Web Semantique
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Federated SPARQL query options - ANSWERS
For general solutions that don't rely on SPARQL 1.1 features there is Olaf Hartig's SQUIN or the Semantic Web Client Library from Chris Bizer et al which may be useful to you. In terms of pure SPARQL solutions my own framework which I develop ( dotNetRDF ) also supports the SERVICE keyword in it's SPARQL engine just like ARQ does in Jena.
A new resource is available for linked data professionals: “In order to support data set owners to publish their datasets as Linked Data on the Web, as well as to support data consumers to access and integrate Linked Data from the Web, the LATC project has compiled a library of open source toolkits that cover all stages of the Linked Data publication (modeling, linking, serving) and consumption process (discovery, consolidation, application). By gathering high-quality open source tools in the form of a consistent library, we hope to lower the barriers to publishing Linked Data as well as to interacting with the Web of Data.” The announcement continues, “This website presents the initial version of the LATC Data Publication & Consumption Tools Library. The website gives an overview of the main steps of the Linked Data publication and consumption process and associates open source tools from the library to each step in the process.”
Announcing the LATC Data Publication & Consumption Tools Library - semanticweb.com
Callimachus is a framework for data-driven applications based on Linked Data . Callimachus allows Web developers to quickly and easily create Web applications based on Linked Data. The user interface is consistent -- it is RESTful from the ground up. Developers need only a Web browser to create a data-driven application.
callimachus - Callimachus is a Semantic Web framework for easily building hyperlinked Web applications. - Google Project Hosting
Et les résultats sont là ! Elasticsearch est une solution efficace pour faire de la recherche sur des applications utilisant à la fois des BDD nosql et sur une architecture cloud. Niveau utilisation, c'est simple, à l'aide de méthodes RESTfull, on va PUT et GET les données pour les indexer ou les récupérer / rechercher. Comme nous n'avons pas de notions de schéma comme en SQL, il suffit d'envoyer un JSON au moteur pour qu'il soit automatiquement indexé (Les types sont automatiquement détectés).
ElasticSearch - Un moteur de recherche on the cloud basé sur Lucène - La Ferme du web
Kwaga partners with Viadeo to add professional profiles to its semantic email filter
Steve O’Hear is probably best known as a technology journalist, most recently at TechCrunch. He still occasionally blogs at last100. Until February 2012, he was CEO of expertise platform Beepl where he helped the company navigate its first VC round, along with seeing the product through development, private alpha and a high-profile public launch. Last100 was co-founded with Richard MacManus... → Learn More Kwaga , which offers a semantic toolkit to help manage email, is partnering with LinkedIn competitor Viadeo to make the social network’s 30m user profiles available within Gmail, with other email services to follow. Specifically, Viadeo support is being rolled out first for Kwaga Contex t so that a sender’s Viadeo profile (if available) will be displayed, as well as other contextual information, at the bottom of each email inside of Gmail.
wiki.dbpedia.org : spotlight
1. Shedding Light on the Web of Documents DBpedia Spotlight is a tool for automatically annotating mentions of DBpedia resources in text, providing a solution for linking unstructured information sources to the Linked Open Data cloud through DBpedia. DBpedia Spotlight performs named entity extraction, including entity detection and Name Resolution (a.k.a. disambiguation).
On the Web today, we see millions of web sites, each of which presents web pages and documents. These are simply electronic versions of the old paper-based ways of doing things: writing checks, filing taxes, looking at menus, catalog pages, magazines, etc. When you search for something on Google, you get a list of web sites that may or may not have what you’re looking for, based on keywords found in the text. You have to look at each one and decide whether it answers your question. Google doesn’t know where the information or answers are; it just knows which pages have which keywords and who links to them. Our information infrastructure isn’t scaling up very well at all.
The Semantic Web & THE POWER OF PULL » Introduction
Realtime Social Semantic Web « Laurens goes semantic…
In another similar project we are trying to bring realtime RDF annotation to the Social Web ! We have quite successfully implemented a basic client that uses the Twitter Streaming API filter to track tweets containing certain keywords. Anyway you can try it here : http://socialweb.semanticprofiling.net/client/The following is a transcript of a talk presented at a dual meetup of Vancouver Search Engine Marketing Group and the The Vancouver Semantic Web Meetup Group on 6 January 2011. What is the Semantic Web? I'm not going to spend the next 45 minutes trying to define the semantic web – also called Web 3.0 – because it's in some ways as philosophical as technical, and is a matter of debate even among semantic web practitioners. Instead I want to focus on three core concepts of the semantic web, keeping things a simple as possible.
SEO, the Semantic Web and Information Discovery
One SPARQL end point per dataset, One end point to query them all « Semantic Web world for you
Althought being commonly depicted as one giant graph, the Web of Data is not a single entity that can be queried. Instead, it’s a distributed architecture made of different datasets each providing some triples (see the LOD Cloud picture and CKAN.net ). Each of these data source can be queried separately, most often through an end point understanding the SPARQL query language. Looking for answers making use of information spanning over different data sets is a more challenging task as the mechanisms used internally to query one data set (database-like joins, query planning, …) do not scale easily over several data sources.
web²
The presentation introduces and explains the Semantic Web (aka Web 3.0) and identifies why this is of critical importance, now, to the influence disciplines. It concludes by outlining two Semantic Web ontologies required of the PR industry in its contribution to the growth and usefulness of Linked Data and calls for collaborative support in their development.
PR and Web 3.0
SalsaDev - When Information Makes Sense
Need an advanced Search Solution within Liferay? Liferay is the leading open-source horizontal portal, alongside Microsoft Sharepoint, IBM Websphere Portal and Oracle WebCenter Portal (click here to see the detailed analysis by Gartner). Through its technology partnership with Liferay, salsaDev has developed a full-fledge enterprise search solution for Liferay, soon to be available on the Liferay Marketplace.Web 3.0 - Wikipédia
Un article de Wikipédia, l'encyclopédie libre. L'expression Web 3.0 est utilisée en futurologie à court terme pour désigner l'internet qui suit le web 2.0 et constitue l'étape à venir du développement du World Wide Web . Son contenu réel n'est pas défini de manière consensuelle, chacun l'utilisant pour désigner sa propre vision du futur d'internet. Historiquement, le Web 3.0 est une expression qui désigne la troisième étape en cours des transformations majeures dont le Web fait l'objet depuis son lancement : Le web 3.0, lui, n'est pas vraiment défini. En fait, l'expression est employée par tous les spécialistes pour expliquer ce que sera selon eux la prochaine étape de développement du web.Dans le précédent billet , j'ai expliqué en quoi RDFa permettait de décrire la structure du message contenu dans une page Web et comment on pourrait facilement générer du RDFa à partir des données structurées dans la base de données de votre CMS. Je vous propose maintenant de passer de la théorie à la pratique. Ce tutoriel suppose que vous connaissez XHTML et le principe de base de RDF . Dans la mesure où RDFa ajoute des attributs à XHTML, le W3C a mis au point une DTD spécifique issue de XHTML et intégrant les attributs RDFa. Par conséquent, si vous voulez que vos pages soient valides, le doctype à déclarer est le suivant :
RDFaiser votre blog, 2ème partie : la pratique | Les petites cas
Easy RDF and SPARQL for LAMP systems ARC is a flexible RDF system for semantic web and PHP practitioners. It's free, open-source, easy to use, and runs in most web server environments (it's PHP 5.3 E_STRICT -compliant). ARC started in 2004 as a lightweight RDF system for parsing and serializing RDF/XML files.