FAGI-gis: fusing geospatial RDF data [via Geospatial Semantic Web Community Group]

GeoKnow introduces the latest version of FAGI-gis, a framework for fusing Linked
Data, that focuses on the geospatial properties of the linked entities. FAGI-gis
receives as input two datasets (through SPARQL endpoints) and a set of links
that interlink entities between the datasets and produces a new dataset where
each pair of linked entities is fused into a single entity. Fusion is performed
for each pair of matched properties between two linked entities, according to a
selected fusion action, and considers both spatial and non-spatial properties.

The tool supports an interactive interface, offering visualization of the data
at every part of the process. Especially for spatial data, it provides map
previewing and graphical manipulation of geometries. Further, it provides
advanced fusion functionality through batch mode fusion, clustering of links,
link discovery/creation, property matching, property creation, etc.

As the first step of the fusion workflow, the tool allows the user to select and
filter the interlinked entities  (using the Classes they belong to or SPARQL
queries) to be loaded for further fusion. Then, at the schema matching step, a
semi-automatic process facilitates the mapping of entity properties from one
dataset to the other. Finally, the fusion panel allows the map-based
manipulation of geometries, and the selection from a set of fusion actions in
order to produce a final entity, where each pair of matched properties are fused
according to the most suitable action.



The above process can be enriched with several advanced fusion facilities. The
user is able to cluster the linked entities according to the way they are
interlinked, so as to handle with different fusion actions, different clusters
of linked entities. Moreover, the user can load unlinked entities and be
recommended candidate entities to interlink. Finally, training on past fusion
actions and on OpenStreetMap data, FAGI-gis is able to recommend suitable fusion
actions and OSM Categories (Classes) respectively, for pairs of fused entities.

The FAGI-gis is provided as free software and its current version is available
from GitHub. An introductory user guide is also available. More detailed
information on FAGI-gis is provided int he following documents:

 FAGI-gis: A tool for fusing geospatial RDF data

 FAGI: A Framework for Fusing Geospatial RDF Data
 Fusing of geographic features
 Fusing of Geospatial Metadata
 Fusing of Geospatial Relations



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'FAGI-gis: fusing geospatial RDF data'

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Received on Monday, 5 October 2015 13:33:55 UTC