Isidro F. Aguillo

• HcDr
• Head of Department at Spanish National Research Council

Google Scholar, the academic bibliographic database provided free-of-charge by the search engine giant Google, has been suggested as an alternative or complementary resource to the commercial citation databases like Web of Knowledge (ISI/Thomson) or Scopus (Elsevier). In order to check the usefulness of this database for bibliometric analysis, and...

Se ha realizado un análisis cibermétrico sobre las universidades iberoamericanas a partir de indicadores que describen su presencia en la web. El objetivo perseguido era demostrar tanto la idoneidad de estos indicadores en la evaluación de la actividad científica como ilustrar los patrones específicos del uso de la web para la comunicación científi...

La iniciativa CoARA ha generado un gran interés en la comunidad investigadora por su previsible impacto en los procesos de evaluación de su actividad. Aunque todavía está en una fase preliminar ya se pueden realizar algunos comentarios sobre los aspectos básicos de la propuesta. Los cambios incluyen un menor peso de indicadores tradicionales como l...

This study analyses the coverage of seven free‐access bibliographic databases (Crossref, Dimensions—non‐subscription version, Google Scholar, Lens, Microsoft Academic, Scilit, and Semantic Scholar) to identify the potential reasons that might cause the exclusion of scholarly documents and how they could influence coverage. To do this, 116 k randoml...

There is a strong movement for radical reform of the scientific evaluation processes in accordance with the principles of the open science initiative. To support the new system, one or several open platforms specifically designed for evaluation purposes is badly needed. A brief critical evaluation of some of the services currently used or available...

A call to apply a more sophisticated, professional bibliometrics based on technical and scientific quality metrics that overcomes the current easy though incorrect practices in the evaluation processes of scientific activity. Resumen: Una llamada a aplicar una bibliometría más sofisticada, profesional, con métricas de calidad técnica y científica q...

The Majestic’s Trust Flow (TF) is a link-based score aimed at measuring the influence of online objects (e.g. scientific publications) by considering the weighted number of links received from trusted websites. This study describes the bibliographic characteristics and impact of those publications with the highest TF score. In order to do this, 20,...

The current value of link counts as supplementary measures of the formal quality and impact of journals is analyzed, considering an open access megapublisher (MDPI) as a case study. We analyzed 352 journals through 21 citation-based and link-based journal-level indicators, using Scopus (523,935 publications) and Majestic (567,900 links) as data sou...

Dos de las principales agencias gubernamentales (FECYT y ANECA), claves del sistema español de ciencia y tecnología, desarrollan actividades y generan productos que están soportados por mala ciencia. Se analizan el caso del ranking de revistas FECYT, cuyo indicador compuesto es matemáticamente aberrante, y el informe de editoriales de acceso abiert...

There is growing concern about the possible predatory nature of the MDPI editorial journals. The author identifies the practices of this publisher as pyramidal commercial techniques, which should be rejected in the field of scienti­fic communication as they affect the selection and acceptance criteria of original works and generate a proliferation...

This umpteenth statement, although doubtlessly brilliant, arrives late and badly, since it not only insists on a strategy that has not worked but also avoids building the consensus that is necessary in the Spanish-speaking bibliometric community, a community that may not be mustered in this way to the extent that it remains far from a unanimous pos...

Top-level domains, in addition to fulfilling the technical function of enabling access to network resources, allow information professionals in general, and content managers in particular, to work with domain names for branding and search engine optimization (SEO) purposes. Likewise, they facilitate the performance of metric analyses thanks to thei...

Se analiza la producción de la Universidad española en el campo de la Química, en el período 1990-91, utilizando Chemical Abstracts como base de datos internacional e ICYT como base de datos nacional, que recoge exhaustivamente todo lo publicado en revistas españolas. La comparación entre ambas series de datos permite deducir tendencias de publicac...

Self-archiving in Institutional Repositories (IRs) is playing a central role in the success of the Open Access initiatives. Deposited documents are more visible and probably they get more downloads and citations, but making them freely available in a local repository is not enough. Social tools, both public and academic targeting, networking or sil...

En el momento actual existe una gran variedad de plataformas de información científica, entendiendo como tal toda base de datos que contiene documentos producto de la actividad científica e investigadora e información acerca de los propios investigadores/as. En este documento se presentan una gran variedad de ellas, desde las que ya tienen una larg...

