Automatic classification of scientific records using the German Subject Heading Authority File (SWD)

The following paper deals with an automatic text classification method which does not require training documents. For this method the German Subject Heading Authority File (SWD), provided by the linked data service of the German National Library is used. Recently the SWD was enriched with notations of the Dewey Decimal Classification (DDC). In consequence it became possible to utilize the subject headings as textual representations for the notations of the DDC. Basically, we we derive the classification of a text from the classification of the words in the text given by the thesaurus. The method was tested by classifying 3826 OAI-Records from 7 different repositories. Mean reciprocal rank and recall were chosen as evaluation measure. Direct comparison to a machine learning method has shown that this method is definitely competitive. Thus we can conclude that the enriched version of the SWD provides high quality information with a broad coverage for classification of German scientific articles.

Studienprojekt Stadtentwicklung Sarstedt

Der Bericht dieses interdisziplinären Studienprojekts "Stadtentwicklung Sarstedt" stellt einen Überblick über die Grundzüge und die aktuelle Lage des Makrostandorts Sarstedt dar. Dabei werden demographische Entwicklungen und sozioökonomische Rahmendaten mit einbezogen, die die Basis bieten, um Tendenzen für die Zukunft des Zusammenlebens des Menschen im Wirtschaftsraum des Mittelzentrums der Stadt Sarstedt ableiten zu können. Ein besonderer Fokus des Projektberichts liegt auf der Untersuchung des Einzelhandels mit den verschiedenen Facetten der Kaufkraft, Nachfrage, Fläche und diverser Potentialsermittlungen.