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Enabling Technologies: Infrastructure for Collaborative Enterprises (WETICE), 2011 20th IEEE International Workshops on

Date 27-29 June 2011

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Displaying Results 1 - 25 of 80
  • [Front cover]

    Page(s): C1
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  • [Title page i]

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  • [Title page iii]

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  • [Copyright notice]

    Page(s): iv
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  • Table of contents

    Page(s): v - x
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  • General Chair's Report

    Page(s): xi
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  • Conference Committees

    Page(s): xii
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  • ACEC Track Committee

    Page(s): xiii
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  • AROSA Track Committee

    Page(s): xiv
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  • CDCGM Track Committee

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  • CKDD Track Committee

    Page(s): xvi
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  • CoMetS Track Committee

    Page(s): xvii
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  • COPECH Track Committee

    Page(s): xviii
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  • CPS Track Committee

    Page(s): xix
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  • CT2CM Track Committee

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  • A Principled Approach to Eventual Consistency

    Page(s): 1
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (79 KB) |  | HTML iconHTML  

    Replicating shared data is a fundamental mechanism in large-scale distributed systems, but suffers from a fundamental tension between scalability and data consistency. Eventual consistency sidesteps the (foreground) synchronisation bottleneck, but remains ad-hoc, error-prone, and difficult to prove correct. We present a promising new approach that is simple, scales almost indefinitely, and provably ensures eventual consistency: A CRDT is a data type that demonstrates some simple properties, viz. that its concurrent operations commute, or that its states form a semi-lattice. Any CRDT provably converges, provided all replicas eventually receive all operations. A CRDT requires no synchronisation: an update can execute immediately, irrespective of network latency, faults, or disconnection; it is highly scalable and fault-tolerant. The approach is necessarily limited since any task requiring consensus is out of reach. Nonetheless, many interesting and useful data types can be designed as a CRDT. We previously published the Treedoc CRDT, a sequence data type suited to concurrent editing tasks (as in a p2p wiki). This talk presents a portfolio of generally useful, non-trivial, composable CRDTs, including variations on counters, registers, sets, maps (key-value stores), graphs and sequences. This research is part of a systematic and principled study of CRDTs, to discover their power and limitations, and to better understand the underlying mechanisms and requirements. The challenges ahead include scaling garbage collection and integrating occasional non-commuting operations. View full abstract»

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  • On the Representational Bias in Process Mining

    Page(s): 2 - 7
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (413 KB) |  | HTML iconHTML  

    Process mining serves a bridge between data mining and business process modeling. The goal is to extract process related knowledge from event data stored in information systems. One of the most challenging process mining tasks is process discovery, i.e., the automatic construction of process models from raw event logs. Today there are dozens of process discovery techniques generating process models using different notations (Petri nets, EPCs, BPMN, heuristic nets, etc.). This paper focuses on the representational bias used by these techniques. We will show that the choice of target model is very important for the discovery process itself. The representational bias should not be driven by the desired graphical representation but by the characteristics of the underlying processes and process discovery techniques. Therefore, we analyze the role of the representational bias in process mining. View full abstract»

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  • Collaborative Modeling and Simulation: The Virtual Physiological Human Vision (Keynote)

    Page(s): 8
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (76 KB) |  | HTML iconHTML  

    The Virtual Physiological Human (VPH) is an international research initiative, which aims to develop a framework of methods and technologies enabling an integrative investigation of the human physiology and pathology. The term integrative indicates the need to overcome the limitations of the reductionist approach, attempting to capture the emergences due to systemic interaction between space-time scales, organ systems, but also academic disciplines. In this brief presentation of the VPH initiative and of its early results we argument that the VPH is first and foremost an attempt to develop an effective environment for collaborative modeling and simulation. View full abstract»

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  • The Complex Semantic Space Model

    Page(s): 9 - 15
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    The cyber-physical society is a complex space where human abilities are extended to various spaces by coordinating the cyber space, physical space, socio space and mental space. A challenge issue is to seek the uniformity in managing resources in these spaces. This keynote introduces a complex semantic space model that is suitable for managing various resources in different spaces in the cyber-physical society. The model is based on classification and link, which are basic mechanisms in forming and evolving spaces. Its distinguished characteristics and functions support the implementation of cyber-physical-socio intelligence. Applications in supporting co-navigation in multiple spaces in the cyber-physical society and in modeling the management of semantic images are introduced. View full abstract»

