Soizick Lesteven

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SIMBAD is the reference database for identification and bibliography of astronomical objects. It contains identifications, ‘basic data’, bibliography, and selected observational measurements for several million astronomical objects. SIMBAD is developed and maintained by CDS, Strasbourg. Building the database contents is achieved with the help of several(More)
We describe results obtained in prototyping a Kohonen self-organising feature map as a user interface to a large document collection. We then discuss the provision of various tools which will be used in quality control of databases and catalogs produced from, and cross-referenced with, the online astronomical literature; and which will be used in future(More)
The astronomical database SIMBAD developed at the Centre de Donn ees de Strasbourg CDS currently contains about one million objects stellar and non stellar all described by heterogeneous data bibliographical references measurements and identi ers SIMBAD supplies the existing links between the di erent synonym names of one object and describes astronomical(More)
The explosion of on-line services and the rapid evolution in information technology, with the advent of the WWW, gives its full dimension to the electronic publication. Electronic publication has to be conceived with links to external resources (databases, bibliographic services) and with intelligent information retrieval tools. To provide links one needs(More)
The Centre de Données astronomiques de Strasbourg (CDS) provides homogeneous access to heterogeneous information of various origins: information about astronomical objects in Simbad; catalogs and observation logs in VizieR and in the catalogue service; reference images and overlays in Aladin; nomenclature in the Dictionary of Nomenclature; Yellow Page(More)
We have developed and used the “CDS document map” based on neural networks (Kohonen maps) http://simbad.u-strasbg.fr/A+A/map.pl In this self-organizing map, documents are gradually clustered by subject themes. The tool is based on keywords associated with the documents. For one selected document, we locate it on the CDS document map and retrieve articles(More)
The Centre de Données astronomiques de Strasbourg (CDS) develops a set of value-added services, widely used for information retrieval, observation preparation, data interpretation, ... SIMBAD, VizieR, Aladin, and the ‘Dictionary of Nomenclature’, integrate heterogeneous, selected information from observatory archives, sky surveys and publications. Each(More)
The Centre de Données astronomiques de Strasbourg (CDS) provides homogeneous access to heterogeneous information of various origins: information about astronomical objects in SIMBAD; catalogs and observation logs in VIZIER and in the catalogue service; reference images and overlays in ALADIN; nomenclature in the Dictionary of Nomenclature; Yellow Page(More)
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