Material didáctico utilizado en el curso "Directorios, Clasificaciones y Rankings de Revistas Científicas" organizado por el Gabinete de Formación del CSIC del 23 y 25 de octubre de 2018, donde Se describen los principales directorios, clasificaciones y rankings españoles e internacionales de revistas científicas (JCR, SJR, GSM, MIAR and CIRC). Exi...

[EN] The content and main functionalities of the open access repositories, the academic search engines and the most relevant scientific social networks are described, as well as the new scientific evaluation metrics that have their origin in these platforms and in other tools of the social web [ES] Se describe el contenido y las principales funcion...

Se presentan las características de las principales fuentes de información científica de acceso gratuito existentes en Internet: repositorios de revistas, institucionales y temáticos de acceso abierto, redes sociales académicas (Researchgate, Academia,edu) y Google Scholar.

Este trabajo pretende contextualizar los resultados obtenidos de la clasificación de investigadores que trabajan en instituciones colombianas de acuerdo a sus perfiles públicos de citas de Google Scholar - GSC (1390 con un índice h igual o superior a 5). Para este propósito, se comparan los resultados con los datos obtenidos de la colección de auto...

The aim of this study is to contextualize the results obtained regarding the classification of researchers who work in Colombian institutions according to their public Google Scholar - GSC citation profiles (1390 with an H index equal or higher than 5). To this end, the study compares its findings with the data obtained from the collection of Colom...

Por una parte se presenta el contenido y las funcionalidades del motor de búsqueda académico Google Scholar y de la red social de carácter académico ResearchGate , grandes contenedores ambos de información científica de gran aceptación dentro de la comunidad académico-científica. Por otra parte se presentan las denominadas “almétricas”, denominació...

Se describe el contenido y funcionamiento (acceso, archivo, consultas, descargas, métricas, etc…) de Google Scholar y ResearchGate, plataformas de información científica más utilizadas en la actualidad. Ambas contienen perfiles de investigadores de todas las especialidades científicas con métricas de producción científica y acceso a gran cantidad d...

Se analizan y evalúan mediante descriptores formales e indicadores cuantitativos las revistas universitarias españolas, que se publican en formato exclusivamente electrónico. Se estudia el impacto y la visibilidad de estas publicaciones en la red. Se han estudiado tanto el número de publicaciones, como sus características formales y de contenido y...

The expected disappearance of the physical library at the academy is motivating librarians to assume new roles and develop new services, such as CRAI (resource center for learning and research), or information commons. CRAIs seek to overcome wishful thinking and lack of training with protocols and quality products such as CRIS, tools for the evalua...

This bibliometric study analyzes the research output produced by Spain during the 2005-2014 time period in Open Access (OA) journals indexed in Web of Science. The aim of the paper is to determine if papers published in Open Access journals contribute to the improvement of citation impact and collaboration indicators in Spanish research. The result...

Librarians are playing a secondary role in the process of evaluating research activities, usually as auxiliary providers of raw data extracted from pre-selected sources. Given the subjective nature of the decision committees, there is a strong need for unbiased and objective procedures guaranteed by independent professionals. A neutral, comprehensi...

Este libro presenta una visión general de cómo la web, y especialmente la web social, ha transformado los sistemas de comunicación y evaluación científica. Se destacan dos elementos clave en esta transformación: las plataformas web sociales, como nuevos medios de promoción y difusión de la investigación, y la altmetría o altmetrics, referida al uso...

Se describen las características de la revistas científicas, así como las principales herramientas internacionales de evaluación de las mismas: Journal Citation Report (JCR), Scimago Journal Rank (SJR) y Google Scholar Citation. Este documento presenta el material didáctico utilizado en el curso "Revistas Científicas: Cómo y dónde publicar" organi...

La Declaracion de San Francisco ( DORA ) no solo critica el uso abusivo del factor de impacto de Garfield como herramienta para la evaluacion de la actividad cientifica, sino que cuestiona de forma implicita el analisis de citas en particular y la practica bibliometrica en general. Se reivindica el trabajo de la comunidad bibliometrica profesional,...

Academics can now use the web and the social websites to disseminate scholarly information in a variety of different ways. Although some scholars have taken advantage of these new online opportunities, it is not clear how widespread their uptake is or how much impact they can have. This study assesses the extent to which successful scientists have...

The aim of this paper is to empirically test whether interlinking patterns between higher education institutions (HEIs) conform to a document model, where links are motivated by webpage content, or a social relationship model, where they are markers of underlying social relationships between HEIs. To this aim, we analyzed a sample of approximately...

