Social Media Research Blog

Geolocating blogs

A quick note:

Clay Finkand colleagues from UMBC have a new paper on "Geolocating Blogs From Their Textual Content". From the abstract:

"Mashups showing the geographic location of the authors of social media content are popular. They generally depend on the authors reporting their own location. For blogs, auto-mated geolocation strategies using IP address and domain name are not adequate for determining an author’s location. Instead, we detail textual geolocation techniques suitable for tagging social media data, facilitating development of geo-graphic mashups and spatial reasoning tools."

As noted in this paper, trying to geolocate blogs from IP addresses or domain names does not work well due to many blogs mapping to various hosting services. To locate the named entities that refer to a potential location, the authors use GeoNames (This is a really great, free resource for those working with geographical analysis). The location of the blogger is disambiguated by clustering occurances of different geographical named entities in a region. From the paper:

For example, if “Maryland” has already been disambiguated as the U.S. state of Maryland, then the text “Laurel, Maryland” leads us to disambiguate “Laurel” as Laurel, Maryland.

Location is an important element in social media analysis and any results (for example, sentiment analysis or trends) that could be pivoted on this dimension are especially useful in providing an insight into what people in different regions think about a particular topic.

In context of this work, there are a few more related papers (in addition to references in this paper) one might want to check out. Although these papers dont address the same issue, they are interesting from the perspective of location analysis:

• Recent study of "Iran's online public" by Harvard researchers.
• "Spatial variation in search queries" by Backstrom et al.
• A study of blog commentsof persian bloggers by Noor Ali Hasan
• In our work with twitter analysis, we did some basic mapping of location names mentioned in user profiles to lat/long coordinates using Yahoo API.

Community-Driven Moderation in Twitter

Twitter played an important role during the mumbai terrorist attacks. The community that formed around the #mumbai tag, actively discussed how they felt and provided live, uptodate information filtered from different news sources. This was a tipping point for twitter that transforms it from a social tool to a news source. The most important factor here was that the dynamic community that emerged around the #mumbai tag was not constrained to discuss one single topic. Something that News sources struggled with as the developments happened so quickly in this critical event. Most news sources need to stay on a story for at least a few minutes before they can move on to another story.

As #mumbai became popular, trolls showed up on twitter and posted messages with the hashtag only to draw attention to their website or link to other sources of little or no relevance whatsoever to the current crisis. This made me wonder, what if anything could be done in Microblogging environments to restrict users from misusing hashtags. A quick glance over at the current use of #mumbai shows a number of such sources that should probably moderated. I am refraining from naming any particular users but this is something that could be better dealt with by the community as a whole.

One suggestion I have is to create a new hashtag like #ban followed by the user name and the hashtag for which the user should be banned. Once a particular user is #ban tagged by several people from the community -- Twitter can automatically ban the user from further posting on the specific topic. This would be a simple and effective means for a community driven moderation in twitter.

Life in Seattle

NO, I haven't forgotten about this blog....just that moving out of school, settling in a new city and a new job has kept me busy all this while. I did manage to spend some time back home which is always the best thing ever. I am in Seattle now and absolutely love it here. Although it has just been a few weeks working at Live Labs, Microsoft is fantastic! There is a ton of cool stuff happening here and I am learning something new everyday, interacting with some amazing folks and admiring the fact that there is so much happening here!

I have also been able to take a step back and think about how I would like to share my thoughts on this blog. It is great that there is a good deal of freedom at Microsoft regarding blogging. But with that is also a responsibility and a disclaimer that I must emphasize: "Any thoughts expressed here are my own and do not reflect those of my employer or people who I work with."

I will soon be back to regular posting...