Uncertain Reasoning for Creating Ontology Mapping on the Semantic Web (2009)
Miklos Nagy, Maria Vargas-vera, Enrico Motta
Abstract. Mapping ontologies with high precision on the Semantic Web is a challenging problem that needs to be addressed in various domains. One of the main problems with any mapping process, which...
Introducing Fuzzy Trust for Managing Belief Conflict over Semantic Web Data (2009)
Miklos Nagy, Maria Vargas-vera, Enrico Motta
Abstract. Interpreting Semantic Web Data by different human experts can end up in scenarios, where each expert comes up with different and conflicting ideas what a concept can mean and how they...
Ontology Mapping with domain specific agents in the AQUA Question Answering system (2009)
Miklos Nagy, Maria Vargas-vera, Enrico Motta
Abstract. This paper describes a domain specific multi-agent ontologymapping solution in the AQUA query answering system. In order to incorporate uncertainty inherent to the mapping process, the...
DSSim Results for OAEI 2008 (2009)
Miklos Nagy, Maria Vargas-vera, Piotr Stolarski
Abstract. The growing importance of ontology mapping on the Semantic Web has highlighted the need to manage the uncertain nature of interpreting semantic meta data represented by heterogeneous...
159 Event Recognition on News Stories and Semi-Automatic Population of an Ontology (2009)
Maria Vargas-vera, David Celjuska
This paper describes a system which recognizes events on news stories. Our system classifies stories and populates a hand-crafted ontology with new instances of classes defined in it. Currently, our...
DSSim- Managing Uncertainty on the Semantic Web (2008)
Miklos Nagy, Maria Vargas-vera, Enrico Motta
Abstract. Managing uncertainty on the Semantic Web can potentially improve the ontology mapping precision which can lead to better acceptance of systems that operate in this environment. Further...
Ontology Mapping with domain specific agents in the AQUA Question Answering system (2008)
Miklos Nagy, Maria Vargas-vera, Enrico Motta, Miklos Nagy, Maria Vargas-vera, Enrico Motta
Abstract. This paper describes a domain specific multi-agent ontologymapping solution in the AQUA query answering system. In order to incorporate uncertainty inherent to the mapping process, the...
Document retrieval based on intelligent query formulation (2008)
Gaston G. Burek, Maria Vargas-vera, Gaston G. Burek
Document retrieval based on intelligent query formulation Tech Report kmi-04-13
AQUA: A Question Answering System for Heterogeneous Sources (2008)
Maria Vargas-vera, Enrico Motta, Maria Vargas-vera, Enrico Motta
This paper describes AQUA our question answering over the Web. AQUA was designed to work over heterogeneous sources. This means that AQUA is equipped to work as closed domain and in addition to...
AQUA: A Knowledge-Based Architecture for a Question Answering (2008)
Maria Vargas-vera, Enrico Motta, Maria Vargas-vera, Enrico Motta
This paper describes AQUA, a question answering system. AQUA combines Natural Language processing (NLP), Ontologies, Logic, and Information Retrieval technologies in a uniform framework. AQUA makes...
Ontology-driven Event Recognition on Stories (2008)
This paper describes a system which recognizes events on stories. Our system classifies stories and populates a KMi Planet ontology with new instances of classes defined in it. Currently, the system...
Ontosophie: A Semi-Automatic System for Ontology (2008)
Population From Text, David Celjuska, David Celjuska, Dr. Maria Vargas-vera, Dr. Maria Vargas-vera
This paper describes a system for semi-automatic population of ontologies with instances from unstructured text. It is based on supervised learning, learns extraction rules from annotated text and...
Building Semantic Intranets: What is Needed in the Annotation Toolbox? (2008)
Walton Hall, Victoria Uren, José Iria, Siegfried H, Maria Vargas-vera, Enrico Motta, ...
While much of a company's explicit knowledge can be found in text repositories, current content management systems only provide limited capabilities for structuring and making sense of...
navigating knowledge with ontology-driven (2007)
Yannis Kalfoglou, Yannis Kalfoglou, John Domingue, John Domingue, Leslie Carr, Leslie Carr, ...
On the integration of technologies for capturing and navigating knowledge with ontology-driven services
navigating knowledge with ontology-driven (2007)
Yannis Kalfoglou, Yannis Kalfoglou, John Domingue, John Domingue, Leslie Carr, Leslie Carr, ...
