The basic decision-theoretic troubleshooting task is described in this paper. Dependency sets are defined for a better understanding of dependent actions. It is shown that an optimal troubleshooting sequence is achievable once these sets are solved optimally. Then, an efficient heuristic method is introduced that adjusts action efficiencies myopically and performs a greedy search. Performance o...

We develop a decision-theoretic method that yields approximate, low cost troubleshooting plans by making more relevant observations and devoting more time to generate a plan. The method is tested against other methods on three different problems in an experimental setting. Sensitivity analysis of the parameters is also carried out. The method yields low cost troubleshooting plans by spending su...

This How To Note describes techniques for troubleshooting slow network performance. When troubleshooting a network slow down problem, it is very important to keep in mind that hardware-based forwarding in switches never slows down it continues to operate at wire speed on all ports all the time. Therefore, the cause of slow network performance is never going to be something that is causing a slo...

One of the problems teaching introductory object-oriented problem solving and programming is designing appropriate and enlightening examples and exercises. The type of examples we use in procedural programming is not necessarily adequate for illustrating similar syntactical concepts in an object-oriented paradigm. Moving to a higher level of abstraction, as with objects examples need to illustr...

Troubleshooting is a particular problem-solving process comprising error detection, fault diagnosis, and system restoration. Since automation of systems has become increasingly complex ubiquitous, troubleshooting skills are crucial to maintain safety security in variety contexts. The planned study aims at examining strategies how induce them by means simple visual aids concise instructions. To ...

We consider computer assisted troubleshooting of complex systems, for example of a vehicle at a workshop. The objective is to identify the cause of a failure and repair a system at as low expected cost as possible. Three main challenges are: the need for disassembling the system during troubleshooting, the difficulty to verify that the system is fault free, and the dependencies in between compo...

BACKGROUND We wanted to demonstrate the feasibility of a novel computer-assisted ventilator alarm system, the support system for care of mechanically ventilated patients (SCMVP), to detect gas leaks and provide graphical information on the site of the leak in a manikin model. METHODS We tested six leakage scenarios. Four scenarios were applied to both the respiratory circuits with the SCMVP a...

Troubleshooting faults or performance disruptions in today’s Internet is at best frustrating. When users experience performance or connectivity problems, there is little they can do. The most common attempt to solve the problem is to reboot or call the provider’s hot line. Network providers have more information to use in diagnosing problems in their networks, but their network troubleshooting ...