Imperial College London

Professor Emil Lupu

Faculty of EngineeringDepartment of Computing

Professor of Computer Systems
 
 
 
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Contact

 

e.c.lupu Website

 
 
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Location

 

564Huxley BuildingSouth Kensington Campus

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Summary

 

Publications

Publication Type
Year
to

237 results found

Zhu YM, Keoh SL, Sloman M, Lupu E, Zhang Y, Dulay N, Pryce Net al., 2008, Finger: An Efficient Policy System for Body Sensor Networks, 5th IEEE International Conference on Mobile Ad-Hoc and Sensor Systems, Publisher: IEEE, Pages: 428-433

Body sensor networks (BSNs) for healthcare put more emphasis on security and adaptation to changes in context and application requirement. Policy-based management enables flexible adaptive behaviour by supporting dynamic loading, enabling and disabling of policies without shutting down nodes. This overcomes many of the limitations of sensor operating systems, such as TinyOS, which do not support dynamic modification of code. Alternative schemes for network adaptation, such as networking programming, suffer from high communication cost and operational interruption. In addition, the policy-driven approach enables fine-grained access control through specifying authorization policies. This paper presents an efficient policy system called Finger which enables policy interpretation and enforcement on distributed sensors to support sensor level adaptation and fine-grained access control. It features support for dynamic management of policies, minimization of resources usage, high responsiveness and node autonomy. The policy system is integrated as a TinyOS component, exposing simple, well-defined interfaces which can easily be used by application developers. The system performance in terms of processing latency and resource usage is evaluated.

Conference paper

Brodie C, George D, Karat C-M, Karat J, Lobo J, Beigi M, Wang X, Calo SB, Verma DC, Lupu E, Sloman M, Schaeffer-Filho Aet al., 2008, The Coalition Policy Management Portal for Policy Authoring, Verification, and Deployment., IEEE International Symposium on Policies for Distributed Systems and Networks (Policy 08), Publisher: IEEE Computer Society, Pages: 247-249

Conference paper

Bandara A, Damianou N, Lupu EC, Sloman M, Dulay Net al., 2007, Policy Based Management, Handbook of Network and System Administration, Editors: Burgess, Bergstra, Publisher: Elsevier, ISBN: 978-0-444-52198-9

This chapter surveys the available specification approaches for security, management, and enterprise collaboration policies. Policies are rules governing the choices in behavior of a system. They are often used as a means of implementing flexible and adaptive systems for management of Internet services, distributed systems, and security systems. There is also a need for a common specification of security policy for large-scale, multi-organizational systems, where access control is implemented in a variety of heterogeneous components. Policy-based approaches to systems management are gaining widespread interest because they allow the separation of the rules that govern the behavioral choices of a system from the functionality provided by that system. This means that it is possible to adapt the behavior of a system without the need to recode any of the underlying functionality; and changes can be applied without the need to stop and restart the system. Such features provide system administrators with the capability to manage systems in a very flexible manner. A common theme across the policy specification notations presented here is that they are focused in a single functional area-routing, access control, or management, not a combination of them. At present, authorizations and event-condition-action rules are the predominant paradigms used in policy-based management, although the latter come in slightly different flavors. Implementation platforms have slowly matured in recent years and increasing work focuses on formal analysis and refinement of policies.

Book chapter

Heeps S, Sventek J, Dulay N, Filho AES, Lupu E, Sloman M, Strowes Set al., 2007, Dynamic ontology mapping for interacting autonomous systems, 2nd International Workshop on Self-Organizing Systems, Publisher: Springer, Pages: 255-263

With the emergence of mobile and ubiquitous computing environments, there is a requirement to enable collaborative applications between these environments. As many of these applications have been designed to operate in isolation, making them work together is often complicated by the semantic and ontological differences in the meta-data describing the data to be shared. Typical approaches to overcoming ontological differences require the presence of a third party administrator, an approach incompatible with autonomous systems. This paper presents an approach to automatic ontology mapping suitable for deployment in autonomous, interacting systems for a class of collaborative application. The approach facilitates the collaboration of application-level data collections by identifying areas of ontological conflict and using meta-data values associated with those collections to establish commonality. A music sharing application has been developed to facilitate the sharing of music between peers.

