>From user perspective, it's useful if a trending app can pick up new hot topics as they are emerging, particularly for the rather distinct events like airline accident. this is one of the main design principles I have for my twitter digest app. now, whether a new topic should be considered as trending topic may vary a lot among the various trending applications, which depends on detection sensitivity and policy. I'm sure Twitter guys spotted the airline accident, but it did not make it to the top 10 list. At google trends, the signal may be too low to be detected because they are dealing with much larger volumes.
I'm just trying to understand the difference between different services by looking at some real cases. another good case study is today's recall of sour dough. as shown on the daily new topics on http://web2express.org, it emerged out at 8:40am shortly after AP reported the news. I consider it a new trending topic interesting to consumers. but, it does not make it to Twitter.com top 10 topics. It did show up on google trends today. -aj On Fri, Jun 19, 2009 at 11:51 AM, David Fisher <[email protected]> wrote: > > Topics don't just trend because its something 'important'. Now if it > was of significantly larger volume than another topics (like the > iphone's launch today), then that is rather interesting, but from what > I can tell its mostly the most popular things floating to the top > generally, plus some spam-filtering. I haven't figured out the > exacting mechanisim for when something hits trending, but its not > rocket science either. > > Maybe I'm missing your point > > -...@tibbon > > On Jun 19, 2:35 am, Bjoern <[email protected]> wrote: > > On Jun 19, 7:00 am, AJ <[email protected]> wrote: > > > > > This case study shows the difference between various trending > > > applications. A good real time semantic analysis is the key that makes > > > the difference, I think. > > > > Maybe I misunderstood, but isn't the more likely explanation that the > > topic simply wasn't trending? > > > > Björn > -- AJ Chen, PhD Co-Chair, Semantic Web SIG, sdforum.org http://web2express.org Palo Alto, CA
