Trending this week

I received an e - mail this morning that Blockchain 's topic shows a trend at this week' s Medium. This mail explains an interesting topic, "Unknown blockchain", which makes sense for me. Frankly, the block chain is everywhere, people talk about it, it is fashionable and revolutionary, blablabla. of course. But how many people actually have the ability to explain what the block chain is? Can you do it? In this article I will mainly describe two blocks of Don & Alex Tapscott 's Block Chain Revolution and William Mougayar' s Commercial Block Chain. I have to say that these two books are very different. But since they are written for different readers, I actually call them complementary. Very complementary

A simple example is Foursquare's "Trend of the Week". Is there any data that can objectively convey whether this venue should be a trend this week? No Instead, there is data showing sites visited by Foursquare users during the week - patterns of these data created places where they tend to be trendy. Note that this is different from whether the user thinks the output of the algorithm is correct ("What is the tendency of McDonald?"). You give an example of an algorithm for spam; each sample email is marked as spam. Then give me a new message, you ask the algorithm: is this spam? The purpose of the algorithm is to minimize errors. If the algorithm displays "yes" please push the email to the user's spam box.

Gizmodo last week reported on the internal plot behind the latest Facebook section. This also caused political controversy. Although the story was originally proposed by the algorithm, Gizmodo discovered that the list of trend topics was actually curated by humans. This week, the site reported details through interviews with opposing exhibitors. In particular, a seemingly conservative view was ignored in the final list.