Conference paper

Bandara A, Lobo J, Calo S, Lupu E, Russo A, Sloman Met al., 2007, Toward a Formal Characterization of Policy Specification & Analysis, Annual Conference of ITA (ACITA), Pages: 1-9

Conference paper

Lupu E, Asmare E, Dulay N, Sloman Met al., 2007, Towards Self-managing Unmanned Autonomous Vehicles, Systems Engineering for Autonomous Systems Defence Technology Centre Conference, Edinburgh, UK

Conference paper

Schaeffer Filho A, Lupu E, 2007, Abstractions to Support Interactions between Self-Managed Cells, 1st International Conference on Autonomous Infrastructure, Management and Security (AIMS), Publisher: Springer, Pages: 160-163

Management of pervasive systems cannot rely on human intervention nor centralised decision-making functions due to their complex and intrinsically mobile nature. In previous work, we proposed the concept of a self-managed cell (SMC) as an architectural pattern for\r\nbuilding ubiquitous applications. A SMC consists of hardware and software components that form an autonomous administrative domain. SMCs may be realised at different scales, from body-area networks, to an entire room or larger settings. However, to scale to larger systems it is necessary for SMCs to collaborate with each other, to federate or compose in larger SMC structures. We describe here the main abstractions we have defined and explore future directions towards this goal.

Conference paper

Twidle K, Lupu E, 2007, Ponder2 - Policy-based self managed cells, 1st International Conference on Autonomous Infrastructure,, Management and Security, Publisher: SPRINGER-VERLAG BERLIN, Pages: 230-230, ISSN: 0302-9743

Conference paper

Keoh SL, Twidle K, Pryce N, Schaeffer-Filho AE, Lupu E, Dulay N, Sloman M, Heeps S, Strowes S, Sventek J, Katsiri Eet al., 2007, Policy-based management for body-sensor networks, 4th International Workshop on Wearable and Implantable Body Sensor Networks (BSN 2007), Publisher: SPRINGER, Pages: 92-+, ISSN: 1680-0737

Conference paper

Tuptuk N, Lupu E, 2007, Risk based authorisation for Mobile ad hoc networks, 1st International Conference on Autonomous Infrastructure,, Management and Security, Publisher: SPRINGER-VERLAG BERLIN, Pages: 188-+, ISSN: 0302-9743

Conference paper

Bandara AK, Russo A, Lupu EC, 2007, Towards learning privacy policies, 8th IEEE International Workshop on Policies for Distributed Systems and Networks, Publisher: IEEE COMPUTER SOC, Pages: 274-274

Conference paper

Asmare E, Dulay N, Lupu E, Sloman M, Calo S, Lobo Jet al., 2007, Secure dynamic community establishment in coalitions, IEEE Military Communications Conference (MILCOM 2007), Publisher: IEEE, Pages: 3105-+, ISSN: 2155-7578

Conference paper

Keoh SL, Dulay N, Lupu E, Twidle K, Schaeffer-Filho AE, Sloman M, Heeps S, Strowes S, Sventek Jet al., 2007, Self-Managed Cell: A middleware for managing body-sensor networks, 4th Annual International Conference on Mobile and Ubiquitous Systems (MOBIQUITOUS 2007), Publisher: IEEE, Pages: 177-+

Conference paper

Schaeffer A, Lupu E, Dulay N, Keoh SL, Twidle K, Sloman M, Heeps S, Strowes S, Sventek Jet al., 2007, Towards supporting interactions between self-managed cells, 1st IEEE International Conference on Self-Adaptive and Self-Organizing Systems (SASO 2007), Publisher: IEEE COMPUTER SOC, Pages: 224-233

Management in pervasive systems cannot rely on human intervention or centralised decision-making functions. It must be devolved, based on local decision-making and feedback control-loops embedded in autonomous components. We have previously proposed the self-managed cell (SMC) as an architectural pattern for building ubiquitous applications, where a SMC consists of hardware and software components that form an autonomous administrative domain. SMCs may be realised at different scales, from. body-area networks for health monitoring, to an entire room or larger distributed settings. However to scale to larger systems, SMCs must collaborate with each other and federate or compose in larger SMC structures. This paper discusses requirements for interactions between SMCs and proposes key abstractions and protocols for realising peer-to-peer and composition interactions. These enable SMCs to exchange data, react to external events and exchange policies that govern their collaboration. Dynamically customisable interfaces are used for encapsulation and interaction mediation. Although the examples used here are based on healthcare scenarios, the principles and abstractions described in the paper are more generally applicable.

Conference paper

Lupu E, Dulay N, Sventek J, Sloman Met al., 2007, Autonomous pervasive systems and the policy challenges of a small world!, 8th IEEE International Workshop on Policies for Distributed Systems and Networks, Pages: 3-7

Pervasive systems are the subject of intensifying research efforts and their applications range from health monitoring and intelligent homes, to location aware services, unmanned vehicles and city-wide pervasive infrastructures. Although application-specific solutions have been proposed, their design has often raised additional challenges. This paper discusses the use of Autonomous Pervasive Systems as a fertile testbed for policy-based adaptation and for integrating techniques that span across conventional subject boundaries. Additionally, we present the Self- Managed Cell architectural pattern for realizing policy-driven Autonomous Pervasive Systems and discuss the design of the Ponder2 policy service.

