Cristòfol Rovira

Cristòfol Rovira
University Pompeu Fabra | UPF · Department of Communication

Licenciado en Ciencias de la Educación

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94
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January 1992 - November 2015
University Pompeu Fabra
Position
  • Professor

Publications

Publications (94)
Article
Presentación del número monográfico dedicado al periodismo y algoritmos. Se ofrece la visión panorámica de algunos de los problemas de investigación relacionados, como son los algoritmos que deciden la visibilidad de las noticias, los que afectan a los sistema de agregación y recomendación de noticias, y algunos aspectos del así llamado robot perio...
Article
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The visibility of academic articles or conference papers depends on their being easily found in academic search engines, above all in Google Scholar. To enhance this visibility, search engine optimization (SEO) has been applied in recent years to academic search engines in order to optimize documents and, thereby, ensure they are better ranked in s...
Article
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Existe una gran competencia entre los grupos mediáticos para la captación de audiencias en internet. Esto está motivando la aplicación de estrategias de posicionamiento en buscadores como un intento de ventaja competitiva. Además, los grupos mediáticos cuentan, por lo general, con una gran cantidad de sitios web cada uno de ellos con miles de págin...
Article
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During the last decades populism has become a mainstream ideology in Western democracies (Mudde, 2004; 2016). At the same time, the popularisation of digital platforms has facilitated the process of political communication while social networks have become one of the preferred communicative tools for political populists to spread their messages. Dr...
Article
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Search engine optimization (SEO) constitutes the set of methods designed to increase the visibility of, and the number of visits to, a web page by means of its ranking on the search engine results pages. Recently, SEO has also been applied to academic databases and search engines, in a trend that is in constant growth. This new approach, known as a...
Technical Report
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Análisis comparativo de visibilidad y otros indicadores SEO (search engine optimization) de los portales web de los principales canales de radio y televisión españoles: cadenaser.com, cope.es, ondacero.es, rac1.cat, telecinco.es, antena3.com, rtve.es, lasexta.com y cuatro.com. Los análisis se han llevado a cabo aplicando un conjunto de indicadores...
Article
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The aim of this article is to analyze the web positioning factors that can influence the order, by relevance, in Google Scholar and the subsequent evaluation of the importance of received citations in this ordering process. The methodology of reverse engineering was applied, in which a comparison was made between the Google Scholar ranking and anot...
Data
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Article
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In this paper, we will be carrying out an in-depth analysis of a series of investigations involving concept maps used in eye tracking methodology. Firstly, the background to this kind of research is analyzed: on the one hand we will focus on generic scientific literature about those concept maps with theoretical foundations in the psychology of lea...
Data
Español En este mapa conceptual se presentan los resultados de una revisión bibliográfica sobre las investigaciones publicadas hasta la fecha sobre mapas conceptuales aplicando la metodología del seguimiento de la mirada. Se estudian los antecedentes de este tipo de trabajos: por un lado la producción científica genérica sobre mapas conceptuales c...
Article
Purpose – Controlled vocabularies play an important role in information retrieval. Numerous studies have shown that conceptual searches based on vocabularies are more effective than keyword searches, at least in certain contexts. Consequently, new ways must be found to improve controlled vocabularies. The purpose of this paper is to present a semi-...
Article
Purpose – The purpose of this paper is to describe and evaluate the tool DigiDoc MetaEdit which allows the semi-automatic indexing of HTML documents. The tool works by identifying and suggesting keywords from a thesaurus according to the embedded information in HTML documents. This enables the parameterization of keyword assignment based on how fre...
Article
This article shows the research results on the exhibitions devoted to Salvat-Papasseit and Raimon at Arts Santa Mònica Creativity Centre, Barcelona. This article is part of a global research project on the presence of Catalonian museums in social media. The main goal of this research is to examine the dissemination and communication strategy used b...
Article
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The results of the 2013 analysis of visibility of the museum web sites of Catalonia are presented out of the data obtained by the explorer DigiDocSpider in Google. The main goal is to acquire the necessary data to deepen into the identification of good practices that help improve the visibility of any museum web site. The methodology has focused on...
Article
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Unlike most online advertising, Google opts for a purely textual model in the ads showed in its results pages. This paper presents an eye-tracking study conducted to determine if right-side graphic elements in Google AdWords affect users' visual behavior. AdWords have been modified to contain logos and pictures. The analysis concludes that the appe...
