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Towards a Unified Language for RDF Stream Query Processing [chapter]

Daniele Dell'Aglio, Jean-Paul Calbimonte, Emanuele Della Valle, Oscar Corcho
2015 Lecture Notes in Computer Science  
Recently, the W3C RSP Group started to work on a common model for representing and querying RDF streams.  ...  In recent years, several RDF Stream Processing (RSP) systems have emerged, which allow querying RDF streams using extensions of SPARQL that include operators to take into account the velocity of this data  ...  Initiatives have started with the goal of proposing a common model and query language for processing RDF Streams, converging in the RSP Community Group of the W3C 1 .  ... 
doi:10.1007/978-3-319-25639-9_48 fatcat:chcxbu76yvgdzg6jofealwii3a

Yasper 1.0: Towards an RSP-QL Engine

Riccardo Tommasini, Emanuele Della Valle
2017 International Semantic Web Conference  
For RDF Stream Processing (RSP) in particular, RSP engines empirically proved the approach feasibility and paved the road to application design and comparative analyses.  ...  Observing these real systems highlighted their heterogeneity and fosters new foundational achievements: RSP-QL, i.e. a reference a model that explains, unifies and can be used for correctness checking  ...  Although RSP-QL is more than a query language, the community is designing a syntax [2] 1 .  ... 
dblp:conf/semweb/0001V17a fatcat:oe3rww6rnbb65dquvauufqa5ai

Contrasting RDF Stream Processing Semantics [chapter]

Minh Dao-Tran, Harald Beck, Thomas Eiter
2016 Lecture Notes in Computer Science  
The increasing popularity of RDF Stream Processing (RSP) has led to developments of data models and processing engines which diverge in several aspects, ranging from the representation of RDF streams to  ...  The recent logic-based LARS framework provides a theoretical underpinning to analyze stream processing/reasoning semantics.  ...  LARS can be used as a unifying language which stream processing/reasoning languages can be translated to.  ... 
doi:10.1007/978-3-319-31676-5_21 fatcat:aqpuntysizbj7ffivualwbunlm

A Query Model for Ontology-Based Event Processing over RDF Streams [chapter]

Riccardo Tommasini, Pieter Bonte, Emanuele Della Valle, Femke Ongenae, Filip De Turck
2018 Lecture Notes in Computer Science  
In this paper, we define OBEP's query model, we present a language to define OBEP queries, and we explain the language semantics.  ...  Now, the community is investigating more powerful solutions, realizing the vision of expressive stream reasoning. Ontology-Based Event Processing (OBEP) is our contribution to this field.  ...  Listings 1.8, 1.9, and 1.10 show the same query written with each language respectively. EP-SPARQL [1] is a SPARQL 1.0 extension for complex event processing over RDF Streams.  ... 
doi:10.1007/978-3-030-03667-6_28 fatcat:felbckllqngyxc6uuhyquuhdka

Towards Ontology-Based Event Processing [chapter]

Riccardo Tommasini, Pieter Bonte, Emanuele Della Valle, Erik Mannens, Filip De Turck, Femke Ongenae
2017 Lecture Notes in Computer Science  
We propose both a language and an architecture to perform event processing over abstract ontology concepts.  ...  In this paper, we present an Ontology Based Event Processing system that bridges the gap between ontology-based reasoning and event processing.  ...  a unified syntax for it.  ... 
doi:10.1007/978-3-319-54627-8_9 fatcat:srersvmyfzf6fc2q2ic7hcaiui

RSP4J: An API for RDF Stream Processing [chapter]

Riccardo Tommasini, Pieter Bonte, Femke Ongenae, Emanuele Della Valle
2021 Lecture Notes in Computer Science  
The RDF Stream Processing (RSP) community has proposed several models and languages for continuously querying and reasoning over RDF streams over the last decade.  ...  The variety of approaches has fostered both empirical and theoretical research and led to the design of RSPQL, i.e., a unifying model for RSP.  ...  Since 2008, the SR community's contributions include data models, query languages, and algorithms, and benchmarks for RDF Stream Processing (RSP).  ... 
doi:10.1007/978-3-030-77385-4_34 fatcat:mjvwasjlijggne3qvcy3jb3ns4

Towards Enriching CQELS with Complex Event Processing and Path Navigation

Minh Dao-Tran, Danh Le Phuoc
2015 Deutsche Jahrestagung für Künstliche Intelligenz  
The increasing popularity of RDF Stream Processing has led to the developments of several RSP engines.  ...  We propose in this paper an extension of the CQELS query language and semantics towards enriching CQELS with these attractive functionalities.  ...  Introduction Following the trend of using RDF as a unified data model for integrating diverse web data sources across systems under different controls, RDF Stream Processing (RSP) extends RDF to addresses  ... 
dblp:conf/ki/Dao-TranP15 fatcat:iys5y6qbpzhzxkrigjyu2v66jq

Enabling Ontology-Based Access to Streaming Data Sources [chapter]

