Last two weeks were full of great links and resources, here you are:
I know, it is not really a info graphic but the term ‘research project poster’ is not that ‘en vogue’ in the web :) I made it last week as a last-minute-job for the LOD2 lifecycle. Sebastian Tramp is currently at the ESWC 2012 in Crete, attending there at the EU Project networking track to represent the LOD2 project.
The lifecycle is taken from the slides “The Semantic Data Web” by Sören Auer from AKSW/Uni Leipzig. Text was also written by Sören. As the explanations on the poster aren’t that big, I add the texts here:
The lifecycle is supported by tools of the the Debian-based LOD2 Stack.
RDF is the lingua franca for data integration on the Web. Other data structures, semi-structured and even unstructured information, however, are and will be always there as well. In LOD2 we develop techniques for mapping and accessing such information efficiently and effectively.
Tools: Triplify, D2R Server, DBpedia Extraction
RDF Data Mangement is still more challenging than relational Data Mangement. We aim to close this performance gap by employing column-store technology, dynamic query optimization, adaptive caching of joins, optimized graph processing, cluster/cloud scalability.
Tools: Openlink Virtuoso
LOD2 facilitates the authoring of rich semantic knowledge bases, by leveraging Semantic Wiki technology, the WYSIWIM paradigm (What You See Is What You Mean) and distributed social, semantic collaboration and networking techniques.
Creating and maintaining links in a (semi-)automated fashion is still a major challenge and crucial for establishing coherence and facilitating data integration. We aim at linking approaches yielding high precision and recall, which configure themselves automatically or based on end-user feedback.
Tools: Silk, LIMES, SemFM
Linked Data on the Web is mainly raw instance data. For data integration, fusion, search and many other applications, however, we need this raw instance data to be linked and integrated with upper level ontologies.
The quality on the Data Web is varying as the quality on the document web varies. LOD2 develops techniques, which help to assess the quality based on characteristics such as provenance, context, coverage or structure.
Tools: WIQA, LODStats, LDIF Data Integration
Data on the Web is dynamic. We need to facilitate the evolution of data while keeping things stable. Changes and modifications to knowledge bases, vocabularies and ontologies should be transparent and observable. LOD2 also develops methods to spot problems in knowledge bases and to automatically suggest repair strategies.
Tools: ORE, OntoWiki EvoPat
For many users Data Web is still invisible below the surface. LOD2 develops search, browsing, exploration and visualization techniques for different kinds of Linked Data (i.e. spatial, temporal, statistic), which make the Data Web sensible for real users.
Tools: CubeViz, Sig.ma EE, Spatial Semantic Browser
LOD2 is a large-scale integrating project co-funded by the European Commission within the FP7 Information and Communication Technologies Work Programme. Started 2010 it is planned for 4 years, comprises leading Linked Open Data technology researchers, companies, and service providers from across 11 European countries and one associated partner from Korea, it is coordinated by the AKSW research group at the University of Leipzig.
This link digest is more like a link huddle, fitting the image that is indeed not a picture take by the NASA, some may recognize it from the 360-degree panoramic image of the Milky Way. Back to the links:
Because of my extended weekend in Berlin and at the seaside I did not put together my Link Digest last week, that’s the reason to look back to my top bookmarks of the last two weeks now.
Type is the foundation of print and web design. Everything you need to know about thinking with type, you will find here. This richly detailed update to the classic text belongs on the shelf of every designer, writer, editor, publisher, and client. (Jefferey Zeldman)
I’ve joined Geekli.st last week, just for fun. “Geekli.st is an achievement-based social portfolio builder where all bad-ass code monkeys around the globe can communicate, brag, build their street cred and get found. It was time for a united front, exclusively for developers, to build tangible credibility in the workplace.” I have an invite link to the beta program for you, just in case. Join (and maybe follow me) at http://geekli.st/haschek
It doesn’t matter how you call it: Semantic Web, Web 3.0, Web of Data, or Internet of Things. Some of them may be synonyms, some of them may be differ in tiny meanings, but all of them are build on resources, their reachable identifiers and relations between those resources: Linked Data. If you put this data into the public space, making it accessible to everyone, you got Linked Open Data, and probably 1 mio ways how people use and combine it, creating new possibilities and advantages.
Europeana has created a video explaining Linked Open Data and its benefits. Europeana utilizes Linked Data for its goals:
Europeana is Europe’s multilingual digital library, museum and archive. It gives people free access to millions of books, paintings, films, sounds, museum objects and archives that have been digitised throughout Europe. Visit europeana.eu and see what you can discover from the collections of over 1,500 organisations, including major international organisations like the Louvre and the British Museum. (Europeana @ Vimeo)
Europeana built up a Linked Open Data space containing
open (licensed under CC0 Public Domain Dedication) metadata on 2.4 million texts, images, videos and sounds gathered by Europeana. These objects come from data providers who have reacted early and positively to Europeana’s initiative of promoting more open data and new data exchange agreements. These collections come from 8 direct Europeana providers encompassing over 200 cultural institutions from 15 countries. (Europeana Linked Open Data)
Based on this data Europeana provides a professional knowledge-sharing platform, as well as a simple search interface to dig deep into all the collected items. One of the items is a matchbox, a piece of the story about Bernard Darley and Otto Arndt, happened during World War One. Europeana created a new project related to WW1, collecting all small items and pieces across Europe to create a bigger picture, even on a personal level like that one of Darley and Arndt:
During World War One, two soldiers became friends. One was German, the other English. This film – ‘Otto & Bernard’ – tells their story. It also features the modern quest of a young German student, trying to discover if she is related to Otto.
The movie itself reminds me a little bit on bad daily soap TV shows but it is a good demonstration how Linked Open Data can affect lives. Without publicly access, Luisa Arndt would never known anything about the matchbox. Even if the story of the movie would be 100% constructed it plots a real world example. The Europeana blog provides some additional info about the movie. The Remix version of that movie makes use of visually inserted links for almost everything (e.g. pictures) in the movie. If you can imagine that a meta description of that movie could contain time codes and relations to all that used images (and the depictured things itself) you now know what Linked Data is.