Posts Tagged ‘Resource Description Framework’

LinkedISA: Semantic Representation of ISA-Tab Experimental Metadata

isaReporting and sharing experimental metadata- such as the experimental design, characteristics of the samples, and procedures applied, along with the analysis results, in a standardised manner ensures that datasets are comprehensible and, in principle, reproducible, comparable and reusable. Furthermore, sharing datasets in formats designed for consumption by humans and machines will also maximize their use. Read more

Introduction to: RDF

Hello, My Name is... RDFRDF stands for Resource Description Framework and it is a flexible schema-less data model. Do not confuse or compare it with XML (more about this later)! It is one of the core technologies of the Semantic Web and the current W3C standard to represent data on the web. But what is RDF exactly?
 
As I mentioned, it is a data model. It can be compared to the relational model which is the way you organize data in a relational database: group related things in tables with attributes, create links between tables, etc. RDF is just another way of organizing your data. In which way? As a graph.

AGUIA: autonomous graphical user interface assembly for clinical trials … – 7thSpace Interactive (press release)

AGUIA: autonomous graphical user interface assembly for clinical trials
7thSpace Interactive (press release)
AGUIA uses a semantic web formalism, resource description framework (RDF), and a bottom-up design of knowledge bases that employ the S3DB tool as the

Directgov tech chief joins Open University as CIO – Information Age

Directgov tech chief joins Open University as CIO
Information Age
“We are using the resource description framework (RDF) [semantic web] standard to allow local authorities to describe the vacancies on their own systems,

“RDF Next Steps” – Workshop organized by W3C

W3C is organizing a Workshop on the Next Steps for RDF around June 2010; we will announce the exact dates and location as soon as possible.

Since its publication in 2004, the Resource Description Framework (RDF) has become the core architectural block of the Semantic Web. The standard is now widely deployed in terms of tools and applications. Due to this wide deployment, additional R&D activities, and the publication of newer standards (e.g., SPARQL, OWL, POWDER, and SKOS), a number of issues regarding RDF have come to the fore. Workshop articipants will discuss these issues and help determine whether it is time for a new version of RDF. W3C Membership is not required to participate in the Workshop, but each participant must be associated with an accepted position paper. The deadline for position papers is 29 March 2010; see the Call for Participation for more information.

Updates (including the exact date and location of the Workshop) will be added to the Call for Participation and will be announced on the Semantic Web Activity News Blog.

October 2009: The Semantic Web Gang discuss RDF

Podcast Link
In October’s episode of the Semantic Web Gang, regular Gang members discuss the relationship between the Resource Description Framework (RDF) and the Semantic Web.

Bookmark It

Original Article

Improving Access to Government Data on the Web – CMSWire

Improving Access to Government Data on the Web
CMSWire
a long way to go before we can start to leverage the really interesting technologies like Resource Description Framework (RDF) and the Semantic Web.

OpenStructs Announced

CORALVILLE, IA, June 16, 2009 – As part of a broader set of product announcements, Structured Dynamics today unveiled openstructs.org, an education and distribution site dedicated to open source software for converting, managing, viewing and manipulating structured data. Structured data can represent any existing data struct from the simplest attribute-value pair formats to fully specified relational database schema. 

"We believe open source frameworks are the only way moving forward to finally achieve data interoperability," said Frédérick Giasson, lead developer of the products announced by Structured Dynamics LLC and its CTO. "Our intent is that OpenStructs become a central distribution point for our own open source software as well as the contributed data ‘structs’ that support it," Giasson said. He went on to explain that ‘structs’ are the small structured data frameworks for converting data from one form to another, for templates to display data in various structured ways, and for extracting structured data from documents and Web pages.

All OpenStructs tools are premised on the canonical RDF (Resource Description Framework) data model. OpenStructs tools either convert existing data structures to RDF, extract structure from content as RDF, or manage and manipulate RDF. All OpenStructs tools and approaches are compliant with existing open standards from the W3C. The intent is to achieve maximum data and software interoperabililty.

The main software distribution from OpenStructs is structWSF, a platform-independent Web services framework for RDF. It is paired with the conStruct module that links Drupal to this framework while leveraging existing Drupal capabilities. structWSF provides a standard suite of Web services, a means to access and manage datasets, and hooks to underlying structured data stores and full-text search engines.

