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Linked Data Quality: Identifying and Tackling the Key Challenges

Magnus Knuth, Dimitris Kontokostas, Harald Sack
2014 International Conference on Semantic Systems  
In this paper we summarize key problems of Linked Data quality that data consumers are facing and propose approaches to tackle these problems.  ...  The awareness of quality issues in Linked Data is constantly rising as new datasets and applications that consume Linked Data are emerging.  ...  CONCLUSION In this paper we have discussed key issues of Linked Data quality aspects and possible ways to tackle them.  ... 
dblp:conf/i-semantics/KnuthKS14 fatcat:65lnf2mrjbdtjhx6qkcezhsehy

Luzzu Quality Metric Language -- A DSL for Linked Data Quality Assessment [article]

Jeremy Debattista, Christoph Lange, Sören Auer
2015 arXiv   pre-print
The steadily growing number of linked open datasets brought about a number of reservations amongst data consumers with regard to the datasets' quality.  ...  Quality assessment requires significant effort and consideration, including the definition of data quality metrics and a process to assess datasets based on these definitions.  ...  Concluding Remarks Data quality assessment is crucial for the wider deployment and use of Linked Data.  ... 
arXiv:1504.07758v1 fatcat:epkv76zzhrabhhlnjwtsrlltje

Quality assessment for Linked Data: A Survey

Amrapali Zaveri, Anisa Rula, Andrea Maurino, Ricardo Pietrobon, Jens Lehmann, Sören Auer, Pascal Hitzler
2015 Semantic Web Journal  
The development and standardization of semantic web technologies has resulted in an unprecedented volume of data being published on the Web as Linked Data (LD).  ...  However, data on the Web reveals a large variation in data quality.  ...  .,2012 [ We aim to further develop this framework for data quality assessment allowing a data consumer to select and assess the quality of suitable datasets according to this methodology.  ... 
doi:10.3233/sw-150175 fatcat:g3zkekg5zjeq5dpseifc4smxke

Test-driven evaluation of linked data quality

Dimitris Kontokostas, Patrick Westphal, Sören Auer, Sebastian Hellmann, Jens Lehmann, Roland Cornelissen, Amrapali Zaveri
2014 Proceedings of the 23rd international conference on World wide web - WWW '14  
We present a methodology for assessing the quality of linked data resources, based on a formalization of bad smells and data quality problems.  ...  Linked Open Data (LOD) comprises an unprecedented volume of structured data on the Web.  ...  Acknowledgment This work was supported by grants from the European Union's 7th Framework Programme provided for the projects LOD2 (GA no. 257943), GeoKnow (GA no. 318159) and DIACHRON (GA no. 601043).  ... 
doi:10.1145/2566486.2568002 dblp:conf/www/KontokostasWAHLCZ14 fatcat:qqbv6otf65glzmrzetpf73fvsa

Diachronic linked data

Sören Auer, Vassilis Christophides, George Papastefanatos, Kostas Thiveos, Theodore Dalamagas, Helen Parkinson, François Bancilhon, Giorgos Flouris, Dimitris Sacharidis, Peter Buneman, Dimitris Kotzinos, Yannis Stavrakas
2012 Proceedings of the First International Workshop on Open Data - WOD '12  
The Linked Data Paradigm is one of the most promising technologies for publishing, sharing, and connecting data on the Web, and offers a new way for data integration and interoperability.  ...  In this paper we focus on the key problem of preserving evolving structured interlinked data.  ...  However, existing open preservation frameworks proposed for scientific and cultural data [1] cannot cope with the intrinsic features of linked data that introduce a number of new challenges.  Linked  ... 
doi:10.1145/2422604.2422610 dblp:conf/wod/AuerDPBFSBKSCPT12 fatcat:ah6pykdskfgrnfz4hy3uqzokom

Assessing the Quality of Geospatial Linked Data - Experiences from Ordnance Survey Ireland (OSi)

Jeremy Debattista, Eamonn Clinton, Rob Brennan
2018 International Conference on Semantic Systems  
We set up Luzzu, a scalable Linked Data quality assessment framework, in the OSi pipeline to continuously assess produced data in order to tackle any quality problems prior to publishing.  ...  In this paper we discuss how the quality of the generated sematic data fares against datasets in the LOD cloud.  ...  However Linked Data has its own quality measures and challenges [1] and so it was important to investigate the relative quality of the Linked Data being produced.  ... 
dblp:conf/i-semantics/DebattistaCB18 fatcat:lz36lhv6avd65gz3dbav2mz7le

Visualisation of Linked Data – Reprise

Aba-Sah Dadzie, Emmanuel Pietriga, Aba-Sah Dadzie, Emmanuel Pietriga
2016 Semantic Web Journal  
Linked Data promises to serve as a disruptor of traditional approaches to data management and use, promoting the push from the traditional Web of documents to a Web of data.  ...  The design of user interfaces for Linked Data, and more specifically interfaces that represent the data visually, play a central role in this respect.  ...  Aba-Sah Dadzie is funded by the EU project EDSA (EC no. 643937).  ... 
doi:10.3233/sw-160249 fatcat:4o7abtckxjewboxo43tetcpuie

