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Using superimposed multidimensional schemas and OLAP patterns for RDF data analysis

Median Hilal, Christoph G. Schuetz, Michael Schrefl
2018 Open Computer Science  
We propose an approach for the definition of superimposed MD schemas over arbitrary RDF datasets and show how to represent the superimposed MD schemas using well-known semantic web technologies.  ...  On top of that, we introduce OLAP patterns for RDF data analysis, which are recurring, domain-independent elements of data analysis.  ...  In Section 2, we present the required background on linked data, RDF data analysis, OLAP patterns and analysis graphs. In Section 3, we present the concept of superimposed MD schemas for RDF data.  ... 
doi:10.1515/comp-2018-0003 fatcat:fimngrnvpzdkxdsefuv2k7skxy

High-Level ETL for Semantic Data Warehouses—Full Version [article]

Rudra Pratap Deb Nath, Oscar Romero, Torben Bach Pedersen, Katja Hose
2020 arXiv   pre-print
The popularity of the Semantic Web (SW) encourages organizations to organize and publish semantic data using the RDF model.  ...  This growth poses new requirements to Business Intelligence (BI) technologies to enable On-Line Analytical Processing (OLAP)-like analysis over semantic data.  ...  We refer to [10] for the semantics of the Exter-nalLinking operation and to [11] for the semantics of the MaterializeInference operation.  ... 
arXiv:2006.07180v1 fatcat:rzxuyvgqzfastdrw456s3rm7uy

Exploiting Inter- and Intra-Base Crossing with Multi-Mappings: Application to Environmental Data

Hicham Hajj-Hassan, Anne Laurent, Arnaud Martin
2018 Big Data and Cognitive Computing  
that could be hidden from the end-user if using the initial and single data model.  ...  These databases are used to validate and test scientific hypotheses often formulated as correlations and causality between variables, as for instance the study of the correlations between environmental  ...  Sensor data can be described by means of RDF schema for transforming sensor data into the RDF conforming to SSN ontology with an XML-based mapping language used to annotate sensors and sources to create  ... 
doi:10.3390/bdcc2030025 fatcat:eikvbg3pnfafnk5z3rdb7bbpyi

Events in Multimedia Electronic Chronicles (E-Chronicles)

Utz Westermann, Ramesh Jain
2006 International Journal on Semantic Web and Information Systems (IJSWIS)  
Our ideas are demonstrated in the context of an e-chronicle that is being implemented for a reconnaissance application using multiple disparate sensors.  ...  We believe that to deal with dynamic information, events should be used as the fundamental basis in organizing and accessing information.  ...  ACKNOWLEDGMENTS We are very thankful to Bo Gong and Srikanth Agaram for contributing to discussions and ongoing implementations of the ASSIST project.  ... 
doi:10.4018/jswis.2006040101 fatcat:7jpzloayo5b4fbzmcdanxxf6ea

Paving the Way to Increased Interoperability of Earth Observations Data Cubes

Gregory Giuliani, Joan Masó, Paolo Mazzetti, Stefano Nativi, Alaitz Zabala
2019 Data  
It enhances connections between data, applications and users facilitating management, access and use of analysis ready data (ARD).  ...  We demonstrate how standards can be used, profiled and enriched to pave the way to increased interoperability of EODC and can help delivering and leveraging the power of EO data building, efficient discovery  ...  Acknowledgments: The authors would like to thank the Swiss Federal Office for the Environment (FOEN) for their financial support to the Swiss Data Cube.  ... 
doi:10.3390/data4030113 fatcat:aan3n5htczhp7iqhmp4zq6mde4

29th International Conference on Data Engineering [book of abstracts]

2013 2013 IEEE 29th International Conference on Data Engineering Workshops (ICDEW)  
) The semantic web uses RDF as its data model, providing ultimate flexibility for users to represent and evolve data without need of a schema.  ...  The automatically extracted patterns are used by the domain and knowledge experts for rule writing. We use a greedy algorithm to extract patterns that result in a maximal coverage of data.  ...  These volunteers welcome participants, give directions, help in the sessions and on the registration desk, and generally make sure the conference is running smoothly.  ... 
doi:10.1109/icdew.2013.6547409 fatcat:wadzpuh3b5htli4mgb4jreoika

Discovering geographic knowledge in data rich environments

Harvey J. Miller, Jiawei Han
2000 SIGKDD Explorations  
. • GKD using richer geographic data types.  ...  The National Center for Geographic Information and Analysis (NCGIA) -Project Varenius workshop on "Discovering geographic knowledge in data-rich environments" brought together a diverse group of stakeholders  ...  The Co-leaders and Steering Committee for the GKD workshop that reflected these diverse stakeholders:  ... 
doi:10.1145/846183.846208 fatcat:tnjb5v2ecfczlhk6bxstxdgcxy


Rachana, Arrputhan, Sneha, Gayathri, Santhi
2017 International Journal of Pharmacy & Technology   unpublished
Due to their capability of analyzing interconnections they are used in social media and business disciplines involving complex relations and dynamic schema.  ...  Graph database can be further used in the concept discovery of Multi-Relational Data mining and sensitive knowledge hiding from database before publishing.  ...  Though there are no standard query language for graph databases. For storing data and incorporating a dynamic schema, graph databases gives us a much needed schema.  ... 

Citation analysis of database publications

Erhard Rahm, Andreas Thor
2005 SIGMOD record  
Jayavel's research interests include Internet data management, IR, and query processing in emerging system architectures.  ...  Gerhard serves on the editorial boards of ACM TODS and IEEE CS TKDE, and he was the program committee chair for the 2004 SIGMOD conference in Paris.  ...  The system uses a combination of Oracle to manage some of the file archive and also a physicsspecific data analysis system called Root for data analysis 10 .  ... 
doi:10.1145/1107499.1107505 fatcat:c4evhhw6y5difggghxsvvdqzeu

Committee SEMAPRO Advisory Chairs

Fabio Grandi, David Ostrowski, Michael Mohler, Bernd Stadlhofer, Wladyslaw Homenda, Fabio Grandi, David Ostrowski, Michael Mohler, Bernd Stadlhofer, Mario Neri, Bruno Bachimont, Ebrahim Bagheri (+97 others)
Contextual searching and special patterns-based techniques are current solutions.  ...  Hardware and software support and platforms were developed for semantically enhanced information retrieval and interpretation.  ...  ACKNOWLEDGMENT Authors would like to thank the consortium of the EU-ICT research project DreamCloud (Dynamic Resource Allocation in Embedded and High-Performance Computing) for the support with the Java  ... 

Web Usage Mining [chapter]

Yew-Kwong Woon, Wee-Keong Ng, Ee-Peng Lim
Web Mining  
ACKNOWLEDGMENT We thank Excite, and AltaVista for providing the Web query data sets without which we could not have conducted this research.  ...  ACKNOWLEDGMENTS The authors thank the two anonymous referees and Professor Anthony Scime for their valuable comments on the draft of this chapter.  ...  , pattern discovery and pattern analysis.  ... 
doi:10.4018/978-1-59140-414-9.ch018 fatcat:ap6nd7exerg3xe2izd6porxocu