On the integration of technologies for capturing and navigating knowledge with ontology-driven services
Uren, Victoria, Cimiano, Philipp, Iria, Jose, Hanndschuh, Siegfried, Vargas-Vera, Maria, Motta, Enrico, ...
While much of a company's knowledge can be found in text repositories, current content management systems have limited capabilities for structuring and interpreting documents. In the emerging...
DSSim-ontology Mapping with Uncertainty (2006)
Miklos Nagy, Maria Vargas-vera, Enrico Motta
Abstract. This paper introduces an ontology mapping system that is used with a multi agent ontology mapping framework in the context of question answering. Our mapping algorithm incorporates the...
Automatic extraction of knowledge from student essays (2005)
Vargas-Vera, Maria, Moreale, Emanuela
This paper presents a characterisation of argumentation in student essays and analyses patterns for extracting knowledge from them. Having analysed their complexity in light of the kinds of logic...
Semantic services in e-learning: an argumentation case study (2004)
Moreale, Emanuela, Vargas-Vera, Maria
This paper outlines an e-Learning services architecture offering semantic-based services to students and tutors, in particular ways to browse and obtain information through web services. Services...
Event recognition on news stories and semi-automatic population of an ontology (2004)
Vargas-Vera, Maria, Celjuska, David
This paper describes a system which recognizes events on news stories. Our system classifies stories and populates a hand-crafted ontology with new instances of classes defined in it. Currently, our...
Gaston G. Burek, Maria Vargas-vera
A full understanding of text is out of reach of current human language technology. However, a shallow Natural Language Processing (NLP) approach can be used to provide automated help in the...
Semantic Services in e-Learning: an Argumentation Case Study (2004)
Emanuela Moreale, Maria Vargas-vera
This paper outlines an e-Learning services architecture offering semantic-based services to students and tutors, in particular ways to browse and obtain information through web services. Services...
Event Recognition on News Stories and Semi-Automatic Population of an Ontology (2004)
David Celjuska, Maria Vargas-Vera, Maria Vargas-vera
This paper describes a system which recognizes events on news stories. Our system classifies stories and populates a hand-crafted ontology with new instances of classes defined in it. Currently, our...
Semi-Automatic Population of Ontologies from Text (2004)
David Celjuska, Maria Vargas-Vera, Dávid Čeljuska, Dr. Maria Vargas-vera, Dr. Maria Vargas-vera
This paper describes a system for semi-automatic population of ontologies with instances from unstructured text. The system is based on supervised learning and therefore learns extraction rules from...
Semantic Services in e-Learning: an Argumentation Case Study (2004)
Emanuela Moreale, Maria Vargas-vera
This paper outlines an e-Learning services architecture offering semantic-based services to students and tutors, in particular ways to browse and obtain information through web services. Services...
A Knowledge-Based Approach to Ontologies Data Integration (2004)
Maria Vargas-vera, Maria Vargas-vera, Enrico Motta, Enrico Motta
This paper describes a proposal of multiple ontology data integration system for a question answering framework called AQUA. We propose an approach for mediating between a given query and a set of...
An Ontology-driven Similarity Algorithm (2004)
Maria Vargas-vera, Maria Vargas-vera, Enrico Motta, Enrico Motta
Abstract. This paper presents our similarity algorithm between relations in a user query written in FOL ( first order logic) and ontological relations. Our similarity algorithm takes two graphs and...
A Question-Answering System Using Argumentation (2004)
Emanuela Moreale, Maria Vargas-vera
Abstract. This paper presents a novel approach to question answering: the use of argumentation techniques. Our question answering system deals with argumentation in student essays: it sees an essay...
Emanuela Moreale, Gaston G. Burek, Gaston G. Burek, Maria Vargas-vera, Maria Vargas-vera
A full understanding of text is out of reach of current human language technology. However, a shallow Natural Language Processing (NLP) approach can be used to provide automated help in the...
AQUA: an ontology driven question answering system (2003)
Vargas-Vera, Maria, Motta, Enrico, Domingue, John
This paper describes AQUA our question answering over the Web. AQUA was designed to work over heterogeneous sources. This means that AQUA is equipped to work as closed domain and in addition to...
Genre analysis and the automated extraction of arguments from student essays (2003)
Moreale, Emanuela, Vargas-Vera, Maria
This is a conference paper.
MnM: A Tool for Automatic Support on Semantic Markup, KMi (2003)
Maria Vargas-vera, Enrico Motta, John Domingue, Mattia Lanzoni, Arthur Stutt, Fabio Ciravegna
Abstract. An important precondition for realizing the goal of a semantic web is the ability to annotate web re-sources with semantic information. In order to carry out this task, users need...
