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Spatialities, social Media and sentiment analysis: Exploring the potential of the detection tool SentiStrength / Christina Reithmeier in GI Forum, vol 2018 n° 2 ([01/09/2018])  

Public [article]  inGI Forum > vol 2018 n° 2 [01/09/2018] . - pp 85 - 96 Titre : Spatialities, social Media and sentiment analysis: Exploring the potential of the detection tool SentiStrength Type de document : Article/Communication Auteurs : Christina Reithmeier, Auteur ; Karoline Buschbaum, Auteur ; Detlef Kanwischer, Auteur Année de publication : 2018 Article en page(s) : pp 85 - 96 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Linguistique [Termes IGN] données issues des réseaux sociaux [Termes IGN] espace urbain [Termes IGN] sentiment [Termes IGN] Twitter Résumé : (auteur) Social media such as Twitter or Facebook not only create new spaces of interaction and communication, they also influence the way we perceive things and lead to changes in our self-perception and our own worldview. Online data occur in various forms and can contain opinions or expressions of feeling. In this article, we explore the potential of SentiStrength, a tool for sentiment analysis in geographic research. We analyse posts on Twitter containing hashtags for possible constructions of spaces in Ostend, a neighbourhood in Frankfurt, Germany. We collected tweets via the Twitter API and used the SentiStrength online application to conduct our sentiment analysis. In order to evaluate the results, we also classified our data manually for comparison. Through its lexicon-based classification, the tool was able to identify positive and negative associations of Ostend. However, we were also able to demonstrate the limitations of the tool compared to manual analysis. Although it provides a quick and comprehensive overview of sentiments, SentiStrength reaches its limits when other media such as images are involved. Overall, the tool offers a good low-threshold approach for scientists to work with digital data. Numéro de notice : A2018-608 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.1553/giscience2018_02_s85 En ligne : http://dx.doi.org/10.1553/giscience2018_02_s85 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=92834 [article]

Diversity and transparency in (volunteered) geoinformation practices / Tilo Felgenhauer in GI Forum, vol 2018 n° 2 ([01/09/2018])  

Public [article]  inGI Forum > vol 2018 n° 2 [01/09/2018] . - pp 97 - 102 Titre : Diversity and transparency in (volunteered) geoinformation practices Type de document : Article/Communication Auteurs : Tilo Felgenhauer, Auteur Année de publication : 2018 Article en page(s) : pp 97 - 102 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Bases de données localisées [Termes IGN] données localisées des bénévoles [Termes IGN] interface utilisateur [Termes IGN] langage cartographique [Termes IGN] toponyme Résumé : (auteur) Geoinformationis represented in increasing numbers of different forms, with heterogeneous social and cultural implications. This paper highlights the merits as well as the ambivalence of the social (especially) and political effects of the widespread expansion and growing importance of (volunteered) geographic information. This general overview of the basic symbolic forms in which geoinformation appears distinguishes between three areas of spatial semantics: while technological systems address space mainly in numerical terms, the user refers to space by ego-centered deixis, while society and culture provide the established everyday language of toponyms. The main argument, based on this categorization, stresses the importance of diversity and transparency in acting and interacting with geoinformation and geomedia in order to promote empowerment, education and reflection. Numéro de notice : A2018-609 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.1553/giscience2018_02_s97 En ligne : http://dx.doi.org/10.1553/giscience2018_02_s97 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=92835 [article]