Jean-Paul Calbimonte, Oscar Corcho, Alasdair J. G. Gray
2010 Lecture Notes in Computer Science  
Users can query the ontology using sparqlStream, an extension of sparql for streaming data. A preliminary implementation of the approach is also presented.  ...  The heterogeneity of these sources introduces the requirement of providing data access in a unified and coherent manner, whilst allowing the user to express their needs at an ontological level.  ...  We also thank Alvaro A. A. Fernandes, Ixent Galpin, and Norman W. Paton, from the University of Manchester, for their valuable ideas and suggestions.  ... 
doi:10.1007/978-3-642-17746-0_7 fatcat:nlic5jvzfffc3jqplsqc6hhowi

EP-SPARQL

Darko Anicic, Paul Fodor, Sebastian Rudolph, Nenad Stojanovic
2011 Proceedings of the 20th international conference on World wide web - WWW '11  
To bridge the gap, we propose Event Processing SPARQL (EP-SPARQL) as a new language for complex events and Stream Reasoning.  ...  We provide syntax and formal semantics of the language and devise an effective execution model for the proposed formalism.  ...  The authors provide a semantics for temporal RDF graphs and a temporal query language for RDF, following concepts of temporal databases.  ... 
doi:10.1145/1963405.1963495 dblp:conf/www/AnicicFRS11 fatcat:x3534wtrtbbmlfoyhrhgvv6ygq

Challenges & Opportunities of RSP-QL Implementations

Riccardo Tommasini, Emanuele Della Valle
2017 International Semantic Web Conference  
The RSP-QL model explains and unifies RDF Stream Processing (RSP) approaches into a more general semantics.  ...  For each of these challenges, we also formulate some hypotheses that will drive our future work empirical studies on RSP.  ...  We thank Daniele Dell'Aglio for the supporting discussions and brainstorming regarding RSP-QL.  ... 
dblp:conf/semweb/0001V17 fatcat:2celymsjpzgardnpbdeuub3rim

RSP-QL Semantics

Daniele Dell'Aglio, Emanuele Della Valle, Jean-Paul Calbimonte, Oscar Corcho
2014 International Journal on Semantic Web and Information Systems (IJSWIS)  
In the last years data and query languages have been proposed to extend both RDF and SPARQL for streams and continuous processing, under the name of RDF Stream Processing -RSP.  ...  RDF and SPARQL are established standards for data interchange and querying on the Web.  ...  For this purpose, we propose RSP-QL, a unifying formal model for representing and processing RDF streams, that reflects the different semantics of existing RSP systems.  ... 
doi:10.4018/ijswis.2014100102 fatcat:lq3gz7j7bze57plqohe6s6sg34

Querying massive RDF data using Spark

Mouad Banane, Hassan II University, Morocco
2019 International Journal of Advanced Trends in Computer Science and Engineering  
In this paper, we propose a new solution based on Apache Spark for massive querying and RDF data.  ...  This new system allows the processing of complex SPARQL queries on large volumes of RDF data stored in the Hadoop file system or a NoSQL database management system.  ...  the querying of these data we have implemented a mapping algorithm that transforms SPARQL queries into MongoDB Query Language queries.  ... 
doi:10.30534/ijatcse/2019/68842019 fatcat:tu3btrw63ba2rfdu3iz6btquuu

Table of contents

2014 2014 IEEE 30th International Conference on Data Engineering Workshops  
Photos (Zhenxing Xu) Session 2: Query Processing 335 Towards Optimization of RDF Analytical Queries on MapReduce (Padmashree Ravindra) Predictive Query Processing On Moving Objects (Abdeltawab M.  ...  for Big Scientific DataSession 2: Autonomous Data Stream Processing 296 Auto-Scaling Techniques for Elastic Data Stream Processing (Thomas Heinze, Valerio Pappalardo, Zbigniew Jerzak, Christof Fetzer)  ... 
doi:10.1109/icdew.2014.6818287 fatcat:znsnyupxufc47jk5eyej5udm54

Marrying Big Data with Smart Data in Sensor Stream Processing

Paula-Georgiana Zalhan, Gheorghe Cosmin Silaghi, Robert Andrei Buchmann
2019 Information Systems Development  
This paper proposes a semantic sensor stream processing pipeline using Apache Kafka to publish and subscribe semantic data streams in a scalable way.  ...  Devising machine-interpretable descriptions of sensor data is a key issue in building a semantic stream processing engine.  ...  A unifying query model is proposed in [15] that formally defines the semantics of a RSP system using a SPARQL-extended query language called RSP-QL.  ... 
dblp:conf/isdevel/ZalhanSB19 fatcat:b4qexc3l6fhxvcnetg2uh6ae7m

Incremental Hierarchical Clustering driven Automatic Annotations for Unifying IoT Streaming Data

Sivadi Balakrishna, M. Thirumaran, Vijender Kumar Solanki, Edward Núñez-Valdez
2020 International Journal of Interactive Multimedia and Artificial Intelligence  
The unification of streaming sensor data is a challenging problem.  ...  However, many of the existing semantic annotation mechanisms require many joint conditions that could generate redundant processing of transitional results for annotating the sensor data using SPARQL queries  ...  SPARQL is a Simple Protocol and RDF Query Language is used for retrieving data stored in RDF repositories. Its syntax is similar to SQL; thus it contains two main clauses, e.g., SELECT and WHERE.  ... 
doi:10.9781/ijimai.2020.03.001 fatcat:niismfrs4fbrngkjzth32i3tzy
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