main biomedical archive), Repec (the main archive for economics) or Open Archives likes arxiv.org (main pre-print archive for physics, maths and computer science). The ISC-PIF... . These data sets will be a general driving force for the project and for the experimental validation of the solutions. As a first goal, the project intends
main biomedical archive), Repec (the main archive for economics) or Open Archives likes arxiv.org (main pre-print archive for physics, maths and computer science). The ISC-PIF... . These data sets will be a general driving force for the project and for the experimental validation of the solutions. As a first goal, the project intends
==== Star shape query plans======
=== SPARQL SQL for a star with 3 branches ===
<code sql>
SELECT t1.... 1.s=t3.s;
</code>
==== SPARQL Hybrid DF : plan for Spark v1.5====
<code scala>
import scala.collecti... //======================================
// Timer for RDD and DF
//======================================
/*
function queryTime1: Timer for RDD
*/
def queryTime1[T: ClassTag](q: RDD[T]): Do
server). The upper part of the figure shows tools for producing RSS feeds using locally installed clien... ght par). The lower part does the same separation for tools and environments for subscribing to and observing feeds.
{{feeds-web2.0.png|Fig. 1 : Web con... applications do not exploit the full power of RDF for specifying semantic web graphs and most RSS docum
r chaque requête par
<code ascii>
explain plan for SELECT ...
</code>
puis terminer chaque requête p... d'une requête en oubliant l'entête ''explain plan for'' vous pourriez être gêné par l'affichage de plus... le:
Au lieu d'écrire :
<code sql>
explain plan for
select * from Annuaire;
@p3
</code>
vous écr... ardinalité d'une table :
<code sql>
explain plan for
select * from Annuaire;
@p3
</code>
<code sq
r chaque requête par
<code ascii>
explain plan for SELECT ...
</code>
puis terminer chaque requête p... d'une requête en oubliant l'entête ''explain plan for'' vous pourriez être gêné par l'affichage de plus... ardinalité d'une table :
<code sql>
explain plan for
select * from Annuaire;
@p3
</code>
<code sql>
explain plan for
select * from BigAnnuaire;
@p3
</code>
Pour
r chaque requête par
<code ascii>
explain plan for SELECT ...
</code>
puis terminer chaque requête p... d'une requête en oubliant l'entête ''explain plan for'' vous pourriez être gêné par l'affichage de plus... ardinalité d'une table :
<code sql>
explain plan for
select * from Annuaire;
@p3
</code>
<code sql>
explain plan for
select * from BigAnnuaire;
@p3
</code>
Pour
t.fr/) defining and implementing an open platform for building industrial semantic web applications. Th... e ROSES project might offer an additional testbed for validating the WebContent platform in the future.... ch domains concern distributed ranking algorithms for data and services, freshness-aware data replicati... tories (e.g. Xyleme) and P2P architectures, views for easy access to heterogeneous XML data and P2P con
n (PhD J. Creus), on efficient refresh strategies for dynamic RSS feeds (PhD of R. Horincar in collabor... sly changing and building representative archives for the future generates many challenging data proces... ntext on (1) semantic web page refresh strategies for web
archives, (2) Web archive querying and text i... ynchronization overhead which is a major obstacle for achieving scalability. To
reduce this overhead, w
ists of i) the query workload ii) the source code for both data preparation and query evaluation, and i... cription of two datasets used in the experiments.
For the sake of reproducibility, each source code is ... ferred to as Query 1.
We also created two queries for the [[https://www.wikidata.org/wiki/Wikidata:Main... the triple hashing and subject hashing approaches for the LUBM datasets.
It consists of a data preparat
e:namespaces]] by using a colon in the pagename.
For details about namespaces see [[doku>namespaces]].... ki]] links. These are quick links to other Wikis. For example this is a link to Wikipedia's page about ... ]] links. These are quick links to other Wikis.
For example this is a link to Wikipedia's page about ... er\share|this]] are recognized, too.
Notes:
* For security reasons direct browsing of windows share
ists of i) the query workload ii) the source code for both data preparation and query evaluation, and i... cription of two datasets used in the experiments.
For the sake of reproducibility, each source code is ... ferred to as Query 1.
We also created two queries for the [[https://www.wikidata.org/wiki/Wikidata:Main... the triple hashing and subject hashing approaches for the LUBM datasets.
It consists of a data preparat
n (PhD J. Creus), on efficient refresh strategies for dynamic RSS feeds (PhD of R. Horincar in collabor... sly changing and building representative archives for the future generates many challenging data proces... ntext on (1) semantic web page refresh strategies for web
archives, (2) Web archive querying and text i... ynchronization overhead which is a major obstacle for achieving scalability. To
reduce this overhead, w
t of web ressource syndication services and tools for
localizing, integrating, querying and composing ... Formally speaking, RSS feeds follow the RDF model for semantic web graphs, but the XML representation o... sed on the RSS data model and existing technology for storing and querying (XPath/Xquery) XML documents... eas this kind of architecture might be sufficient for many use cases, we believe that RSS syndication "