Assessing agreement on classification tasks: the kappa statistic
Computational Linguistics
Foundations of statistical natural language processing
Foundations of statistical natural language processing
Towards a standard upper ontology
Proceedings of the international conference on Formal Ontology in Information Systems - Volume 2001
Measuring Similarity between Ontologies
EKAW '02 Proceedings of the 13th International Conference on Knowledge Engineering and Knowledge Management. Ontologies and the Semantic Web
Sweetening Ontologies with DOLCE
EKAW '02 Proceedings of the 13th International Conference on Knowledge Engineering and Knowledge Management. Ontologies and the Semantic Web
A corpus-based investigation of definite description use
Computational Linguistics
Swoogle: a search and metadata engine for the semantic web
Proceedings of the thirteenth ACM international conference on Information and knowledge management
Learning domain ontologies for Web service descriptions: an experiment in bioinformatics
WWW '05 Proceedings of the 14th international conference on World Wide Web
Unsupervised learning of semantic relations between concepts of a molecular biology ontology
IJCAI'05 Proceedings of the 19th international joint conference on Artificial intelligence
Lexically evaluating ontology triples generated automatically from texts
ESWC'05 Proceedings of the Second European conference on The Semantic Web: research and Applications
Data & Knowledge Engineering
Learning non-taxonomic relationships from web documents for domain ontology construction
Data & Knowledge Engineering
Building ontological relationships: A new approach
Journal of the American Society for Information Science and Technology
ESWC '07 Proceedings of the 4th European conference on The Semantic Web: Research and Applications
Mining the Web Through Verbs: A Case Study
ESWC '07 Proceedings of the 4th European conference on The Semantic Web: Research and Applications
Integrating Folksonomies with the Semantic Web
ESWC '07 Proceedings of the 4th European conference on The Semantic Web: Research and Applications
Semantic information extraction from Tamil documents
International Journal of Metadata, Semantics and Ontologies
Semantic enrichment of places: Ontology learning from web
International Journal of Knowledge-based and Intelligent Engineering Systems - Intelligent agents and services for smart environments
Acquiring Semantic Relations Using the Web for Constructing Lightweight Ontologies
PAKDD '09 Proceedings of the 13th Pacific-Asia Conference on Advances in Knowledge Discovery and Data Mining
Supporting the discovery and labeling of non-taxonomic relationships in ontology learning
Expert Systems with Applications: An International Journal
On2L: a framework for incremental ontology learning in spoken dialog systems
COLING ACL '06 Proceedings of the 21st International Conference on computational Linguistics and 44th Annual Meeting of the Association for Computational Linguistics: Student Research Workshop
Learning Expressive Ontologies
Proceedings of the 2008 conference on Ontology Learning and Population: Bridging the Gap between Text and Knowledge
Extracting Relations towards Ontology Extension
KES-AMSTA '09 Proceedings of the Third KES International Symposium on Agent and Multi-Agent Systems: Technologies and Applications
Statistical term profiling for query pattern mining
BioNLP '08 Proceedings of the Workshop on Current Trends in Biomedical Natural Language Processing
Discovery and evaluation of non-taxonomic relations in domain ontologies
International Journal of Metadata, Semantics and Ontologies
Scaling natural language understanding via user-driven ontology learning
ScaNaLU '06 Proceedings of the Third Workshop on Scalable Natural Language Understanding
Extracting keyphrases to represent relations in social networks from web
IJCAI'07 Proceedings of the 20th international joint conference on Artifical intelligence
Modeling Common Real-Word Relations Using Triples Extracted from n-Grams
ASWC '09 Proceedings of the 4th Asian Conference on The Semantic Web
PORE: positive-only relation extraction from wikipedia text
ISWC'07/ASWC'07 Proceedings of the 6th international The semantic web and 2nd Asian conference on Asian semantic web conference
Learning medical ontologies from the web
AIME'07 Proceedings of the 2007 conference on Knowledge management for health care procedures
Refining non-taxonomic relation labels with external structured data to support ontology learning
Data & Knowledge Engineering
Discovery of relation axioms from the web
KSEM'10 Proceedings of the 4th international conference on Knowledge science, engineering and management
Journal of Biomedical Informatics
Semi-automatic financial events discovery based on lexico-semantic patterns
International Journal of Web Engineering and Technology
GRAONTO: A graph-based approach for automatic construction of domain ontology
Expert Systems with Applications: An International Journal
Ontology learning from biomedical natural language documents using UMLS
Expert Systems with Applications: An International Journal
Ontology population and enrichment: state of the art
Knowledge-driven multimedia information extraction and ontology evolution
Identifying relations between medical concepts by parsing UMLS® definitions
ICCS'11 Proceedings of the 19th international conference on Conceptual structures for discovering knowledge
Contextual ontology module learning from web snippets and past user queries
KES'11 Proceedings of the 15th international conference on Knowledge-based and intelligent information and engineering systems - Volume Part II
An ontology-based retrieval system using semantic indexing
Information Systems
Learning non-taxonomical semantic relations from domain texts
Journal of Intelligent Information Systems
Extracting relations in social networks from the web using similarity between collective contexts
ISWC'06 Proceedings of the 5th international conference on The Semantic Web
Towards knowledge acquisition from information extraction
ISWC'06 Proceedings of the 5th international conference on The Semantic Web
A hybrid approach for relation extraction aimed at the semantic web
FQAS'06 Proceedings of the 7th international conference on Flexible Query Answering Systems
An ontology supported approach to learn term to concept mapping
PKAW'06 Proceedings of the 9th Pacific Rim Knowledge Acquisition international conference on Advances in Knowledge Acquisition and Management
Enhancing relation extraction by eliciting selectional constraint features from wikipedia
NLDB'07 Proceedings of the 12th international conference on Applications of Natural Language to Information Systems
Discovering semantic relations using prepositional phrases
ISMIS'12 Proceedings of the 20th international conference on Foundations of Intelligent Systems
A semi-automatic approach for building ontologies from acollection of structured web documents
Proceedings of the seventh international conference on Knowledge capture
Journal of Web Engineering
Coupling semantic and statistical techniques for dynamically enriching web ontologies
Journal of Intelligent Information Systems
Development and evaluation of a biomedical search engine using a predicate-based vector space model
Journal of Biomedical Informatics
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Domain ontologies very rarely model verbs as relations holding between concepts. However, the role of the verb as a central connecting element between concepts is undeniable. Verbs specify the interaction between the participants of some action or event by expressing relations between them. In parallel, it can be argued from an ontology engineering point of view that verbs express a relation between two classes that specify domain and range. The work described here is concerned with relation extraction for ontology extension along these lines. We describe a system (RelExt) that is capable of automatically identifying highly relevant triples (pairs of concepts connected by a relation) over concepts from an existing ontology. RelExt works by extracting relevant verbs and their grammatical arguments (i.e. terms) from a domain-specific text collection and computing corresponding relations through a combination of linguistic and statistical processing. The paper includes a detailed description of the system architecture and evaluation results on a constructed benchmark. RelExt has been developed in the context of the SmartWeb project, which aims at providing intelligent information services via mobile broadband devices on the FIFA World Cup that will be hosted in Germany in 2006. Such services include location based navigational information as well as question answering in the football domain.