This paper aims to make a comparative analysis between the personal profiling capabilities of the two most important free citation-based academic search engines, namely Microsoft Academic Search (MAS) and Google Scholar Citations (GSC). Author profiles can be very useful for evaluation purposes once the advantages and the shortcomings of these serv...

As happens every two years in the month of April, the International Seminar on the Quantitative and Qualitative Study of Science and Technology "Professor Gilberto Sotolongo Aguilar" now in its seventh edition, was held at the Palacio de Convenciones in Havana, Cuba. The Seminar began on April 15 th with the inauguration of the poster session and c...

Purpose – This study aims to explore the link creating behaviour of European highly cited scientists based upon their online lists of publications and their institutional personal websites. Design/methodology/approach – A total of 1,525 highly cited scientists working at European institutions were first identified. Outlinks from their online lists...

This paper describes the results of a multi-level network analysis of web-citations among the 1,000 universities with the greatest presence on the world wide web. Using data from January 2011, it describes the web-citation network of the world’s universities and ascertains the antecedent factors that determine its structure. At the university level...

The lack of an integrated information policy for scientific activity evaluation has led to a wide range of information products and services that are used for such purposes, although they were not originally designed for that. While it is true that these tools have limitations and deficiencies, and in several cases are technologically and methodolo...

The lack of an integrated information policy for scientific activity evaluation has led to a wide range of information products and services that are used for such purposes, although they were not originally designed for that. While it is true that these tools have limitations and deficiencies, and in several cases are technologically and methodolo...

Purpose – The purpose of this paper is to detect whether both file type (a set of rich and web files) and language (English, Spanish, German, French and Italian) influence the web visibility of European universities. Design/methodology/approach – A webometrics analysis of the top 200 European universities (as ranked in the Ranking web of World Uni...

Purpose – Title and URL mentions have recently been proposed as web visibility indicators instead of inlink counts. The objective of this study is to determine the accuracy of these alternative web mention indicators in the Spanish academic system, taking into account their complexity (multi-domains) and diversity (different official languages). D...

La Cibermetría proporciona un conjunto de conocimientos y técnicas que permiten recopilar y analizar el espacio red con el objetivo de obtener información relativa a los contenidos, recursos, infraestructuras y usuarios en Red en diversos ámbitos de actividad, con el propósito de conocer, describir y predecir patrones de uso y consumo de informació...

Se presentan las agencias evaluadoras españolas de ámbito nacional (ANEP, CNEAI y ANECA) y los principales indicadores bibliométricos utilizados en evaluación de la ciencia. Igualmente se describen el Journal Citation Report (JCR) integrante del Web of Science y el Scimago Journal and Country Rank (SJR) elaborado a partir de la base de datos Scopus...

The objective of this work is to identify if an influential group of researchers, highly cited scientists working at European institutions, have different types of web presences: personal websites and research group websites as well as profiles in Google Scholar, Microsoft Academic Search (MAS), Mendeley, Academia.edu and LinkedIn.

The web is not only the main scholarly communication tool but also an important source of additional information about the individual researchers, their scientific and academic activities and their formally and informally published results. The aim of this study is to investigate whether successful scientists use their personal websites to dissemin...

The purpose of this paper is to analyse and describe the topological properties of the institutional and national collaboration network from the profiles extracted from Google Scholar Citations (GSC). 19,912 unique profiles with "co-authors" were obtained from a web crawl performed in March 2012. Several statistical and network analysis techniques...

Not available.Se presenta un estudio sobre la presencia de los organismos de Investigación y Desarrollo adscritos al sistema público de financiación, así como de las sociedades científicas. Se analiza además la situación de revistas electrónicas visibles en Internet editadas por estas instituciones. En ambos casos se ofrece también una valoración g...

Purpose The aim of this paper is to present network visualisation as a way to analyse and to test the design of a website. Design/methodology/approach A network graph of the access to the webometrics.info site from its web logs was analysed. Several graphs (navigational and query graphs) with different added variables were explored. SNA indicators...

The purpose of this paper is to discuss the new developments in the methodology used for building the Ranking Web of Universities, also called the Webometrics Ranking (WebR) . Contrary to other rankings that ignore caveats and shortcomings in order to maintain inter-year stability, the WebR ranking is evolving for improving the reliability of sourc...

This paper introduces a keyword map of the labels used by the scientists registered in the Google Scholar Citations (GSC) database from December 2011. In all, 15,000 random queries were formulated to GSC to obtain a list of 26,682 registered users. From this list a network graph of 6,660 labels was built and classified according to the Scopus Subje...

