By Glenn D. Rennels M.D., Ph.D. (auth.)
As learn on specialist platforms has moved good into its moment decade, it has turn into renowned to quote the restrictions of the phenomenologic or associational method of wisdom illustration that used to be common of first iteration structures. for instance, the Internist-1 wisdom base represents explicitly over six hundred illnesses, encoding linked disorder manifestations (signs, indicators, actual findings, and lab abnormalities) yet failing to accommodate the explanations that these findings can be found in the illness [Miller, R. A. 82]. lately Pople has sought so as to add particular causal types to the information base in a revised model of this system referred to as CADUCEUS [Pople 82]. equally, a customary construction rule within the MYCIN approach states inferences which may be drawn while particular stipulations are chanced on to be real [Buchanan 84], however the underlying reasons for such relationships aren't encoded. Clancey has argued that MYCIN wishes such "supporting wisdom" represented, particularly if its wisdom base is for use for instructing reasons [Clancey 83]. through the overdue Seventies, synthetic intelligence researchers have been commencing to scan with reasoning platforms that used distinct mechanistic or causal niodels of the thing being analyzed. among the finest early examples have been a application to coach scholars the way to learn digital circuits [Brown eighty two] and a process for diagnosing issues of mechanical units [Rieger 76].
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Extra resources for A Computational Model of Reasoning from the Clinical Literature
For example, there have been investigations into the use of specialty databases to yield prognostic information based on subsetting of the data [Rosati 75, deDombal 86]. This is in the same spirit as Roundsman because the researchers are looking for insight into individual patient prognoses. Precisely because of the interpretation difficulties mentioned above, investigators have studied database designs which lend themselves to statistical research such as the explicit introduction of time [Weyl 75].
Minimize the trauma of the procedure: hospital recovery time, repeated radiotherapy (RTX) visits, surgical morbidity, etc. 4. minimize the chance of tumor recurrence in the breast or chest wall even if the chance of overall survival is otherwise equivalent. ) 5. provide prognostic information for chemotherapy: on the basis of certain clinical studies, it is now believed that women with 1-3 histologically positive axillary nodes may benefit from chemotherapy. It is often the case, however, that no one treatment choice is optimal for all objectives.
This organizational view influenced the subsequent design of the Roundsman system. For example, in certain ways Roundsman's internal structures resemble a bibliographic retrieval system more than they resemble a traditional expert system. Overview of the Research and the Roundsman System 39 That is, knowledge resides in separately identifiable "articles" rather than being merged into a knowledge base of clinical rules. There are large differences between Roundsman and bibliographic retrieval systems, but they do have in common the organization of knowledge around separate publications.