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The effect of adding domain knowledg...
~
Ambrosino, Richard.
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The effect of adding domain knowledge on the learning of rule-based models for decision-support.
Record Type:
Language materials, printed : Monograph/item
Title/Author:
The effect of adding domain knowledge on the learning of rule-based models for decision-support./
Author:
Ambrosino, Richard.
Description:
374 p.
Notes:
Adviser: Bruce G. Buchanan.
Contained By:
Dissertation Abstracts International61-12B.
Subject:
Computer Science. -
Online resource:
http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=9998572
ISBN:
0493068457
The effect of adding domain knowledge on the learning of rule-based models for decision-support.
Ambrosino, Richard.
The effect of adding domain knowledge on the learning of rule-based models for decision-support.
- 374 p.
Adviser: Bruce G. Buchanan.
Thesis (Ph.D.)--University of Pittsburgh, 2000.
Historically, medical decision-support systems have either been <italic> engineered</italic> from knowledge acquired from domain experts, or learned from clinical databases using computer learning algorithms. The amount of expert domain knowledge used in building models can be considered as a continuous spectrum: at one end of this spectrum are models which are built almost exclusively from expert knowledge (e.g., QMR); at the other end, are models generated from clinical data by statistical or machine learning algorithms (e.g., the pre-operative cardiac risk-assessment scale of Goldman et al. [1977.]) Very little research has focused on combining these two approaches.
ISBN: 0493068457Subjects--Topical Terms:
626642
Computer Science.
The effect of adding domain knowledge on the learning of rule-based models for decision-support.
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Adviser: Bruce G. Buchanan.
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Source: Dissertation Abstracts International, Volume: 61-12, Section: B, page: 6553.
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Thesis (Ph.D.)--University of Pittsburgh, 2000.
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Historically, medical decision-support systems have either been <italic> engineered</italic> from knowledge acquired from domain experts, or learned from clinical databases using computer learning algorithms. The amount of expert domain knowledge used in building models can be considered as a continuous spectrum: at one end of this spectrum are models which are built almost exclusively from expert knowledge (e.g., QMR); at the other end, are models generated from clinical data by statistical or machine learning algorithms (e.g., the pre-operative cardiac risk-assessment scale of Goldman et al. [1977.]) Very little research has focused on combining these two approaches.
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This thesis completely describes a study designed to test the hypothesis that the learning of a decision-support model by a computer learning algorithm from clinical data can be improved by the addition of domain knowledge from practicing physicians. The domain of the experiment is community-acquired pneumonia. The overall design of the study presented in this thesis compares a computer learning algorithm given clinical data to one given clinical data plus domain knowledge added by physician subjects.
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The results reported in this thesis show that the performance of the computer-generated models augmented with knowledge added by physician subjects were significantly better than the computer-generated models generated without added knowledge using a two-stage rule induction algorithm in the domain of community-acquired pneumonia. This result was highly significant and shows that the addition of domain knowledge may be beneficial to the learning of clinical decision-support models, especially in domains where data is limited.
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http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=9998572
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