Normal 0

false false false

EN-US X-NONE X-NONE

Dear Sirs,

This is to draw your attention to

the contents of the latest issue of:

International Journal of Adaptive, Resilient and Autonomic Systems (IJARAS)

Official Publication of the Information Resources Management Association

Volume 3, Issue 3, July-September 2012

Published: Quarterly in Print and Electronically

ISSN: 1947-9220 EISSN: 1947-9239

Published by IGI Publishing, Hershey-New York, USA

www.igi-global.com/ijaras

Editor-in-Chief: Vincenzo De Florio, University of Antwerp and IBBT, Belgium

PAPER ONE

User Models for Adaptive Information Retrieval on the Web: Towards an Interoperable and Semantic Model

Max Chevalier (Université Toulouse 3 Paul Sabatier, IRIT, UMR 5505, France)

Christine Julien (Université Toulouse 3 Paul Sabatier, IRIT, UMR 5505, France)

Chantal Soulé-Dupuy (Université Toulouse 1 Capitole, IRIT, UMR 5505, France)

Searching information can be realized thanks to specific tools called Information Retrieval Systems IRS (also called “search engines”). To provide more accurate results to users, most of such systems offer personalization features. To do this, each system models a user in order to adapt search results that will be displayed. In a multi-application context (e.g., when using several search engines for a unique query), personalization techniques can be considered as limited because the user model (also called profile) is incomplete since it does not exploit actions/queries coming from other search engines. So, sharing user models between several search engines is a challenge in order to provide more efficient personalization techniques. A semantic architecture for user profile interoperability is proposed to reach this goal. This architecture is also important because it can be used in many other contexts to share various resources models, for instance a document model, between applications. It is also ensuring the possibility for every system to keep its own representation of each resource while providing a solution to easily share it.

To obtain a copy of the entire article, click on the link below.

http://www.igi-global.com/article/user-models-adaptive-information-retrieval...

To read a PDF sample of this article, click on the link below.

http://www.igi-global.com/viewtitlesample.aspx?id=69817&ptid=59408&t...

PAPER TWO

How to Trust: A Model for Trust Decision Making

Massimo Felici (University of Edinburgh, UK)

This paper concerns decision-making processes that rely on trust. In particular, it analyzes how different aspects of trust (e.g., trust, trustworthiness, trustworthy evidence) influence trust decisions, and acting on them eventually. It proposes a trust decision model that structures the analysis of contextualized trust problems. Rather than seeking a general definition of trust, this paper advocates the necessity to have a structured way to analyze and characterize situational trust problems systematically.

To obtain a copy of the entire article, click on the link below.

http://www.igi-global.com/article/trust-model-trust-decision-making/69818

To read a PDF sample of this article, click on the link below.

http://www.igi-global.com/viewtitlesample.aspx?id=69818&ptid=59408&t...

PAPER THREE

A Variable Context Model for Adaptable Service-Based Applications

Antonio Bucchiarone (Fondazione Bruno Kessler, Italy)

Cinzia Cappiello (Politecnico di Milano, Italy)

Elisabetta Di Nitto (Politecnico di Milano, Italy)

Barbara Pernici (Politecnico di Milano, Italy)

Alessandra Sandonini (Politecnico di Milano, Italy)

Service-based applications (SBAs) rely on the invocation of services. The use of the service paradigm usually guarantees a high level of flexibility. In fact, applications can be easily reconfigured in order to continuously offer functionalities also in dynamic execution environments. This happens by changing the service selection and their composition. This flexibility can be exploited to design adaptable SBAs able to react to events that could happen during the application lifecycle. The execution flow of adaptable SBAs automatically changes on the basis of the context in which they are executing. The context includes information ranging from the situation in which users access the service-based applications to the status of the components involved in the execution of such applications. In this paper the authors propose a way to use context information to adapt SBAs. In particular, their goal is to discuss the way in which the context should be defined and managed in order to be exploited in the various activities related to the adaptation of service-based applications.

To obtain a copy of the entire article, click on the link below.

http://www.igi-global.com/article/variable-context-model-adaptable-service/6...

To read a PDF sample of this article, click on the link below.

http://www.igi-global.com/viewtitlesample.aspx?id=69819&ptid=59408&t...

PAPER FOUR

RELADO: RELiable and ADaptive Opportunistic Routing Protocol for Wireless Mesh Networks

Raffaele Bruno (Institute of Informatics and Telematics of Consiglio Nazionale delle Ricerche, Italy)

Marco Conti (Institute of Informatics and Telematics of Consiglio Nazionale delle Ricerche, Italy)

Maddalena Nurchis (Institute of Informatics and Telematics of Consiglio Nazionale delle Ricerche, Italy)

Opportunistic routing is considered as one of the most promising techniques to effectively limit performance degradation in wireless mesh networks caused by unpredictable channel variations and high loss rates. This paradigm defers the selection of the next hop after the packet reception to take advantage of any opportunity provided by broadcast transmissions. Most of the existing opportunistic approaches base the forwarder selection on end-to-end principles. However, in multi-hop wireless environments the cost of a path is not uniformly distributed over space, nor constant over time, hence even two equal-cost paths might present significantly different link quality distributions one from the other. This encourages the use of localized context to implement a more accurate selection of the possible forwarders after each packet transmission. Hence, in this paper the authors propose RELADO, an adaptive opportunistic routing protocol able to efficiently combine end-to-end with local information to ensure transmission resilience across the network. With this flexibility, RELADO is able to reduce packet loss by ensuring the best trade-off between throughput maximization and packet progress. An extensive set of ns2 simulations confirms the potentiality of RELADO to improve network performance when compared to both legacy unicast and opportunistic routing protocols.