Article
This paper presents the results of a study of the news search engine Google News to determine the degree of importance users lend to headlines, sources and summaries as these appear in the lists of search results. By use of eye-tracking, researchers tallied the duration of the gaze of fifty users viewing search results displays to determine which o...
Article
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Se presentan los resultados de un estudio realizado en el buscador Google Noticias para determinar la importancia que le dan los usuarios a los elementos principales de una noticia que aparece en un listado de resultados: titular, fuente y resumen. Mediante la técnica de seguimiento ocular (eye-tracking) se analiza la duración de la mirada de 50 us...
Article
Tourism is a vital economic activity in many countries. Cities, regions, countries and destinations of all categories vie for securing tourists and to do so they employ communication and promotion channels such as official websites. Despite the importance of these websites, no comprehensive method of assessment exists to enable communications manag...
Article
The results of the 2013 analysis of visibility of the museum web sites of Catalonia are presented out of the data obtained by the explorer DigiDocSpider in Google. The main goal is to acquire the necessary data to deepen into the identification of good practices that help improve the visibility of any museum web site. The methodology has focused on...
Article
Full-text available
The article analyzes and describes rich snippets as a clear example of the real semantic web where metadata is being applied to improve the search engine results pages (serps). We describe the different types of Google rich snippets and explain how to implement people snippets due to their importance for the improvement of digital identity and thei...
Article
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In 2001, Bellido (2001: 231- 232) listed the advantages of museums' appearing on the Internet. For example, the ability to offer their information at anytime and place in the world, or the capacity for a museum to update its own contents without depending on graphic design companies (brochures, posters, etc.), along with the advantages of including...
Article
Objectives: This paper examines how users read concept maps and seeks to identify those parts of concept maps that users focus on most and the order in which maps are reviewed. Methodology: The study used eye-tracking methodology. Results: It was observed that when reading concept maps users paid most attention to second horizontal entry levels and...
Article
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The World Wide Web has become the primary instrument used by tourists in order to search for information. As a result, tourism websites pertaining to destinations need to be appealing and must convey their brand image in an appropriate, effective manner. However, there is no methodology in place to assess the quality and communicative effectiveness...
Article
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The article presents the results of an analysis of the visibility of all museums websites of Catalonia between 2006 and 2009. Based on data obtained from Yahoo Site Explorer, the study found that overall the number of links received, or backlinks, had increased by 326.28 %. As compared to a referenced group of websites, this represents a very impor...
Article
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We show the results of a study about the presence of multimedia content in the leading Spanish online newspapers, over a period of six months (October 2009 to March 2010) and describe the search and retrieval systems for these contents. The main conclusions are: unequal presence of photography, video and graphics; stability and no increase in multi...
Conference Paper
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This paper analyzes and evaluates, in the context of Ontology learning, some techniques to identify and extract candidate terms to classes of a taxonomy. Besides, this work points out some inconsistencies that may be occurring in the preprocessing of text corpus, and proposes techniques to obtain good terms candidate to classes of a taxonomy.
Article
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We present a research project whose main objective is the development of a tool that facilitates the assignment of keywords to web documents. We synthesize the main characteristics and features of the tool we are constructing and analyze its theoretical basis. This line of research is motivated by the current interest in semantic technologies as a...
Conference Paper
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Resum Català: La comunicació presenta els resultats d'una anàlisi de la visibilitat dels principals llocs web de museus de Catalunya, les seves causes i les possibles bones pràctiques per aconseguir valors alts en aquest indicador comparant-ne els resultats amb els principals museus d'Europa. S'ha estudiat l'evolució de la visibilitat dels llocs we...
Article
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Study of ranking in Google and Yahoo of big Spanish municipal corporation websites while searching by city tourist brand. Analysis of whether city tourist brands are promoting properly in the internet. Results of the daily ranking monitoring in Google and Yahoo are shown, for the searches made in 2009 by touristic brands of Spanish provincial capit...
Article
Full-text available
We present a research project whose main objective is the development of a tool that facilitates the assignment of keywords to web documents. We synthesize the main characteristics and features of the tool we are constructing and analyze its theoretical basis. This line of research is motivated by the current interest in semantic technologies as a...
