Ojisan Seiuchi

One of the most striking features of the GOP front-runner is his special fondness for conspiracy theories. From the (non-existent) connection between vaccines and autism to the “real culprits” behind 9/11, he shows the typical clustered endorsement of multiple conspiracy theories.

The question about whether this a form of pandering or a genuinely held set of perspectives is interesting, though barely relevant. In the former case, the abandonment of reason to achieve a political goal is an egregious fault. In the latter case, it sheds considerable light on crucial decision-making capacities. Endorsement of conspiracy theories requires a set of cognitive biases that fundamentally hobble evidence-based decision making.

The spread of anger in social networks and its implications for political violence

March 13, 2016

Technology

An ingenious study using the massive Weibo network revealed insights into the spread of certain emotions through social networks. Weibo is a social network platform not unlike Twitter. It is also hugely popular in China with millions of users making it an ideal platform for understanding how emotional states between socially-connected users correlate with each other.

But the highest correlation by far was among angry users. Rui and co say anger strongly influences the neighbourhood in which it appears, spreading on average by about 3 hops or degrees. “Anger has a surprisingly higher correlation than other emotions,” they say.

In the figure above, anger is depicted in red, and shows a greater pervasiveness than joy, sadness, and disgust. The study quantitatively looked at the correlation of emotion across the network and found that of all the emotions studied, anger showed the greatest diffusion.

Undoubtedly this mirrors the infectiousness of hate among like-minded people on other social network platforms and in the “real world.” The potential for each person to become a node in a network of anger and hate is what is frightening about the violent political spectacle that has come to characterize the U.S. presidential campaign of Donald J. Trump. Anyone who carefully listens to his rhetoric and its results cannot help but see the similarities to that of pre-WWII fascists. Furthermore, anyone who thinks that humans have fundamentally evolved in less than 100 years is mistaken. The latent potential for large numbers of people to do harm to under-represented scapegoats is still there.

This is a bad situation.

Speaking of Anki, here’s a Swiss Army knife of database utilities that provides searching, moving and renaming functions from the command line.

On GitHub.

You can do things like this to rename and collect tags:

$ anki_tool mv_tags '(dinosaur|mammal)' animal

Looks cool.

[N.B. 2016-03-26 Nathan Ifill pointed out that it is possible to use Anki’s built-in conditional replacement feature to do what I’m illustrating. I’ll have to work on another example!]

Anki is a widely-used flashcard application. If you’re learning a foreign language and you’re not using Anki, you should be.

If you are using Anki and are picky about the appearance of the cards, you should know that JavaScript can be used in the card template. This opens up a number of possibilities for dynamic cards. I’m just touching on the technique here.

Memorization has a bad reputation in education today, but it underpins the abilities of all sorts of high-performing people. I often refer to this article from 1999 about how to better organize information for memorization.

My favorite pieces of advice:

Do not learn (memorize) if you do not understand.
Stick to the minimum information principle.
Use imagery
Avoid sets and enumerations
Use mnemonic techniques.

I’m reluctant about using Facebook. Recently I returned after a 5 year sabbatical. It seems about the same as it was when I left. But I had never really used Facebook groups before. So when a friend launched a group around a topic of interest to me, I joined enthusiastically. While watching the numbers grow quickly in the first few days, I realized what a difficult platform it is for having any kind of meaningful discussion.

How to identify Russian letters in a string? The short answer is: [А-Яа-яЁё] but depending on your regex flavor, [\p{Cyrillic}] might work. What in the word does this regex mean? It’s just like [A-Za-z] with a twist. The Ёё at the end adds support for ё (“yo”) which is in the Latin group of characters.

See this question on Stack Overflow.

It was recently reported in the Washington Post that the late Supreme Court Associate Justice Antonin Scalia had ties to a secret society of hunters called the International Order of St. Hubertus and that several of the guests at the Texas ranch where Scalia died were members of this group.

Surely I’m not the only one that finds this a bit weird. A secret society of hunters? I don’t know the first thing about hunting but from I’ve seen, the only thing secret about hunting is sneaking up on an animal so you can kill it.

Years ago, my wife and I stayed overnight in Seoul on the way home from New Zealand. An amazing array of types of kimchi accompanied breakfast the following morning; and from then on, I was hooked on this Korean staple. For the last few years, I’ve gradually honed my kimchi-making skills. For simplicity, I tend to make mak-kimchi which means “roughly made kimchi.” In traditional kimchi, who cabbages are fermented intact (though usually split in half to permit the salt and later, spices to enter between the leaves.) However, getting the cabbages properly salted it very tricky and often neglected. So instead of making the more traditional kimchi, I’ve specialized in mak-kimchi. The main difference is in the way that the cabbages are handled. In this case, the cabbages are slided into approximately bite-sized pieces then salted, wilted, rinsed, mixed with the spices and allowed to ferment.

In my never-ending journey to find the optimal blogging platform, I wandered into the hexo camp. Among its many attributes is speed. Compared to Octopress, site generation is very fast. However, deployment has been tricky. Since I host my blogs from an Amazon S3 bucket, I tried to use the aws deployer commonly used with hexo; but I could never get it to install properly on OS X 10.11. So I wrote my own deployer that essentially just runs an AppleScript that handles the synchronization task. It is very slow. So I’m always on the lookout for faster deployment schemes. It looks like a Grunt-based system is the ticket.

Trump, the conspiracy theorist

The spread of anger in social networks and its implications for political violence

Network emotions

anki_tool: low level manipulation of Anki databases

JavaScript in Anki cards

Organizing knowledge for memorization

Observation: Facebook groups don't work

Detecting Russian letters with regex

Scalia and the secret society

Mak-kimchi 막김치

Automate hexo blogging tasks with Grunt