- Chris from MetaCarta showed off OpenLayers again (he showed it at Where2.0 too). It's impressive.
- Male-to-female ratio: roughly 6-1. (based on a sample size of about 70). That seems about the same as at Where2.0. (Mikey from Google told me yesterday that among Google's most important engineers, the ratio is like 200-1.
- The creator of ZAT talked about directions for his project. He intends for it to be a fully personalized travel guide. He talked about an idea called ratags. The word comes from rating and tag. They are a kind of mixture of categories and tags. Never thought I'd hear someone say "strongly-typed tags." Is that an oxymoron?
- Brandon Martin-Anderson talks about GraphServer, which creates travel itineraries and can be customized for any type of travel (car, bike, llama). He also talked at Where2.0. I liked his description of how the itinerary server improves on Dijkstra's algorithm. Dijkstra's algorithm usually weights paths by distance, but Graphserver can use a custom function to weight each path. The custom function can be used to weight uphill paths more than downhill (for bikes), and so on. Pretty cool.
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