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  • Rocio Martinez-Torres
Rocio Martinez-Torres

Rocio Martinez-Torres
Universidad de Sevilla | US · Departamento de Administración De Empresas Y Comercialización E Investigación De Mercados (Marketing)

About

96
Publications
22,341
Reads
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1,849
Citations

Publications

Publications (96)
Article
The latest research shows that the identification of helpful reviews from a large volume of user–generated data is a trending topic. The present study uses an approach that not only predicts if an online review is helpful, neutral or not helpful with 66% accuracy, but most importantly models online review helpfulness. To this end, we use an adaptiv...
Article
Previous studies have concluded that there are significant differences in travelers’ preferences depending on the trip type. The problem of extracting users’ preferences from a corpus of text can be solved by using traditional clustering algorithms, which work quite well when there is no predefined data structure. However, in this paper, we conside...
Article
Given eWOM's growing importance and the interest of companies in having their products positively rated, it is necessary to analyze the behavior of influencers in online communities and determine the activities that might explain their level of trustworthiness. This paper focuses on identifying the different attributes obtained from online communit...
Article
The popularity of online reviews is causing a huge impact on consumers’ purchase intentions for goods and services. However, and hidden by the anonymity of the Internet, fraudsters can try to manipulate other consumers by posting fake reviews. Maintaining trust in online reviews require the development of automatic tools using machine learning appr...
Article
Full-text available
El comercio online y los sistemas de recomendación tienen un efecto sobre la demanda de distintos tipos de productos. El objetivo del artículo es probar si internet promueve los productos más populares o super-hit, los productos menos populares o nicho, o ambos, así como analizar cuantitativamente la coexistencia de los efectos super-hit y de «cola...
Article
The proliferation of online retailers combined with recommender systems has facilitated the availability of various products and services through the Internet. However, the effect of this availability depends on the products' categories: in some cases, the web promotes the superhit products even more while keeping a short tail; however, in other ca...
Article
Electronic Word-of-Mouth communities have become popular over the last several years as websites where people can share their online reviews about any type of product or service. As a mechanism to improve trust, posted reviews can also be scored by the rest of the community in terms of helpfulness, so users can reach a high level of reputation thro...
Article
The emergence of online user-generated content has raised numerous questions about discourse gender differences as compared to face-to-face interactions. The intended gender-free equality of Internet has been challenged by numerous studies, and significant differences have been found in online communications. This paper proposes the application of...
Article
Full-text available
This research aims to identify the main barriers that make the access of women to top management levels in Universities difficult. These barriers promote the generally known and assumed reality of gender inequality in these governing bodies. A scientific method. Concept Mapping (Trochim, 1989) has been used to this aim. This methodology, whose use...
Article
Full-text available
Online reviews have become increasingly important in tourist destinations and they affect the way in which they are perceived by potential consumers. They represent an overabundant source of information in the form of open answers, where customers freely express their experience regarding the tourist destination. Previous studies have made use of t...
Article
Purpose This paper aims to explore the image of travel destinations after the visit by analysing sentiment orientation of the online reviews, and how this orientation, as well as other electronic word of mouth (eWOM)’s credibility sources, can affect the perceived helpfulness of shared opinions measured through the helpfulness score. Design/method...
Conference Paper
The identification of influencers in any type of online social network is of paramount importance, as they can significantly affect consumers’ purchasing decisions. This paper proposes the utilization of a self-designed web scraper to extract meaningful information for the identification of influencers and the analysis of how this new set of variab...
Article
Full-text available
Nowadays electronic word-of-mouth (eWOM) communities symbolise a significant source of information that helps customers to make informed purchasing decisions. Through eWOM communities, a great audience of users is able to acquire knowledge from reviews concerning products and services that are less popular to the majority. The Long Tail effect is a...
Conference Paper
Today, user generated content and online shared opinions are gaining relevance as a source of information not only for other consumers but also for retailers. However, the huge number of posted opinions makes difficult any manual analysis. This paper proposes a new approach for gender discourse analysis based on the semantic analysis of the content...
Article
Full-text available
Customers can participate in open innovation communities posting innovation ideas, which in turn can receive comments and votes from the rest of the community, highlighting user preferences. However, the final decision about implementing innovations corresponds to the company. This paper is focused on the customers' activity in open innovation comm...
Article
Full-text available
Open innovation (OI) represents an emergent paradigm by which customers and users are involved as part of the innovation processes of organisations. One of its most popular implementation schemes is OI communities, which have been popularised by the use of social software. Through these communities, users are free to post, share, comment and evalua...
Article
Full-text available
Tourist destinations are increasingly affected by the travel-related information shared through the Web. More and more people first check the previous experiences of other customers before doing their own decision-making. This paper explores the image of travel destinations by analysing the content of opinions shared using sentiment analysis techni...
Article
Full-text available
