Risultati di ricerca
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Cresci, S., Del Vigna, F. e Tesconi, M. (2017) I Big Data nella ricerca politica esociale, in Andretta, M., and Bracciale, R., (eds.), Social Media Campaigning: Le elezioni regionali in #Toscana2015, Pisa: Pisa University Press, 113-140
In questo capitolo introdurremo le caratteristiche e le peculiarità dei dati social. Ci soffermeremo sulle criticità relative alla raccolta e all’analisi di tali dati, approfondendo alcune metodologie che permettono di utilizzare i dati social per...
https://phd.dii.unipi.it/pubblicazioni/item/1686-cresci,-s-,-del-vigna,-f-e-tesconi,-m-2017-i-big-data-nella-ricerca-politica-esociale,-in-andretta,-m-,-and-bracciale,-r-,-eds-,-social-media-campaigning-leelezioni-regionali-in-toscana2015,-pisa-pisa-university-press,-113-140.html -
Del Vigna, F., Petrocchi, M., Deluca, P. & Tesconi, M. (2016). Main social media analysis outcome of the CASSANDRA project Main social media analysis outcome of the CASSANDRA project. IIT TR-12/2016
This report presents the outcome of a series of analysis on different social media, where users discuss on drugs and their effects. The aim of such an analysis is twofold. First, we automatically detect drugs and their effects. Secondly, we explore the...
https://phd.dii.unipi.it/pubblicazioni/item/1685-del-vigna,-f-,-petrocchi,-m-,-deluca,-p-tesconi,-m-2016-main-social-media-analysis-outcome-of-the-cassandra-project-main-social-media-analysis-outcome-of-the-cassandra-project-iit-tr-12-2016.html -
Del Vigna, F., Petrocchi, M. & Tesconi, M. (2016). Technical report on the methodology used for the analysis of websites. IIT TR-10/2016
New Psychoactive Substances (NPS) are drugs that lay in a grey area of legislation, since they are not internationally and officially banned, possibly leading to their not prosecutable trade. The exacerbation of the phenomenon is that NPS can be easily...
https://phd.dii.unipi.it/pubblicazioni/item/1684-del-vigna,-f-,-petrocchi,-m-tesconi,-m-2016-technical-report-on-the-methodology-used-for-the-analysis-of-websites-iit-tr-10-2016.html -
Del Vigna, F., Cimino, A., Dell’Orletta, F., Petrocchi, M., & Tesconi, M. (2017). Hate me, hate me not: Hate speech detection on Facebook.
While favouring communications and easing information sharing, Social Network Sites are also used to launch harmful campaigns against specific groups and individuals. Cyberbullism, incitement to self-harm practices, sexual predation are just some of the...
https://phd.dii.unipi.it/pubblicazioni/item/1683-del-vigna12,-f-,-cimino23,-a-,-dell’orletta,-f-,-petrocchi,-m-,-tesconi,-m-2017-hate-me,-hate-me-not-hate-speech-detection-on-facebook.html -
Avvenuti, M., Cresci, S., Del Vigna, F., & Tesconi, M. (2017). On the need of opening up crowdsourced emergency management systems. AI & SOCIETY, 1-6.
Nowadays, social media analysis systems are feeding on user contributed data, either for beneficial purposes, such as emergency management, or for user profiling and mass surveillance. Here, we carry out a discussion about the power and pitfalls of...
https://phd.dii.unipi.it/pubblicazioni/item/1682-avvenuti,-m-,-cresci,-s-,-del-vigna,-f-,-tesconi,-m-2017-on-the-need-of-opening-up-crowdsourced-emergency-management-systems-ai-society,-1-6.html -
Towards an Automated Analysis of the Online Supply Chain of Novel Psychoactive Substances
Novel Psychoactive Substances (NPSs), also known as legal highs or smart drugs, are legal alternatives to illegal drugs. Many drugs consumers are appealed by the opportunity of buying substances without any legal consequences. Online shops, virtual...
https://phd.dii.unipi.it/pubblicazioni/item/1108-towards-an-automated-analysis-of-the-online-supply-chain-of-novel-psychoactive-substances.html -
Avvenuti, M., Cresci, S., Del Vigna, F., & Tesconi, M. (2016). Impromptu crisis mapping to prioritize emergency response. Computer, 49(5), 28-37.
