The Semantic Puzzle

Andreas Blumauer

Linked data based search: Make use of linked data to provide means for complex queries

Two live demos of PoolPartyWeb based ontology manager which can serve as a central hub for your knowledge organization. With PoolParty you can organize and maintain knowledge models based on widely accepted specifications like RDF, SPARQL and SKOS. Semantic Integrator demonstrate new ways to retrieve information based on linked data technologies

data visualisation

Linked data graphs can be used to annotate and categorize documents. By transforming text into RDF graphs and linking them with LODLinked Open Data (LOD) stands for freely available data on the World Wide Web, which can be identified via Uniform Resource Identifier (URI) and can be accessed and retrieved directly via HTTP. Finally link your data to other data to provide context. like DBpediaDBpedia is a project aiming to extract structured information from the information created as part of the Wikipedia project. This structured information is then made available on the World Wide Web. DBpedia allows users to query relationships and properties associated with Wikipedia resources, ..., GeonamesGeoNames is a geographical data base available and accessible through various Web services, under a Creative Commons attribution license., MeSH etc. completely new ways to make queries over large document repositories become possible.

An online-demo illustrates those principles: Imagine you were an information officer at the Global Health Observatory of the World Health Organisation. You inform policy makers about the global situation in specific disease areas to direct support to the required health support programs. For your research you need data about disease prevalence in relation with socioeconomic factors.

Datasets and technology

About 160.000 scientific abstracts from PubMed, linked to three different disease categories were collected. Abstracts were automatically annotated with PoolParty Extractor, based on terms from the Medical Subject Headings (MeSH) and GeonamesGeoNames is a geographical data base available and accessible through various Web services, under a Creative Commons attribution license. that are organized in a SKOSSimple Knowledge Organization System (SKOS) is a family of formal languages designed for representation of thesauri, classification schemes, taxonomies, subject-heading systems, or any other type of structured controlled vocabulary. SKOS is built upon RDF and RDFS, and its main objective is to ... thesaurusA thesaurus is a book that lists words grouped together according to similarity of meaning, in contrast to a dictionary, which contains definitions and pronunciations. The largest thesaurus in the world is the Historical Thesaurus of the Oxford English Dictionary, which contains more than ..., managed with PoolParty Thesaurus Server. Abstracts were transformed to RDF and stored in Virtuoso RDF store. In the next step, it is easy to combine these data sets within the triple store with large linked data sources like DBPedia, Geonames or Yago. The use of linked data makes it easy to e.g. group annotated countries by the Human Development Index (HDI). The hierarchical structure of the thesaurus was used to collect all concepts that are connected to a specific disease.

This demo was developed based on the librariesUmbrella term for Libraries related to RDF. sgvizler to visualize SPARQL results. AngularJS was used to dynamically replace variables in SPARQL query templates.

Another example of linked data based search in the field of renewable energy can be tried out here.

Links:

Thomas Thurner

European Data Forum’s Call for Contributions

Flyer2014_150_200The European Data Forum (EDF) is an annual meeting place for industry, research, policy makers, and community initiatives to discuss the challenges and opportunities of data in EuropeEurope is, by convention, one of the world's seven continents. Comprising the westernmost peninsula of Eurasia, Europe is generally divided from Asia to its east by the water divide of the Ural Mountains, the Ural River, the Caspian Sea, the Caucasus Mountains, and the Black Sea to the ..., especially in the light of recent developments such as Open Data, Linked Data and Big Data.

EDF 2014 will be held in Athens, GreeceGreece, officially the Hellenic Republic (Ellīnikî Dīmokratía), is a country in Southeast Europe. Athens is the nation's capital and largest city, its metropolitan area also including the municipality of Piraeus. According to the 2011 census, Greece's population is slightly less than 11 ... on March 19-20, 2014. The program will consist of a mixture of presentations, panels and networking sessions by industry, academics, policy makers, and community initiatives. Topics will cover a wide spectrum of research and technology development, applications, and socio-economic aspects of the data value chain.

Call for Contributions

EDF 2014 is seeking inspiring presentations addressing the topics listed below:

  • Innovative research and technology for Open Data, Linked Data and Big Data
  • Applications
  • Socio-economic and policy issues
  • Data visions for the future

Proposals for presentations should be submitted as a single PDF file at https://www.easychair.org/conferences/?conf=edf2014 or sent via e-mail to edf2014@data-forum.eu. Proposals will be reviewed by the Organizing Committee of EDF 2014 according to their relevance to the scope and purpose of the event.

