It takes us a year to learn the market and develop a successful rate structure, then to integrate that into algorithms that we use to adjust pricing on the fly.

They just aggregate it and sell it to you, often adding in algorithms to infer certain characteristics, such as equity % or owner age. 

Only 6 units so far but it's working well enough (but I could also see how managing remotely could be very bad as there are enough headaches managing locally).Interesting note, I think Airbnb's algorithms look for bots/scammers, and I think my behavior of polling a bunch of landlords was identified as spam, so they perma-banned me.

I've been told from an agent the algorithm the site uses for the estimate can be pretty far off..  

Using some sort of algorithm it will notify me when it thinks the perfect time to follow up with a lead based on what they are doing on the site. 

The cool thing about Meetup is that the website's algorithm suggests your group to other buyers you normally wouldn't come across-along with many other very interesting & valuable people in your local area.  

The purchase price should hold for assessed value a couple of years at least, then it begins to shift based on an algorithm of recent, local sales.

Http://www.zillow.com/zestimate/#accProgramming algorithms based on skewed data.

The reason the estimates are so off on Zillow comes down to a matter of data completeness, and the algorithms used to select the right combinations of proximity, date sold, features, financing method, etc.

Since we are owner-occupied we have a lot more leeway in being selective with our tenants; but just for fun and kind of to standardize what we felt made a good tenant we created this algorithm.