Suchmaschinen-Datenbank.de − Suchmaschinen Liste, Übersicht Online Access (Navigation privée) The DBpedia data set can be accessed online via a SPARQL query endpoint and as Linked Data. 1. Querying DBpedia The DBpedia data set enables quite astonishing query answering possibilities against Wikipedia data. 1.1. There is a public SPARQL endpoint over the DBpedia data set at OpenLink Virtuoso as the back-end database engine. There is a list of all DBpedia data sets that are currently loaded into the SPARQL endpoint. You can ask queries against DBpedia using: the Leipzig query builder at the OpenLink Interactive SPARQL Query Builder (iSPARQL) at the SNORQL query explorer at (does not work with Internet Explorer); or any other SPARQL-aware client(s). Fair Use Policy: Please read this post for information about restrictions on the public DBpedia endpoint. 1.2. There is a public Faceted Browser “search and find” user interface at 1.3. here. 1.4.
RelFinder - Visual Data Web Are you interested in how things are related with each other? The RelFinder helps to get an overview: It extracts and visualizes relationships between given objects in RDF data and makes these relationships interactively explorable. Highlighting and filtering features support visual analysis both on a global and detailed level. The RelFinder is based on the open source framework Adobe Flex, easy-to-use and works with any RDF dataset that provides standardized SPARQL access. Check out the following links for some examples: The RelFinder can easily be configured to work with different RDF datasets. The RelFinder can also be more deeply integrated with your project: Integrating the RelFinder See the following examples of how the RelFinder is integrated into other projects: Ontotext applies the RelFinder to enable an exploration of relationships in the biomedical domain. All tools on this website are research prototypes that might contain errors.
Browse:Keyword Search: immunology Search in the age of social I started a new project: Gnod News - a social media searchengine. There were two driving forces behind me doing this: 1) I realized, that the majority of my media consumption is social media these days. 2) There is no website that unifies the search on social media websites. Sites I use frequently are news.ycombinator.com, reddit.com, mixergy.com and twitter.com. Every website has it's own search engine. One might think Google would also embrace the social web. I couldn't find any searchengine that searches across different social media sites and brings all the results together in one list.
The Cyc Foundation (Navigation privée) We’re pleased to bring you an update on several recent activities related to OpenCyc and the Semantic Web. UMBELThe lightweight UMBEL ontology is finally live. Mike Bergman and Fred Giasson deserve a big round of applause for the tremendous effort they’ve put into this release. They’ve meticulously selected 20,000 of the most relevant concepts from the more than 300,000 in the Cyc KB. One can use UMBEL to describe things, to help develop new ontologies and to put individuals in context. Wikipedia and OpenCyc AlignmentWe collaborated with Olena Medelyan and Catherine Legg of the University of Waikato, New Zealand in their effort to automatically identify ontologically equivalent concepts in Cyc and Wikipedia. Details and downloadable versions of the mappings can be found at the project website. OpenCyc UpdateAn updated OpenCyc ontology has been released featuring: Thank you all for your continued interest and support.
