural networks (DNNs) featuring attention mechanisms, stands out for their ab…
Optimizing Profitability in Timely Gossip Networks
Priyanka Kaswan, Melih Bastopcu, Sennur Ulukus +2
We consider a communication system where a group of users, interconnected in a bidirectional gossip network, wishes to follow a time-varying source, e.g., updates on an event, in r…