To obtain a copy of the entire article, click on the link below.

http://www.igi-global.com/article/relado-reliable-adaptive-opportunistic-rou...

To read a PDF sample of this article, click on the link below.

http://www.igi-global.com/viewtitlesample.aspx?id=69820&ptid=59408&t...

Paper Five

Dual Monitoring Communication for Self-Aware Network-on-Chip: Architecture and Case Study

Liang Guang (University of Turku, Finland)

Ethiopia Nigussie (University of Turku, Finland)

Juha Plosila (University of Turku, Finland)

Hannu Tenhunen (Royal Institute of Technology, Sweden)

Self-aware and adaptive Network-on-Chip (NoC) with dual monitoring networks is presented. Proper monitoring interface is an essential prerequisite to adaptive system reconfiguration in parallel on-chip computing. This work proposes a DMC (dual monitoring communication) architecture to support self-awareness on the NoC platform. One type of monitoring communication is integrated with data channel, in order to trace the run-time profile of data communication in high-speed on-chip networking. The other type is separate from the data communication, and is needed to report the run-time profile to the supervising monitor. Direct latency monitoring on mesochronous NoC is presented as a case study and is directly traced in the integrated communication with a novel latency monitoring table in each router. The latency information is reported by the separate monitoring communication to the supervising monitor, which reconfigures the system to adjust the latency, for instance by dynamic voltage and frequency scaling. With quantitative evaluation using synthetic traces and real applications, the effectiveness and efficiency of direct latency monitoring with DMC architecture is demonstrated. The area overhead of DMC architecture is estimated to be small in 65nm CMOS technology.

To obtain a copy of the entire article, click on the link below.

http://www.igi-global.com/article/dual-monitoring-communication-self-aware/6...

To read a PDF sample of this article, click on the link below.

http://www.igi-global.com/viewtitlesample.aspx?id=69821&ptid=59408&t...

*****************************************************

For full copies of the above articles, check for this issue of the International Journal of Adaptive, Resilient and Autonomic Systems (IJARAS) in your institution's library. This journal is also included in the IGI Global aggregated "InfoSci-Journals" database: http://www.igi-global.com/eresources/infosci-journals.aspx.

*****************************************************

CALL FOR PAPERS

Mission of IJARAS:

The mission of the International Journal of Adaptive, Resilient and Autonomic Systems (IJARAS) is to enhance the awareness of the crucial role of adaptability and resilience when systems are deployed in environments where change is the rule rather than the exception, in order to avoid situations where quality of service and quality of experience are strongly and negatively affected. IJARAS publishes novel results in resilience engineering, adaptive systems engineering, and dependability for researchers, practitioners, engineers, educators, and professionals.

Coverage of IJARAS:

Topics to be discussed in this journal include (but are not limited to) the following:

· Adaptive and context-aware multimedia

· Adaptive data integrity

· Adaptive data mining

· Adaptive fault models

· Adaptive fault-masking

· Adaptive fault-tolerance

· Adaptive routing

· Adaptive service-oriented computing

· Adaptive system models

· Adaptive user interfaces

· Analytical and simulation tools to measure a system’s ability to withstand faults and optimally re-adjust to new environments

· Architecture-based adaptation

· Autonomic applications

· Autonomic business process execution

· Autonomous and adaptive systems in robotics

· Conceptual models and paradigms to express change tolerance

· Design-time/run-time methods and tools to identify and enforce optimal trade-offs between energy consumption, performance, safety, and security

· Evolutionary and embryogenic approaches to autonomic computing, resilience, and adaptive systems

· Mechanisms to model, design, express, and develop adaptive, autonomic, and resilient systems

· Methods focusing on optimizing quality of experience

· Methods, models, and architectures to manage and express strategies and provisions for cross-layer adaptation

· Personalization

· Recovery-oriented computing

· Resilience engineering

· Scalable, maintainable, and cost-effective provisions located at all system levels to achieve adaptability and dependability

· Self-* systems

Interested authors should consult the journal's manuscript submission guidelines www.igi-global.com/ijaras.

All inquiries and submissions should be sent to:

Editor-in-Chief: Vincenzo De Florio at vincenzo.deflorio@gmail.com; vincenzo.deflorio@ua.ac.be

/* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Calibri","sans-serif"; mso-bidi-font-family:"Times New Roman";}