Πλοήγηση ανά Θέμα "Mobile agents"

Agent placement in wireless embedded systems: Memory space and energy optimizations

Tziritas, N.; Loukopoulos, T.; Lalis, S.; Lampsas, P. (2010)

Embedded applications can be structured in terms of mobile agents that are flexibly installed on available nodes. In wireless systems, such nodes typically have limited battery and memory resources; therefore it is important ...

Black virus decontamination of synchronous ring networks by initially scattered mobile agents

Giachoudis N., Kokkou M., Markou E. (2020)

We study the Black Virus Decontamination problem in ring topologies for initially scattered mobile agents. In this problem a number of mobile agents operate in a network where one of its nodes u is hostile (contaminated) ...

Broadcasting with Mobile Agents in Dynamic Networks

Das S., Giachoudis N., Luccio F.L., Markou E. (2021)

We study the standard communication problem of broadcast for mobile agents moving in a network. The agents move autonomously in the network and can communicate with other agents only when they meet at a node. In this model, ...

Dangerous graphs

Markou E., Shi W. (2019)

Anomalies and faults are inevitable in computer networks, today more than ever before. This is due to the large scale and dynamic nature of the networks used to process big data and to the ever-increasing number of ad-hoc ...

Different speeds suffice for rendezvous of two agents on arbitrary graphs

Kranakis E., Krizanc D., Markou E., Pagourtzis A., Ramírez F. (2017)

We consider the rendezvous problem for two robots on an arbitrary connected graph with n vertices and all its edges of length one. Two robots are initially located on two different vertices of the graph and can traverse ...

Gathering of robots in a grid with mobile faults

Das S., Giachoudis N., Luccio F.L., Markou E. (2019)

The gathering of two or more agents in a graph is an important problem in the area of distributed computing and has been extensively studied especially for the fault free scenario. In this paper we consider the mobile ...

Gathering of robots in a ring with mobile faults

Das S., Focardi R., Luccio F.L., Markou E., Squarcina M. (2019)

This paper studies the well-known problem of gathering multiple mobile agents moving in a graph, but unlike previous results, we consider the problem in the presence of an adversarial mobile entity which we call the malicious ...

Gathering of robots in a ring with mobile faults

Das S., Focardi R., Luccio F.L., Markou E., Moro D., Squarcina M. (2016)

In this paper, we consider the problem of gathering mobile agents in a graph in the presence of mobile faults that can appear anywhere in the graph. Faults are modeled as a malicious mobile agent that attempts to block the ...

A health care monitoring system that uses ontology agents

Christopoulou S.C., Kotsilieris T., Anagnostopoulos I. (2016)

The healthcare domain is mission critical and vast research efforts keep being funded in order to improve life quality of people. Health management consists of specific cooperation intensive activities, while medical ...

Improved periodic data retrieval in asynchronous rings with a faulty host

Bampas, E.; Leonardos, N.; Markou, E.; Pagourtzis, A.; Petrolia, M. (2014)

The exploration problem has been extensively studied in unsafe networks containing malicious hosts of a highly harmful nature, called black holes, which completely destroy mobile agents that visit them. In a recent work, ...

Interconnecting distributed virtual worlds using Metabots: Performance evaluation against the traditional client-server model

Kotsilieris, T.; Karetsos, G. T.; Anagnostopoulos, I.; Dimopoulou, N. A. (2014)

Virtual Worlds evolution is breaking the barriers of virtual isolation, thus allowing users to participate in geographically dispersed and culturally diverse places. At the same time, mobile agents have been established ...