Visual Data Web - Visually Experiencing the Data Web 5 Online Media Trends for 2011 As the new year begins, here are five trends that are likely to make an impact in the online media world in 2011. Cloud-based media libraries The idea of ‘iTunes in the cloud’ has been floating around for years and despite rumors throughout 2010, it hasn’t materialized yet. In 2011, we’re likely to see the idea of a personal music library you have access to anywhere with an Internet connection become a reality. Thus far only small players like mSpot and LaLa (purchased and closed down by Apple in 2010) have addressed cloud-based media solutions in this way. A more readable Web In 2010, the success of the iPad forced publishers to reconsider the way they presented their content and Flipboard was a wakeup call to the idea of reformatting existing content in a more readable way. We recently covered Treesaver, a company that will soon offer a set of customizable templates that publishers can use to present their content with a highly readable magazine-style app. Shakeout in the e-book market
99 Resources To Research & Mine The Invisible Web College researchers often need more than Google and Wikipedia to get the job done. To find what you're looking for, it may be necessary to tap into the invisible web, the sites that don't get indexed by broad search engines. The following resources were designed to help you do just that, offering specialized search engines, directories, and more places to find the complex and obscure. Search Engines Whether you're looking for specific science research or business data, these search engines will point you in the right direction. Turbo10: On Turbo10, you'll be able to search more than 800 deep web search engines at a time. Databases Tap into these databases to access government information, business data, demographics, and beyond. GPOAccess: If you're looking for US government information, tap into this tool that searches multiple databases at a time. Catalogs If you're looking for something specific, but just don't know where to find it, these catalogs will offer some assistance. Directories
RDF For The Rest Of Us (Navigation privée The web professional's online magazine of choice. In: Articles By Keith Alexander Published on July 30, 2007 You have a website full of information, and you want to make it easier for people to reuse it—but what format should you publish it in? You’ve looked at various XML schemas and microformats, but none of them really describes all the information that you want to publish. This is where RDF comes in. What is RDF? stands for Resource Description Framework. resource is simply a thing; a person, a book, a keyboard, a blog post, a fish tank, an idea: any thing that can be described. RDF for Web Publishers RDF is different. If you find a vocabulary that can be used to describe some part of your data, then great, that data can be interoperable; you still have the freedom to describe the rest of your data with terms from as many other vocabularies as you need. For publishing your data, RDF offers you great flexibility and interoperability. Fantastic. RDF for Web Developers What is an RDF Triple?
Faceted Search Faceted Wikipedia Search allowed users to ask complex queries, like “Which Rivers flow into the Rhine and are longer than 50 kilometers?” or “Which Skyscrapers in China have more than 50 floors and have been constructed before the year 2000?” against Wikipedia. The answers to these queries are not generated using key word matching as the answers of search engines like Google or Yahoo, but are generated based on structured information that has been extracted from many different Wikipedia articles. Faceted Wikipedia Search thus allows you to query Wikipedia like a structured database and enables you to truly exploit Wikipedia’s collective intelligence. Unfortunately, the application cannot be offered any more. Faceted Search DBpedia Search implements the faceted search paradigm. The User Interface The user interface consists of several interacting components, which are highlighted in the following screenshot and described below. Background neofonie GmbH, Berlin and the
100 Search Engines For Academic Research Back in 2010, we shared with you 100 awesome search engines and research resources in our post: 100 Time-Saving Search Engines for Serious Scholars. It’s been an incredible resource, but now, it’s time for an update. Some services have moved on, others have been created, and we’ve found some new discoveries, too. General Need to get started with a more broad search? iSEEK Education:iSeek is an excellent targeted search engine, designed especially for students, teachers, administrators, and caregivers. Meta Search Want the best of everything? Dogpile:Find the best of all the major search engines with Dogpile, an engine that returns results from Google, Yahoo! Databases and Archives Resources like the Library of Congress have considerable archives and documents available, and many of them have taken their collections online. Books & Journals WorldCat:Find items from 10,000 libraries worldwide, with books, DVDs, CDs, and articles up for grabs. Science Math & Technology Social Science History
Synthesis Lectures on Information Concepts, Retrieval, and Services Lectures available online | Lectures under development Editor Gary Marchionini, University of North Carolina at Chapel Hill Annual Subscription Pricing for this Series Synthesis Lectures on Information Concepts, Retrieval, and Services is edited by Gary Marchionini of the University of North Carolina. Series ISSN: 1947-945X (print) 1947-9468 (electronic) For related titles, please see our series in Data ManagementHuman Language Technologies Lectures available online What is RSS? Digital Library Technologies: Complex Objects, Annotation, Ontologies, Classification, Extraction, and Security Digital Libraries Applications: CBIR, Education, Social Networks, eScience/Simulation, and GIS Transforming Technologies to Manage Our Information: The Future of Personal Information Management, Part II On the Efficient Determination of Most Near Neighbors: Horseshoes, Hand Grenades, Web Search and Other Situations When Close is Close Enough Information Concepts: From Books to Cyberspace Identities