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  1. No Access

    Chapter

    Model-Based Diagnosis with Probabilistic Models

    The literature on stochastic methods for diagnosis is extensive, covering domains such as medicine [59], process control [10], and electronics [12]. The use  uncertainty in modeling and inference arises due to s...

    Gregory Provan in Fault Diagnosis of Dynamic Systems (2019)

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    Chapter

    Diagnosing Hybrid Dynamical Systems Using Max-Plus Algebraic Methods

    This article uses an algebraic framework for hybrid systems diagnosis. We define hybrid systems using a class of discrete-event systems, max-plus linear discrete-event systems, which define synchronization wit...

    Gregory Provan in Fault Diagnosis of Hybrid Dynamic and Complex Systems (2018)

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    Article

    An efficient decentralized clustering algorithm for aggregation of noisy multi-mean data

    We describe VarClust, a gossip-based decentralized clustering algorithm designed to support multi-mean decentralized aggregation in energy-constrained wireless sensor networks. We empirically demonstrate that Var...

    Séamus Ó Buadhacháin, Gregory Provan in Journal of Heuristics (2015)

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    Chapter and Conference Paper

    Bayesian Model Selection for Diagnostics

    Model-Based Diagnosis (MBD) addresses the task of isolating the most likely fault given a set of system measurements. The model used for diagnostics is critical to this isolation task, yet little work exists f...

    Gregory Provan in Model and Data Engineering (2015)

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    Chapter and Conference Paper

    A Contracts-Based Framework for Systems Modeling and Embedded Diagnostics

    Two key impediments for the commercial success of model-based diagnosis (MBD) include (a) a failure to integrate diagnostics modeling within the requirements and design phase, and (b) a high degree of diagnost...

    Gregory Provan in Software Engineering and Formal Methods (2015)

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    Chapter and Conference Paper

    Intelligent Hybrid Control Model for Lighting Systems Using Constraint-Based Optimisation

    Lighting systems consume a considerable proportion of total energy budgets, particularly for retail and public-office applications, and hence their optimisation can save considerable amounts of energy. This pa...

    Alie El-Din Mady, Menouer Boubekeur in Soft Computing Models in Industrial and En… (2010)

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    Chapter and Conference Paper

    WSAN QoS Driven Control Model for Building Operations

    Currently wireless based control systems lack appropriate development methodologies and tools. The control model and its underlying wireless network are typically developed separately, which can lead to unstab...

    Alie El-Din Mady, Menouer Boubekeur in Soft Computing Models in Industrial and En… (2010)

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    Chapter and Conference Paper

    Temporal Model-Based Diagnostics Generation for HVAC Control Systems

    Optimizing energy usage in buildings requires global models that integrate multiple factors contributing to energy, such as lighting, “Heating, Ventilating, and Air Conditioning” (HVAC), security, etc. Model t...

    Marion Behrens, Gregory Provan in Theory and Practice of Model Transformations (2010)

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    Chapter and Conference Paper

    A Comparative Analysis of Specific Spatial Network Topological Models

    Creating ensembles of random but “realistic” topologies for complex systems is crucial for many tasks such as benchmark generation and algorithm analysis. In general, explanatory models are preferred to captur...

    Jun Wang, Gregory Provan in Complex Sciences (2009)

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    Chapter and Conference Paper

    Characterizing the Structural Complexity of Real-World Complex Networks

    Although recent research has shown that the complexity of a network depends on its structural organization, which is linked to the functional constraints the network must satisfy, there is still no systematic ...

    Jun Wang, Gregory Provan in Complex Sciences (2009)

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    Chapter and Conference Paper

    Generalizing Global Constraints Based on Network Flows

    Global constraints are used in constraint programming to help users specify patterns that occur frequently in the real world. In addition, global constraints facilitate the use of efficient constraint propagat...

    Igor Razgon, Barry O’Sullivan, Gregory Provan in Recent Advances in Constraints (2008)

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    Chapter and Conference Paper

    Approximate Model-Based Diagnosis Using Greedy Stochastic Search

    Most algorithms for computing diagnoses within a model-based diagnosis framework are deterministic. Such algorithms guarantee soundness and completeness, but are NP-hard. To overcome this complexity problem, w...

    Alexander Feldman, Gregory Provan in Abstraction, Reformulation, and Approximat… (2007)

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    Chapter and Conference Paper

    Approximate Model-Based Diagnosis Using Preference-Based Compilation

    This article introduces a technique for improving the efficiency of diagnosis through approximate compilation. We extend the approach of compiling a diagnostic model, as is done by, for example, an ATMS, to co...

    Gregory Provan in Abstraction, Reformulation and Approximation (2005)

  14. Chapter

    Agent-Based, Distributed Diagnosis for Shipboard Systems

    The ability to reconfigure a ship’s engineering plant in response to changing mission or equipment conditions can dramatically increase a ship’s capability and survivability. We describe the agent-based, distr...

    Gregory Provan, Yi-Liang Chen in Knowledge and Technology Integration in Pr… (2002)

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    Chapter and Conference Paper

    A lattice-theoretic analysis of ATMS problem solving

    This paper presents a lattice-theoretic formalization of the ATMS which allows us to define the semantics of the ATMS, the ATMS labeling operation, as well as focusing algorithms for the ATMS. These focusing a...

    Teow-Hin Ngair, Gregory Provan in Symbolic and Quantitative Approaches to Re… (1993)