To visualize post-emergency damage, a crisis-mapping system uses readily available semantic annotators, a machine-learning classifier to analyze relevant tweets, and interactive maps to rank extracted situational information. The system was validated...
https://phd.dii.unipi.it/pubblicazioni/item/1107-impromptu-crisis-mapping-to-prioritize-emergency-response.html -
Del Vigna, F., Avvenuti, M., Bacciu, C., Deluca, P., Petrocchi, M., Marchetti, A., & Tesconi, M. (2016, October). Spotting the diffusion of New Psychoactive Substances over the Internet. In International symposium on intelligent data analysis
Abstract - Online availability and diffusion of New Psychoactive Substances (NPS) represent an emerging threat to healthcare systems. In this work, we analyse drugs forums, online shops, and Twitter. By mining the data from these sources, it is...
https://phd.dii.unipi.it/pubblicazioni/item/1106-spotting-the-diffusion-of-new-psychoactive-substances-over-the-internet.html -
Del Vigna, F., Petrocchi, M., Tommasi, A., Zavattari, C., & Tesconi, M. (2016, November). Semi-supervised knowledge extraction for detection of drugs and their effects. In International conference on social informatics (pp. 494-509). Springer
Abstract - New Psychoactive Substances (NPS) are drugs that lay in a grey area of legislation, since they are not internationally and officially banned, possibly leading to their not prosecutable trade. The exacerbation of the phenomenon is that NPS...
https://phd.dii.unipi.it/pubblicazioni/item/1104-del-vigna,-f-,-petrocchi,-m-,-tommasi,-a-,-zavattari,-c-,-tesconi,-m-2016,-november-semi-supervised-knowledge-extraction-for-detection-of-drugs-and-their-effects-in-international-conference-on-social-informatics-pp-494-509-springer.html -
Semi-supervised knowledge extraction for detection of drugs and their effects
Abstract - New Psychoactive Substances (NPS) are drugs that lay in a grey area of legislation, since they are not internationally and officially banned, possibly leading to their not prosecutable trade. The exacerbation of the phenomenon is that NPS...
https://phd.dii.unipi.it/pubblicazioni/item/1102-semi-supervised-knowledge-extraction-for-detection-of-drugs-and-their-effects.html -
Semi-supervised knowledge extraction for detection of drugs and their effects
Abstract - New Psychoactive Substances (NPS) are drugs that lay in a grey area of legislation, since they are not internationally and officially banned, possibly leading to their not prosecutable trade. The exacerbation of the phenomenon is that NPS...
https://phd.dii.unipi.it/pubblicazioni/item/1103-semi-supervised-knowledge-extraction-for-detection-of-drugs-and-their-effects.html -
#selfie: mapping the phenomenon
The introduction of smartphones equipped with a front camera and constantly connected to social networks has encouraged the spread of usergenerated content of multimedia nature. This led to the emergence of new social phenomena that have a strong...
https://phd.dii.unipi.it/pubblicazioni/item/1105-selfie-mapping-the-phenomenon.html -
Cresci, Del Vigna - Social Media for the Common Good: the case of EARS
Abstract - Natural disasters such as earthquakes, tornadoes and floods, are just some of the devastating events that may have catastrophic consequences on wide geographical areas. A quick and targeted response to emergencies greatly contributes in...
https://phd.dii.unipi.it/pubblicazioni/item/602-http-www-iit-cnr-it-node-33507.html -
Bellomo, Cresci, Del Vigna, La Polla - A platform for gathering eyewitness reports from social media users in the aftermath of emergencies
Social sensing is based on the idea that communities or groups of people can provide sets of information similar to that which is obtainable from sensor networks. Emergency management and situation awareness are candidate fields of application for...
https://phd.dii.unipi.it/pubblicazioni/item/601-http-www-iit-cnr-it-node-34297.html -
Avvenuti, Del Vigna, Cresci, Marchetti, Tesconi, "Pulling Information from Social Media in the Aftermath of Unpredictable Disasters", 2015 2nd International Conference on Information and Communication Technologies for Disaster Management (ICT-DM)
Abstract — Social Media are nowadays one of the most used channel for communicating with other people, continuously overwhelmed by a huge quantity of User Generated Content, including text, images and videos. A peculiar aspect of the published material...
https://phd.dii.unipi.it/pubblicazioni/item/600-avvenuti,-del-vigna,-cresci,-marchetti,-tesconi,-pulling-information-from-social-media-in-the-aftermath-of-unpredictable-disasters-,-2015-2nd-international-conference-on-information-and-communication-technologies-for-disaster-management-ict-dm.html