Genre Analysis and the Automated Extraction of Arguments from (2003)
Emanuela Moreale, Emanuela Moreale, Maria Vargas-vera, Maria Vargas-vera
A full understanding of text is out of reach of current human language technology. However, a shallow Natural Language Processing (NLP) approach can be used to provide automated help in the...
MnM: ontology driven semi automatic and automatic support for semantic markup (2002)
Vargas-Vera, Maria, Motta, Enrico, Domingue, John, Lanzoni, Mattia, Stutt, Arthur, Ciravegna, Fabio
An important precondition for realizing the goal of a semantic web is the ability to annotate web resources with semantic information. In order to carry out this task, users need appropriate...
MnM: Ontology Driven Semi-Automatic and Automatic Support for Semantic Markup (2002)
Maria Vargas-vera, Enrico Motta, John Domingue, Mattia Lanzoni, Fabio Ciravegna
Abstract. An important precondition for realizing the goal of a semantic web is the ability to annotate web resources with semantic information. In order to carry out this task, users need...
Supporting ontology driven document enrichment within communities of practice (2001)
Domingue, John, Motta, Enrico, Shum, Simon Buckingham, Vargas-Vera, Maria, Kalfoglou, Yannis
Supporting ontology driven document enrichment within communities of practice (2001)
Domingue, John, Motta, Enrico, Shum, Simon Buckingham, Vargas-Vera, Maria, Kalfoglou, Yannis
Supporting ontology driven document enrichment within communities of practice (2001)
Domingue, John, Motta, Enrico, Shum, Simon Buckingham, Vargas-Vera, Maria, Kalfoglou, Yannis
Template-driven information extraction for populating ontologies (2001)
Vargas-Vera, Maria, Domingue, John, Kalfoglou, Yannis, Motta, Enrico, Shum, Simon Buckingham
We address the integration of information extraction(IE) and ontologies. In particular, using an ontology to aid the IE process, and using the IE results to help populate the ontology. We perform IE...
MyPlanet: an ontology-driven Web-based personalised news service (2001)
Kalfoglou, Yannis, Domingue, John, Motta, Enrico, Vargas-Vera, Maria, Shum, Simon Buckingham
In this paper we present myPlanet, an ontology-driven personalised Web-based service. We extended the existing infrastructure of the PlanetOnto news publishing system. Our concerns were mainly to...
Template-driven information extraction for populating ontologies (2001)
Vargas-Vera, Maria, Domingue, John, Kalfoglou, Yannis, Motta, Enrico, Shum, Simon Buckingham
We address the integration of information extraction(IE) and ontologies. In particular, using an ontology to aid the IE process, and using the IE results to help populate the ontology. We perform IE...
MyPlanet: an ontology-driven Web-based personalised news service (2001)
Kalfoglou, Yannis, Domingue, John, Motta, Enrico, Vargas-Vera, Maria, Shum, Simon Buckingham
In this paper we present myPlanet, an ontology-driven personalised Web-based service. We extended the existing infrastructure of the PlanetOnto news publishing system. Our concerns were mainly to...
Template-driven information extraction for populating ontologies (2001)
Vargas-Vera, Maria, Domingue, John, Kalfoglou, Yannis, Motta, Enrico, Shum, Simon Buckingham
We address the integration of information extraction(IE) and ontologies. In particular, using an ontology to aid the IE process, and using the IE results to help populate the ontology. We perform IE...
MyPlanet: an ontology-driven Web-based personalised news service (2001)
Kalfoglou, Yannis, Domingue, John, Motta, Enrico, Vargas-Vera, Maria, Shum, Simon Buckingham
In this paper we present myPlanet, an ontology-driven personalised Web-based service. We extended the existing infrastructure of the PlanetOnto news publishing system. Our concerns were mainly to...
Kalfoglou, Yannis, Domingue, John, Carr, Leslie, Motta, Enrico, Vargas-Vera, Maria, Buckingham Shum, Simon
Nowadays, many distinct communities are researching for knowledge capturing, modelling, and navigation. Moreover, advances in Internet technology makes it possible to perform most of these task on...
