Rafael Berlanga

ArHeX: Flexible Composition of Indexes and Similarity Measures for XML (2009)

Ismael Sanz, Rafael Berlanga

This work-in-progress paper describes the features of the ArHeX similarity-oriented XML processing toolkit [12]. ArHeX is designed to assist in the engineering of XML similarity-oriented...

Safe and Economic Re-Use of Ontologies: A Logic-Based Methodology and Tool Support (2008)

Ernesto Jiménez-ruiz, Bernardo Cuenca Grau, Ulrike Sattler, Thomas Schneider, Rafael Berlanga

Abstract Driven by application requirements and using well-understood theoretical results, we describe a novel methodology and a tool for modular ontology design. We support the user in the safe use...

Assessment of disease named entity recognition on a corpus of annotated sentences (2008)

Jimeno, Antonio, Jimenez-Ruiz, Ernesto, Lee, Vivian, Gaudan, Sylvain, Berlanga, Rafael, Rebholz-Schuhmann, Dietrich

Abstract Background In recent years, the recognition of semantic types from the biomedical scientific literature has been focused on named entities like protein and gene names (PGNs) and gene...

Text Mining using the hierarchical syntactical structure of documents (2008)

Roxana Danger, José Ruíz-shulcloper, Rafael Berlanga

Abstract. One of the most important tasks for determining association rules consists of calculating all the maximal frequent itemsets. Specifically, some methods to obtain these itemsets have been...

An Ontology-Driven Architecture for Re-using Semantic Web Services (2008)

Carlos Granell, Dolores María Llidó, Rafael Berlanga, Michael Gould

Abstract. As more semantic web services become on the Internet, it is feasible that users collaborate among them to save efforts in complex web solutions by sharing and reusing existing semantic web...

Techniques and Tools for the Temporal Analysis of Retrieved Information (2008)

Rafael Berlanga, Juan Pérez, María José Aramburu, Dolores Llidó

Abstract. In this paper we present a set of visual interfaces to query newspapers databases with conditions on their contents, structure and temporal properties. Query results are presented in...

and Economic Re-Use of Ontologies: A Logic-Based Methodology and Tool Support. European Semantic Web Conference (ESWC (2008)

Ernesto Jiménez-ruiz, Bernardo Cuenca Grau, Ulrike Sattler, Thomas Schneider, Rafael Berlanga

Ontology design and maintenance require an expertise in both the domain of application and the ontology language. Realistic ontologies typically model different aspects of an application domain at...

Title Integrating Data Warehouses with Web Data: A Survey (2006)

Juan Manuel Pérez, Rafael Berlanga, María José Aramburu, Torben Bach Pedersen, Copyright Juan, Manuel Pérez, ...

For additional information, see the DB TECH REPORTS homepage: 〈www.cs.aau.dk/DBTR〉. Any software made available via DB TECH REPORTS is provided “as is ” and without any express or implied...

Efficient Retrieval of Structured Documents from Object-Relational Databases (1999)

Campus Riu Sec, Rafael Berlanga, Rafael Berlanga, María José Aramburu, Mara Jos Aramburu, Salvador García, ...

: This paper proposes a new and efficient method to represent, store and retrieve structured documents from object-relational databases. Its main contribution consists of a codification scheme for...

Gathering Metadata from Web-Based Repositories of Historical Publications (1998)

Ismael Sanz, Rafael Berlanga, Maria Jose Aramburu

Building digital libraries from Internet-accessible document repositories is a challenging task, due to the current mismatch between the desired DBMS-like capabilities of the former and the...

Gathering Metadata from Web-Based Repositories of Historical Publications (1998)

Ismael Sanz Rafael, Rafael Berlanga, Mara Jos Aramburu

In this paper we examine the problem of extracting schema-conforming metadata out from HTML sources. A technique founded on semistructured data analysis is explained. It is based on the combination...

Automatic Acquisition Of Digitized Newspapers Via Internet (1997)

Ismael Sanz, Rafael Berlanga, María José Aramburu, Francisco Toledo

After our previous works on modelling a database of newspapers and designing a specially suited retrieval language, we are now developing an application to automatically acquire, summarize and store...