Communications of the ACM
Communications of the ACM - Supporting community and building social capital
Data Quality for the Information Age
Data Quality for the Information Age
Query processing with quality control in the World Wide Web
World Wide Web
Trusting Information Sources One Citizen at a Time
ISWC '02 Proceedings of the First International Semantic Web Conference on The Semantic Web
Distance-based outliers: algorithms and applications
The VLDB Journal — The International Journal on Very Large Data Bases
POLICY '03 Proceedings of the 4th IEEE International Workshop on Policies for Distributed Systems and Networks
Practical Lineage Tracing in Data Warehouses
ICDE '00 Proceedings of the 16th International Conference on Data Engineering
Explaining reasoning in description logics
Explaining reasoning in description logics
Computing and applying trust in web-based social networks
Computing and applying trust in web-based social networks
Beyond accuracy: what data quality means to data consumers
Journal of Management Information Systems
Web Semantics: Science, Services and Agents on the World Wide Web
Quality-driven query answering for integrated information systems
Quality-driven query answering for integrated information systems
Piggy bank: experience the semantic web inside your web browser
ISWC'05 Proceedings of the 4th international conference on The Semantic Web
Semantics and complexity of SPARQL
ISWC'06 Proceedings of the 5th international conference on The Semantic Web
When owl: sameAs isn't the same: an analysis of identity in linked data
ISWC'10 Proceedings of the 9th international semantic web conference on The semantic web - Volume Part I
Using semantic web resources for data quality management
EKAW'10 Proceedings of the 17th international conference on Knowledge engineering and management by the masses
Linked data metrics for flexible expert search on the open web
ESWC'11 Proceedings of the 8th extended semantic web conference on The semantic web: research and applications - Volume Part I
Rule-based trust assessment on the semantic web
RuleML'2011 Proceedings of the 5th international conference on Rule-based reasoning, programming, and applications
Web quality assessment model: trust in QA social networks
UIC'11 Proceedings of the 8th international conference on Ubiquitous intelligence and computing
DC proposal: evaluating trustworthiness of web content using semantic web technologies
ISWC'11 Proceedings of the 10th international conference on The semantic web - Volume Part II
DC proposal: towards linked data assessment and linking temporal facts
ISWC'11 Proceedings of the 10th international conference on The semantic web - Volume Part II
Representing distributed groups with dgFOAF
ESWC'10 Proceedings of the 7th international conference on The Semantic Web: research and Applications - Volume Part II
Semi-automatic semantic moderation of web annotations
Proceedings of the 21st international conference companion on World Wide Web
Fast track article: Using snapshot query fidelity to adapt continuous query execution
Pervasive and Mobile Computing
Sieve: linked data quality assessment and fusion
Proceedings of the 2012 Joint EDBT/ICDT Workshops
Leveraging matching dependencies for guided user feedback in linked data applications
Proceedings of the Ninth International Workshop on Information Integration on the Web
Assessing linked data mappings using network measures
ESWC'12 Proceedings of the 9th international conference on The Semantic Web: research and applications
A multi-layer framework for personalized social tag-based applications
Data & Knowledge Engineering
Quality reasoning in the semantic web
ISWC'12 Proceedings of the 11th international conference on The Semantic Web - Volume Part II
Assessing linkset quality for complementing third-party datasets
Proceedings of the Joint EDBT/ICDT 2013 Workshops
User-driven quality evaluation of DBpedia
Proceedings of the 9th International Conference on Semantic Systems
Introduction to linked data and its lifecycle on the web
RW'13 Proceedings of the 9th international conference on Reasoning Web: semantic technologies for intelligent data access
Test-driven evaluation of linked data quality
Proceedings of the 23rd international conference on World wide web
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Web-based information systems, such as search engines, news portals, and community sites, provide access to information originating from numerous information providers. The quality of provided information varies as information providers have different levels of knowledge and different intentions. Users of web-based systems are therefore confronted with the increasingly difficult task of selecting high-quality information from the vast amount of web-accessible information. How can information systems support users to distinguish high-quality from low-quality information? Which filtering mechanisms can be used to suppress low-quality information? How can filtering decisions be explained to the user? This article identifies information quality problems that arise in the context of web-based systems, and gives an overview of quality indicators as well as information quality assessment metrics for web-based systems. Afterwards, we introduce the WIQA-Information Quality Assessment Framework. The framework enables information consumers to apply a wide range of policies to filter information. The framework employs the Named Graphs data model for the representation of information together with quality-related meta-information. The framework uses the WIQA-PL policy language for expressing information filtering policies against this data model. WIQA-PL policies are expressed in the form of graph patterns and filter conditions. This allows the compact representation of policies that rely on complex meta-information such as provenance chains or combinations of provenance information and background information about information providers. In order to facilitate the information consumers' understanding of filtering decisions, the framework generates explanations of why information satisfies a specific policy.