15 Hits in 6.7 sec

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 this work, we propose RSP-QL, a comprehensive model that formally defines the semantics of an RSP system.  ...  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.  ...  Acknowledgments Supported by the Opensense2 project, the IBM faculty-award 2013 granted to prof. E. Della Valle and the IBM PhD Fellowship Award 2014 granted to D. Dell'Aglio.  ... 
doi:10.4018/ijswis.2014100102 fatcat:lq3gz7j7bze57plqohe6s6sg34

Yasper 1.0: Towards an RSP-QL Engine

Riccardo Tommasini, Emanuele Della Valle
2017 International Semantic Web Conference  
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  ...  For RDF Stream Processing (RSP) in particular, RSP engines empirically proved the approach feasibility and paved the road to application design and comparative analyses.  ...  [3] observed heterogeneities of existing prototypes and proposed RSP-QL, i.e. a unifying model for continuous SPARQL extensions.  ... 
dblp:conf/semweb/0001V17a fatcat:oe3rww6rnbb65dquvauufqa5ai

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  
These systems are heterogeneous in terms of syntax, capabilities and evaluation semantics. 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  ...  This research is partially supported by the IBM PhD Fellowship Award 2014 granted to D. Dell'Aglio.  ... 
doi:10.1007/978-3-319-25639-9_48 fatcat:chcxbu76yvgdzg6jofealwii3a

A query language for semantic complex event processing: Syntax, semantics and implementation

Syed Gillani, Antoine Zimmermann, Gauthier Picard, Frédérique Laforest, Oscar Corcho
2018 Semantic Web Journal  
The field of Complex Event Processing (CEP) deals with the techniques and tools developed to efficiently process pattern-based queries over data streams.  ...  The integration of Semantic Web technologies in this context can handle the heterogeneity, integration and interpretation of data streams at the semantic level.  ...  Most of the RSP systems [18, 19, 20, 43] inherit the processing model of Data Stream Management Systems (DSMSs), but consider a semantically annotated data model, namely RDF triple streams.  ... 
doi:10.3233/sw-180313 fatcat:k63c643kurevfhf5cgtljxzhi4

Federated Semantic Data Management (Dagstuhl Seminar 17262)

Olaf Hartig, Maria-Esther Vidal, Johann-Christoph Freytag, Marc Herbstritt
2017 Dagstuhl Reports  
The discussions were centered around the following four themes, each of which was the focus of a separate working group: i) graph data models, ii) federated query processing, iii) access control and privacy  ...  to be used on a large scale.  ...  The Semantic Web community showed that RDF Stream Processing (RSP) [1] is an adequate framework to develop this type of applications.  ... 
doi:10.4230/dagrep.7.6.135 dblp:journals/dagstuhl-reports/HartigVF17 fatcat:a7uvfkbt3bczldr54aikx3e274

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.  ...  RDF Stream Processing (RSP) identifies a family of SR approaches that aim to answer continuous queries over heterogeneous data streams [10] .  ... 
doi:10.1007/978-3-030-03667-6_28 fatcat:felbckllqngyxc6uuhyquuhdka

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.  ...  Moreover, the authors would like to acknowledge the support of Robin Keskisärkkä and Daniele Dell'Aglio in earlier versions of this work.  ... 
doi:10.1007/978-3-030-77385-4_34 fatcat:mjvwasjlijggne3qvcy3jb3ns4

Streaming MASSIF: Cascading Reasoning for Efficient Processing of IoT Data Streams

Pieter Bonte, Riccardo Tommasini, Emanuele Della Valle, Filip De Turck, Femke Ongenae
2018 Sensors  
In the Internet of Things (IoT), multiple sensors and devices are generating heterogeneous streams of data.  ...  To perform meaningful analysis over multiple of these streams, stream processing needs to support expressive reasoning capabilities to infer implicit facts and temporal reasoning to capture temporal dependencies  ...  The founding sponsor had no role in the design of the study; in the collection, analyses, or interpretation of data; in the writing of the manuscript, and in the decision to publish the results.  ... 
doi:10.3390/s18113832 pmid:30413104 fatcat:hot546e3yjbxxkgwvxc4qnzxay