This study combines Web usage mining, Web link analysis, and bibliometric methods for analyzing research activities in research organizations. It uses visits to the Expert Protein Analysis System (ExPASy) server—a virtual research infrastructure for bioinformatics—as a proxy for measuring bioinformatic research activity. The study finds that in the...

The publication in 2003 of the Ranking of Universities by Jiao Tong University of Shanghai has revolutionized not only academic studies on Higher Education, but has also had an important impact on the national policies and the individual strategies of the sector. The work gathers the main characteristics of this and other global university rankings...

The success of information professionals in the coming years will depend on their commitment to research and development in the areas of identification, access, retrieval, storage, description and assessment of the vast amount of resources available. This research effort should be coordinated with computer scientists, not to seek their cooperation...

This chapter introduces Webometrics as an emerging discipline focused on the understanding and assessment of the flow of Web based academic information. It describes the principal web-based techniques and tools used to evaluate the performance of higher education websites and to explain how these information networks are created and modelled. The c...

This paper aims to analyse the collaboration network of the 6th Framework Programme of the EU, specifically the “Life sciences, genomics and biotechnology for health” thematic area. A collaboration network of 2,132 participant organizations was built and several variables were added to improve the visualization such as type of organization and nati...

Recently there is increasing interest in university rankings. Annual rankings of world universities are published by QS for the Times Higher Education Supplement, the Shanghai Jiao Tong University, the Higher Education and Accreditation Council of Taiwan and rankings based on Web visibility by the Cybermetrics Lab at CSIC. In this paper we compare...

This paper aims to explore the role of each country in the health thematic area of the 6th Framework Programme (6FP) of the EU. We try to explain how the collaborative research processes are generated in a research programme using social network analysis (SNA) tools. We have modelled a one-mode network set up by 2,132 organizations which participat...

The objective of this work is to describe the distribution of different types of participating organizations in the health thematic area of the 6th Framework Programme. A total of 2132 different organizations were classified according to four types and then grouped by country. A Principal Component Analysis (PCA) was carried out on the percentage o...

The aim of this paper is to characterize the distribution of number of hits and spent time by web session. It also expects to find if there are significant differences between the length and the duration of a session with regard to the point of access–search engine, link or root. Web usage mining was used to analyse 17,174 web sessions that were id...

The aim of this work is to describe the participation of Spanish institutions in the 6th Framework Programme’s thematic area on health. It presents a structural analysis of the collaboration network among the different organizations that participate in these projects, as well as a description of the degree of participation and of the results obtain...

The Ranking Web of World Repositories (http://repositories.webometrics.info) is introduced. The objective is to promote Open access initiatives (OAI) supporting the use of repositories for scientific evaluation purposes. A set of metrics based on web presence, impact and usage is discussed. The Ranking is built on indicators obtained from web searc...

The objective of this study is to show three different aspects of the scientific and technological reality of Iberoamerican countries: their scientific production, in terms of scientific publications; their technological production, in terms of international patent applications; and the presence of their universities and public research centres on...

The European Commission sent at the end of the Eighties, a special program called IMPACT ("Information Market Policy ACTions"), whose mission was to promote the use of the electronic services of information in all the Community and that since then has not only helped the implantation of a solid European industry of the information, increased and po...

Purpose: Our purpose is to provide an alternative, although complementary, system for the evaluation of the scholarly activities of academic organizations, scholars and researchers, based on web indicators, in order to speed up the change of paradigm in scholarly communication towards a new fully electronic 21st century model. Design/methodology/ap...

The aim of this paper is to model and study the age of the Web using a sample of about four million of web pages from the 16 European Research Area countries obtained during 2004 and 2005. Web page time-stamp (date when the web pages were created or last changed for last time), format and size in bytes data have been analysed. Several indicators ar...

This work provides a visual display of the domain network the most important Iberoamerican universities. The topological characteristics of this network are described, and the web relationships among the universities of different countries and continents are examined. The top 350 institutions of higher education of Iberoamerica were selected from t...

This work analyses how Spanish university scholars are adopting the use of the Internet, focusing on the Universidad Complutense de Madrid. The web visibility of the works published by the university’s scholars was examined, and a comparison made of the observed gender pattern with that apparent in bibliometric studies. The publications of 289 of t...

A visual display of the most important universities in the world is the aim of this paper. It shows the topological characteristics and describes the web relationships among universities of different countries and continents. The first 1000 higher education institutions from the Ranking Web of World Universities were selected and their link relatio...

