• English
    • Ελληνικά
  • English 
    • English
    • Ελληνικά
  • Login
Browsing by Subject 
  •   Home
  • Browsing by Subject
  •   Home
  • Browsing by Subject
JavaScript is disabled for your browser. Some features of this site may not work without it.

Browsing by Subject "Failure analysis"

  • 0-9
  • Α
  • Β
  • Γ
  • Δ
  • Ε
  • Ζ
  • Η
  • Θ
  • Ι
  • Κ
  • Λ
  • Μ
  • Ν
  • Ξ
  • Ο
  • Π
  • Ρ
  • Σ
  • Τ
  • Υ
  • Φ
  • Χ
  • Ψ
  • Ω
  • A
  • B
  • C
  • D
  • E
  • F
  • G
  • H
  • I
  • J
  • K
  • L
  • M
  • N
  • O
  • P
  • Q
  • R
  • S
  • T
  • U
  • V
  • W
  • X
  • Y
  • Z

Sort by:

Order:

Results:

Now showing items 1-20 of 21

  • title
  • submit date
  • accessioned date
  • ascending
  • descending
  • 5
  • 10
  • 20
  • 40
  • 60
  • 80
  • 100
    • Article  

      Conditional densities for continuous-time nonlinear hybrid systems with applications to fault detection 

      Hibey, J. L.; Charalambous, Charalambos D. (1999)
      Continuous-time nonlinear stochastic differential state and measurement equations, all of which have coefficients capable of abrupt changes at a random time, are considered; finite-state jump Markov chains are used to model ...

    • Conference Object  

      Decentralized failure diagnosis in discrete event systems 

      Athanasopoulou, E.; Hadjicostis, Christoforos N. (2006)
      In this paper, we develop and analyze decentralized failure diagnosis schemes for systems that can be modeled as finite state machines (FSMs). We consider a scenario where we are given multiple local diagnosers (with partial ...

    • Conference Object  

      Decentralized Reconfigurable Control for Large-Scale Systems with Application to a Segmented Telescope Test-Bed 

      Abdullah, A. A.; Ioannou, Petros A. (2003)
      Designing a decentralized reconfigurable control (DRC) system is considered for large-scale systems. The objective of the DRC system is to achieve performance requirements under normal and sensor failure situations. The ...

    • Article  

      Distributed Fault Diagnosis in Discrete Event Systems via Set Intersection Refinements 

      Keroglou, C.; Hadjicostis, Christoforos N. (2018)
      We extend and verify diagnosability for a class of set intersection refinement strategies, which can be used for distributed state estimation and fault diagnosis in nondeterministic finite automata that are observed at ...

    • Article  

      Fault diagnosis in discrete event systems modeled by partially observed petri nets 

      Ru, Y.; Hadjicostis, Christoforos N. (2009)
      In this paper, we study fault diagnosis in discrete event systems modeled by partially observed Petri nets, i.e., Petri nets equipped with sensors that allow observation of the number of tokens in some of the places and/or ...

    • Article  

      Fault-tolerant dynamic systems 

      Hadjicostis, Christoforos N.; Verghese, G. C. (2000)
      We use unreliable system replicas and unreliable voters to construct redundant dynamic systems that tolerate transient failures in their state transition and error correcting mechanisms. Using low density parity check ...

    • Conference Object  

      Graphical inference methods for fault diagnosis based on information from unreliable sensors 

      Le, T.; Hadjicostis, Christoforos N. (2006)
      In this paper, we study the application of decoding algorithms to the multiple fault diagnosis (MFD) problem. Prompted by the resemblance between graphical representations for MFD problems and parity check codes, we develop ...

    • Article  

      Max-product algorithms for the generalized multiple-fault diagnosis problem 

      Le, T.; Hadjicostis, Christoforos N. (2007)
      In this paper, we study the application of the max-product algorithm (MPA) to the generalized multiple-fault diagnosis (GMFD) problem, which consists of components (to be diagnosed) and alarms/connections that can be ...

    • Article  

      Maximum likelihood failure diagnosis in finite state machines under unreliable observations 

      Athanasopoulou, E.; Li, L.; Hadjicostis, Christoforos N. (2010)
      In this paper, we develop a probabilistic methodology for failure diagnosis in finite state machines based on a sequence of unreliable observations. Given prior knowledge of the input probability distribution but without ...

