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An RDF Vocabulary for Meta-Programming with SPARQL Algebra

Miguel Ceriani, Alejandro A. Vaisman
2016 Alberto Mendelzon Workshop on Foundations of Data Management  
SPARQL queries can be represented in RDF in order to work with them as first-class citizen in Semantic Web applications.  ...  Here a novel vocabulary based on SPARQL Algebra is presented. The adequacy of the language is empirically shown through a few examples.  ...  Proposed Syntax We propose a new vocabulary to represent the SPARQL Algebra in RDF, available as RDF Schema at http://meta-sparql.org/vocab/spa.  ... 
dblp:conf/amw/CerianiV16 fatcat:laqfbkr6qvd2dkbzb3ixspyfue

New Approach based on Model Driven Engineering for Processing Complex SPARQL Queries on Hive

Mouad Banane, Abdessamad Belangour
2019 International Journal of Advanced Computer Science and Applications  
been proposed, but are not dedicated to handling complex SPARQL queries. in this paper we present a new approach based on model driven engineering for processing complex SPARQL queries using one of the  ...  Today with the growth of RDF data it requires systems capable of handling these large volumes of data and responding to very complex requests at the join level, Several RDF data processing systems have  ...  Then, we illustrate the two meta-models of Hive and SPARQL with the case of the transformation of a query of the SPARQL language into a HiveQL program.  ... 
doi:10.14569/ijacsa.2019.0100474 fatcat:s26negz2urbybblo6ba2dl2xca

Temporality in Semantic Web

Hsien-Tseng Wang, Abdullah Uz Tansel
2017 DEStech Transactions on Engineering and Technology Research  
As with research efforts devoted to temporal databases in the 1980s, the usefulness of time varying data makes it necessary for Semantic Web-based data models to incorporate time, and further reason about  ...  In this paper, we provide a brief survey of temporal aspects of major Semantic Web data models and query languages, focusing on temporal RDF and temporal OWL.  ...  The annotation is generalized as an algebraic structure, which facilitates domain composition for constructing a specific annotation domain. RDF*.  ... 
doi:10.12783/dtetr/amma2017/13358 fatcat:5ytuflljr5a4lex6ghz5whmffq

A dataflow platform for applications based on Linked Data

Miguel Ceriani, Paolo Bottoni
2018 International Journal of Computational Science and Engineering (IJCSE)  
The language features interactive and meta-programming capabilities so that complex modules/applications can be developed.  ...  This paper describes in detail the functional language the platform gives access to, which is based on SPARQL (the standard query language for Linked Data) and on the dataflow paradigm.  ...  Hepp, 2010 ] vocabulary for SPARQL.  ... 
doi:10.1504/ijcse.2018.093783 fatcat:274vqqpz5fa6fcht44rh73hwyq

Temporal Extensions to RDF

Hsien-Tseng Wang, Abdullah Uz Tansel, Abdullah Uz Tansel, Abdullah Uz Tansel
2019 Journal of Web Engineering  
Some of these proposals stay compliant to the RDF and OWL standards whereas others add new constructs to RDF model and SPARQL query language.  ...  Additionally, we compare these proposed models with respect to characteristics, such as their syntax and semantics, their compliance to RDF and OWL specifications, their need for additional objects, etc  ...  Acknowledgement The authors would like thank anonymous reviewers for their valuable comments. Research of the second author is partially supported by the PSC-CUNY Award No. TRADA-48-475.  ... 
doi:10.13052/jwe1540-9589.18134 fatcat:xew4zzpn6vfppjrfw4o3cv7zoq

The SymbolicData Project - Towards a Computer Algebra Social Network

Hans-Gert Gräbe, Andreas Nareike, Simon Johanning
2014 International Conference on Intelligent Computer Mathematics  
Algebra subcommunities.  ...  In the last part of the paper we describe ongoing efforts to implement a technical basis for a Distributed Semantic Social Network infrastructure to run such a CASN.  ...  Network and contribute to it about all topics around Computer Algebra using tools that express your contributions in an RDF based vocabulary that the community agreed upon.  ... 
dblp:conf/mkm/GraebeNJ14 fatcat:uoabwnhewbdvndzlu74mkfzxaq

Don't like RDF reification?

Vinh Nguyen, Olivier Bodenreider, Amit Sheth
2014 Proceedings of the 23rd international conference on World wide web - WWW '14  
However, an efficient RDF representation for such meta knowledge of triples remains challenging.  ...  We explain how this singleton property approach fits well with the existing syntax and formal semantics of RDF, and the syntax of SPARQL query language.  ...  This research was supported by the Intramural Research Program at NLM, NIH.  ... 
doi:10.1145/2566486.2567973 pmid:25750938 pmcid:PMC4350149 dblp:conf/www/NguyenBS14 fatcat:6qbrunea2ngcpau5chha3as4rm