Important Dates

  • Submission of proposals:  December 10 2013, 22.00pm CET
  • Notification of acceptance or rejection: early January 2014
  • Full EDF2014 program available: end of January 2014

Download the Call for Contributions in pdf format.

Thomas Thurner

Bruno Eugster: ‘How to bring already pre-filtered information to the employee’s desk’

0adf38aa6.11669486,3In recent years, PoolPartyWeb based ontology manager which can serve as a central hub for your knowledge organization. With PoolParty you can organize and maintain knowledge models based on widely accepted specifications like RDF, SPARQL and SKOS. team has not only worked on the major release PoolParty 4. It also developed a network of experts as its partner organizations, which deliver services for system integration (e.g. SharePoint, FirstSpirit, IntraFind etc.), taxonomyTaxonomy is the practice and science of classification. The word finds its roots in the Greek τάξις, taxis (meaning 'order' or 'arrangement') and νόμος, nomos (meaning 'law' or 'science'). Taxonomy uses taxonomic units, known as taxa. In addition, the word is also used as a count noun: ... and thesaurus management, and to develop infrastructure for the corporate semantic web. DTI AG is one of those partners which are acting globally as an interface between PoolParty team and the customers. Andreas BlumauerAndreas Blumauer studied Computer Sciences and Business Administration and started his career as a software developer for financial services. In 1998 he co-founded punkt.net Services, a specialised software company, which has developed several national and international knowledge platforms. He ... talked with Bruno Eugster, CEO at DTI AG, based in Switzerland.

Blumauer: How do semantic technologies fit into your overall strategy, do you believe they are ‘the next big thing’?

Eugster: DTI AG focuses on projects to improve information access and search, where semantic technologies play an ever important role. In this respect, semantic technologies are one of the next “big things”. Only if computers will understand crawled content, as well as the needs of the information seeker, the user will be able to get the right information in time. This is the key challenge which semantic technology will help to meet.

Blumauer: Which kind of projects in the field of semantic technologies do you mainly support? What are the business cases in such projects?

Eugster: Everywhere where information workers drive customer’s business, semantic technologies are of great help to get precise hits in time. This is the case for DTI’s projects in the sectors of enterprise search, knowledge management, eDiscovery, legal investigations as well as in government, pharma, finance, and insurance industry.

Blumauer: How do your customers benefit from PoolParty technologies? Why did you decide to develop a partnership with Semantic Web CompanyThe Semantic Web Company (SWC), based in Vienna, provides companies, institutions and organizations with professional services related to the Semantic Web, semantic technologies and Social Software?

Eugster: In our days, where loads of information dislocated in countless data silos, it’s enormously important to bring already pre-filtered information to the employee’s desk. As each employee has it’s own requirements to given information – depending on his role and job. PoolParty allows to enrich the information with these contexts. At DTI AG,  we have found a dynamic and innovative technology partner with PoolParty, to achieve customer demands in information access and search.

ABOUT

Bruno Eugster is founder of DTI AG which is an independent solution provider in the field of intelligent information search and retrieval. Their target markets are media, financial, life sciences and government.

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Thomas Thurner

I-SEMANTICS 2013: Kai Holzweissig about Daimler’s Linked Data Projects

“Product development is an information intensive process, which relies heavily on the division of labor. Thus, product development is not only of high cognitive, but also of high social complexity. Employees in product development possess different “thought worlds” of the product, its components and its development process, that is, they see the product differently. These different “thought worlds” cause communication – and consequently collaboration, which is the topmost success factor in product development – to break down.”

At this years I-Semantics Kai Holzweissig describes the use of controlled vocabularies and product development process reference models at Daimler. The use of controlled vocabularyControlled vocabularies provide a way to organize knowledge for subsequent retrieval. They are used in subject indexing schemes, subject headings, thesauri and taxonomies. Controlled vocabulary schemes mandate the use of predefined, authorised terms that have been preselected by the designer of ... and the corresponding process reference model as a “discursive anchor” gives employees at Daimler a toolset to harmonize their “thought worlds”. This can result in higher efficiency and effectiveness in product development by fostering inter-departmental collaboration.

About Dr. Kai Holzweissig

He has an educational background in Informatics (PhD) and Cognitive Science (MSc). During his time at University he was awarded scholarships from SIEMENS AG and the Friedrich Naumann Foundation for Freedom. From 2007 to 2011 Kai worked at the Project Management Office at Daimler Trucks. Since 2011 he works for the Chief Technology Officer (CTO) at Daimler’s central IT department. Kai’s technical interests include: Contextual Informatics, Interaction Design, Social Software Theory and Linked Data. Kai is a lecturer for Interactive Systems at Reutlingen University.

 

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