Nowadays, vast quantities of data related with the whereabouts of people are generated by the use of location-based services (LBS). This is possible due to the easiness with which modern smartphones can communicate their precise location via the global positioning system (GPS). In this regard, social media have begun to use LBS to aid social encounter and place discovery and this fact has also led to an increased interest from different fields of study in the information that can be gathered from them. In this framework, different multidisciplinary groups, comprising computational science experts, sociologists, geographers and urban planners around the world, have developed studies in which the collection of location-based social media data is beginning to be explored as an opportunity to obtain valuable information related with people’s localization and their activities, but the scholars involved have also suggested that further work should still be done to find suitable approaches to produce meaningful interpretations of that data. Considering these facts, and taking into account previous researches on these issues, the study presented in this dissertation started from the assumption that a spatial analysis of the aggregate activity generated by such networks can show us how social activity in a city is distributed, revealing spatial patterns manifested in the social life of cities that could be useful for urban analysis. Consequently, the examination of data from such networks has been proposed in order to produce an urban analysis of the spatial patterns of one specific urban area by aiming, in particular, at unveiling the emotions its users experiment in order to create maps that represent the “Emotional Areas” of the city. For this purpose, the examination and analysis of Foursquare data has been developed through the creation of a suitable web mapping application that has helped making the interpretation of the data gotten into representations of the users’ emotions and perceptions. The work developed and the analysis made show, on the one hand, that the analysis of the social interactions in real-time would contribute to produce a deeper insight about the dynamic aspect of the city and how the social virtual interactions and emotions could be related with the physical landscape, while, on the other hand, it provides a better understanding of the impact and potentialities of location-based social media data in the context of urban analysis.
Oggigiorno, grandi quantità di dati relazionati con la localizzazione delle persone sono generati attraverso l’utilizzo dei location-based services (LBS). Ciò è possibile grazie alla facilità con cui gli smartphone moderni possono comunicare la loro posizione precisa attraverso il sistema di posizionamento globale (GPS). A questo proposito, i social media hanno iniziato ad utilizzare LBS per sviluppare l’interazione sociale e la “scoperta” dei luoghi e dei loro modi d’uso e questo fatto ha generato anche un crescente interesse da diversi campi di studio per le informazioni che possono essere così prodotte e raccolte. In questo contesto, diversi gruppi multidisciplinari, composti da esperti di scienze computazionali, sociologi, geografi e urbanisti, hanno sviluppato studi in cui la raccolta dei dati dei location-based social media sta cominciando ad essere esplorata come un’opportunità per ottenere preziose informazioni correlate con la localizzazione delle persone e le loro attività, ma gli studiosi coinvolti hanno anche suggerito che ulteriori lavori dovrebbero essere sviluppati per produrre interpretazioni significative di tali dati. Considerando questi fatti, e tenendo conto di ricerche fatte in precedenza su questi temi, lo studio presentato in questa tesi si è basato sul presupposto che un’analisi spaziale delle attività generata da tali reti ci può rivelare modelli spaziali che si manifestano nella vita sociale delle città e che potrebbero essere utili per l’analisi urbana. E’ stato proposto lo studio dei dati provenienti da tali reti al fine di produrre un’analisi urbana dei comportamenti nello spazio in una determinata area urbana, mirando, in particolare, a svelare le emozioni dei suoi utenti per creare mappe che rappresentino le “Aree Emozionali” della città. A tal fine, sono stati elaborati i dati di Foursquare attraverso la creazione di una web mapping application che ha permesso di interpretare i dati ottenuti e di rappresentare le emozioni e percezioni degli utenti. La ricerca ha dimostrato come l’analisi in tempo reale delle interazioni sociali in rete potrebbe contribuire a comprendere meglio l’aspetto dinamico dell’uso della città e come queste interazioni virtuali ed emozionali potrebbero essere correlate con il paesaggio fisico.
Location-based social media for urban analysis
SILVA LIZCANO, ABEL
Abstract
Nowadays, vast quantities of data related with the whereabouts of people are generated by the use of location-based services (LBS). This is possible due to the easiness with which modern smartphones can communicate their precise location via the global positioning system (GPS). In this regard, social media have begun to use LBS to aid social encounter and place discovery and this fact has also led to an increased interest from different fields of study in the information that can be gathered from them. In this framework, different multidisciplinary groups, comprising computational science experts, sociologists, geographers and urban planners around the world, have developed studies in which the collection of location-based social media data is beginning to be explored as an opportunity to obtain valuable information related with people’s localization and their activities, but the scholars involved have also suggested that further work should still be done to find suitable approaches to produce meaningful interpretations of that data. Considering these facts, and taking into account previous researches on these issues, the study presented in this dissertation started from the assumption that a spatial analysis of the aggregate activity generated by such networks can show us how social activity in a city is distributed, revealing spatial patterns manifested in the social life of cities that could be useful for urban analysis. Consequently, the examination of data from such networks has been proposed in order to produce an urban analysis of the spatial patterns of one specific urban area by aiming, in particular, at unveiling the emotions its users experiment in order to create maps that represent the “Emotional Areas” of the city. For this purpose, the examination and analysis of Foursquare data has been developed through the creation of a suitable web mapping application that has helped making the interpretation of the data gotten into representations of the users’ emotions and perceptions. The work developed and the analysis made show, on the one hand, that the analysis of the social interactions in real-time would contribute to produce a deeper insight about the dynamic aspect of the city and how the social virtual interactions and emotions could be related with the physical landscape, while, on the other hand, it provides a better understanding of the impact and potentialities of location-based social media data in the context of urban analysis.File | Dimensione | Formato | |
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2014_12_PhD_SilvaLizcano.pdf
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Descrizione: PhD Thesis Abel Silva Lizcano
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https://hdl.handle.net/10589/98561