Proceedings of the 20th annual international ACM SIGIR conference on Research and development in information retrieval
Graph Visualization and Navigation in Information Visualization: A Survey
IEEE Transactions on Visualization and Computer Graphics
Journal of Biomedical Informatics - Special issue: Unified medical language system
Partitioning the UMLS semantic network
IEEE Transactions on Information Technology in Biomedicine
Research on structural issues of the UMLS: past, present, and future
Journal of Biomedical Informatics - Special issue: Unified medical language system
A lexical metaschema for the UMLS semantic network
Artificial Intelligence in Medicine
Databases and the geometry of knowledge
Data & Knowledge Engineering
Proceedings of the sixteenth ACM conference on Conference on information and knowledge management
Question processing and clustering in INDOC: a biomedical question answering system
EURASIP Journal on Bioinformatics and Systems Biology
Comparing and consolidating two heuristic metaschemas
Journal of Biomedical Informatics
Structural group auditing of a UMLS semantic type's extent
Journal of Biomedical Informatics
Guest Editorial: Special Issue on Auditing of Terminologies
Journal of Biomedical Informatics
Auditing associative relations across two knowledge sources
Journal of Biomedical Informatics
Journal of Biomedical Informatics
A proposal for a configurable silver standard
LAW IV '10 Proceedings of the Fourth Linguistic Annotation Workshop
Visual Exploration across Biomedical Databases
IEEE/ACM Transactions on Computational Biology and Bioinformatics (TCBB)
Passage retrieval based hidden knowledge discovery from biomedical literature
Expert Systems with Applications: An International Journal
Health: related information structuring for the semantic web
Proceedings of the 2011 International Conference on Intelligent Semantic Web-Services and Applications
Improving the mapping between MedDRA and SNOMED CT
AIME'11 Proceedings of the 13th conference on Artificial intelligence in medicine
Quality evaluation of cancer study Common Data Elements using the UMLS Semantic Network
Journal of Biomedical Informatics
Comparing drug-class membership in ATC and NDF-RT
Proceedings of the 2nd ACM SIGHIT International Health Informatics Symposium
Semantic mappings and locality of nursing diagnostic concepts in UMLS
Journal of Biomedical Informatics
Auditing concept categorizations in the UMLS
Artificial Intelligence in Medicine
Anaphoric reference in clinical reports: Characteristics of an annotated corpus
Journal of Biomedical Informatics
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Objectives. We investigate several visual approaches for exploring semantic groups, a grouping of semantic types from the Unified Medical Language System (UMLS) semantic network. We are particularly interested in the semantic coherence of the groups, and we use the semantic relationships as important indicators of that coherence.Methods. First, we create a radial representation of the number of relationships among the groups, generating a profile for each semantic group. Second, we show that, in our partition, the relationships are organized around a limited number of pivot groups and that partitions created at random do not exhibit this property. Finally, we use correspondence analysis to visualize groupings resulting from the association between semantic types and the relationships.Results. The three approaches provide different views on the semantic groups and help detect potential inconsistencies. They make outliers immediately apparent, and, thus, serve as a tool for auditing and validating both the semantic network and the semantic groups.