Online communities are self-organized networks with a clear core-periphery structure, where most of the contributions are due to a small group of users known as the core group. Although several methods for detecting the core-periphery structure have been proposed, all of them assume a pre-defined structure of the core group. However, online communi...
Article
Full-text available
This paper is focused on the identification of influencers that can have an important impact over the decision-making of other users. For this purpose, a popular electronic word-of-mouth community like Ciao.com has been modelled as a social network. Using social network analysis techniques, the existence of influencers is justified by the power law...
Article
Full-text available
The success of an open-source software project is closely linked to the successful organization and development of the underlying virtual community. In particular, participation is the most important mechanism by which the development of the project is supported. The main objective of this paper is to analyse the online participation in virtual com...
Article
Full-text available
Open innovation is an emergent paradigm by which organisations make use of their internal and external resources to perform their innovation processes. The growth of information and communication technologies has facilitated the spread of online open innovation communities, where users can share ideas as well as comment on and evaluate ideas posted...
Article
Full-text available
Open source software (OSS) projects represent a new paradigm of software creation and development based on hundreds or even thousands of developers and users organised in the form of a virtual community. The success of an OSS project is closely linked to the successful organisation and development of the virtual community of support group. This pap...
Article
This paper proposes a procedure for identifying the intangible assets that generate value to knowledge-intensive organizations using concept mapping techniques. Concept mapping is a form of structured conceptualization that incorporates and processes the opinion of a set of experts. A double statistical treatment consisting of a multidimensional sc...
Conference Paper
Electronic Word-Of-Mouth (eWOM) communities represent today an important source of information in which more and more customers base their purchasing decisions. They include thousands of reviews concerning very different products and services posted by many individuals geographically distributed all over the world. Due to their massive audience, eW...
Article
Full-text available
Spanish public universities are a reflection of gender inequalities in the public sphere. Various studies and reports published to date demonstrate a lack of equity in the participation of women and men in institutions that are considered democratic. The principle objective of this work is to diagnose gender composition in the Spanish university sp...
Article
Full-text available
The concept of webpage visibility is usually linked to search engine optimization, and it is based on global in-link metric, that is, the number of received links from other websites, but without considering the sources of these links. The purpose of this article is to demonstrate that this global idea of visibility is only weakly correlated with w...
Article
Open innovation represents an emergent paradigm by which organizations make use of internal and external resources to drive their innovation processes. The growth of information and communication technologies has facilitated a direct contact with customers and users, which can be organized as open innovation communities through Internet. The main d...
Article
Full-text available
Purpose ‐ During recent decades, research institutions have increased collaboration with other institutions since it is recognized as a good practice that improves their performance. However, they do not usually consider external collaborations as a strategic issue despite their benefits. The purpose of this paper consists of identifying different...
Article
Purpose: Open innovation represents an emergent paradigm by which organizations make use of internal and external resources to drive their innovation processes. The growth of information and communication technologies has facilitated the emergence of online open innovation communities which allow a direct contact with customers and users. The aim o...
Article
This paper proposes the identification of patterns of behaviour of open source software (OSS) communities using factor analysis and their social network analysis (SNA) features. OSS communities can be modelled as a social network in which nodes represent the community members and arcs represent the social interactions among them, and factor analysi...
Conference Paper
Full-text available
For several decades, academics around the world have been collaborating with the view to support the development of their research domain. Having said that, the majority of scientific and technological policies try to encourage the creation of strong inter-related research groups in order to improve the efficiency of research outcomes and subsequen...
Conference Paper
Full-text available
Open source software represents a new paradigm of software development based on a subjacent community. It is widely accepted in the literature the layered structure of open source communities, being the core group the most active contributors usually located at the center of the community. The tasks of this group include not only an intense activit...
Article
Full-text available
This paper explores website link structure, whereby websites are considered as interconnected graphs and their features are analyzed as a social network. For each root domain, two different networks are extracted: the first being the domain network and the second, the page network. In each case, a series of indicators taken from social network anal...
Article
The widespread availability of digital learning resources in a variety of media formats has promoted the proliferation of eLearning systems as an integral part of teaching across all sectors of education. However, these systems are rarely planned in advance taking into account its final usefulness. At most, they are validated through learner experi...
Article
Full-text available
The evolution of electronics and the growing capabilities of in-vehicle and public infrastructure equipment make feasible the development of new value-added services in the field of intelligent transportation systems (ITS). However, initiatives in this sense frequently failed due to the lack of agreement or coordination among service providers, pub...
Article
Full-text available
Purpose – Web sites are typically designed attending to a variety of criteria. However, web site structure determines browsing behavior and way-finding results. The aim of this study is to identify the main profiles of web sites' organizational structure by modeling them as graphs and considering several social network analysis features. Design/met...
