Listar por tema "Distributed systems"

Cherry: A Distributed Task-Aware Shuffle Service for Serverless Analytics

Nikitas N., Konstantinou I., Kalogeraki V., Koziris N. (2021)

While there has been a lot of effort in recent years in optimising Big Data systems like Apache Spark and Hadoop, the all-to-all transfer of data between a MapReduce computation step, i.e., the shuffle data mechanism between ...

Cloud computing: Distributed internet computing for IT and scientific research

Dikaiakos, M. D.; Katsaros, D.; Mehra, P.; Pallis, G.; Vakali, A. (2009)

Cloud computing is location agnostic and provides dynamically scalable and virtualized resources as services over the Internet. Here, the authors provide broad introductory definitions to cloud computing concepts. Articles ...

A comparison of distributed spatial data management systems for processing distance join queries

García-García F., Corral A., Iribarne L., Mavrommatis G., Vassilakopoulos M. (2017)

Due to the ubiquitous use of spatial data applications and the large amounts of spatial data that these applications generate, the processing of large-scale distance joins in distributed systems is becoming increasingly ...

Distribute, store and retrieve management policies in wireless ad-hoc networks using the content delivery publish/subscribe paradigm

Sourlas, V.; Flegkas, P.; Paschos, G. S.; Tassiulas, L. (2009)

Policy management is a management paradigm that has been extensively studied for the case of fixed networks but limited work can be found for migrating it to mobile environments. It enables dynamic adaptation of the network ...

An Event-Based Framework for the Specification and Runtime Checking of Timing Constraints in Wireless Sensor and Actuator Networks

Grigoropoulos N., Lalis S., Koutsoubelias M. (2015)

Distributed monitoring and control applications running on top of wireless sensor and actuator networks need to be developed in a structured and flexible way. Such applications also have strict timing constraints, which ...

Improved genetic algorithms and list scheduling techniques for independent task scheduling in distributed systems

Loukopoulos, T.; Lampsas, P.; Sigalas, P. (2007)

Given a set of tasks with certain characteristics, e.g., data size, estimated execution time and a set of processing nodes with their own parameters, the goal of task scheduling is to allocate tasks at nodes so that the ...

Investigating the replica transfer scheduling problem

Loukopoulos, T.; Tziritas, N.; Lampsas, P.; Lalis, S. (2006)

The Replica Placement Problem (RPP) aims at selecting the nodes for duplicating data objects in order to optimize their access. Even though a lot of work already exists on RPP, the issue of implementing the resulting ...

National survey of morbidity and risk factors (EMENO): Protocol for a health examination survey representative of the adult Greek population

Touloumi G., Karakatsani A., Karakosta A., Sofianopoulou E., Koustenis P., Gavana M., Alamanos Y., Kantzanou M., Konstantakopoulos G., Chryssochoou X., Benos A., Vantarakis A., Hadjichristodoulou C., Chlouverakis G., Trypsianis G., Voulgari P.V., Makrilakis K., Liatis S., Stergiou G. (2019)

Background: Main causes of death in Greece are cardiovascular diseases (CVDs), malignant neoplasms, respiratory diseases, and road traffic crashes. To assess the population health status, monitor health systems, and adjust ...