Fast Topic Matching

Brave New Geek, Dec 30, 2016
Commentary by Stephen Downes

I've always had in mind the idea to allow OLDaily subscribers to pick the topics they're interested in, and send them only that. I haven't, for two reasons. This article addresses the first: actually makng it work for thousands of topics and/or thousands of subscribers is a bear. The obvious method - called the "naive hashmap" - takes too long to work (I've tried it). But there are certainly speedier solutions. But the second reason I haven't done it is even harder: I want OLDaily readers to be surprised. Nobody would have selected this topic, for example, but aren't you glad you learned about it? Via Vedalgo.

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