Kalfoglou, Yannis, Domingue, John, Carr, Leslie, Motta, Enrico, Vargas-Vera, Maria, Shum, Simon Buckingham
Kalfoglou, Yannis, Dominque, John, Carr, Lesley, Motta, Enrico, Vargas-Vera, Maria, Buckingham-Shum, Simon
Kalfoglou, Yannis, Domingue, John, Carr, Leslie, Motta, Enrico, Vargas-Vera, Maria, Shum, Simon Buckingham
Kalfoglou, Yannis, Dominque, John, Carr, Lesley, Motta, Enrico, Vargas-Vera, Maria, Buckingham-Shum, Simon
Kalfoglou, Yannis, Domingue, John, Carr, Leslie, Motta, Enrico, Vargas-Vera, Maria, Shum, Simon Buckingham
Kalfoglou, Yannis, Dominque, John, Carr, Lesley, Motta, Enrico, Vargas-Vera, Maria, Buckingham-Shum, Simon
MyPlanet: an ontology-driven Web-based personalised news service (2001)
Kalfoglou, Yannis, Domingue, John, Motta, Enrico, Vargas-Vera, Maria, Buckingham Shum, Simon
In this paper we present myPlanet, an ontology-driven personalised Web-based service. We extended the existing infrastructure of the PlanetOnto news publishing system. Our concerns were mainly to...
Template-driven information extraction for populating ontologies (2001)
Vargas-vera, Maria, Domingue, John, Kalfoglou, Yannis, Motta, Enrico, Buckingham Shum, Simon
We address the integration of information extraction(IE) and ontologies. In particular, using an ontology to aid the IE process, and using the IE results to help populate the ontology. We perform IE...
Supporting ontology-driven document enrichment within communities of practice (2001)
Domingue, John, Motta, Enrico, Buckingham Shum, Simon, Vargas-vera, Maria, Kalfoglou, Yannis
Formative work by Lave and Wenger has articulated how practices emerge through the interplay of informal processes with symbolic codifications and artifacts. In this paper, we describe how ontologies...
Supporting ontology driven document enrichment within communities of practice (2001)
Dominque, John, Motta, Enrico, Buckingham-Shum, Simon, Vargas-Vera, Maria, Kalfoglou, Yannis
MyPlanet: an ontology-driven Web-based personalised news service (2001)
Kalfoglou, Yannis, Domingue, John, Motta, Enrico, Vargas-Vera, Maria, Buckingham-Shum, Simon
In this paper we present myPlanet, an ontology-driven personalised Web-based service. We extended the existing infrastructure of the PlanetOnto news publishing system. Our concerns were mainly to...
Template-driven information extraction for populating ontologies (2001)
Vargas-Vera, Maria, Dominque, John, Kalfoglou, Yannis, Motta, Enrico, Buckingham-Schum, Simon
We address the integration of information extraction(IE) and ontologies. In particular, using an ontology to aid the IE process, and using the IE results to help populate the ontology. We perform IE...
Supporting ontology driven document enrichment within communities of practice (2001)
Dominque, John, Motta, Enrico, Buckingham-Shum, Simon, Vargas-Vera, Maria, Kalfoglou, Yannis
MyPlanet: an ontology-driven Web-based personalised news service (2001)
Kalfoglou, Yannis, Domingue, John, Motta, Enrico, Vargas-Vera, Maria, Buckingham-Shum, Simon
In this paper we present myPlanet, an ontology-driven personalised Web-based service. We extended the existing infrastructure of the PlanetOnto news publishing system. Our concerns were mainly to...
Template-driven information extraction for populating ontologies (2001)
Vargas-Vera, Maria, Dominque, John, Kalfoglou, Yannis, Motta, Enrico, Buckingham-Schum, Simon
We address the integration of information extraction(IE) and ontologies. In particular, using an ontology to aid the IE process, and using the IE results to help populate the ontology. We perform IE...
Supporting ontology driven document enrichment within communities of practice (2001)
Dominque, John, Motta, Enrico, Buckingham-Shum, Simon, Vargas-Vera, Maria, Kalfoglou, Yannis
MyPlanet: an ontology-driven Web-based personalised news service (2001)
Kalfoglou, Yannis, Domingue, John, Motta, Enrico, Vargas-Vera, Maria, Buckingham-Shum, Simon
In this paper we present myPlanet, an ontology-driven personalised Web-based service. We extended the existing infrastructure of the PlanetOnto news publishing system. Our concerns were mainly to...
Template-driven information extraction for populating ontologies (2001)
Vargas-Vera, Maria, Dominque, John, Kalfoglou, Yannis, Motta, Enrico, Buckingham-Schum, Simon
We address the integration of information extraction(IE) and ontologies. In particular, using an ontology to aid the IE process, and using the IE results to help populate the ontology. We perform IE...
