This dissertation was written as a part of the MSc in ICT Systems at the International Hellenic University. The main goal of the dissertation was to discover text mining tools in order to use them in social media and social networks for participatory sensing reasons. Environmental issues are around us each time of day and for that reason it is necessary to identify them using available text mining tools. It is a fact that there is a lack of available text mining software for social networks for use because companies use them for personal or research purposes only. For that reason two internet text mining tools have been used for the completion of this dissertation.
The objective of the current dissertation is to monitor social media and a specific social network for participatory sensing issues. The main idea of participatory sensing is to gather information from individuals and then try to derive/create/disseminate useful knowledge about issues that concern all of us and most of the times about the environment. In line with the adopted methodology, specific keywords have been searched followed by geographical assessment of the town of Thessaloniki in order to acquire information of that specific area. An internet web tool called “Social Mention” has been used for all social media and another web tool called “Trending” has been used for Twitter. The results of both web internet tools generated interesting information about environmental issues and problems showing that quite a few issues like waste and garbage management, concern Greek society and especially the town of Thessaloniki. With the participation of citizens and access in environmental information, a more safe and healthy environment is possible in the future.
At this point, I would like to thank my supervisor Professor Kostas Karatzas for his confidence in me and for the valuable guidance throughout the preparation of my dissertation. I would like also to thank Ms. Marina Riga which was by my side the entire time of the dissertation and help me out with her patience. Last but not least, I would like to thank my family for their love and support.
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