CubeViz: The RDF DataCube Browser.

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CubeViz is a facetted browser for statistical data utilizing the RDF Data Cube vocabulary which is the state-of-the-art in representing statistical data in RDF. This vocabulary is compatible with SDMX and increasingly being adopted. Based on the vocabulary and the encoded Data Cube, CubeViz is generating a facetted browsing widget that can be used to filter interactively observations to be visualized in charts. Based on the selected structure, CubeViz offer beneficiary chart types and options which can be selected by users.

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In order to hide the complexity of the RDF Data Cube vocabulary from users and to facilitate the browsing and exploration of DataCubes we developed the RDF DataCube browser CubeViz. CubeViz can be divided into two parts, both developed as an extension of OntoWiki:

  1. Faceted data selection component, which queries the structural part of a selected RDF graph containing DataCube resources.
  2. Chart visualization component, which queries observations (selected by the faceted selection component) and visualize them with suitable charts.

CubeViz renders facets according to the DataCube vocabulary to select data on the first component, using SPARQL as the query language. Currently, the following facets are available:

  1. Selection of a DataCube DataSet
  2. Selection of a DataCube Slice
  3. Selection of a specific measure and attribute (unit) property encoded in the respective DataCube dataset.
  4. Selection of a set of dimension elements that are part of the dimensions encoded in the respective DataCube data set

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News

Highlights of the 1st Meetup on Question Answering Systems – Leipzig, November 21st ( 2014-11-24T10:09:09+01:00 by Ali Khalili)

2014-11-24T10:09:09+01:00 by Ali Khalili

On November 21st, AKSW group was hosting the 1st meetup on “Question Answering” (QA) systems. In this meeting, researchers from AKSW/University of Leipzig, CITEC/University of Bielefeld, Fraunhofer IAIS/University of Bon, DERI/National University of Ireland and the University of Passau presented the recent results of their work on QA systems. Read more about "Highlights of the 1st Meetup on Question Answering Systems – Leipzig, November 21st"

Announcing GERBIL: General Entity Annotator Benchmark Framework ( 2014-11-20T10:08:33+01:00 by Ricardo Usbeck)

2014-11-20T10:08:33+01:00 by Ricardo Usbeck

Dear all, We are happy to announce GERBIL – a General Entity Annotation Benchmark Framework, a demo can be found at! With GERBIL, we aim to establish a highly available, easy quotable and liable focal point for Named Entity Recognition and Named Entity Disambiguation (Entity Linking) evaluations: GERBIL provides persistent URLs for experimental settings. Read more about "Announcing GERBIL: General Entity Annotator Benchmark Framework"

@BioASQ challenge gaining momentum ( 2014-11-17T15:29:24+01:00 by Ricardo Usbeck)

2014-11-17T15:29:24+01:00 by Ricardo Usbeck

BioASQ is a series of challenges aiming to bring us closer to the vision of machines that can answer questions of biomedical professionals and researchers. The second BioASQ challenge started in February 2013. It comprised two different tasks: Large-scale biomedical semantic indexing (Task 2a), and biomedical semantic question answering (Task 2b). Read more about "@BioASQ challenge gaining momentum"

AKSW successful at #ISWC2014 ( 2014-10-28T17:03:42+01:00 by Ricardo Usbeck)

2014-10-28T17:03:42+01:00 by Ricardo Usbeck

Dear followers, 9 members of AKSW have been participating at the 13th International Semantic Web Conference (ISWC) at Riva del Garda, Italy. Read more about "AKSW successful at #ISWC2014"

AKSW internal group meeting @ Dessau ( 2014-10-23T02:07:29+02:00 EdgardMarx)

2014-10-23T02:07:29+02:00 EdgardMarx

Recently AKSW members were at the city of Dessau for an internal group meeting. The meeting took place between 8th and 10th of October, in the modern university of architecture of Bauhaus were we also stayed hosted. Bauhaus is located in the city of Dessau, about one hour from Leipzig. Read more about "AKSW internal group meeting @ Dessau"