Supporting Ontology Driven Document Enrichment Within Communities of Practice (2001)
John Domingue, Enrico Motta, Maria Vargas-vera, Yannis Kalfoglou, Nick Farnes
Formative work by Lave and Wenger has articulated how practices emerge through the interplay of informal processes with symbolic codifications and artifacts. In this paper, we describe how ontologies...
Knowledge Extraction by using an Ontology-based Annotation Tool (2001)
Maria Vargas-vera, Enrico Motta, John Domingue, Simon Buckingham Shum, Mattia Lanzoni
This paper describes a Semantic Annotation Tool for extraction of knowledge structures from web pages through the use of simple user-defined knowledge extraction patterns. The semantic annotation...
Knowledge Extraction by using an Ontology-based Annotation Tool (2001)
Maria Vargas-vera, Enrico Motta, John Domingue, Simon Buckingham Shum, Mattia Lanzoni
This paper describes a Semantic Annotation Tool for extraction of knowledge structures from web pages through the use of simple user-defined knowledge extraction patterns. The semantic annotation...
Supporting Ontology Driven Document Enrichment Within Communities of Practice (2001)
John Domingue, Enrico Motta, Simon Buckingham Shum, Maria Vargas-vera, Yannis Kalfoglou
Formative work by Lave and Wenger has articulated how practices emerge through the interplay of informal processes with symbolic codifications and artifacts. In this paper, we describe how ontologies...
MyPlanet: an ontology-driven Web-based personalised news service (2001)
Yannis Kalfoglou, Yannis Kalfoglou, John Domingue, John Domingue, Enrico Motta, Enrico Motta, ...
www.kmi.open.ac.uk/tr/papers/kmi-tr-102.pdf
MyPlanet: an ontology-driven Web-based personalised news service (2001)
Yannis Kalfoglou, Yannis Kalfoglou, John Domingue, John Domingue, Enrico Motta, Enrico Motta, ...
In this paper we present myPlanet, an ontologydriven personalised Web-based service. We extended the existing infrastructure of the PlanetOnto news publishing system. Our concerns were mainly to...
myPlanet: an ontology-driven Web-based personalised news service (2001)
Yannis Kalfoglou John, John Domingue, Enrico Motta, Maria Vargas-vera, Simon Buckingham Shum
In this paper we present myPlanet, an ontologydriven personalised Web-based service. We extended the existing infrastructure of the PlanetOnto news publishing system. Our concerns were mainly to...
Supporting Ontology Driven Document Enrichment (2001)
Within Communities Of, John Domingue, Enrico Motta, Maria Vargas-vera, Yannis Kalfoglou, Nick Farnes
Formative work by Lave and Wenger has articulated how practices emerge through the interplay of informal processes with symbolic codifications and artifacts. In this paper, we describe how ontologies...
myPlanet: an ontology-driven Web-based personalised news service (2001)
Yannis Kalfoglou John, John Domingue, Enrico Motta, Maria Vargas-vera, Simon Buckingham Shum
In this paper we present myPlanet, an ontologydriven personalised Web-based service. We ex- tended the existing infrastructure of the Plane- tOnto news publishing system. Our concerns were mainly to...
navigating knowledge with ontology-driven (2001)
Yannis Kalfoglou, Yannis Kalfoglou, John Domingue, John Domingue, Leslie Carr, Leslie Carr, ...
Nowadays, many distinct communities are researching on technologies for knowledge capturing, modelling, and navigation. Moreover, advances in Internet technology makes it possible to perform most of...
Integration of Information Extraction with an Ontology (2001)
M. Vargas-vera, J. Domingue, Y. Kalfoglou, E. Motta, S. Buckingham Shum, Maria Vargas-vera, ...
www.kmi.open.ac.uk/tr/papers/kmi-tr-109.pdf
Knowledge Extraction by using an Ontology-based Annotation Tool (2001)
Maria Vargas-vera, Enrico Motta, John Domingue, Simon Buckingham Shum, Mattia Lanzoni
This paper describes a Semantic Annotation Tool for extraction of knowledge structures from web pages through the use of simple user-defined knowledge extraction patterns. The semantic annotation...
Yannis Kalfoglou, John Domingue, Enrico Motta, Maria Vargas-vera, Simon Buckingham Shum, Yannis Kalfoglou, ...
In this paper we present myPlanet, an ontologydriven personalised Web-based service. We extended the existing infrastructure of the PlanetOnto news publishing system. Our concerns were mainly to...