I am worked as a research fellow in KMi. My research mainly focused on i) building a semantic web portal infrastructure, which aims to make ordinary web sites semantic by adding a semantic data layer to them, and ii) building a methodology, which supports knowledge sharing across different media formats.

Keys: Semantic Search, Semantic Metadata Acquisition, Ontology Mapping, Semantic MetaData Transformation, Conceptual Web Modelling, Ontology-driven Web Site Generation and Customization, User Interface Modelling

Uren, V., Sabou, M., Motta, E., Fernandez, M., Lopez, V. and Lei, Y. (2010) Reflections on five years of evaluating semantic search systems, International Journal of Metadata, Semantics and Ontologies (IJMSO), 5, 2, pp. 87-98

Uren, V., Lei, Y. and Motta, E. (2008) SemSearch: refining semantic search, Demo at ESWC, Tenerife

Uren, V., Lei, Y., Lopez, V., Liu, H., Motta, E. and Giordanino, M. (2007) The usability of semantic search tools: a review, Knowledge Engineering Review, 22, 4, pp. 361-377

Lei, Y., Uren, V. and Motta, E. (2007) SemEval: A Framework for Evaluating Semantic Metadata, The Fourth International Conference on Knowledge Capture, KCAP 2007, Whistler, BC

Lei, Y., Lopez, V., Motta, E. and Uren, V. (2007) An Infrastructure for Building Semantic Web Portals, Journal of Web Engineering, 2007, 6, 4

Lei, Y., Uren, V. and Motta, E. (2007) SemRef: An Evaluation Refererence Model for Semantic Metadata, Poster at 4th European Semantic Web Conference

Lei, Y., Uren, V. and Motta, E. (2006) SemSearch: A Search Engine for the Semantic Web, 15th International Conference on Knowledge Engineering and Knowledge Management Managing Knowledge in a World of Networks (EKAW 2006), Podebrady, Czech Republic

Lei, Y., Sabou, M., Lopez, V., Zhu, J., Uren, V. and Motta, E. (2006) An Infrastructure for Acquiring High Quality Semantic Metadata, the 3rd European Semantic Web Conference (ESWC 2006), Budva, Montenegro

Lei, Y., Lopez, V. and Motta, E. (2006) An Infrastructure for Building Semantic Web Portals, Workshop: International Workshop on Web Information System Modeling (WISM 2006), Luxembourg

Lei, Y., Motta, E. and Domingue, J. (2005) OntoWeaver: an Ontology-based Approach to the Design of Data-intensive Web Sites, Journal of Web Engineering, 4, 3, pp. 244 - 262

Lei, Y. (2005) An instance mapping ontology for the semantic web, The third International conference on Knowledge Capture (2005), Banff, Canada

Hakimpour, F., Domingue, J., Motta, E., Cabral, L. and Lei, Y. (2004) Integration of OWL-S into IRS-III, Workshop: AKT Workshop on Semantic Web Services, KMi, The Open University, Milton Keynes, UK

Lei, Y., Motta, E. and Domingue, J. (2004) OntoWeaver S: Supporting the Design of Knowledge Portals, International Conference on Knowledge Engineering and Knowledge Management 2004

Lei, Y., Motta, E. and Domingue, J. (2004) Modelling Data Intensive Web Sites with OntoWeaver, Workshop: International Workshop on Web Information Systems Modelling (WISM 2004), Riga, Latvia

Lei, Y., Motta, E. and Domingue, J. (2004) Integrating Web Services into Data intensive Web Sites, Workshop: Workshop on Application Design, Development and Implementation Issues in the Semantic Web at WWW 2004

Lei, Y., Motta, E. and Domingue, J. (2003) Design of Customized Web Applications with OntoWeaver, The second International Conference on Knowledge Capture, Florida, USA Proceedings of the second International Conference on Knowledge Capture

Lei, Y., Motta, E. and Domingue, J. (2002) An Ontology Driven Approach to Web Site Generation and Maintenance, 13th International Conference on Knowledge Engineering and Management (EKAW 2002), Sigüenza, Spain

Lei, Y., Motta, E. and Domingue, J. (2002) IIPS: an Intelligent Information Presentation System, The 7th international conference on Intelligent user interfaces Proceedings of the 7th international conference on Intelligent user interfaces, pp. 200 201