KSL-89-14 + redirect page
Hypermedia and Randomized Algorithms for Medical Expert Systems + Has identifier
Hypermedia and Randomized Algorithms for Medical Expert Systems + Ksl tr id
Hypermedia and Randomized Algorithms for Medical Expert Systems + Number
| Hypermedia and Randomized Algorithms for Medical Expert Systems |
Bibtype
techreport
Has publishing details
1989
Has title
Hypermedia and Randomized Algorithms for Medical Expert Systems
Has where published
KSL-89-14
Has year
1989
Title
Hypermedia and Randomized Algorithms for Medical Expert Systems
Year
1989
Abstract
Hypermedia and randomized algorithms for m … Hypermedia and randomized algorithms for medical expert systems KNET is an environment for constructing probabilistic, knowledge-intensive systems within the axiomatic framework of decision theory. The KNET architecture defines a complete separation between the hypermedia user interface on the one hand, and the representation and management of expert opinion on the other. KNET offers a choice of algorithms for probabilistic inference. My coworkers and I have used KNET to build consultation systems for lymph-node pathology, bone-marrow transplantation therapy, clinical epidemiology, and alarm management in the intensive-care unit.Most important, KNET contains a fully polynomial randomized approximation scheme (fpras) for the difficult and almost certainly intractable problem of Bayesian inference. My algorithm can, in many circumstances, perform efficient approximate inference in large and richly interconnected models of medical diagnosis. In this article, I describe the architecture of KNET, construct a randomized algorithm for probabilistic inference, and analyze the algorithm's performance. Finally, I characterize my algorithm's empiric behavior and explore its potential for parallel speedups. From design to implementation, then, KNET clearly demonstrates the crucial interaction between theoretical computer science and medical informatics. computer science and medical informatics.
Address
Washington D.C. +
Author
R. Martin Chavez +
Has author
R. Martin Chavez +
Has identifier
Hypermedia and Randomized Algorithms for Medical Expert Systems +
Institution
Knowledge Systems, AI Laboratory +
Ksl tr id
Hypermedia and Randomized Algorithms for Medical Expert Systems +
Number
Hypermedia and Randomized Algorithms for Medical Expert Systems +
Process note
YES +
Categories KSL Technical Report +, Publication +, Technical Report +
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