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Mastro: Ontology-Based Data Access at Work (Extended Abstract) [chapter]

Giuseppe De Giacomo, Domenico Lembo, Maurizio Lenzerini, Antonella Poggi, Riccardo Rosati, Marco Ruzzi, Domenico Fabio Savo
2012 Lecture Notes in Computer Science  
Mastro allows users for accessing external data sources by querying an ontology expressed in a fragment of the W3C Web Ontology Language (OWL).  ...  An extended version of this abstract can be found in [4] . In this section we describe the query answering process of the Mastro system.  ... 
doi:10.1007/978-3-642-33618-8_90 fatcat:c6rl7cin4vbfxoi4vaflgjgzhi

Ontology-based database access with DIG-Mastro and the OBDA Plugin for Protégé (Demo Description)

Antonella Poggi, Mariano Rodriguez, Marco Ruzzi
2008 W3C Web Ontology Language (OWL) Experiences and Directions Workshop (OWLED)  
In Ontology Based Data Access (OBDA), the aim is to use an ontology to mediate access to data.  ...  The second component is the OBDA Plugin for Protégé, that in conjunction with the ontology editing features of Protégé, functions as an OBDA system designer.  ...  Ontology Based Data Access (OBDA).  ... 
dblp:conf/owled/PoggiRR08 fatcat:4sq2pb5njzbv7mxshxsjntgwje

The MASTRO system for ontology-based data access

Diego Calvanese, Giuseppe De Giacomo, Domenico Lembo, Maurizio Lenzerini, Antonella Poggi, Mariano Rodriguez-Muro, Riccardo Rosati, Marco Ruzzi, Domenico Fabio Savo
2011 Semantic Web Journal  
In this paper we present MASTRO, a Java tool for ontology-based data access (OBDA) developed at Sapienza Università di Roma and at the Free University of Bozen-Bolzano.  ...  MASTRO manages OBDA systems in which the ontology is specified in DL-Lite A,id , a logic of the DL-Lite family of tractable Description Logics specifically tailored to ontology-based data access, and is  ...  Introduction In this paper we present MASTRO, a tool for ontology-based data access developed at Sapienza Università di Roma and at the Free University of Bozen-Bolzano.  ... 
doi:10.3233/sw-2011-0029 fatcat:atlib3yy7jcbzpjf7kep24acoi

Mastro at Work: Experiences on Ontology-Based Data Access

Domenico Fabio Savo, Domenico Lembo, Maurizio Lenzerini, Antonella Poggi, Mariano Rodriguez-Muro, Vittorio Romagnoli, Marco Ruzzi, Gabriele Stella
2010 International Workshop on Description Logics  
we used MASTRO for accessing, by means of an ontology, a set of data sources of the actual MPS data repository.  ...  We report on an experimentation of Ontology-based Data Access (OBDA) carried out in a joint project with SAPIENZA University of Rome, Free University of Bolzano, and Monte dei Paschi di Siena (MPS), where  ...  The plan is to continue the experience by extending the work to other MPS applications, with the idea that the ontology-based approach could result in a basic step for the future IT architecture evolution  ... 
dblp:conf/dlog/SavoLLPRRRS10 fatcat:ouwmwyz2gba4vovjb233eqs5vm

MASTRO: A Reasoner for Effective Ontology-Based Data Access

Giuseppe De Giacomo, Domenico Lembo, Maurizio Lenzerini, Antonella Poggi, Riccardo Rosati, Marco Ruzzi, Domenico Fabio Savo
2012 International Workshop on OWL Reasoner Evaluation  
Mastro manages OBDA systems in which the ontology is specified in a logic of the DL-Lite family of Description Logics specifically tailored to ontology-based data access, and is connected to external data  ...  In this paper we present Mastro, a Java tool for ontologybased data access (OBDA) developed at Sapienza Università di Roma.  ...  Ontology-based data access In OBDA, the aim is to give users access to a data source or a collection thereof, by means of a high-level conceptual view specified as an ontology.  ... 
dblp:conf/ore/GiacomoLLPRRS12 fatcat:lxpi5wegl5ej3oy2q4xlddpv5y

R2RML Mappings in OBDA Systems: Enabling Comparison among OBDA Tools [article]

Manuel Namici
2018 arXiv   pre-print
The Ontology-Based Data Access (OBDA) paradigm aims at mitigating this phenomenon by providing to the users of the system a unified and shared conceptual view of the domain of interest (ontology), while  ...  In this work we focus on comparing two of the available systems for OBDA, namely, Mastro and Ontop, by adopting OBDA specifications based on W3C recommendations.  ...  In particular, we first enable the use of R2RML mappings in Mastro, a tool for Ontology-Based Data Access developed at Sapienza, University of Rome.  ... 
arXiv:1804.01405v1 fatcat:2o2fuohxljdmdmoqgfk3f5o7re

Ontocloud - a Clinical Information Ontology Based Data Integration System

Diogo F. C. Patrão, Helena Brentani, Marcelo Finger, Renata Wassermann
2013 Joint Seminar on Ontology Research in Brazil / International Workshop on Metamodels, Ontologies and Semantic Technologies  
We identified the required features of a clinical data search system and used it to design and evaluate Ontocloud, a prototype based on open source software and open standards of a dynamic ontology based  ...  Researchers struggle to find eligible patients due to: information scattered in many different databases, incompatible data representation, and the technical knowledge required to work directly with databases  ...  always upto-date results; (4) Ontologies provides tools for dealing with semantic mismatch; and (5) Inference of higher level concepts based on raw data, making all assumptions about data explicit and  ... 
dblp:conf/ontobras/PatraoBFW13 fatcat:cb4uqeiw4batrjpad7s4tfkfom