10 pages, 5 figures, 9 tables.-- PMID: 19211075 [PubMed].-- Printed version published on Feb 7, 2009. More information on the Ranking of World Hospitals available at: http://hospitals.webometrics.info/ [ES] Para muchas instituciones sociales, entre las que se encuentran los hospitales, la Web se ha convertido en una interesante herramienta de traba...

The analysis of web usage information is an important cybermetric tool for describing the visits and visitors to a website, and their navigation behaviour, which can help in designing the structure and contents of the webpages. The paper describes the main concepts (log file, session, user) and introduces both manual and automated techniques to stu...

Las técnicas cibermétricas se han extendido considerablemente en los últimos años, pero aún faltan estudios en detalle sobre los problemas que plantean dichas técnicas y las posibles soluciones a los mismos. Esta revisión metodológica se centra en la aplicación de la Cibermetria a la obtención de indicadores Web, especialmente aquellos que son útil...

Análisis estructural de una red social en línea: la red española de Flickr El profesional de la información, v.17, n. 6, noviembre-diciembre 2008 Análisis estructural de una red social en línea: la red española de Flickr Por José-Luis Ortega e Isidro-F. Aguillo Resumen: El presente trabajo analiza desde un punto de vista estructural la red de miemb...

The aim of this paper is to study the link relationships in the Nordic academic web space – comprised of 23 Finnish, 11 Danish and 28 Swedish academic web domains with the European one. Through social networks analysis we intend to detect sub-networks within the Nordic network, the position and role of the different university web domains and to un...

Today the worldwide web (web) is one of the main sources of information and the main showcase for everyone (institutions, business enterprises, individuals, etc.) who wants to be recognized on in the 'real world'. At the academic level, universities have a very important role as a means to communicate scientific and cultural achievements. Web publi...

This communication tries to analyse and visual-ize the German academic web space. It intends to show the structural characteristic of the net-work, showing groups and detecting the highest degree universities. Its relationships with the remaining European countries are also de-scribed. A network graph was built from the link relationship among 110...

This national-level study intends to describe the existing relationships between the number of web pages, inlinks to and outlinks from Europe and national or internal links in the European Higher Education Area through a sample of 535 European universities web domains. Several geographical maps are introduced to summarize and visualize this statist...

This paper shows maps of the web presence of the European Higher Education Area (EHEA) on the level of universities using hyperlinks and analyses the topology of the European academic network. Its purpose is to combine methods from Social Network Analysis (SNA) and cybermetric techniques in order to ask for tendencies of integration of the European...

Aunque la Web es utilizada de forma generalizada para acceder a información y su uso como fuente de referencia es cada vez más habitual, en numerosos medios se critica de manera desproporcionada la fiabilidad de la información, lo que afecta a la percepción general de la calidad de sus contenidos. Reconociendo las limitaciones de este medio, se def...

Se pretende representar visualmente la situación de la web académica española y su relación con el contexto del espacio web universitario europeo, con la finalidad de conocer su topología, sus universidades más destacadas y su posición respecto al resto de espacios web europeos. Para ello se han utilizado mapas de co-enlaces y grafos que han permit...

Spain's academic web space is diagrammed, together with its relationship with the European Higher Education Area (EHEA), with the goal of determining the topology, the outstanding universities, and our standing with respect to other European web spaces. Several co-link maps and network graphs visually represent these relationships among universitie...

Resumen. Utilizando los datos cibermétricos de las 500 primeras universidades latinoamericanas de acuerdo a indicadores Web obtenidos mediante motores de búsqueda, se analiza la comunicación de sus actividades científicas y aca-démicas a través de Internet. Se presta especial atención al uso de los llama-dos ficheros ricos, normalmente asociados a...

The top 500 Latin American universities according to Webindicators derived from search engines were selected in order to obtainwebometric data for the analysis of their commitment to the publication oftheir scientific effort in the Net. The target of the study were the rich files,a format usually devoted to documents intended to be used as scientif...

Los avances tecnológicos han permitido que en el momento actual existan abundantes fuentes de información sobre cualquier tema que deseemos conocer. Sin embargo, no es fácil realizar un cribado eficiente de los datos que pudiéramos conseguir para obtener una información de calidad que disponga de la garantía adecuada. Este problema reviste aún más...

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The aim of this work is to describe the interdisplinary research relationships among several Spanish university departments and research groups located in the Spanish web space. 699 web sites from 2390 were selected according to whether a web site receives or links to at least one of the rest. The links between them were extracted with a commercial...