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  • Agent-Based Computing for Enterprise Collaboration: Agents and Services Interoperability Track Report - ACEC 2011

    Page(s): 16 - 18
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (281 KB) |  | HTML iconHTML  

    The 9th edition of the "Agent-based Computing for Enterprise Collaboration" track at WETICE 2011 focuses on the areas of agent-based services and agent-based solutions for dynamic collaborations. The purpose of this track is to bring together researches in the fields of software agents as they relate to the context of enterprise collaboration. This report briefly discusses the content of the papers presented in the track by respective authors. View full abstract»

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  • Email-based Negotiation to Facilitate Collaboration in SME Networks

    Page(s): 19 - 24
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (543 KB) |  | HTML iconHTML  

    Small and medium enterprises (SMEs) typically rely on emails to interact with other SMEs in a collaborative network. However, with the use of different document standards and interpretation techniques establishing a shared understanding of business documents (or emails) can be difficult and raise interoperability issues. In this paper we introduce Commius - a zero cost enterprise system that aims to achieve seamless interoperability among collaborative SMEs. At the heart of Commius is a semantic alignment mechanism capable of automatically interpreting a document received by the system. However, when the automatic interpretation fails, Commius employs agent-inspired negotiation techniques to help achieve common understanding of the document with other Commius system (installed at sender or collaborative SME). This paper presents details of Commius's email negotiation mechanism with the help of a running scenario that demonstrates how Commius-based negotiation can support SMEs achieve semantic alignment in collaborative networks. View full abstract»

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  • Agent-based Social Networks for Enterprise Collaboration

    Page(s): 25 - 28
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    This paper discusses the relationship between agent technology and the recent wave of online social networks in the scope of the notable scenario of enterprise collaboration. In the brief introduction on the topic, we provide a coherent view of online social networks and social network systems. Then, we emphasize some features that can be considered as notable flaws that make everyday social networks and systems unusable to facilitate enterprise collaboration. Finally, we show how agent technology can address some of the mentioned flaws. The paper terminates with some concluding remarks and with an outline of future research directions. View full abstract»

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  • Implementing Agent Interoperability between Language-Heterogeneous Platforms

    Page(s): 29 - 34
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    One of the most important feature of a MAS (Multi-Agent System) is the cooperation and the coordination among agents placed in distributed environments. Due to the high heterogeneity of agents and platforms, interoperability has become a key issue for the use of MASs in academic and industrial fields. Several approaches to interoperability proposed so far are based on the JAVA technology exploiting the homogeneity of the programming language and technology. In this paper we introduce a new middleware that enables the interoperability among agents execution in different platforms, implemented with different programming languages. Our approach is FIPA-IEEE compliant and programming-language independent. View full abstract»

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  • A Diversity Analysis of the Impact of an Interoperability Tool to a Business Ecosystem

    Page(s): 35 - 40
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    In this paper we present how by analysing the diversity of a system we can estimate the impact of an enterprise interoperability tool to a business ecosystem. We report experimental results on using a multi-agent system to simulate a business ecosystem in which we introduce the local effect of Commius, a low-cost interoperability tool for SMEs, into business collaborative interactions. The importance of the results derives from the egocentric attention commonly paid to the collaboration boost brought to the company using this sort of tools without considering the side effects it could bring to the network, where more than one company can also use it. When we apply our results to a cluster of companies, experiments indicate that an interoperability indeed adds dynamism to the network, yet it does not improve the network's capability of resilience. View full abstract»

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  • Interactive Ontology Evolution Management Using Mutli-agent System: A Proposal for Sustainability of Semantic Interoperability in SOA

    Page(s): 41 - 46
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    This paper discusses a new approach towards ontology evolution management framework and relates it to the sustainability of semantic interoperability in SOA. Indeed, when the semantic representation of the service evolves, the interpretation of queries may change. Thus, it's often challenging to evaluate the results of the query. Sources of this problem include the lack of support for semantic evolution management in ontology-based service oriented systems, and the static nature of the mappings between ontologies in this environment. To address these issues, we have developed P2OManager, an interactive tool for ontology evolution management. This system allows the users to automatically create an ontology agent manager. This agent manages evolution on both ontology and mappings and communicates with other ontology agents to take them aware of all changes which may affect exchanges with their services. Examples illustrate how P2OManager can provide valuable support for ontology evolution management, when specific changes are provided. View full abstract»

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