Wanted to use it with Google Analytics for a kind of recommendation engine of the form "users that liked this page also liked...". But they never approved my request and a 60k request limit won't cut it either.
I'm using it in an app, since my request did get approved, but it's very rudimentary at the moment as I am still exploring it. I'll be sure to report back to HN at the point it is in full use.
To me a big weakness of the prediction API when I checked it out was that it cannot handle (i) missing values or (ii) sparse data formats. Both are very common in real life data.
... easy, benchmarking your own algos against the prediction API on large-scale data sets. I presume that's what 90% of the people who received their account during testing did anyway :-D I did 15k requests in about 10mins at times.
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[ 3.2 ms ] story [ 41.2 ms ] threadI guess it might change. Google App Engine is finally beginning to make sense, be it mainly for intranet applications.