    • Conference Object  

      Modeling the implications of DRAM failures and protection techniques on datacenter TCO 

      Nikolaou, Panagiota; Sazeides, Yiannakis; Ndreu, L.; Kleanthous, Marios M. (IEEE Computer Society, 2015)
      Total Cost of Ownership (TCO) is a key optimization metric for the design of a datacenter. This paper proposes, for the first time, a framework for modeling the implications of DRAM failures and DRAM error protection ...

    • Article  

      On the history of diagnosability and opacity in discrete event systems 

      Lafortune, S.; Lin, F.; Hadjicostis, Christoforos N. (2018)
      This paper presents historical remarks on key projects and papers that led to the development of a theory of event diagnosis for discrete event systems modeled by finite-state automata or Petri nets in the 1990s. The goal ...

    • Conference Object  

      The performance vulnerability of architectural and non-architectural arrays to permanent faults 

      Hardy, D.; Sideris, I.; Ladas, N.; Sazeides, Yiannakis (2012)
      This paper presents a first-order analytical model for determining the performance degradation caused by permanently faulty cells in architectural and non-architectural arrays. We refer to this degradation as the performance ...

    • Conference Object  

      Power system monitoring based on relay and circuit breaker information 

      Hadjicostis, Christoforos N.; Verghese, G. C. (2001)
      In this paper we develop monitoring schemes that are able to detect and identify failures in power transmission lines by analyzing binary status information from relays and circuit breakers. The approach, which is based ...

    • Article  

      Power system monitoring using Petri net embeddings 

      Hadjicostis, Christoforos N.; Verghese, G. C. (2000)
      A failure in a power transmission line causes a number of circuit breakers to activate in an effort to isolate the failure and prevent it from corrupting the rest of the power system. Based on information from these ...

    • Conference Object  

      Probabilistic failure diagnosis in finite state machines under unreliable observations 

      Athanasopoulou, E.; Li, N.; Hadjicostis, Christoforos N. (2006)
      In this paper we develop a probabilistic methodology for calculating the likelihood that an observed, possibly corrupted event sequence was generated by two (or more) candidate finite state machines (FSMs) (one of which ...

    • Conference Object  

      Probabilistic fault detection in finite-state machines based on state occupancy measurements 

      Hadjicostis, Christoforos N. (2002)
      This paper discusses a probabilistic methodology for detecting permanent or transient functional changes in the state-transition mechanism of a deterministic finite-state machine (FSM). The associated detector observes the ...

    • Article  

      Process algebraic modelling and analysis of power-aware real-time systems 

      Lee, I.; Philippou, Anna; Sokolsky, O. (2002)
      A unified formal framework for designing and reasoning about power-constrained, real-time systems is described. The framework is based on process algebra, a formalism that has been developed to describe and analyse ...

    • Conference Object  

      Reachability analysis for a class of petri nets 

      Ru, Y.; Hadjicostis, Christoforos N. (2009)
      In this paper, we study the reachability problem for the class of (strictly) monotone Petri nets that we define based on algebraic conditions. More specifically, given a (strictly) monotone Petri net, an initial marking ...

    • Article  

      Stochastic testing of finite state machines 

      Hadjicostis, Christoforos N. (2001)
      This paper discusses an approach that uses statistical observations about the steady-state behavior of a finite state machine (FSM) in order to detect and identify permanent failures in its state transition mechanism. The ...

    • Conference Object  

      Surface failure detection for an F/A-18 aircraft using neural networks and fuzzy logic 

      Raza, H.; Ioannou, Petros A.; Youssef, H. M. (IEEE, 1994)
      In this paper we consider the problem of detecting control surface failures of a high performance aircraft. The detection model is developed using a linear, six degree of freedom dynamic model of an F/A-18 aircraft. The ...

      Browse

      EverywhereCommunities & CollectionsBy Submission DateAuthorsTitlesSubjectsBy TypeBy DepartmentBy Faculty

      My Account

      Login
      Πνευματικά δικαιώματα ©  Βιβλιοθήκη Πανεπιστημίου Κύπρου
      Contact Us | Send Feedback
      Οδηγίες κατάθεσης διδακτορικής διατριβής
      Open Access
      ORCiD