Expert system for medical diagnosis
First Claim
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1. A computer-implemented expert system including:
- a memory for;
storing a plurality of hypotheses, where the hypotheses are arranged in at least a first and second disjoint group of hypotheses, wherein the first group of hypotheses includes hypotheses that may be taken by the system and the second group includes hypotheses that may not be taken by the system; and
storing questions for rejecting hypotheses of the second group;
an output for supplying questions from the memory;
an input for receiving initial data and answers to outputted questions;
a processor programmed to;
select questions from the stored questions for those hypotheses from the second group that are possible in dependence on the initial data;
determine from at least one answer received in response to outputting the selected questions whether at least one of the hypotheses of the second group is possible by comparing received answers to a predetermined answer sequence stored in or derivable from the memory; and
in response to determining that no hypothesis of the second group is possible, supply via the output a most likely hypothesis of the first group in dependence on at least the initial data,wherein the expert system is used for medical diagnosis, the initial data includes a health complaint,the second group of hypotheses containing medical diagnoses that require attention of a medical expert,the first group of hypotheses containing medical diagnoses that do not require any medical attention or can be cured or treated without assistance of a medical expert, andthe processor is programmed to select the questions in dependence on the health complaint.
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Abstract
An expert system, in particular for medical diagnosis, includes a memory 2 for storing a plurality of hypotheses. The hypotheses are arranged in a first and second disjoint group of hypotheses. The memory stores questions for rejecting hypotheses of the second group. An output 3 is used for supplying questions to a user. A input 4 is used for receiving initial data and answers to questions. A processor 5 is programmed to select questions from the stored questions for those hypotheses from the second group that are possible in dependence on the initial data. The processor also determines from answer(s) received in response to outputting the selected questions whether at least one of the hypotheses of the second group is possible. In response to determining that no hypothesis of the second group is possible, the processor supplies a most likely hypothesis of the first group.
9 Citations
14 Claims
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1. A computer-implemented expert system including:
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a memory for; storing a plurality of hypotheses, where the hypotheses are arranged in at least a first and second disjoint group of hypotheses, wherein the first group of hypotheses includes hypotheses that may be taken by the system and the second group includes hypotheses that may not be taken by the system; and storing questions for rejecting hypotheses of the second group;
an output for supplying questions from the memory;an input for receiving initial data and answers to outputted questions; a processor programmed to; select questions from the stored questions for those hypotheses from the second group that are possible in dependence on the initial data; determine from at least one answer received in response to outputting the selected questions whether at least one of the hypotheses of the second group is possible by comparing received answers to a predetermined answer sequence stored in or derivable from the memory; and in response to determining that no hypothesis of the second group is possible, supply via the output a most likely hypothesis of the first group in dependence on at least the initial data, wherein the expert system is used for medical diagnosis, the initial data includes a health complaint, the second group of hypotheses containing medical diagnoses that require attention of a medical expert, the first group of hypotheses containing medical diagnoses that do not require any medical attention or can be cured or treated without assistance of a medical expert, and the processor is programmed to select the questions in dependence on the health complaint. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A medium holding instructions executable in a computer, the instructions causing a processor to perform the steps of:
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receiving initial data via an input; selecting from a memory that stores; a plurality of hypotheses, where the hypotheses are arranged in at least a predetermined first and second disjoint group of hypotheses, wherein the first group of hypotheses includes hypotheses that may be taken by the processor and the second group includes hypotheses that may not be taken by the processor, and questions for rejecting hypotheses of the second group, questions for those hypotheses from the second group that are possible in dependence on the initial data; determining from at least one answer received in response to outputting the selected questions whether at least one of the hypotheses of the second group is possible by comparing received answers to a predetermined answer sequence stored in or derivable from the memory; and in response to determining that no hypothesis of the second group is possible, supplying via the output a most likely hypothesis of the first group in dependence on at least the initial data, wherein the processor is used for medical diagnosis, the initial data includes a health complaint, the second group of hypotheses containing medical diagnoses that require attention of a medical expert, the first group of hypotheses containing medical diagnoses that do not require any medical attention or can be cured or treated without assistance of a medical expert, and the processor is programmed to select the questions in dependence on the health complaint.
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Specification
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Current AssigneeVivici BV
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Original AssigneeVivici BV
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InventorsVerlinden, Stefan Frederik Franciscus, Verlinden, Hendrikus Johannes
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Primary Examiner(s)Vincent; David R
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Assistant Examiner(s)Brown, Jr.; Nathan H
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Application NumberUS10/494,146Publication NumberTime in Patent Office2,511 DaysField of Search706/46, 706/45US Class Current706/46CPC Class CodesG06N 5/042 Backward inferencingG16H 50/20 for computer-aided diagnosi...G16Z 99/00 Subject matter not provided...
