4,845 Hits in 7.0 sec

Performance modelling of Event-Condition-Action rules in P2P networks

George Papamarkos, Alexandra Poulovassilis, Peter T. Wood
2011 Journal of computer and system sciences (Print)  
This paper develops an analytical model for exploring the performance of processing Event-Condition-Action (ECA) rules in P2P environments, adopting as the main performance criterion the mean time required  ...  to complete all rule processing resulting from a top-level update submitted to one of the peers in the network.  ...  Event-Condition-Action (ECA) rules are one way of providing such functionality. An ECA rule has the general syntax on event if condition do actions.  ... 
doi:10.1016/j.jcss.2010.02.004 fatcat:tftf2ewhcraprdbsgjp4xdss3q

Event-Based Awareness Services for P2P Groupware Systems

2015 Informatica  
We describe the implementation of a superpeer P2P network on a Cloud platform and the provision of reliable awareness services (AaaS -Awareness as a Service) from the Cloud.  ...  We report on the outcomes of an empirical evaluation of the performance and scalability of the approach.  ...  This work has been partially supported by Spanish Research Project TIN2013-46181-C2-1-R COMMAS (Computational Models and Methods for Massive Structured Data).  ... 
doi:10.15388/informatica.2015.42 fatcat:y4gtb7gztzdfjfv2nkzoec4wya

Building Event-Based Services for Awareness in P2P Groupware Systems

Alexandra Poulovassilis, Fatos Xhafa
2013 2013 Eighth International Conference on P2P, Parallel, Grid, Cloud and Internet Computing  
groupware and awareness mechanisms in decentralized P2P systems: • achieving a consistent view of the groupware global state from the local states of the group members • issues inherent to P2P systems  ...  mechanisms in P2P systems have generally been implemented as part of applications, thus having the limitation of being application-dependent Motivation  ...  both stand-alone mobile peers and mobile peers that are attached to other fixed peers through lightweight mechanisms and summary services Computational Model  Each superpeer has Event-Condition-Action  ... 
doi:10.1109/3pgcic.2013.36 dblp:conf/3pgcic/PoulovassilisX13 fatcat:u7ptjklrmbganbacxwnll5jwiy

Using ECA rules to implement mobile query agents for fast-evolving pure P2P database systems

Verena Kantere, Aris Tsois
2005 Proceedings of the 6th international conference on Mobile data management - MEM '05  
A challenging issue in fast-evolving pure P2P networks is the design of an appropriate mechanism for processing queries.  ...  We are interested in P2P networks where peers are mobile and own a database. In this dynamic context the usage of a Mobile Agent framework appears very promising.  ...  This leads to the designation of a P2P system architecture that uses an active database component and a mobile agent structure that is based on Event-Condition-Action (ECA) rules.  ... 
doi:10.1145/1071246.1071271 dblp:conf/mdm/KantereT05 fatcat:y6tugeoccjavjc7trulol7dwwy

The hyperion project

Marcelo Arenas, Vasiliki Kantere, Anastasios Kementsietsidis, Iluju Kiringa, Renée J. Miller, John Mylopoulos
2003 SIGMOD record  
Such a network works in a way similar to conventional multidatabases.  ...  These systems team up to build a network of nodes (peers) that coordinate at run time most of the typical DBMS tasks such as the querying, updating, and sharing of data.  ...  To enforce this rule, and other similar business rules, we propose a mechanism which uses event-condition-action (ECA) rules with the distinctive characteristic that events, conditions and actions in rules  ... 
doi:10.1145/945721.945733 fatcat:o5lzhvlqxvcd3j5m6vgznhcksy

Requirements for Distributed Event-Based Awareness in P2P Groupware Systems

Fatos Xhafa, Alex Poulovassilis
2010 2010 IEEE 24th International Conference on Advanced Information Networking and Applications Workshops  
As a first step, we identify the major requirements for such an event-based awareness approach, including dynamics of events, genericity of events, lightweight mechanisms, automation via the use of rules  ...  We then propose an abstract model for achieving these requirements and we discuss how this model can support awareness of collaboration in mobile teams.  ...  ACKNOWLEDGEMENTS Fatos Xhafa's research work is supported by General Secretariat of Universities of the Ministry of Education, Spain.  ... 
doi:10.1109/waina.2010.112 dblp:conf/aina/XhafaP10 fatcat:iirrxsl6h5d5bmwgqhybmzk53u

Towards a Framework for Dynamic Verification of Peer-to-Peer Systems

Theofrastos Koulouris, George Spanoudakis, Theocharis Tsigkritis
2007 Second International Conference on Internet and Web Applications and Services (ICIW'07)  
In this paper, we introduce a framework that supports the dynamic verification of P2P systems.  ...  Ensuring dependability and security of Peer-to-Peer (P2P) systems is an intricate task due to the autonomous and volatile nature of peers and the decentralization that characterizes such systems.  ...  On the other hand, recommendable rules are rules that are recommended for checking but may be conditionally disregarded if deemed necessary for system performance reasons.  ... 
doi:10.1109/iciw.2007.63 dblp:conf/iciw/KoulourisST07 fatcat:elryhp6i3vccjiddaqkkvtsbg4

A peer to peer agent coordination framework for IHE based cross-community health record exchange