Conference paper

Twidle K, Lupu E, Dulay N, Keoh S-L, Sloman MS, Schaeffer-Filho A Eet al., 2006, Ponder2: Policy-based Management in Autonomous Ubiquitous Systems

Software

Strowes S, Badr N, Dulay N, Heeps S, Lupu EC, Sloman M, Sventek Jet al., 2006, An Event Service Supporting Autonomic Management of Ubiquitous Systems for e-Health, Intl. Workshop on Distributed Event-Based Systems

Conference paper

Asmare EA, Dulay N, Kim H, Lupu EC, Sloman Met al., 2006, Management Architecture and Mission Specification for Unmanned Autonomous Vehicles, Systems Engineering for Autonomous Systems Defence Technology Centre Conference, Edinburgh, UK

Conference paper

Asmare EA, Dulay N, Kim H, Lupu EC, Sloman Met al., 2006, Management Architecture and Mission Specification for Unmanned Autonomous Vehicles, Systems Engineering for Autonomous Systems Defence Technology Centre Conference, Edinburgh, UK

Conference paper

Strowes S, Badr N, Dulay N, Heeps S, Lupu EC, Sloman M, Sventek Jet al., 2006, An Event Service Supporting Autonomic Management of Ubiquitous Systems for e-Health, Intl. Workshop on Distributed Event-Based Systems

Conference paper

Bandara A, Lupu EC, Russo A, Dulay N, Sloman M, Flegkas P, Charalambides M, Pavlou Get al., 2006, Policy Refinement for DiffServ Quality of Service Management (2006), 9th IFIP/IEEE Intl. Symp. on Integrated Management (IM 2005), Publisher: IEEE

Conference paper

Charalambides M, Flegkas P, Pavlou G, Bandara A, Dulay N, Lupu EC, Rubio-Loyola J, Russo A, Sloman Met al., 2006, Dynamic Policy Analysis and Conflict Resolution for DiffServ Quality of Service Management (2006), IFIP/IEEE Network Operations and Management Symposium (NOMS 2006), Publisher: IEEE Computer Society

Conference paper

Bandara A, Lupu EC, Russo A, Dulay N, Sloman M, Flegkas P, Charalambides M, Pavlou Get al., 2006, Policy Refinement for DiffServ Quality of Service Management (2006), IEEE Transactions on Network and Service Management, Vol: 3, Pages: 2-13

Journal article

Charalambides M, Flegkas P, Pavlou G, Bandara A, Dulay N, Lupu EC, Rubio-Loyola J, Russo A, Sloman Met al., 2006, Dynamic Policy Analysis and Conflict Resolution for DiffServ Quality of Service Management (2006), IFIP/IEEE Network Operations and Management Symposium (NOMS 2006), Publisher: IEEE Computer Society

Conference paper

Charalambides M, Flegkas P, Pavlou G, Bandara A, Dulay N, Lupu EC, Rubio-Loyola J, Russo A, Sloman Met al., 2006, Dynamic Policy Analysis and Conflict Resolution for DiffServ Quality of Service Management (2006), IFIP/IEEE Network Operations and Management Symposium (NOMS 2006), Publisher: IEEE Computer Society

Conference paper

Bandara AK, Kakas A, Lupu EC, Russo Aet al., 2006, Using argumentation logic for firewall policy specification and analysis, 17th IFIP/IEEE International Workshop on Distributed Systems - Operations and Management (DSOM 2006), Publisher: SPRINGER-VERLAG BERLIN, Pages: 185-196, ISSN: 0302-9743

Conference paper

Bandara A, Lupu EC, Russo A, Dulay N, Sloman M, Flegkas P, Charalambides M, Pavlou Get al., 2006, Policy refinement for DiffServ quality of service management, IEEE eTransactions on Network and Service Management, Vol: 3, Pages: 2-13

Journal article

Dulay N, Lupu EC, Sloman M, Bacon J, Ingram D, Moody Ket al., 2005, CareGrid: Autonomous Trust Domains for Healthcare Applications

Journal article

Arenas A, Djordjevic I, Claessens J, Dimitrakos T, Geuer-Pollmann C, Titkov L, Lupu EC, Tuptuk N, Schubert L, Wesner Set al., 2005, Trust and Security in Virtual Organisations, 6th IFIP Working Conference on Virtual Enterprises (PRO-VE 2005)

Conference paper

Dulay N, Heeps S, Lupu EC, Sharma O, Sloman M, Sventek Jet al., 2005, Autonomic Management for Ubiquitous e-Health Systems, UK e-Science Programme All Hands Meeting 2005 (AHM2005)

Conference paper

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