Conference Paper
Full-text available
En un contexto de creciente competitividad y popularización del uso de la Web, los destinos deben contar con una presencia virtual adecuada, y ello pasa especialmente por el diseño y mantenimiento de un sitio web capaz de comunicar a los públicos diversos las fortalezas de la marca. Según la literatura académica reciente, se hace necesario trabajar...
Article
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En el artículo se propone MAIDHEA, una método para representar o modelar cualquier hipertexto para la enseñanza - aprendizaje. Este método de representación es el resultado de la experiencia en el desarrollo de los materiales didácticos para el Master Online en Documentación Digital <http://www.documentaciondigital.org>. En MAIDHEA se utiliza la no...
Article
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Analysis of the Science Research system in the context of e-science and the federated search, compared with the index-based retrieval systems and harvesting systems. Analysis of several elements of Science Research and a comparative study of search results.
Article
The communication presents results of an analysis of the visibility of the main museums websites of Catalonia, of his causes and of possible good practices to achieve high values in this indicator comparing results with websites of main museums of Europe. The evolution of the visibility has been studied of the website of the museums of Catalonia an...
Article
DIGIDOCMAP ES UN EDITOR FREEWARE Y OPEN SOURCE PA­RA LA CREACIÓN DE MAPAS CONCEPTUALES. ES EL PRIMER RESULTADO DE UN PROYECTO DE INVESTIGACIÓN ORIENTADO A LA GENERACIÓN DE HERRAMIENTAS PARA REPRESENTAR EL CONOCIMIENTO. SE HAN DESARROLLADO TRES VERSIONES DE ESTE EDITOR DESDE EL AÑO 2002. EN EL ARTÍCULO SE ANALIZAN LAS PRESTACIONES DE CADA UNA DE ELL...
Article
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A set of recommendations are presented that are intended to be useful for the externalization of a SEO service. The recommendations are articulated around four phases: (1) initial information acquisition, (2) information contrast, (3) hiring, (4) monitoring. The main characteristics of black hat SEO practices, or bad practices in SEO, are presented...
Conference Paper
This work briefly analyses the difficulties to adopt the Semantic Web, and in particular proposes systems to know the present level of migration to the different technologies that make up the Semantic Web. It focuses on the presentation and description of two tools, DigiDocSpider and DigiDocMetaEdit, designed with the aim of verifYing, evaluating,...
Article
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Presentation of the OpenOffice suite and the ODF format. The basic characteristics of OpenOffice and ODF format are presented. The need for the adoption of open-source software and open formats is discussed. Finally, an ODF case study of converting xhtml documents related to an e-learning course is presented.
Article
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Six topics related to search engines and web positioning such as: -- Structure and functions of a search engine -- The life cycle of a web campaign positioning -- Fundamentals of Marketing in search engines -- Technological monitoring and competitive intelligence for SEO-SEM -- Search engines and presentation of results in group -- Looking for maps...
Article
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DigiDocMap es un editor freeware y open source para la creación de mapas conceptuales. Es el primer resultado de un proyecto de investigación orientado a la generación de herramientas para representar el conocimiento. Se han desarrollado tres versiones de este editor desde el año 2002. En el artículo se analizan las prestaciones de cada una de ella...
Article
En l'article es presenten els principals resultats d'una investigació sobre la qualitat dels llocs web de televisions que emeten en català. S'ha estudiat el contingut, el disseny de navegació, la qualitat de la implementació i els factors que incideixen en el posicionament en cercadors. Es presenta una caracterització global del sector i 15 rànquin...
Article
Full-text available
This work presents the results of a study of web sites of 230 OA digital repositories in 16 European countries. The analysis addresses the extent to which these repositories fulfil display characteristics of quality sites, over and above the quality of their content. The objective of this study is to verify whether web sites specifically committed...
Article
This work presents the results of a studio of web sites of 230 OA digital repositories in 16 European countries. The analysis addresses the extent to which these repositories fulfil display characteristics of quality sites, over and above the quality, of their content. The objective of this study is to verify whether web sites specifically committe...
Article
DigiDocMap is freeware editor and open source for the creation of conceptual maps. It is the first product of a research project intended to generate tools for knowledge representation. Three versions of this editor have been created since 2002, The paper analyses each one of these and the reasons which motivated incorporation of the principal modi...
