An overview of the Applications of Natural Language to Information Systems

This introduction provides an overview of the state-of-the-art technology in Applications of Natural Language to Information Systems. Specifically, we analyze the need for such technologies to successfully address the new challenges of modern information systems, in which the exploitation of the Web as a main data source on business systems becomes a key requirement. It will also discuss the reasons why Human Language Technologies themselves have shifted their focus onto new areas of interest very directly linked to the development of technology for the treatment and understanding of Web 2.0. These new technologies are expected to be future interfaces for the new information systems to come. Moreover, we will review current topics of interest to this research community, and will present the selection of manuscripts that have been chosen by the program committee of the NLDB 2011 conference as representative cornerstone research works, especially highlighting their contribution to the advancement of such technologies.

A general proposal to multilingual information access based on syntactic-semantic patterns

In the last few years, there has been a wide development in the research on textual information systems. The goal is to improve these systems in order to allow an easy localization, treatment and access to the information stored in digital format (Digital Databases, Documental Databases, and so on). There are lots of applications focused on information access (for example, Web-search systems like Google or Altavista). However, these applications have problems when they must access to cross-language information, or when they need to show information in a language different from the one of the query. This paper explores the use of syntactic-sematic patterns as a method to access to multilingual information, and revise, in the case of Information Retrieval, where it is possible and useful to employ patterns when it comes to the multilingual and interactive aspects. On the one hand, the multilingual aspects that are going to be studied are the ones related to the access to documents in different languages from the one of the query, as well as the automatic translation of the document, i.e. a machine translation system based on patterns. On the other hand, this paper is going to go deep into the interactive aspects related to the reformulation of a query based on the syntactic-semantic pattern of the request.

Evaluating knowledge-based approaches to the multilingual extension of a temporal expression normalizer

The extension to new languages is a well known bottleneck for rule-based systems. Considerable human effort, which typically consists in re-writing from scratch huge amounts of rules, is in fact required to transfer the knowledge available to the system from one language to a new one. Provided sufficient annotated data, machine learning algorithms allow to minimize the costs of such knowledge transfer but, up to date, proved to be ineffective for some specific tasks. Among these, the recognition and normalization of temporal expressions still remains out of their reach. Focusing on this task, and still adhering to the rule-based framework, this paper presents a bunch of experiments on the automatic porting to Italian of a system originally developed for Spanish. Different automatic rule translation strategies are evaluated and discussed, providing a comprehensive overview of the challenge.

Evaluating EmotiBlog robustness for sentiment analysis tasks

EmotiBlog is a corpus labelled with the homonymous annotation schema designed for detecting subjectivity in the new textual genres. Preliminary research demonstrated its relevance as a Machine Learning resource to detect opinionated data. In this paper we compare EmotiBlog with the JRC corpus in order to check the EmotiBlog robustness of annotation. For this research we concentrate on its coarse-grained labels. We carry out a deep ML experimentation also with the inclusion of lexical resources. The results obtained show a similarity with the ones obtained with the JRC demonstrating the EmotiBlog validity as a resource for the SA task.

Una nueva técnica de construcción de grafos semánticos para la desambiguación bilingüe del sentido de las palabras

En este trabajo presentamos unos resultados preliminares obtenidos mediante la aplicación de una nueva técnica de construcción de grafos semánticos a la tarea de desambiguación del sentido de las palabras en un entorno multilingüe. Gracias al uso de esta técnica no supervisada, inducimos los sentidos asociados a las traducciones de la palabra ambigua considerada en la lengua destino. Utilizamos las traducciones de las palabras del contexto de la palabra ambigua en la lengua origen para seleccionar el sentido más probable de la traducción. El sistema ha sido evaluado sobre la colección de datos de una tarea de desambiguación multilingüe que se propuso en la competición SemEval-2010, consiguiendo superar los resultados de todos los sistemas no supervisados que participaron en aquella tarea.

Maria-Antònia Oliver o el plaer de narrar en femení

Maria-Antònia Oliver és una figura cabdal en la història de la novel·la policíaca en llengua catalana. Amb un personatge principal innovador en el panorama literari català dels anys vuitanta, Oliver destaca per una sèrie d’aspectes com són el seu personatge principal, feminista i representant del hard-boiled i la forta crítica social, especialment centrada en l’illa de Mallorca, aspectes que són objecte d’estudi en aquest article. Temes com el feminisme, l’impacte social del turisme o la situació de la llengua catalana a les Balears formen part de les seves obres i demostren el compromís social de l’autora mallorquina.

Una clave humanista de mediados del siglo XV para el Humanismo de la Corona de Aragón desde fines del siglo XIV: Ferran Valentí y el Prólogo a su traducción de las Paradoxa de Cicerón

In this article I study the Preface by Ferran Valentí to his own translation into Catalan of Cicero’s Paradoxa. Ferran Valentí was a humanist from Majorca, author in Catalan language who earned a Low Degree at the University of Bologna and who declared himself a devoted “son and pupil” of humanist Leonardo Bruni. Valentí made an analysis of the humanistic Canon in mid-15th century, including troubadours, Dante, Lullius, Latin literature classics and several Catalan authors, such as Bernat Metge. This proves that humanism was a true trend in the Crown of Aragon from the 2nd half of the 14th Century on.

Com Sona l’ESO: un exemple del tractament de la llengua i la literatura des de l’àrea de música dins del concepte d’ensenyament integral

Com Sona l'ESO és un projecte en què s’integren música i dansa, literatura, llengua i educació amb una doble finalitat: traure fora de les quatre parets de l’aula el treball que es fa dia a dia amb l’alumnat i oferir-los l’oportunitat d’actuar en directe damunt d’un escenari. En aquest article es descriu el treball dins i fora de l’aula que culmina en aquest espectacle durant 16 edicions està recorrent diferents poblacions i centres del territori lingüístic i es posa en valor el caràcter multidisciplinari, la implicació social, el protagonisme de l’alumnat i l’èxit d’un treball que esdevé plenament aprenentatge significatiu.