Gojiberries (Page 15)

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Searching for Great Conversations

“When was the last time you had a great conversation? A conversation that wasn’t just two intersecting monologues, but when you overheard yourself saying things you never knew you knew, that you heard yourself receiving from somebody words that found places within you that you thought you had lost,

Siamese Networks for Record Linkage

For the uninitiated: A siamese neural network consists of twin networks which accept distinct inputs but are joined by an energy function at the top. This function computes some metric between the highest level feature representation on each side. The parameters between the twin networks are tied. Weight tying guarantees

The Risk of Misunderstanding Risk

Women who participate in breast cancer screening from 50 to 69 live on average 12 more days. This is the best case scenario. Gerd has more such compelling numbers in his book, Calculated Risks. Gerd shares such numbers to launch a front on assault on the misunderstanding of risk. His

What's Best? Comparing Model Outputs

Let’s assume that you have a large portfolio of messages: n messages of k types. And say that there are n models, built by different teams, that estimate how relevant each message is to the user on a particular surface at a particular time. How would you rank order

Expertise as a Service

The best thing you can say about Prediction Machines, a new book by a trio of economists, is that it is not barren. Most of the green patches you see are about the obvious: the big gain from ML is our ability to predict better, and better predictions will change

5 is smaller than 1.9!

“In the late 1990s, the leading methods caught about 80 percent of fraudulent transactions. These rates improved to 90–95 percent in 2000 and to 98–99.9 percent today. That last jump is a result of machine learning; the change from 98 percent to 99.9 percent has been

Disgusting

Vegetarians turn at the thought of eating the meat of a cow that has died from a heart attack. The disgust that vegetarians experience is not principled. Nor is the greater opposition to homosexuality that people espouse when they are exposed to foul smell. Haidt uses similar such provocative examples

The Best We Can Do is Responsibly Answer the Questions that Life Asks of Us

Faced with mass murder, it is hard to escape the conclusion that life has no meaning. For how could it be that life has meaning when lives matter so little? As a German Jew in a concentration camp, Victor Frankl had to confront that question. In Man’s Search for

Ruined by Google

Information on tap is a boon. But if it means that the only thing we will end up knowing—have in your heads—is where to go to find the information, it may also be a bane. Accessible stored cognitions are vital. They allow us to verify and contextualize new

The Benefit of Targeting

What is the benefit of targeting? Why (and when) do we need experiments to estimate the benefits of targeting? And what is the right baseline to compare against? I start with a business casual explanation, using examples to illustrate some of the issues at hand. Later in the note, I