Linked Data, Big Data, and the 4th Paradigm

Pascal Hitzler, Krzysztof Janowicz
2013 Semantic Web Journal  
Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation.  ...  Acknowledgements The first named author acknowledge support by the National Science Foundation under award 1017225 "III: Small: TROn -Tractable Reasoning with Ontologies."  ...  We would even go a bit further and claim that Linked Data is an ideal testbed for researching some key Big Data challenges and to experience the 4th paradigm in action.  ... 
doi:10.3233/sw-130117 fatcat:lca5hyr6hfbkdlwpbsbk2snhfy

Querying Linked Data: how to ensure user's quality requirements [article]

Jacques Chabin and Mirian Halfeld-Ferrari and Béatrice Markhoff and Thanh Binh Nguyen
2021 arXiv   pre-print
In the distributed and dynamic framework of the Web, data quality is a big challenge. The Linked Open Data (LOD) provides an enormous amount of data, the quality of which is difficult to control.  ...  We detail its theoretical foundations and we provide experimental results showing that the check additional cost is reasonable and that integrating the constraints in the queries further improves it significantly  ...  Introduction Very large knowledge bases on the web of Linked Open Data (as DBpedia, Yago or BabelNet) need applications to help humans exploring their huge knowledge, performing data analysis and data  ... 
arXiv:2107.06139v1 fatcat:dwzk2fhacfcwtif6ztrjva74gu

Mitigating linked data quality issues in knowledge-intense information extraction methods

Albert Weichselbraun, Philipp Kuntschik
2017 Proceedings of the 7th International Conference on Web Intelligence, Mining and Semantics - WIMS '17  
Applying this framework to named entity linking and data enrichment demonstrates the potential of the introduced mitigation strategies to lessen the impact of di erent kinds of data quality problems.  ...  This paper addresses the problem of data quality by introducing a framework that elaborates on linked data quality issues relevant to di erent stages of the background knowledge acquisition process, their  ...  The authors would like to thank the KEYSTONE AG and especially Markus Läng, Karl Csoknyay, Sven Rütti and Lucas Kobel for their valuable input in designing the image annotation and retrieval processes.  ... 
doi:10.1145/3102254.3102272 dblp:conf/wims/WeichselbraunK17 fatcat:uxc3dzsf75cg7kqwhufvflhjl4

Towards Linked Data based Enterprise Information Integration

Philipp Frischmuth, Sören Auer, Sebastian Tramp, Jörg Unbehauen, Kai Holzweißig, Carl-Martin Marquardt
2013 International Semantic Web Conference  
Data integration in large enterprises is a crucial but at the same time costly, long lasting and challenging problem.  ...  We discuss Linked Data approaches in these areas and present some examples of successful applications of the Linked Data principles in that context.  ...  We then examine the benefits of employing Linked Data technologies in order to tackle the respective challenge.  ... 
dblp:conf/semweb/FrischmuthATUHM13 fatcat:qi5x6tljanbfzj5ncyu64lljci

The linked data benchmark council

Renzo Angles, Ioan Toma, Peter Boncz, Josep Larriba-Pey, Irini Fundulaki, Thomas Neumann, Orri Erling, Peter Neubauer, Norbert Martinez-Bazan, Venelin Kotsev
2014 SIGMOD record  
We introduce so-called "choke-point" based benchmark development through which experts identify key technical challenges, and introduce them in the benchmark workload.  ...  The Linked Data Benchmark Council (LDBC) is an EU project that aims to develop industry-strength benchmarks for graph and RDF data management systems.  ...  analysis, linked open data, etc.  ... 
doi:10.1145/2627692.2627697 fatcat:jtfspcvek5eofa6u3nmjgskc5y

DC Proposal: Towards Linked Data Assessment and Linking Temporal Facts [chapter]

Anisa Rula
2011 Lecture Notes in Computer Science  
The research proposed here deals with the quality assessment in the Linked Data and the temporal linking techniques.  ...  Since the Linked Data is continuously growing on the Web, the quality of overall data can rapidly degrade over time.  ...  Acknowledgements I would like to thank my supervisor Andrea Maurino and my tutor Prof. Carlo Batini for their suggestions, and the anonymous reviewers for their helpful comments.  ... 
doi:10.1007/978-3-642-25093-4_27 fatcat:fbra4qzwkramblkws4clsitspm

Linking Administrative Data: An Evolutionary Schema [article]

Jack Lothian, Anders Holmberg, Allyson Seyb
2017 arXiv   pre-print
Like most methodologists, the authors see surveys and the publications of their results as a process where estimation is the key tool to achieve the final goal of an accurate statistical output.  ...  Randomness and sampling exists to support this goal, and early on it was clear to us that the incoming it-is-what-it-is data sources were not randomly selected.  ...  The key issue is defining our target population and identifying an estimation strategy that adjusts for the known biases in the source data.  ... 
arXiv:1712.08522v1 fatcat:tysmzuroqnblhhlay4gh5xq5fq

kOre: Using Linked Data for OpenScience Information Integration

Ivan Ermilov, Konrad Hoeffner, Jens Lehmann, Dmitry Mouromtsev
2015 International Conference on Semantic Systems  
On the other hand, the Web of Science consists of high quality information created and reviewed by the international community of researchers.  ...  We define and describe a framework for automatic conversion of university data to RDF. We showcase the VIVO+ ontology and the framework using the example of the ITMO university.  ...  Adapting VIVO to ITMO University poses three challenges: (1) identifying the peculiarities of the Russian system (2) modelling the resulting additional concepts and (3) appropriately linking them to existing  ... 
dblp:conf/i-semantics/ErmilovHLM15 fatcat:mup4lg3iozeb3bz4qkli53vuu4
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