Objects for Construction-based Information Extraction (2008)
Ontolex Programme, Atanas Kiryakov, Ontotext Bulgary, Paola Velardi
9.00-9.40: Ontology-based Reasoning over lexical resources by means of
ADVANCING TOPIC ONTOLOGY LEARNING THROUGH TERM EXTRACTION (2008)
Blaž Fortuna, Nada Lavrač, Paola Velardi
This paper presents a novel methodology for topic ontology learning from text documents. The proposed methodology, named OntoTermExtraction is based on OntoGen, a semi-automated tool for topic...
TermExtractor: a Web Application to Learn the Shared Terminology of Emergent Web Communities (2008)
Francesco Sclano, Paola Velardi
Abstract. In the Semantic Web era, many techniques have been proposed to capture the explicit knowledge of a virtual community, and represent this knowledge in a structured form often referred to as...
Roberto Navigli, Paola Velardi
A knowledge-based approach to ontology learning and
Paola Velardi, Roberto Navigli, Michaël Petit
This paper describes a methodology to semiautomatically acquire a taxonomy of terms and term definitions in a specific research domain. The taxonomy is then used for semantic search and indexing of a...
Automatic Adaptation of WordNet to Domains (2008)
Roberto Navigli, Paola Velardi
The objective of this paper is to present a method to automatically enrich WordNet with sub-trees of concepts in a given language domain. WordNet is then trimmed to reduce unnecessary ambiguity and...
Paola Velardi, Roberto Navigli, Michaël Petit
This paper describes a methodology to semiautomatically acquire a taxonomy of terms and term definitions in a specific research domain. The taxonomy is then used for semantic search and indexing of a...
Ontology Enrichment Through Automatic Semantic Annotation of On-Line Glossaries (2008)
Roberto Navigli, Paola Velardi
Abstract. The contribution of this paper is to provide a methodology for automatic ontology enrichment and for document annotation with the concepts and properties of a domain core ontology. Natural...
Advancing topic ontology learning through term extraction. (2008)
Fortuna, Blaz, Lavrac, Nada, Velardi, Paola
Advancing topic ontology learning through term extraction.
Word Sense Disambiguation (WSD) is a central task in the area of Natural Language Processing. In the past few years several context-based probabilistic and machine learning methods for WSD have been...
Because they wilt keep their job quite for a few. lhis paper has been inspired by a recent editorial on the Financial Times, that gives a discouraging overview of commercial natural Language...
ADVANCING TOPIC ONTOLOGY LEARNING THROUGH TERM EXTRACTION (2007)
Fortuna, Blaz, Lavrac, Nada, Velardi, Paola
This paper presents a novel methodology for topic ontology learning from text documents. The proposed methodology, named OntoTermExtraction is based on OntoGen, a semi-automated tool for topic...
Nacer Boudjlida, Hervé Panetto, Antonia Albani, Karim Baina, Zohra Bellahsène, Mahmoud Boufaida, ...
The aim of the “Enterprise and Networked Enterprises Interoperability ” (ENEI’05)
Structural semantic interconnections: a knowledge-based approach to word sense disambiguation (2005)
Roberto Navigli, Paola Velardi
Abstract—Word Sense Disambiguation (WSD) is traditionally considered an AI-hard problem. A break-through in this field would have a significant impact on many relevant Web-based applications, such...
Automatic Acquisition of a Thesaurus of Interoperability Terms (2005)
Roberto Navigli, Paola Velardi
Abstract: Enterprise Interoperability is the ability of different organizations to work together and exchange documents, data, services, best practices, etc. A preliminary step towards achieving this...
Extending and enriching WordNet with OntoLearn (2004)
Roberto Navigli, Paola Velardi, Ro Cucchiarelli, Francesca Neri
Abstract. OntoLearn is a system for word sense disambiguation, used to automatically enrich WordNet with domain concepts and to disambiguate WordNet glosses. We summarize the WSD algorithm used by...
Roberto Navigli, Paola Velardi
We present a method and a tool, OntoLearn, aimed at the extraction of domain ontologies from web sites, and more generally from documents shared among the members of virtual organizations. OntoLearn...
Automatic Generation of Glosses in the OntoLearn System (2004)
Alessandro Cucchiarelli, Ro Cucchiarelli, Roberto Navigli, Francesca Neri, Paola Velardi
OntoLearn is a system for automatic acquisition of specialized ontologies from domain corpora, based on a syntactic pattern matching technique for word sense disambiguation, called structural...
Automatic Ontology Learning: Supporting a Per-Concept Evaluation by Domain Experts (2004)
Roberto Navigli, Paola Velardi, Ro Cucchiarelli, Francesca Neri
Abstract. Ontology evaluation is a critical task, even more so when the ontology is the output of an automatic system, rather than the result of a conceptualisation effort produced by a team of...
Learning Domain Ontologies from Document Warehouses and Dedicated Web Sites (2004)
Roberto Navigli, Paola Velardi
We present a method and a tool, OntoLearn, aimed at the extraction of domain ontologies from Web sites, and more generally from documents shared among the members of virtual organizations. OntoLearn...
Extending and Enriching WordNet with OntoLearn (2004)
Roberto Navigli, Paola Velardi, Alessandro Cucchiarelli, Francesca Neri, Ro Cucchiarelli
OntoLearn is a system for word sense disambiguation, used to automatically enrich WordNet with domain concepts and to disambiguate WordNet glosses. We summarize the WSD algorithm used by Ontolearn,...
Ontology Learning and its Application to Automated Terminology Translation (2003)
Roberto Navigli, Paola Velardi, La Sapienza
for automated ontology learning extracts relevant domain terms from a corpus of text, relates them to appropriate concepts in a general-purpose ontology, and detects taxonomic and other semantic...
