摘要:
A modular method of composing an ontology alignment provides a set of correspondences between at least two ontologies thereby allowing a composition of an optimal alignment by balancing a recall value and a precision of the alignment. A two-fold strategy is followed. By means of mapping functions a set of alignment correspondences is determined. Depending on a particular mapping function a recall value of the alignment can be improved by an extension of the set of correspondences. By filtering functions particularities of the domain are reflected and incorrect mappings are avoided. Depending on a particular filtering function a precision value of the alignment can be improved by restricting the set of correspondences.
摘要:
A method composing a medical image analysis, includes the steps of: retrieving anatomical findings captured in a medical report by an information extraction module; providing at least one anatomical knowledge model including a plurality of concepts and a plurality of relationship between the plurality of concepts; mapping at least one anatomical finding of the medical re-port by at least one of the plurality of concepts by a mapping component, thereby locating the anatomical findings in the context of the anatomical knowledge model; and; representing the anatomical findings in the context of the anatomical knowledge model within an anatomical model by a visualization component.
摘要:
A modular method of composing an ontology alignment provides a set of correspondences between at least two ontologies thereby allowing a composition of an optimal alignment by balancing a recall value and a precision of the alignment. A two-fold strategy is followed. By means of mapping functions a set of alignment correspondences is determined. Depending on a particular mapping function a recall value of the alignment can be improved by an extension of the set of correspondences. By filtering functions particularities of the domain are reflected and incorrect mappings are avoided. Depending on a particular filtering function a precision value of the alignment can be improved by restricting the set of correspondences.
摘要:
A method of retrieving information regarding an information resource, has the steps of: providing an information resource with a plurality of information instances from a first memory unit; providing a knowledge model with a plurality of type categories and a relationship between at least two type categories from a second memory unit; providing a multi-dimensional context model with a plurality of context categories and a number of dimensions corresponding to a number of the context categories from a third memory unit; annotating an information instance by one of the type categories; mapping at least one type category and/or annotating at least one information instance by one of the context categories; and; assigning a context variable to one of the context categories, the context variable determining a value of a context distance between the context category and the information instance mapped to the context category.
摘要:
A method and system for providing instance information data of at least one instance. The method has the steps of generating a semantic representation of the instance on the basis of at least one instance data source, providing a semantic representation of a domain on the basis of at least one structured domain data source, performing an integration of the semantic instance and domain representations to provide an integrated semantic representation and deriving automatically instance information data from the provided integrated semantic representation. The method and system allow to provide efficiently instance information data of a wide range of instances with technical entities and persons, in a particular patients in different domains such as radiology or anatomy.
摘要:
A medical ontology may be used for computer assisted clinical decision support. Multi-level and/or semantically grouped medical ontology is incorporated into a machine learning algorithm. The resulting machine-learnt algorithm outputs information to assist in clinical decisions. For example, a patient record is input to the algorithm. Based on the incorporated medical ontology, similarities are aggregated in different groups. An aggregate similarity of at least one group is a function of an aggregate similarity of at least another group. One or more similar patients and/or outcomes are identified based on similarity. Probability based outputs may be provided.
摘要:
A method and an apparatus provide at least one configuration data ontology module. Modules are extracted from an ontology under consideration of the semantics of the ontology. Therefore, individual concepts are selected from the ontology which are in a subsequent step connected by relations. The method and apparatus are used in ontology modularization, and especially in biomedical application domains.
摘要:
A method and an apparatus retrieve additional information regarding a patient record. Applying the subject-matter of the present invention clinical experts, such as doctors, can be provided with domain specific background knowledge, and can, hence, be supported in making decisions regarding the treatment of patients. Said additional information can be structured and visualised, which makes the retrieved information understandable also for persons without advanced knowledge regarding data processing. The retrieval of additional information is accomplished by a comparison of data being stored in the patient record and data being stored in a predefined textual resource, such as a ontology, and an identification of further terms describing attributes of the patient record. This finds application in supporting the diagnosis of patients and healthcare related information retrieval tasks.