Article
Full-text available
Open source software (OSS) projects are supported by communities interacting through software repositories and mailing lists. Thousands of contributors participate in the development of the projects although they rarely meet each other. The result is a huge archived repository with thousands of questions, answers and contributions usually difficult...
Article
Full-text available
A cross-analysis of EU masters' programs and professional profiles in information and communication technology reveals deficiencies in many areas. Reform initiatives are already addressing some of these deficiencies, but work remains.
Article
Full-text available
Looking across the rapidly developing world, it is even more crucial for companies to benchmark their R&D investment against best international practice in their sector and to understand the ways in which their R&D investment will affect future business performance. The globalisation of technology requires a global analysis involving companies all...
Article
Full-text available
Intelligent transportation systems (ITS) constitute today a multidisciplinary field of study involving a large number of different research areas. As a consequence, it is difficult to achieve a structured view of ITS, which is necessary to unify efforts and as guidance for future developments. This study aims to identify the main paradigms in the f...
Conference Paper
Full-text available
This paper explores website link structure considering websites as interconnected graphs and analyzing their features as a social network. Factor Analysis provides the statistical methodology to adequately extract the main website profiles in terms of their internal structure. However, due to the large number of indicators, a genetic search of thei...
Article
This paper proposes to identify strategic groups among franchisors from a big set of franchisor variables. Genetic evolutionary computation was used to reduce a set of variables efficiently, and factor analysis was used to make up the strategic groups. Franchise 500 was used as database. The results suggest both that the general map of franchisor h...
Article
This paper analyses the behaviour of virtual communities for Open Source Software (OSS) projects. The development of OSS projects relies on virtual communities, which are built on relationships among members, being their final objective sharing knowledge and improving the underlying project. This study addresses the interactive collaboration in the...
Article
Full-text available
Purpose – The Internet has evolved, prompted in part by new Web 2.0 technologies, to become a more widespread platform for interaction, communication, and activism. Virtual communities, or groups of people informally bound together by shared expertise, synthesise this Internet evolution and the Web 2.0 technology. Users increasingly want to engage...
Conference Paper
Full-text available
The evolution of electronics and the growing capabilities of in-vehicle and public infrastructure equipments make feasible the development of new value added services in the field of intelligent transportation systems. However, initiatives in this sense frequently failed due to the lack of agreement or coordination among service providers, public a...
Article
Full-text available
Open source software (OSS) projects represent a new paradigm of software creation and development based on hundreds or even thousands of developers and users organised in the form of a virtual community. The success of an OSS project is closely linked to the successful organisation and development of the virtual community of support. The main objec...
Article
Full-text available
A large variety of online communities have emerged during the last years as a result of the challenges faced by both the business and scientific worlds. This trend has also been promoted by the development of internet and new Web 2.0 technologies. In this context, this paper is focused on the determinants of success of online communities. But, as a...
Article
Full-text available
The prevailing tendency in modern university reforms is towards ldquohow people learn,rdquo following a learner-centered approach in which the learner is the main actor of the teaching-learning process. As a consequence, one of the key indicators of the teaching-learning process is the measurement of learner satisfaction within the classroom. Learn...
Article
Full-text available
One of the benefits firms can derive from using Open Source Software (OSS) is informal development collaboration and the primary tool for collaboration and coordination are group mailing lists. The purpose of the paper is modelling mailing lists behaviour in OSS projects using a set of descriptors that could inform about their quality and their evo...
Article
Full-text available
This research explores the role of mailing lists in open source software projects as a tool for knowledge sharing and problem resolution. One of the benefits that firms can derive from using Open Source Software (OSS) is informal development collaboration. The primary tool for collaboration and coordination are group mailing lists, followed by asyn...
Article
Full-text available
The application of scientific tools to analyse the use of Internet-based e-learning tools in academic settings is in general an ignored area. E-learning tools are actually an emergent topic as a result of the new ideas introduced by the European Higher Education Area. Lifelong learning, or the promotion of student initiative, is the new paradigm of...
Article
Full-text available
Este trabajo explora el papel desempeñado por las listas de distribución en proyectos de software de código abierto como herramienta para compartir conocimiento y resolver problemas. Uno de los principales beneficios que las empresas pueden obtener del uso de software de código abierto es la colaboración informal en desarrollo de aplicaciones. La h...
Article
This paper presents an exploratory study about the development of a structural and measurement model for the technological acceptance (TAM) of a web-based educational tool. The aim consists of measuring not only the use of this tool, but also the external variables with a significant influence in its use for planning future improvements. The tool,...
Article
Full-text available
Curriculum design is a concern in European Universities as they face the forthcoming European Higher Education Area (EHEA). This process can be eased by the use of scientific tools such as Concept-Mapping Techniques (CMT) that extract and organize the most relevant information from experts’ experience using statistics techniques, and helps a workin...