[PDF] Top 20 Ontology Based Data Access in Statoil

... of Statoil engineers and IT ...existing Statoil analytical and data visualisation tools, and have already integrated our solution with a geospatial data vi- sualisation ...with Statoil ... See full document

... Ontology-based data access (OBDA, for short) is a seman- tic technology that has been developed since the mid 2000s [Poggi et ...facilitating access to vari- ous types of data ... See full document

... of data. For (i), we took the New York state data for the 10 continuous periods between 2005 and 2014; see Table ...10 data samples increase more than linearly in ...the data from 1 to 19 ... See full document

... Practical ontology-mediated query answering with temporal ontologies based on the Halpern–Shoham interval temporal logic, HS (Halpern and Shoham, 1991) was investigated by Kontchakov et ...historical ... See full document

... In the following examples, we use a geographic database with data about inhabitance control in Paraiba state (stored in PostGIS). Its scheme was previously mapped to a peer ontology representation. ... See full document

... The data complexity of answering CQs over ontologies formulated in various DLs has been intensively investigated since 2005; see, ...for data complexity, while for ALC it is coNP ...Web Ontology ... See full document

... From a technical viewpoint, one of the challenges we are facing is that, in contrast to known OBDA languages with CQ rewritability (including fragments of datalog ± [Cal`ı et al., 2012]), witnesses for ex- istential ... See full document

... With access to more normalized structured data free of multi-valued fields, it becomes possible to consider converting Bio2RDFdatasets into full-fledged OWL ...the data itself, as was demonstrated in ... See full document

... facilitates access to the vast amount of information that is produced every ...of data from the Web and other sources, and these data guide decision ...of data to be processed in a business ... See full document

... interpreting data into actionable business ...integrate data and then let domain experts apply predefined ...of data, domain experts need to extract and analyse the data of interest ...recent ... See full document

... big data processing, serviceability, traffic-handling, application security, access control, authentication, cryptography and ...Especially, data access using various resources needs authenti- ... See full document

... domain ontology is created using protégé ...the ontology creation. Figure 3, shows the ontology of laptop created using ...the ontology, the querying of the object-attribute pair is done in DL ... See full document

... flexible access to information from multiple autonomous, distributed and heterogeneous data sources through a unified query ...a data integration system should allow users to specify what information ... See full document

... string data type that can be carried by the ...RDF data results is useless within the system ...the data as ...providing access to XML Validator and to the XQuery ...XML data, the ... See full document

... Ontology-based data access is concerned with querying incomplete data sources in the presence of domain- specific knowledge provided by an ...an ontology-mediated query, which is ... See full document

... extracted based on the ontology in the proposed feature ...As ontology specifies a domain conceptualization regarding concepts, attributes, and relations [14], a concept based tree structure ... See full document

... the data source D together with the mapping M often provide valuable infor- mation about the class of possible ABoxes over which the user CQ is ...the data comes from a universal table or a triple store, it ... See full document

... Epicentre data model, relationships are represented as attributes of entities (with collections of instances as possible values), so entities at both end-points of a relationship have a respective attribute: one ... See full document

... four data nodes. The data nodes have 2 Intel Xeon E5-2620 v3 processors 2,4GHz, 6 Core / 12 threads and 32 GB DDR4-SDRAM, ...all data nodes VMWare ESXi ...Every data node may use 2TB (2x2TB as ... See full document

... In our work, we present a case study of ontology-based data access using Ontop in education domain. This paper is organised as follows: Section 2 explains Ontop framework and its components. ... See full document