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US 2009/0157663 A1Published application
Modeling qualitative relationships in a causal graph
AssigneeHigh Tech Campus 44
InventorTen Warner Rudolph Theophile Kate
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AssigneeHigh Tech Campus 44
InventorTen Warner Rudolph Theophile Kate
Estimating the term…
The invention relates to a system (100, 304) for determining a subset of disorders of a set of disorders for an observed symptom of a set of symptoms, the system comprising: a modeler (102) for modeling qualitative relationships between disorders of the set of disorders and symptoms of the set of symptoms as a causal graph; an orderer (104) for partially ordering the qualitative relationships; a determiner (106) for using the observed symptom to determine the subset of disorders for the observed symptom based upon the partial ordering of the qualitative relationships. The invention further relates to a method of determining a subset of disorders of a set of disorders for an observed symptom of a set of symptoms, wherein qualitative relationships between disorders of the set of disorders and symptoms of the set of symptoms are modeled as a causal graph and the qualitative relationships are partially ordered, the method comprising using the observed symptom to determine the subset of disorders for the observed symptom based upon the partial ordering of the qualitative relationships. The invention further relates to A medical workstation (116) for determining a subset of disorders of a set of disorders for an observed symptom of a set of symptoms, the medical workstation comprising: the system (100, 304) according to the invention; a database (112, 306) comprising a set of disorders, a set of symptoms, a model of qualitative relationships between disorders of the set of disorders and symptoms of the set of symptoms as a causual graph and a partial ordering the qualitative relationships; and an interactive device (118, 120, 122) for providing interaction between a user and the medical workstation. The invention further relates to a computer program product (324) to be loaded by a computer arrangement (116), comprising instructions for determining a subset of disorders of a set of disorders for an observed symptom of a set of symptoms, the computer arrangement comprising processing unit (110) and a memory (124), the computer program product, after being loaded, providing said processing unit with the capability to carry out method according to the invention.
System (100, 304) for determining a subset of disorders of a set of disorders for an observed symptom of a set of symptoms, the system comprising:
A system according to 1, wherein each of the qualitative relationships is associated with a likelihood level within the partial ordering of the qualitative relationships.
A method of determining a subset of disorders of a set of disorders for an observed symptom of a set of symptoms, wherein qualitative relationships between disorders of the set of disorders and symptoms of the set of symptoms are modeled as a causal graph and the qualitative relationships are partially ordered, the method comprising:
A computer program product (324) to be loaded by a computer arrangement (116), comprising instructions for determining a subset of disorders of a set of disorders for an observed symptom of a set of symptoms, the computer arrangement comprising processing unit (110) and a memory (124), the computer program product, after being loaded, providing said processing unit with the capability to carry out the task of using the observed symptom to determine the subset of disorders for the observed symptom based upon a partial ordering of qualitative relationships wherein the qualitative relationships between disorders of the set of disorders and symptoms of the set of symptoms are modeled as a causal graph and the qualitative relationships are partially ordered.
Dependencies are inferred from the claim text.