Visara Urovi, Alex C. Olivieri, Stefano Bromuri, Nicoletta Fornara, Michael I. Schumacher
2013 Proceedings of the 28th Annual ACM Symposium on Applied Computing - SAC '13  
Every health organisation represents a community in a P2P network and uses a set of autonomous agents and a set of distributed coordination rules to coordinate the agents in the search of specific health  ...  In order to illustrate the scalability of our approach, we evaluate the proposed solution in distributed settings.  ...  The reaction rules syntax is defined as follows: reaction(action, conditions, react). where action is an operation made in a tuple centre (such as out(tuple)), conditions specify the conditions that should  ... 
doi:10.1145/2480362.2480617 dblp:conf/sac/UroviOBFS13 fatcat:q352ucxgxjhglekd6etomptnji

Awareness in P2P Groupware Systems: A Convergence of Contextual Computing, Social Media and Semantic Web

Fatos Xhafa, Alex Poulovassilis
2011 2011 International Conference on Emerging Intelligent Data and Web Technologies  
Each superpeer has Event-Condition-Action (ECA) rule processing capabilities.  ...  Our Event-based Awareness Model in P2P Groupware Systems We propose an RDF-based superpeer network model [10, 20, 13] for supporting group awareness in P2P groupware systems.  ... 
doi:10.1109/eidwt.2011.42 dblp:conf/eidwt/XhafaP11 fatcat:zexmesbpszg6vdsg4gwz3u6r7a

A semantic publish-subscribe coordination framework for IHE based cross-community health record exchange

Visara Urovi, Alex C. Olivieri, Stefano Bromuri, Nicoletta Fornara, Michael I. Schumacher
2013 ACM SIGAPP Applied Computing Review  
A set of autonomous agents and a set of distributed coordination rules are used to coordinate the agents in the search of specific health records.  ...  The framework enables health organizations that comply with the existing interoperability standards, as proposed by the Integrating Healthcare Enterprise (IHE), to dynamically connect in a P2P network.  ...  This is the author's version of the work. It is posted here by permission of ACM for your personal use. Not for redistribution.  ... 
doi:10.1145/2537728.2537732 fatcat:5qdg64ng5nag3j5lx3azy5b4oy

A Distributed Rule Mechanism for Multidatabase Systems [chapter]

Vasiliki Kantere, John Mylopoulos, Iluju Kiringa
2003 Lecture Notes in Computer Science  
We describe a mechanism based on distributed Event-Condition-Action (ECA) rules that supports data coordination in a multidatabase setting.  ...  The paper also presents a prototype implementation in a simulated environment as well as preliminary experimental results on its performance.  ...  The presented execution model used the decoupled coupling mode for both pairs of event-condition and condition-action in order to achieve asynchronous event and condition evaluation, and action execution  ... 
doi:10.1007/978-3-540-39964-3_6 fatcat:owowmsg7zjbmfg3athkybafywi

Rule-Based Distributed and Agent Systems [chapter]

Costin Bǎdicǎ, Lars Braubach, Adrian Paschke
2011 Lecture Notes in Computer Science  
The paper contains an overview of the roles played by rules and rule-based systems in distributed and multi-agent systems.  ...  These roles include an overview of traditional and newly emerging application areas as well as internal agent architectures and frameworks implementing these architectures.  ...  Papers [12] and [11] propose a distributed reasoning solution that could be used in ambient environments modeled as P2P networks of agent.  ... 
doi:10.1007/978-3-642-22546-8_3 fatcat:kflbpxqmxjannkl4ytcl6krpnq


Caroline Desprat, Jean-Pierre Jessel, Hervé Luga
2016 Proceedings of the 21st International Conference on Web3D Technology - Web3D '16  
of 3D dynamic content in a web browser via Web-RTC.  ...  Peer-to-peer (P2P) allows direct communication between teammates reducing response times during collaboration and decreasing server load, reducing the costs of providers. 3DEvent enables P2Passisted delivery  ...  In the future, we will aim to enhance P2P 3D data streaming using compression for collaborative and 3D content in real network conditions.  ... 
doi:10.1145/2945292.2945310 dblp:conf/vrml/DespratJL16 fatcat:jhk4vitkavfbvk757hud5wam6u

Loosely-Coupled Integration of CSCW Systems [chapter]

Roberta L. Gomes, Guillermo J. Hoyos Rivera, Jean Pierre Courtiat
2005 Lecture Notes in Computer Science  
Then different types of collaborative applications are usually applied in order to support group work.  ...  But in spite of being used to accomplish a common collaboration task, these applications are executed independently without getting any advantage of each other.  ...  Collaboration policies are a set of rules following a condition/action model.  ... 
doi:10.1007/11498094_4 fatcat:t3jhtkxjw5gmjoimjtmdfdw6pa

Bio-inspired monitoring of pervasive environments

Apostolos Malatras, Fei Peng, Beat Hirsbrunner
2011 2011 IEEE International Conference on Pervasive Computing and Communications Workshops (PERCOM Workshops)  
To mitigate the drawbacks brought by the inherent nature of pervasive environments, i.e. dynamicity, heterogeneity and scalability of the network infrastructure, we propose to employ P2P overlay networks  ...  In particular, we take advantage of bioinspired self-organization mechanisms to construct reliable P2P overlays and thus provide more robust and adaptive monitoring solutions.  ...  Policies, defined as event-condition-action rules, are utilized to indicate the necessary overlay configuration changes upon the occurence of specific context-driven events in the pervasive environment  ... 
doi:10.1109/percomw.2011.5766908 dblp:conf/percom/MalatrasPH11 fatcat:5pdepginpzex3l2ffurefpk4ou
« Previous Showing results 1 — 15 out of 4,845 results