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Purpose The purpose of this paper is to explore the extent of the urban tourism literature that uses the systems approach to outline its research trajectory and detect its trends. Urban tourism is a complex phenomenon whose complexity increases at the very moment it interacts with complex environments. To deal with this kind of issues, urban tourism-related authors have used different approaches, with the systems approach being one of the best alternatives for its understanding and study. Design/methodology/approach A systematic literature review was conducted using two sets of keywords related to urban tourism and systems approach. Scopus, ScienceDirect and Web of Science databases were used for the peer-reviewed literature search. After filtering processes were applied, 29 publications were retained for the analysis. Findings This paper provides a significant overview of the existing publications regarding this topic. A theme of common interest and trends for future investigations were detected. Based on the findings, future works to be developed with the use of the systems approach, and its tools are proposed. Originality/value This review gives promising evidence on that the use of the systems approach for future urban tourism studies is a viable alternative to the application of other dominant approaches, to manage the complexity, diversity and dynamism of the urban tourism and of its environment, which is nowadays addressed as Smart. Then, the paper seeks to foster the use of systems approach and its systemic tools for the understanding and study of urban tourism as a complex system.

Purpose -This paper aims to contribute to deepening insights on social media in agricultural research by presenting a case study on how a research and education centre in Mexico connected, communicated, and interacted in a research and education community on Twitter.Design/methodology/approach -By using a Social Network Analysis (SNA) approach, 1585 tweets were analysed. The data was gathered using NodeXL. Afterwards, SNA was performed through the igraph R package.Findings -The dynamic of virtual interaction around an agricultural research and education centre shows that different roles are needed to connect and foster the interaction on Twitter, as well as to spread information broader. While some accounts are functioning as creators of information, others act as consumers and diffusers of it, and a few more accounts play both roles.Practical Implications -To increase the size and strengthen the interaction of a network on Twitter, it is advisable to have the support of other accounts and to promote its use among potential users. This requires capabilities to develop a social media strategy and pro-actively engage new followers.Theoretical Implications -Through a SNA approach, it is possible to understand better the functions of weak and strong ties in virtual settings, i.e. the former to extend the network, and the latter to strengthen it. These ties can enhance information dissemination and enable exchanges on social media.Originality/value -This paper applies SNA as a theoretical and methodological framework to demonstrate that the interactions among users are different when a whole network is analysed, and when it is divided into the mentions and retweets networks. By doing this, hidden patterns are revealed.

La comunicación del conocimiento científico es parte fundamental del progreso de la ciencia y vital para la sociedad moderna. Así, las conferencias y congresos científicos son espacios cruciales para estos procesos de comunicación. Esta investigación tiene como objetivo analizar la comunicación de trabajos científicos en un congreso agrícola; de tal forma que se añade conocimiento a la literatura en tres vertientes: uso de datos, aplicación metodológica y evidencia empírica. Para hacer esto, analizamos 316 títulos de ponencias presentadas a lo largo de cinco años. Usamos dos enfoques metodológicos: data-mining y análisis de redes sociales (ARS). Los resultados muestran que en los 316 títulos se han utilizado 1,093 términos diferentes, siguiendo una distribución power-law. A través de una red de bi-gramas, se encontró que estos términos están unidos por 1,847 relaciones dirigidas. Además, con el ARS se identificaron las palabras más importantes según distintos indicadores. Se concluye que la información existente en los archivos de congresos científicos es rica en contenido y puede ser útil para encontrar brechas de conocimiento. Además, los enfoques utilizados se complementan entre sí. Este artículo proporciona evidencia técnica y empírica sobre el campo del network mining.

The aim of this paper is to propose a systemic model for the urban tourism insertion in the Digital, Smart and Knowledge City (DSKC) of Mexico City (CDMX) due to the recent and considerable economic importance of this kind of tourism in innovative and competitive cities. Based on this understanding, a diagnosis of the urban tourism role in the DSKC of CDMX was developed by using the systems thinking. Therefore, the Soft Systems Methodology (SSM) was applied, because of its holistic vision, and the technological and social components it involves. The Strategic Direction Model (SDM) was also used in a complementary and parallel way to the SSM. The findings allowed us to detect, among other aspects, the problem situations such as the inexistence of a document which contains the development of the DSKC, and the lack of articulation between the components of the urban tourism and the DSKC. For that reason, some elements were established in order to design a conceptual model. This research finishes by using the Viable System Model (VSM), to validate this construct and, at the same time, provide it with substantial elements, such as innovation, ICT, sustainability, and accessibility, in which tourism and cities have been immersed recently.