Linked Open Data: conversion and visualization

Micsik András <>
MTA SZTAKI

Turbucz Sándor <>
MTA SZTAKI

Tóth Zoltán <>
MTA SZTAKI

Sziládi Zoltán <>
Nokia Solutions and Networks

SZTAKI has been operating its lod.sztaki.hu service since 2011, which contains metadata about various Hungarian cultural assets in LOD format. These data were collected during the previous HEKTÁR and NDA projects, and were converted from XML into RDF for LOD publication. We wanted to enable users to browse our data comfortably, therefore we built LODmilla, a new Javascript-based browser, which presents LOD datasets both as a graph and a data record at the same time. The basic functions of the software include zooming, panning the graph view, opening or moving nodes, but it also contains social functions such as saving a graph view and sharing with others. Some more complex functions were implemented as well, such as path search between selected nodes, and searching neighbours of specific type. Data properties and links of a node can be browsed as a text list. The LODmilla service and its source code are open, and due to the generic implementation it can be tested with any other LOD dataset.