The OntoWordNet Project: extension and axiomatization of conceptual relations in WordNet (2003)
Aldo Gangemi, Roberto Navigli, Paola Velardi
Abstract. In this paper we firstly present a progress report of the OntoWordNet project, a research program aimed at achieving a formal specification of WordNet. Within this program, we developed a...
Axiomatizing wordnet glosses in the ontowordnet project (2003)
Aldo Gangemi, Roberto Navigli, Paola Velardi
Abstract. In this paper we present a progress report of the OntoWordNet project, a research program aimed at achieving a formal specification of WordNet. Within this program, we developed a hybrid...
Ontology Learning and its Application to Automated Terminology Translation (2003)
Roberto Navigli, Paola Velardi, La Sapienza
for automated ontology learning extracts relevant domain terms from a corpus of text, relates them to appropriate concepts in a general-purpose ontology, and detects taxonomic and other semantic...
The OntoWordNet Project: extension and axiomatization of conceptual relations in WordNet (2003)
Aldo Gangemi, Roberto Navigli, Paola Velardi
Abstract. In this paper we present a progress report of the OntoWordNet project, a research program aimed at achieving a formal specification of WordNet. Within this program, we developed a hybrid...
Integrated Approach to Web Ontology Learning and Engineering (2002)
Michele Missikoff, Roberto Navigli, Paola Velardi
The authors have built a software environment that supports the construction and assessment of a domain ontology for intelligent information integration within a virtual user community.
Semantic interpretation of terminological strings (2002)
Roberto Navigli, Paola Velardi
Terminology is the surface appearance of relevant domain concepts. Though many methods have been presented to extract from texts relevant domain terminology, a semantic interpretation of these terms...
The Usable Ontology: An Environment for Building and Assessing a Domain Ontology (2002)
Michele Missikoff, Roberto Navigli, Paola Velardi
Experience so ws t at t e quality o f t e sto red kno wledge determines t e success (t erefo re t e effective usage) o f an o nto lo gy. In fact, an o nto lo gy w ere relevant co ncepts are absent, o...
Identification of relevant terms to support the construction of Domain (2001)
Ontologies Paola Velardi, Paola Velardi, Michele Missikoff, Roberto Basili
Though the utility of domain Ontologies is now widely acknowledged in the IT (Information Technology) community, several barriers must be overcome before Ontologies become practical and useful tools....
A Study of Software Failures and Recovery in the MVS Operating System. (1998)
Velardi,Paola, Iyer,Ravishankar K.
This paper describes an analysis of system-detected software errors on the MVS operating system at the Center for Information Technology, at Standford University. The analysis determines the most...
An empirical approach to Lexical Tuning (1998)
Roberto Basili, Roberta Catizone, Maria Teresa Pazienza, Mark Stevenson, Paola Velardi, Michele Vindigni, ...
. NLP systems crucially depend on the knowledge structures devoted to describing and representing word senses. Although automatic Word Sense Disambiguation (WSD) is now an established task within...
Extraction of Content: Research at Near-Market (1997)
Mark Stevenson (she, Roberto Basili, G. De Rossi, Paola Velardi, Olivier Ansaldi, ...
This document describes the establishment of the base lexicons for the chosen domains. The base lexicon are derived from the corpora of the domains, using statistical data collected from the corpora....
Extracting Case relations from Corpora (1997)
Roberto Basili, Maria-teresa Pazienza, Paola Velardi, Roberta Catizone, Robin Collier, Mark Stevenson, ...
Description of a system for the automatic acquisition of verbal case frames from corpora. The key target is to acquire domain-specific relations rather than the standard relationships found in...
Integrating general-purpose and corpus-based verb classification (1996)
Roberto Basili, Maria Teresa Pazienza, Tor Vergata, Tor Vergata, Paola Velardi
A long-standing debate in the computational linguistic community is about the gen-erality of lexical taxonomies. Many linguists (Nirenburg 1995; Hirst 1995) stress that
Methods for Lexical Items Modification/Creation (1996)
The ECRAN Consortium (ECRAN), Yorick Wilks, Mark Stevenson, Rob Collier, Paola Velardi
Lexicon tuning is the process by which lexical entries in a general purpose lexicon are adapted to a given language domain. Lexicon tuning is performed by increasing-decreasing the expectation of the...
The noisy channel and the braying donkey (1994)
Roberto Basili, Maria Teresa Pazienza, Paola Velardi
The title of this paper playfully contrasts two rather different approaches to language analysis. The "Noisy Channel " 's are the promoters of statistically based approaches to...
Natural language processing will not be able to compete with traditional information retrieval unless high-coverage techniques are developed. It is commonly agreed that a poor encoding of the...
Extensive Acquisition of Syntactic Knowledge in NLP Systems (1991)
MAROTTA, GIORGIO, PAZIENZA, MARIA TERESA, PETTINELLI, FRANCO, VELARDI, PAOLA
Most NLP programs have failed to ‘scale-up’ because of the difficulty of developing large and robust lexical knowledge bases In our view, the development of tools for rapid prototyping and...
Computer aided interpretation of lexical cooccurrences (1989)
Paola Velardi, Mafia Teresa Pazienza
This paper addresses the problem of developing a large semantic lexicon for natural language processing. The increas~g availability of machine readable documents offers an opportunity to the field of...
Extensive Acquisition of Syntactic Knowledge in NLP Systems (1987)
MAROTTA, GIORGIO, PAZIENZA, MARIA TERESA, PETTINELLI, FRANCO, VELARDI, PAOLA
Most NLP programs have failed to ‘scale-up’ because of the difficulty of developing large and robust lexical knowledge bases. In our view, the development of tools for rapid prototyping and...