01251nas a2200229 4500008004100000245008900041210006900130260002900199300001400228490000900242520052600251100002500777700002100802700001600823700002000839700002300859700002100882700002200903700002500925700002000950856005100970 2009 eng d00aSpatio-Temporal-Thematic Analysis of Citizen Sensor Data: Challenges and Experiences0 aSpatioTemporalThematic Analysis of Citizen Sensor Data Challenge aPoznan, PolandbSpringer a539–5530 v58023 a

We present work in the spatio-temporal-thematic analysis of citizen-sensor observations pertaining to real-world events. Using Twitter as a platform for obtaining crowd-sourced observations, we explore the interplay between these 3 dimensions in extracting insightful summaries of social perceptions behind events. We present our experiences in building a web mashup application, Twitris [1] that extracts and facilitates the spatio-temporal-thematic exploration of event descriptor summaries.

1 aNagarajan, Meenakshi1 aGomadam, Karthik1 aSheth, Amit1 aRanabahu, Ajith1 aMutharaju, Raghava1 aJadhav, Ashutosh1 aVossen, Gottfried1 aLong, Darrell, D. E.1 aYu, Jeffrey, Xu uhttp://dx.doi.org/10.1007/978-3-642-04409-0_5201167nas a2200205 4500008004100000245004200041210004100083260002300124520055100147100002100698700001600719700002300735700002300758700001700781700001600798700002100814700002500835700002000860856008100880 2009 eng d00aTwitris: Socially Influenced Browsing0 aTwitris Socially Influenced Browsing aWashington DC, USA3 a

In this paper, we present Twitris, a semantic Web application that facilitates browsing for news and information, using social perceptions as the fulcrum. In doing so we address challenges in large scale crawling, processing of real time information, and preserving spatiotemporal-thematic properties central to observations pertaining to realtime events. We extract metadata about events from Twitter and bring related news and Wikipedia articles to the user. In developing Twitris, we have used the DBPedia ontology.

1 aJadhav, Ashutosh1 aWang, Wenbo1 aMutharaju, Raghava1 aAnantharam, Pramod1 aNguyen, Vinh1 aSheth, Amit1 aGomadam, Karthik1 aNagarajan, Meenakshi1 aRanabahu, Ajith uhttps://daselab.cs.ksu.edu/publications/twitris-socially-influenced-browsing