Information retrieval by constrained spreading activation in semantic networks
Information Processing and Management: an International Journal - Artificial Intelligence and Information Retrieval
A hybrid approach for searching in the semantic web
Proceedings of the 13th international conference on World Wide Web
Possible Ontologies: How Reality Constrains the Development of Relevant Ontologies
IEEE Internet Computing
Efficiently querying rdf data in triple stores
Proceedings of the 17th international conference on World Wide Web
Enhanced Query Expansion in English-Arabic CLIR
DEXA '08 Proceedings of the 2008 19th International Conference on Database and Expert Systems Application
Searching over Public Administration Legal Documents Using Ontologies
Proceedings of the 2006 conference on Knowledge-Based Software Engineering: Proceedings of the Seventh Joint Conference on Knowledge-Based Software Engineering
Ad-hoc object retrieval in the web of data
Proceedings of the 19th international conference on World wide web
Document similarity: a new measure using OWA
FSKD'09 Proceedings of the 6th international conference on Fuzzy systems and knowledge discovery - Volume 7
Foundations of SPARQL query optimization
Proceedings of the 13th International Conference on Database Theory
Caching search engine results over incremental indices
Proceedings of the 33rd international ACM SIGIR conference on Research and development in information retrieval
HYDRA: a middleware-oriented integrated architecture for e-procurement in supply chains
Transactions on computational collective intelligence I
Semantics and optimization of the SPARQL 1.1 federation extension
ESWC'11 Proceedings of the 8th extended semantic web conference on The semanic web: research and applications - Volume Part II
Towards a theoretical foundation for the harmonization of linked data
ISWC'12 Proceedings of the 11th international conference on The Semantic Web - Volume Part II
| Hi-index | 0.00 |
The aim of this paper is to present some methods to expand user queries and a performance evaluation to retrieve public procurement notices in the e-Procurement sector using semantics and linking open data. Taking into account that public procurement notices contain information variables like type of contract, region, duration, total value, target enterprise, etc. different methods can be applied to expand user queries easing the access to the information and providing a more accurate information retrieval system. Nevertheless expanded user queries can involve an extra-time in the process of retrieving notices. That is why a performance evaluation is outlined to tune up the semantic methods and the generated queries providing a scalable and time-efficient system. On the other hand this system is based on the use of semantic web technologies so it is necessary to model the unstructured information included in public procurement notices (organizations, contracting authorities, contracts awarded, etc.), enrich that information with existing product classification systems and linked data vocabularies and publish the relevant data extracted out of the notices following the linking open data approach. In this new LOD realm these techniques are considered to provide added-value services like search, matchmaking geo-reasoning, or prediction, specially relevant to small and medium enterprises (SMEs).