"Our [structWSF] Web services framework is middleware that either provides direct endpoint access to structured RDF data or bridges between RDF data stores and conventional apps and content management systems," said Giasson. "We think its combination of RDF, datasets and Web-oriented architecture, based on a design of access and use rights, will provide an infrastructure for enterprises to interoperate their own data with growing public sources," he said. "The framework is still a bit raw but the promise is huge; with an open source release maybe we can light a fire to burn down many historic barriers."

structWSF

structWSF is a platform-independent Web services framework for accessing and exposing structured RDF data. Its central organizing perspective is that of the dataset. These datasets contain instance records, with the structural relationships amongst the data and their attributes and concepts defined via ontologies (schema with accompanying vocabularies).

The structWSF middleware framework is fully RESTful in design and is based on HTTP and Web protocols and open standards. The initial structWSF framework comes packaged with a baseline set of about a dozen Web services in CRUD, browse, search and export and import.

All Web services are exposed via APIs and SPARQL endpoints. Each request to an individual Web service returns an HTTP status and optionally a document of resultsets. Each results document can be serialized in many ways, and may be expressed as either RDF or pure XML.

In initial release, structWSF has direct interfaces to the Virtuoso RDF triple store (via ODBC, and later HTTP) and the Solr faceted, full-text search engine (via HTTP). However, structWSF has been designed to be fully platform-independent. The framework is open source (Apache 2 license) and designed for extensibility.

conStruct SCS

conStruct SCS is a structured content system that extends the basic Drupal content management framework. conStruct enables structured data and its controlling vocabularies (ontologies) to drive applications and user interfaces.

Users and groups can flexibly access and manage any or all datasets exposed by the system depending on roles and permissions. Report and presentation templates are easily defined, styled or modified based on the underlying datasets and structure. Collaboration networks can readily be established across multiple installations and non-Drupal endpoints. Powerful linked data integration can be included to embrace data anywhere on the Web.

conStruct provides Drupal-level CRUD (create – read – update – delete), data display templating, faceted browsing, full-text search, and import and export over structured data stores based on RDF. Depending on roles and permissions, a given user may or may not see specific datasets or tools within the Drupal interface. Search and browse results are similarly sequestered depending on access rights.

Unveiled at SemTech 2009

Structured Dynamics unveiled and demoed the two products today at the 2009 Semantic Technology Conference in San Jose California. SD’s CEO, Michael Bergman, did so during his talk on, “BKN: Building Communities through Knowledge, and Knowledge Through Communities.” SemTech 2009 is a premier semantic Web event, which has been steadily growing and now exceeds 1000 attendees.

Sponsorship and Further Details

structWSF has been under development by Structured Dynamics for some time. Its linkage and incorporation within the Drupal system has more recently been supported by the Bibliographic Knowledge Network (BKN).

BKN is a major, two-year, NSF-funded project jointly sponsored by the University of California, Berkeley, Harvard University, Stanford University, and the American Institute of Mathematics, with broad private sector and community support. BKN is developing a suite of tools and infrastructure for citations and bibliographies within the mathematics and statistics domain based on semantic technologies for professionals, students or researchers to form new communities.

An alpha version of structWSF will be released for download from the OpenStruct (http://openstructs.org) Web site on June 30. The conStruct system will be released at the same time under GPL license. See its home site at http://constructscs.com or within the Drupal module system (http://drupal.org/project/construct).

Cambridge Semantics Launches Semantic Platform and Tools for Non-Technical Users; Includes Excel Plug-in and Web Front-End

Semantic Technology for the Masses – Rapid Enterprise-Wide Deployment; Easy to Link, Browse and Analyze Content from Multiple, Disparate Sources and Formats

San Jose, Calif., June 16, 2009 (2009 Semantic Technology Conference – Booth #114)

Cambridge Semantics, the leading provider of practical semantic solutions, introduced its new Anzo platform and tools designed to make semantic technology practical and accessible for a broad range of users across all industries. Easy-to-use browser-based tools and a plug-in that allows semantic linking of spreadsheets from within Microsoft Excel(r) itself, make the Anzo suite the first enterprise-class semantic technology solution designed for non-technical users.