Taming velocity and variety simultaneously in big data with stream reasoning

Emanuele Della Valle, Daniele Dell'Aglio, Alessandro Margara
2016 Proceedings of the 10th ACM International Conference on Distributed and Event-based Systems - DEBS '16  
On the other hand, the event and stream processing community has focused on the velocity of data, producing systems that efficiently operate on streams of data on-the-fly according to pre-deployed processing  ...  The paper aims to stimulate the discussion on stream reasoning and to further promote the integration of reasoning techniques within event and stream processing systems in three ways: (i) by presenting  ...  RSP-QL [31] is a formal model to describe the evaluation semantics of stream reasoning systems in the context of continuous query answering.  ... 
doi:10.1145/2933267.2933539 dblp:conf/debs/ValleDM16 fatcat:v4x3iozocfhqrndy2tvct3dygm

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

SLD Revolution: A Cheaper, Faster yet More Accurate Streaming Linked Data Framework [chapter]

Marco Balduini, Emanuele Della Valle, Riccardo Tommasini
2017 Lecture Notes in Computer Science  
The RDF stream data model is progressively adopted and many SPARQL extensions for continuous querying are converging into a unified RSP query language.  ...  RDF Stream Processing (RSP) is gaining momentum.  ...  It is actively working on a report that will present the RDF Stream data model, the possible RDF Stream serializations and the syntax and semantics of the RSP-QL query language.  ... 
doi:10.1007/978-3-319-70407-4_37 fatcat:gdvobgq2xbcglkr3efg7kver74

A Framework Uniting Ontology-Based Geodata Integration and Geovisual Analytics

Linfang Ding, Guohui Xiao, Diego Calvanese, Liqiu Meng
2020 ISPRS International Journal of Geo-Information  
In a variety of applications relying on geospatial data, getting insights into heterogeneous geodata sources is crucial for decision making, but often challenging.  ...  In this framework, ontologies play a central role by providing a coherent view over the heterogeneous data, and by acting as a mediator for visual analysis tasks.  ...  The W3C RDF Stream Processing Community Group ( is trying to define a common language, and identifies RSP-QL [68] as a reference model that unifies the semantics of the  ... 
doi:10.3390/ijgi9080474 fatcat:l64aa3n3cnde3insjmvsejetta

Towards Analytics Aware Ontology Based Access to Static and Streaming Data (Extended Version) [article]

Evgeny Kharlamov, Yannis Kotidis, Theofilos Mailis, Christian Neuenstadt, Charalampos Nikolaou, Özgür Özcep, Christoforos Svingos, Dmitriy Zheleznyakov, Sebastian Brandt, Ian Horrocks, Yannis Ioannidis, Steffen Lamparter, Ralf Möller
2016 arXiv   pre-print
Moreover, we develop query optimisation techniques that allow to efficiently process analytical tasks over static and streaming data.  ...  Real-time analytics that requires integration and aggregation of heterogeneous and distributed streaming and static data is a typical task in many industrial scenarios such as diagnostics of turbines in  ...  Moreover, we are different from existing solutions for unified processing of streaming and static semantic data e.g.  ... 
arXiv:1607.05351v2 fatcat:3vfhmj4tabddtptampyd2riv7q

Quality of Service-Aware Complex Event Service Composition in Real-time Linked Dataspaces [chapter]

Feng Gao, Edward Curry
2019 Real-time Linked Dataspaces  
RSQ-QL [283] is a recent unified RDF Stream Processing (RSF) query language that in theory supports event processing and existing RSP engines.  ...  A unified event query semantics is essential for a cross-platform and on-demand event processing [283] .  ... 
doi:10.1007/978-3-030-29665-0_11 fatcat:tv333ygpjnaj5b76tdapxflacq

Dagstuhl Reports, Volume 7, Issue 6, June 2017, Complete Issue [article]

We are observing the rise and deployment of real world data integration systems based on federation and semantic technologies.  ...  The goal is to answer queries in terms of the target ontology in a federated manner. From a practical point of view, this begs the question: where does the target ontology and the mappings come from?  ...  The Semantic Web community showed that RDF Stream Processing (RSP) [1] is an adequate framework to develop this type of applications.  ... 
doi:10.4230/dagrep.7.6 fatcat:5ovvse5smzhxppthq2tu6i4icm