Εξαγωγή χωροχρονικών δεδομένων από το Twitter
Spatiotemporal data management from Twitter
KeywordsTwitter ; Incident detection and tracking ; Information retrieval ; Μέσα κοινωνικής δικτύωσης
How can information available on Twitter exploited to extract important information occurring in a specific geographical area? In this paper this question will be explored and a strategy will presented to identify tweets which contain their geographical position within a specific geographical area. First, real-time recording of tweets architecture is proposed using Twitter streaming API and creating an inverted index using the library Apache Lucene. In addition during search from the Index recognition techniques are used to further analyze the results of the search. Finally we evaluate the performance of the entire system related to the correctness of the architecture adopted for recording and analysis of the tweets and on the correctness of the results returned by the system.