"Semantic technology enables a whole new level of collaboration around data that was just not viable without it," said Mike Cataldo, Cambridge Semantics Chief Executive Officer. "Just the ability to liberate data from spreadsheets so that it is easily combined and consumed by users and other applications, has a gigantic impact. Whether the challenge is compiling weekly sales figures from dozens of subsidiaries or collecting and uploading assay results from research partners around the world, these tasks require endless copying, importing, normalizing and updating-we automate that entire process. More than that, when any user can combine and analyze data from multiple systems regardless of source or structure, it creates a whole new level of organizational intelligence and business agility."

Book of Odds Using Anzo Suite to Build Innovative Web-based Resource

One of the first companies to use the new Anzo Suite is Book of Odds Enterprises, Inc., a start-up company launching a one-of-a-kind Website to make the odds of everyday life easily accessible. This groundbreaking site will leverage semantically linked and cross referenced content from hundreds of sources in order to create a fundamentally new reference source.

"The Cambridge Semantics’ suite has allowed Book of Odds to build a rich semantic database linking content from a wide array of sources and formats in order to create a powerful statistical reference tool which will be accessible to the general public," said Amram Shapiro, Founder and President, Book of Odds. "Our technical team has a solid foundation in semantic technologies and spent significant time studying our options. We concluded that Cambridge Semantics offers not only the most powerful semantic platform, but also the most practical tools. That translated into a rapid and efficient implementation."

The Anzo Suite

The Anzo Suite includes three components: Anzo for Excel, Anzo for the Web and The Anzo Data Collaboration Server. Using the suite, organizations of any size can deploy an enterprise-wide semantic fabric in just days, allowing users to quickly link internal and external data sources such as databases and spreadsheets, making the combined data easy to manipulate and cross reference, and eliminating time-consuming and repetitive data gathering tasks.

The Anzo Suite includes:

Anzo Data Collaboration Server

The fundamental semantic middleware that supports the Anzo application suite and manages all enterprise data linked to the semantic fabric to:

  • Virtualize data from linked applications;
  • Store data as needed in Resource Description Framework (RDF) or legacy databases;
  • Enable secure, integrated access to existing and new data sources;
  • Promote real-time collaboration, distributed query, new metadata and functionality for existing applications.

The Anzo Data Collaboration Server also includes a family of APIs and mapping tools called Anzo Connectors, which facilitate connecting relational databases, enterprise directory servers and Web services/SOA systems to the Anzo Data Collaboration Server to:

  • Keep data where it is today to guarantee accuracy and accountability-a single source of truth;
  • Display data from legacy systems in integrated views alongside content from other systems;
  • Reflect changes and updates to data in the systems that house the original data.

Anzo for Excel

A plug-in for Microsoft Excel that allows users to easily link spreadsheets to the Anzo Data Collaboration Server to:

  • Enable data from multiple spreadsheets to easily be combined and viewed in:
    • A consolidated spreadsheet;
    • Web applications created with Anzo on the Web;
  • Use Excel as a user interface for data from other applications;
  • Upload Excel data to legacy applications, databases and other spreadsheets;
  • Create linked Excel templates that collect and automatically integrate Excel data.

Anzo on the Web

A browser-based modeling and analytical front-end for creating customized views of any data from any systems connected to the Anzo Data Collaboration Server, allows users to:

  • Mash up views of information;
  • Create intelligent lenses appropriate for the data;
  • Build applications that interact in real-time with source applications.

The new products were announced at SemTech 2009, the world’s largest conference on semantic technologies, held from June 14th through the 18th at the Fairmont Hotel in San Jose, California.

SKOS is a W3C Proposed Recommendation

The Semantic Web Deployment Working Group has published the Proposed Recommendation of SKOS Simple Knowledge Organization System Reference. SKOS provides a common data model for sharing and linking knowledge organization systems via the Web. SKOS is a vocabulary for expressing the basic structure and content of concept schemes such as thesauri, classification schemes, subject heading schemes, taxonomies, folksonomies, and other similar types of controlled vocabulary. As an application of the Resource Description Framework (RDF), SKOS allows concepts to be composed and published on the World Wide Web, linked with data on the Web and integrated into other concept schemes. Along with this publication of the SKOS Reference Proposed Recommendation the Working Group has published an updated SKOS Primer Working Draft. Comments are welcome through 15 July.

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