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Biomedical subjects

Ralf Kurt Schweiger

Publications and source records attributed to Ralf Kurt Schweiger.

2 recordsLinked to original sources

Knowledge representation in digital medical documents for efficient information access and retrieval.

Information access and retrieval are essential to serve the delivery and application of evidence-based medicine. The literature provides evidence for the effectiveness of computerization of medical knowledge for increasing compliance with current standards and improving patient outcomes. But all efforts in implementing knowledge-based functions remain limited in respect of either the prolonged exposure to live clinical use, the complexity of knowledge content supported, the dependencies on a technology platform and host system, or the proof of use and content sharing across multiple and varying environments. We have to face currently an information overload, especially in medicine. As a result, efficient ways of implementation of evidence-based care become more and more important. Most of the medical knowledge contained in textbooks, guidelines, journals as well as online resources is text-based. In order to present problem-specific information at the point of care the outlined concept relies on a document-based solution with the eXtensible Markup Language (XML). The adoption of XML as a standard for the publication and interchange of documents creates a great opportunity for better information retrieval. On the basis of structured data we are able to improve the search quality for clinical information which forms a crucial pre-requisite for the implementation of evidence-based care.

Diffusion of Innovation↗

Indexing of Internet resources in order to improve the provision of problem-relevant medical information.

Due to the information overload and the unstructured access to (medical) information of the internet, it isn't hardly possible to find problem-relevant medical information in an appropriate time (e.g. during a consultation). The web offers a mixture of web pages, forums, newsgroups and databases. The search for problem-relevant information for a certain knowledge area encounters on two basic problems. On the one hand, you have to find in the jungle of the information, relevant resources for your individual clinical case (treatment, diagnosis, therapeutic option etc..). The second problem consists of being able to judge the quality of individual contents of inteernet pages. On the basis of the different informational needs of health care professionals and patients a catalog with inteernet resources was created to tumor diseases such as lung cancer (small cell and non-small cell carcinoma), colorectal cancer and thyroid cancer. Explicit and implicit metainformation, if available, such as the title of the document, language, date or keywords are stored in the database. The database entries are editorially revised, so that further specific metainformation is available for the information retrieval. Our pragmatic approach of searching, editing, and archiving of internet content is still necessary since most of the web documents are based on HTML, which doesn't allow for structuring (medical) information and assigning metainformation sufficiently. The use of specific metainformation is crucial in order to improve the recall and precision of internet searches. In the future, XML and related technologies (RDF) will meet these requirements.

Abstracting and Indexing↗