Quest, an OWL 2 QL Reasoner for Ontology-based Data Access

Mariano Rodriguez-Muro, Diego Calvanese
2012 W3C Web Ontology Language (OWL) Experiences and Directions Workshop (OWLED)  
Ontology Based Data Access (OBDA) has drawn considerable attention from the OWL and RDF communities.  ...  In OBDA, instance data is accessed by means of mappings, which state the relationship between the data in a data source (e.g., an RDBMSs) and the vocabulary of an ontology.  ...  At the same time, the terminological part of an ontology (the TBox) allows for obtaining richer answers by means of OWL and RDFS inference. This scenario is called Ontology Based Data Access (OBDA).  ... 
dblp:conf/owled/Rodriguez-MuroC12 fatcat:dj4sbp4qz5crbgohd5hs63gdsu

An Infrastructure and Approach for Inferring Knowledge Over Big Data in the Vehicle Insurance Industry [chapter]

Aikaterini K. Kalou, Dimitrios A. Koutsomitropoulos
2016 Advances in Intelligent Systems and Computing  
The ultimate aim of this attempt is to provide an efficient manner to access data on-the-fly and derive new value.  ...  In our work, we propose a Property and Casualty ontology and then exploit an OBDA system in order to leverage its power.  ...  With OBDA, an ontology is used so as to expose data in a conceptual manner by abstracting away from the schema-level details of the underlying data.  ... 
doi:10.1007/978-3-319-47898-2_30 fatcat:fbplh3jjdnffxnvufhlslnpkym

How Semantic Technologies Can Enhance Data Access at Siemens Energy [chapter]

Evgeny Kharlamov, Nina Solomakhina, Özgür Lütfü Özçep, Dmitriy Zheleznyakov, Thomas Hubauer, Steffen Lamparter, Mikhail Roshchin, Ahmet Soylu, Stuart Watson
2014 Lecture Notes in Computer Science  
We advocate for Ontology Based Data Access (OBDA) as a suitable Semantic Web driven technology to address the challenge.  ...  We present a description and analysis of the data access challenge in the Siemens Energy.  ...  Ontology Based Data Access Ontology Based Data Access (OBDA) is a prominent approach for end-user oriented access to databases.  ... 
doi:10.1007/978-3-319-11964-9_38 fatcat:fzkk5pwsjzd25jcicvlvlgg7ae

Semantic access to streaming and static data at Siemens

Evgeny Kharlamov, Theofilos Mailis, Gulnar Mehdi, Christian Neuenstadt, Özgür Özçep, Mikhail Roshchin, Nina Solomakhina, Ahmet Soylu, Christoforos Svingos, Sebastian Brandt, Martin Giese, Yannis Ioannidis (+4 others)
2017 Journal of Web Semantics  
We advocate Ontology Based Data Access (OBDA) as a suitable Semantic Web driven technology to address the challenge.  ...  We present a description and analysis of the data access challenge in Siemens Energy.  ...  Ontology based data access Ontology Based Data Access (OBDA) is a prominent approach for end-user oriented access to databases.  ... 
doi:10.1016/j.websem.2017.02.001 fatcat:vbyec4wq3rc5nntgpp35bc4fwa

OnGIS: Ontology Driven Geospatial Search and Integration

Marek Smid, Zdenek Kouba
2012 International Semantic Web Conference  
Helping non-expert users to query over complex spatial data requires abstracting from GIS services and operations. This paper introduces an abstraction layer based on OWL ontologies.  ...  It provides an intuitive searching GUI for exploring data semantically integrated from different sources.  ...  technique of query answering is called Ontology-Based Data Access (OBDA), which uses an ontology as a mediator to access non-semantic data.  ... 
dblp:conf/semweb/SmidK12 fatcat:mj7fdwvbtraubkdemllr7avwmm

Querying industrial stream-temporal data: An ontology-based visual approach1

Ahmet Soylu, Martin Giese, Rudolf Schlatte, Ernesto Jimenez-Ruiz, Evgeny Kharlamov, Özgür Özçep, Christian Neuenstadt, Sebastian Brandt, Antonis Bikakis, Thanos G. Stavropoulos, Georgios Meditskos
2017 Journal of Ambient Intelligence and Smart Environments  
To this end, this article reports an ontology-based visual query system (VQS), namely OptiqueVQS, how it is extended for a stream-temporal query language called STARQL, a user experiment with the domain  ...  Moreover, recent ontology-based data access (OBDA) technologies enable end users to formulate their information needs into queries using a set of terms defined in an ontology.  ...  Finally, ontology-based data access (OBDA) approach extends the reach of ontology-based querying from triple stores to relational databases [38, 57, 27] .  ... 
doi:10.3233/ais-160415 fatcat:4lscdqnu7jgexdg444kdajfywq

Effective support of databases with ontological dependencies: Relational languages instead of description logics

L. A. Kalinichenko
2012 Programming and computer software  
based" data access systems.  ...  The paper provides a brief survey of the languages for efficient support of access to the databases satisfying the ontological dependencies.  ...  The activity of this kind is accompanied by the introduction of new terms, such as Ontology Based Information Systems (OBIS), Ontology Based Data Access (OBDA), and Ontology Based Data Integra tion (OBDI  ... 
doi:10.1134/s0361768812060059 fatcat:aezozh4o6rctjft47p3uny4lnm

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
Based on our experience with Siemens, we argue that in order to overcome those limitations OBDA should be extended and become analytics, source, and cost aware.  ...  We implement our approach in a system and evaluate our system with Siemens turbine data.  ...  Introduction Ontology Based Data Access (OBDA) [1] is an approach to access information stored in multiple datasources via an abstraction layer that mediates between the datasources and data consumers  ... 
arXiv:1607.05351v2 fatcat:3vfhmj4tabddtptampyd2riv7q
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