Limits...
Real-time analysis application for identifying bursty local areas related to emergency topics.

Sakai T, Tamura K - Springerplus (2015)

Bottom Line: Many researchers have been tackling the development of new data mining techniques for georeferenced documents to identify and analyze emergency topics, such as natural disasters, weather, diseases, and other incidents.In particular, the utilization of geotagged tweets to identify and analyze natural disasters has received much attention from administrative agencies recently because some case studies have achieved compelling results.Moreover, we have implemented two types of application interface: a Web application interface and an android application interface.

View Article: PubMed Central - PubMed

Affiliation: Graduate School of Information Sciences, Hiroshima City University, 3-4-1, Ozuka-Higashi, Asa-Minami-Ku, 731-3194 Hiroshima Japan.

ABSTRACT
Since social media started getting more attention from users on the Internet, social media has been one of the most important information source in the world. Especially, with the increasing popularity of social media, data posted on social media sites are rapidly becoming collective intelligence, which is a term used to refer to new media that is displacing traditional media. In this paper, we focus on geotagged tweets on the Twitter site. These geotagged tweets are referred to as georeferenced documents because they include not only a short text message, but also the documents' posting time and location. Many researchers have been tackling the development of new data mining techniques for georeferenced documents to identify and analyze emergency topics, such as natural disasters, weather, diseases, and other incidents. In particular, the utilization of geotagged tweets to identify and analyze natural disasters has received much attention from administrative agencies recently because some case studies have achieved compelling results. In this paper, we propose a novel real-time analysis application for identifying bursty local areas related to emergency topics. The aim of our new application is to provide new platforms that can identify and analyze the localities of emergency topics. The proposed application is composed of three core computational intelligence techniques: the Naive Bayes classifier technique, the spatiotemporal clustering technique, and the burst detection technique. Moreover, we have implemented two types of application interface: a Web application interface and an android application interface. To evaluate the proposed application, we have implemented a real-time weather observation system embedded the proposed application. we used actual crawling geotagged tweets posted on the Twitter site. The weather observation system successfully detected bursty local areas related to observed emergency weather topics.

No MeSH data available.


Definition 1 in the right-hand side of Figure 1, there are three documents, N(ε,τ)(gdp)={gd2,gd3,gd4}.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
getmorefigures.php?uid=PMC4402682&req=5

Fig1: Definition 1 in the right-hand side of Figure 1, there are three documents, N(ε,τ)(gdp)={gd2,gd3,gd4}.

Mentions: Figure 1 shows an example of an (ε,τ)-density-based neighborhood. In DBSCAN, the neighborhood of document gdp is a set of documents that exist within ε from gdp. In the left-hand side of Figure 1, there are four documents in the neighborhood of gdp. Conversely, the (ε,τ)-density-based neighborhood of gdp is a set of documents that exist within ε from gdp, where each document in the (ε,τ)-density-based neighborhood is posted in τ before or after the posted time of document gdp. The right-hand side of Figure 1 shows the example of the (ε,τ)-density-based neighborhood. In this example, there are three documents, N(ε,τ)(gdp)={gd2,gd3,gd4}. Document gd1 is within ε from document gdp; however, it is not in N(ε,τ)(gdp), because it is not posted in τ before or after the posted time of document gdp.Figure 1


Real-time analysis application for identifying bursty local areas related to emergency topics.

Sakai T, Tamura K - Springerplus (2015)

Definition 1 in the right-hand side of Figure 1, there are three documents, N(ε,τ)(gdp)={gd2,gd3,gd4}.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4402682&req=5

Fig1: Definition 1 in the right-hand side of Figure 1, there are three documents, N(ε,τ)(gdp)={gd2,gd3,gd4}.
Mentions: Figure 1 shows an example of an (ε,τ)-density-based neighborhood. In DBSCAN, the neighborhood of document gdp is a set of documents that exist within ε from gdp. In the left-hand side of Figure 1, there are four documents in the neighborhood of gdp. Conversely, the (ε,τ)-density-based neighborhood of gdp is a set of documents that exist within ε from gdp, where each document in the (ε,τ)-density-based neighborhood is posted in τ before or after the posted time of document gdp. The right-hand side of Figure 1 shows the example of the (ε,τ)-density-based neighborhood. In this example, there are three documents, N(ε,τ)(gdp)={gd2,gd3,gd4}. Document gd1 is within ε from document gdp; however, it is not in N(ε,τ)(gdp), because it is not posted in τ before or after the posted time of document gdp.Figure 1

Bottom Line: Many researchers have been tackling the development of new data mining techniques for georeferenced documents to identify and analyze emergency topics, such as natural disasters, weather, diseases, and other incidents.In particular, the utilization of geotagged tweets to identify and analyze natural disasters has received much attention from administrative agencies recently because some case studies have achieved compelling results.Moreover, we have implemented two types of application interface: a Web application interface and an android application interface.

View Article: PubMed Central - PubMed

Affiliation: Graduate School of Information Sciences, Hiroshima City University, 3-4-1, Ozuka-Higashi, Asa-Minami-Ku, 731-3194 Hiroshima Japan.

ABSTRACT
Since social media started getting more attention from users on the Internet, social media has been one of the most important information source in the world. Especially, with the increasing popularity of social media, data posted on social media sites are rapidly becoming collective intelligence, which is a term used to refer to new media that is displacing traditional media. In this paper, we focus on geotagged tweets on the Twitter site. These geotagged tweets are referred to as georeferenced documents because they include not only a short text message, but also the documents' posting time and location. Many researchers have been tackling the development of new data mining techniques for georeferenced documents to identify and analyze emergency topics, such as natural disasters, weather, diseases, and other incidents. In particular, the utilization of geotagged tweets to identify and analyze natural disasters has received much attention from administrative agencies recently because some case studies have achieved compelling results. In this paper, we propose a novel real-time analysis application for identifying bursty local areas related to emergency topics. The aim of our new application is to provide new platforms that can identify and analyze the localities of emergency topics. The proposed application is composed of three core computational intelligence techniques: the Naive Bayes classifier technique, the spatiotemporal clustering technique, and the burst detection technique. Moreover, we have implemented two types of application interface: a Web application interface and an android application interface. To evaluate the proposed application, we have implemented a real-time weather observation system embedded the proposed application. we used actual crawling geotagged tweets posted on the Twitter site. The weather observation system successfully detected bursty local areas related to observed emergency weather topics.

No MeSH data available.