Article
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RESUM Uhipertext té algunes característiques que el fan especialment útil per a portar a terme proces-sos d'aprenentatge. Des d'una perspectiva constructivista, l'hipertext pot ser dissenyat per ajudar a obtenir la informació adequada al nivel! d'aprenentatges previs de l'usuari perquè ofereix Sa possi-bilitat d'una lectura no seqüencial de la info...
Article
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The lack of a well defined model of information representation on the web has produced several problems related to processing information. In an effort to resolve these problems, the W3C has proposed the semantic web project. This new scenario offers both possibilities and difficulties for the future. Special attention is given to ontologies, funda...
Article
En l&apos;article es presenten els principals resultats d&apos;una investigació sobre la qualitat dels llocs web de televisions que emeten en català. S&apos;ha estudiat el contingut, el disseny de navegació, la qualitat de la implementació i els factors que incideixen en el posicionament en cercadors. Es presenta una caracterització global del sect...
Article
A study about elements and information provided in parliamentary websites interfaces is presented. For this, the characteristics that must to be considered in the creation of these sites are indicated, taking into account the recommendations of the Interparliamentary Union and taking care of the own characteristics of this kind of institutions. Thu...
Article
En el artículo se presenta un análisis del fundamento del diseño de sistemas de navegación, revisando las aportaciones de algunos de los autores más citados en los campos de Arquitectura de la Información y la Usabilidad, a fin de presentar una síntesis del estado de la cuestión en este campo. En la segunda parte del artículo se presenta DigiDocMap...
Article
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This article presents the results obtained from a metadata study of 61 open access information science journals. The analysis shows that 34% do not use metadata and only 20% have specific metadata on the web page of each article.
Article
This article presents the results obtained from a metadata study of 61 open access information science journals. The analysis shows that 34% do not use metadata and only 20% have specific metadata on the web page of each article.
Article
Full-text available
A study about elements and information provided in parliamentary websites interfaces is presented. For this, the characteristics that must to be considered in the creation of these sites are indicated, taking into account the recommendations of the Interparliamentary Union and taking care of the own characteristics of this kind of institutions. Thu...
Article
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The article is an analysis of the fundamental principles of the design navigation system following some of the authors most mentioned in the fields of Information Architecture and Usability. In the second part one presents DigiDocMap, a tool of software design that facilitates the conception and implementation of advanced navigation system without...
Article
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Se presentan los resultados de un análisis comparativo sobre el posicionamiento web de una muestra de 150 blogs sobre usabilidad en inglés y otros tantos en español. Se concluye que existen diferencias en los valores de algunos factores que inciden en el valor del Page Rank aunque estas diferencias no provocan valores dispares en el promedio global...
Article
Full-text available
The semantic Web is a short and a long term project promoted by the most important regulatory organisation of the Web: the World Wide Web Consortium (W3C). The semantic Web project includes transformations that are affecting the creation, edition and publication of web pages and, the most important, will have an increasing importance in the future....
Article
La digitalització de continguts a Internet troba en els mapes conceptuals una nova via de navegació semàntica en format hipertextual complementària del tipus de navegació que ofereixen els mapes de navegació convencionals. Per mitjà d’Internet es poden aconseguir alguns editors de mapes conceptuals d’ús lliure (freeware) útils per crear arquitectur...
Article
Full-text available
La digitalització de continguts a Internet troba en els mapes conceptuals una nova via de navegació semàntica en format hipertextual complementària del tipus de navegació que ofereixen els mapes de navegació convencionals. Per mitjà d’Internet es poden aconseguir alguns editors de mapes conceptuals d’ús lliure (freeware) útils per crear arquitectur...
Article
La digitalització de continguts a Internet troba en els mapes conceptuals una nova via de navegació semàntica en format hipertextual complementària del tipus de navegació que ofereixen els mapes de navegació convencionals. Per mitjà d’Internet es poden aconseguir alguns editors de mapes conceptuals d’ús lliure (freeware) útils per crear arquitectur...
Article
Full-text available
This article is about the principal techniques for evaluating the usability of web sites, with particular emphasis on those that have greater relevance for public administration and the municipalities. In the case of expert evaluation indicated what criteria of usability can be measured in an automated way, particularly, the accessibility.
Article
: Relation between hypertexts, Web sites design and object oriented methods in the context of content representation. Is proposed a method, MAIDHEA, to represent and to model Web sites. The method is indicated for web sites with didactic contents and/or knowledge representation objectives. In MAIDHEA, the annotation of the diagrams of classes is ma...
