Accounting for textual variation in the documents and queries processed by information retrieval systems is considered essential for achieving good retrieval. Recent research has called into question several of the techniques used to support this endeavor. This paper reports on experiments with a concept based information retrieval system which relies on a program called MetaMap to account for ...

Accounting for textual variation in the documents and queries processed by information retrieval systems is considered essential for achieving good retrieval. Recent research has called into question several ofthe techniques used to support this endeavor This paper reports on experiments with a concept based information retrieval system which relies on a program called MetaMap to accountfor tex...

In this paper we present a comprehensive approach to automatic organization and hybrid navigation of text databases. An organizing stage first builds a particular lattice representation of the data, through text indexing followed by lattice clustering of the indexed texts. The lattice representation, then, supports the navigation stage of the system, a visual retrieval interface that combines t...

Introduction Structure in documents has been a part of Information Retrieval as long as the field has existed. There have always been documents with metadata information such as authors and creation dates. Researchers have always recognized that document structure is important to effective retrieval. The earliest systems supporting structure focused on providing support for querying of the fiel...

Clinical Computing System The Beth Israel Deaconess Medical Center East Campus clinical computing system, developed by the Center for Clinical Computing, is a heavily used, integrated hospital information system.' There are more than five thousand tenninals and workstations located throughout the hospital, ambulatory, and satellite facilities. Each week clinicians access patient information mor...

Personal Bibliographic Systems (PBS) manage the input, storage, retrieval, and output of bibliographic references. The software allows for references to a number of different document types such as journal articles, books, book chapters, dissertations, reports, unpublished papers, electronic documents, etc. Unlike general-purpose database management packages, PBS are made for bibliographic info...