A Distributed Query Execution Method for RDF Storage Managers

Kiyoshi Nitta, Iztok Savnik
2014 International Semantic Web Conference  
Method is intended for use with an RDF storage manager called big3store to enable it to perform efficient query execution over large-scale RDF data sets.  ...  The storage manager converts SPARQL queries into tree structures using RDF algebra formalism.  ...  The storage manager for big RDF databases should be based on SPARQL and on the algebra of RDF graphs [19] .  ... 
dblp:conf/semweb/NittaS14 fatcat:wxmg3a2j6vayzj3dzjhhtuqtlm

Operational Semantics for SPARQL Update [chapter]

Ross Horne, Vladimiro Sassone, Nicholas Gibbins
2012 Lecture Notes in Computer Science  
In this work we propose an operational semantics for an update language for RDF, which models core features of SPARQL Update. Firstly, an abstract syntax for RDF and updates is presented.  ...  SPARQL Update is a language proposed by the W3C for fine grained updates for RDF stores.  ...  Conclusion This work introduces a language with an operational semantics for fine grained updates over RDF.  ... 
doi:10.1007/978-3-642-29923-0_16 fatcat:3e2elmtpdza4pleskjjyuynwzi

Scientific SPARQL: Semantic Web Queries over Scientific Data

Andrej Andrejev, Tore Risch
2012 2012 IEEE 28th International Conference on Data Engineering Workshops  
We define an extended version of the Semantic Web query language SPARQL called Scientific SPARQL, SciSPARQL. It is targeted mainly at scientific computing and laboratory data management.  ...  The system automatically recognizes collections in RDF Turtle statements that represent numerical multi-dimensional arrays in order to represent them with a special native data type.  ...  The RDF Data Cube vocabulary [29] provides an ontology for mapping statistical data to RDF.  ... 
doi:10.1109/icdew.2012.67 dblp:conf/icde/AndrejevR12 fatcat:p3yl2hmtivg3hh3hivclrc4zfy

SparqlBlocks: Using Blocks to Design Structured Linked Data Queries

Miguel Ceriani, Paolo Bottoni
2017 Journal of Visual Languages and Sentient Systems  
The block programming paradigm is becoming popular for the development of visual interfaces that are easy to use and guaranteed to generate syntactically correct programs, promoting a gradual and modular  ...  SparqlBlocks has been evaluated with 11 users literate in computer science but with small to no expertise in querying Linked Data.  ...  An RDF dataset is a set of named RDF graphs, i.e., RDF graphs associated with an IRI, the graph name, along with a single default graph, an RDF graph without a name.  ... 
doi:10.18293/vlss2017-006 fatcat:nzacmvtzu5echd77s4ihke4kze

A new system for massive RDF data management using Big Data query languages Pig, Hive, and Spark

Banane Mouad et. al.
2020 International Journal of Computing and Digital Systems  
For this kind of data, a specialized tool called SPARQL is dedicated to query semantic data represented by the Resource Description Framework or RDF.  ...  The aim of our work is to transform a given SPARQL query into a Hive program, a Pig program or a Spark script according to the user's choice.  ...  PigSparql [15] translates complex SPARQL queries at the level of algebraic presentations such as the syntax tree, and the algebra tree, into a program of the Latin Pig language, this program finally  ... 
doi:10.12785/ijcds/090211 fatcat:en4ndsz26vf65iyikvc47un4nm

SQUALL: A Controlled Natural Language as Expressive as SPARQL 1.1 [chapter]

Sébastien Ferré
2013 Lecture Notes in Computer Science  
We present SQUALL, a high-level language for querying and updating an RDF dataset.  ...  The most common approach to access RDF datasets is through SPARQL, an expressive query language.  ...  SQUALL can be used as a front-end language when no linguistic knowledge is available about an RDF dataset, exactly like for SPARQL.  ... 
doi:10.1007/978-3-642-38824-8_10 fatcat:vgmi7nwd7zbxxhoq76gl33wjje

SymbolicData:SDEval - Benchmarking for Everyone [article]

Albert Heinle, Viktor Levandovskyy, Andreas Nareike
2013 arXiv   pre-print
In this paper we will present SDeval, a software project that contains tools for creating and running benchmarks with a focus on problems in computer algebra.  ...  of the available programs.  ...  Toni Tontchev for his enthusiastic support. We are grateful to Hans-Gert Gräbe for his encouragement and the fruitful discussions we had with him.  ... 
arXiv:1310.5551v1 fatcat:ld73iqs26bcnxalvq3syhcktxa

Logics for the Semantic Web [chapter]

Pascal Hitzler, Jens Lehmann, Axel Polleres
2014 Handbook of the History of Logic  
In this chapter, we give an overview of the most important present standards as well as their origins and history.  ...  A major international research effort is currently under way to improve the existing World Wide Web (WWW), with the intention to create what is often called the Semantic Web [Berners-Lee et al., 2001;  ...  ACKNOWLEDGEMENTS Pascal Hitzler acknowledges support by the National Science Foundation under award 1017225 "III: Small: TROn -Tractable Reasoning with Ontologies."  ... 
doi:10.1016/b978-0-444-51624-4.50016-2 fatcat:k2isj6tj2vb7nna2m2d3vndom4
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