Interview with David Shelly

David is an amazing person: he has published 5 papers in Nature and 1 in Science, two of which were published this year. Check out what he says in Peaya interview (click the photo below).
Xu Cui
9 sec read

gmail is getting smarter

I noticed that gmail will remind you if you have something like “… is attached” in the email body but actually you don’t attach any files. This is very considerate.
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6 sec read

Meaning of correlation coefficient

If variable X and Y has correlation 0.1, how much does it help to predict Y based on X? In the simplest binary case, the probability (p) to correctly predict Y based on X is a linear function of correlation (c), i.e. $$p=\frac{c+1}{2}$$ That means, a
Xu Cui
14 sec read

Octopus Paul, hypothesis, p-Value and significance

Null hypothesis (H0): Octopus Paul doesn’t have the ability to predict. Or, the probability that he predicts correctly on each event is 1/2. Data: In 2010 World Cup, Octopus Paul correctly predicted the outcomes of 8 games out of 8 games. p-Val
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16 sec read

Peaya officially launches

The goal of Peaya  is to make your academic life more fun and more productive. Peaya Comics Comic strips about our academia life – the excitement, joy, depression, and pain.  We hope the strips will make you smile. Below is the latest comics: Peaya P
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29 sec read