Article
Full-text available
Relation between hypertexts, Web sites design and object oriented methods in the context of content representation. Is proposed a method, MAIDHEA, to represent and to model Web sites. The method is indicated for web sites with didactic contents and/or knowledge representation objectives. In MAIDHEA, the annotation of the diagrams of classes is made...
Article
Full-text available
This article is a synthesis of the main conclusions and the results obtained in the research made by Cristòfol Rovira (professor of documentation at the University Pompeu Fabra, Barcelona, Spain) in the occasion of their doctoral thesis on education online, documentation and hypertexts. The main result of the thesis is a methodology for designing h...
Article
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En l'article es proposa MAIDHEA, un mètode per modelar o representar qualsevol hipertext per a l'ensenyament-aprenentatge. Aquest mètode de representació és el resultat de l'experiència acumulada en el desenvolupament dels materials didàctics pel Màster Online en Documentació Digital. A MAIDHEA s'utilitza la notació dels diagrames de classes de la...
Article
Los documentos hipertextuales masivamente interconectados no siempre favorecen los procesos de enseñanza/aprendizaje; el tráfico de correo electrónico puede dificultar las funciones docentes y la necesidad de al menos cuatro figuras diferentes para la docencia a través de Internet, son algunas de las conclusiones que se han podido obtener de la seg...
Article
Full-text available
Los documentos hipertextuales masivamente interconectados no siempre favorecen los procesos de enseñanza/aprendizaje; el tráfico de correo electrónico puede dificultar las funciones docentes y la necesidad de al menos cuatro figuras diferentes para la docencia a través de Internet, son algunas de las conclusiones que se han podido obtener de la seg...
Article
Full-text available
Els problemes de desorientació que genera la navegació hipertextual es poden solucionar amb eines d'ajuda a la navegació eficients com, per exemple, sumaris, índexs o mapes de navegació que s'utilitzen en la web d'Internet aprofundint en aquelles que utilitzen la representació del coneixement per realitzar la seva funció. També proposen noves forme...
Article
Full-text available
The problem of disorientation brought about by hypertext navigation can be solved by efficient tools to aid navigation such as summaries, indexes or navigation maps. In the article we analyse the main tools to aid navigation used in the Internet web, going futher into those which use knowledge representation to carry out their faction. We propose n...
Article
L'article mostra les noves oportunitats que la Web d'Internet ha generat en el camp de la creació de documents hipertextuals. A partir de la grandària dels nodes, s'analitzen les característiques essencials del hipertextos d'abans de l'aparició de la Web per comparar-les amb les pàgines d'Internet. També es comenten les avantatges educatives que po...
Article
En este artículo se presentan algunos resultados de una investigación realizada para desarrollar una metodología de diseño de hipertextos útiles en la enseñanza y el aprendizaje. Se adapta el modelado orientado a objetos utilizado por la ingeniería del software al diseño de hiperdocumentos y se muestra un ejemplo de modelado orientado a objetos apl...
Article
Ponencia presentada en el II Coloquio Internacional E-DOCPA 2008, celebrado en Oviedo los días 11, 12 y 13 de junio de 2008.
Article
The interest for the graphic representation of ideas or concepts has become of great interest thanks to the Web development. The navigation maps show the web site page structure and allow guiding the browsing by means of this "physical" structure, but they are unable to represent the conceptual structure of the contents of those pages. To provide g...
Article
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Title: Introduction to designing with web standards and open source software: Tutorial of XHTML, CSS and NVU. Tutorial on the web design with standards: XHTML and CSS. Basic concepts about the source code of the web pages and their creation by means of XHTML Transitional and style sheets (CSS). Edition of web pages with the WYSIWYG and open source...
Article
Study on the visibility of the Web sites of Museum of Catalonia
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Los problemas de desorientación que genera la navegación hipertextual se pueden solucionar con herramientas de ayuda a la navegación eficientes, como sumarios, índices o mapas de navegación. Se analizan las principales herramientas de ayuda a la navegación empleadas en Internet, profundizando en aquéllas que utilizan la representación del conocimie...
Article
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En este artículo se presenta un proyecto de investigación que tiene como principal objetivo el desarrollo y la exploración del potencial de una herramienta que facilite la asignación semi automática de palabras clave a documentos web. Se describen de forma sintética las principales características y prestaciones de la herramienta que se está constr...

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