Ask HN: Realtime app ideas for side project?
What are some ideas for apps that could be built to become more conversant with near-realtime technologies à la Storm, Kafka, Spark Streaming and the like?
Let's define realtime not as financial index realtime but as responding very quickly to a potentially large number of input events which will be coming in over a network.
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If you're just looking for ideas, I would look at what people have done for conference talks, sometimes they have good project ideas - https://www.findlectures.com/?q=%20realtime&p=2&class1=Technology
I got this idea of using my twitter follower graph and extracting out entities like movies, restaurants, books and people they talk about.
I have noticed that I end up eating at places, go to coffee shops, read book and watch movies/shows people I follow talk about. If there was a simpler way to browse that, it might be useful.
A social network for people drinking the same beverage right now.
You could have rooms for particular regional coffees or more simple like hot chocolate or commercialized like one for Budweiser.
There could be content you unlock by proving you're drinking a certain drink.
Real-time anomaly detection (http://numenta.org) for airplane flight routes, wearable sensor data (heart rate), energy smart meter readings, seismometers for early earthquake warnings, ...
It's best to learn what real-time actually means in the context of technology. None of the above technologies are real-time. Near-real time might be more accurate but it depends on your tolerance.