Once again, the graph is normalized such that the average search traffic for ‘stochastic programming’ is 1.00.
There is no traffic before October 2006! I am surprised (and disappointed). Along with periods of non-activity, there seems to be a decrease in the number of searches until about mid-2008. After this point, it seems fairly stable.
What really surprised me was the region listing. Take a look:
The data is again scaled such that the highest number is represented as 1.0. Looking at this graph it is impossible not to wonder how come the searches on ‘stochastic programming’ from the US is much lower than from Iran?
According to Google:
To rank the top regions, cities, or languages, Google Trends first looks at a sample of all Google searches to determine the areas or languages from which we received the most searches for your first term. Then, for those top cities, Google Trends calculates the ratio of searches for your term coming from each city divided by total Google searches coming from the same city.
Looks like among all the searches originating from the US (or, Singapore or Iran), that is an estimate of the fraction of searches that are on ‘stochastic programming’. We can get a better idea of relative interest in this term across countries from the web traffic statistics of www.stoprog.org -the official stochastic programming community home page. (This is also the first link that comes up on a Google search on ‘stochastic programming’ after some ads.) The measurements on stoprog.org are taken since 11 May 2002.
The fraction of visitors to stoprog.org from the US is highest (35.60%). The second highest is UK, at about 6% and number 10 on the list is Spain (1.8%). Approximately 1/3 of all visitors to the site (33.10% to be exact) are outside of these top-10 countries, combined all together as “The rest” in the graph.