PUBLIC MARKS from clochix with tag semantic_web

The geonames.org geographical database is available for download free of charge under a creative commons attribution license. It contains over eight million geographical names and consists of 6.2 million unique features whereof 2.2 million populated places and 1.8 million alternate names. All features are categorized into one out of nine feature classes and further subcategorized into one out of 645 feature codes. (more statistics ...). The data is accessible free of charge through a number of webservices and a daily database export. Geonames is integrating geographical data such as names, altitude, population and others from various sources. All lat/long coordinates are in WGS84 (World Geodetic System 1984). Users may manually edit, correct and add new names using a user friendly wiki interface.

GRDDL is a mechanism for Gleaning Resource Descriptions from Dialects of Languages. This GRDDL specification introduces markup for declaring that an XML document includes gleanable data and for linking to an algorithm, typically represented in XSLT, for gleaning the resource descriptions from the document.

Grâce au « Gleaning Resource Descriptions from Dialects of Languages » (littéralement « glanage des descriptions de ressources à partir des dialectes de langages ») ou GRDDL (à prononcer « griddeul »), les logiciels peuvent automatiquement extraire les informations des pages Web structurées pour les intégrer au Web sémantique.