Viewing profile — alexbeloi

Fun fact, they can sometimes narrow down crime scene DNA to just a single person by having enough partial matches from their (potentially distant) relatives. I can't remember which…

Seems like a steep price but I can see this becoming a marketable skill at some point. It feels similar to knowing how to google well, we've all internalized some google/search con…

They aren't mutually exclusive, but their incentives are opposed, usually the incentives bringing in the money win.

> What's the best way to prepare for DP in interviews? Do 100 of these problems: https://leetcode.com/tag/dynamic-programming/

It doesn't punish anyone. If you want solutions, then the book is not for you, that's all. The author is not obligated to accommodate every audience, or even a majority audience.

I was oversimplifying, but I stand by my words. It does optimize for profit, just with extra steps. For most FB ads products (that you see in feed), advertisers pay based on conver…

Ads optimizes for profit, all other content is broadly optimized for meaningful social interaction and against problematic content . https://www.facebook.com/business/news/news-fee…

Machine Learning is a catch-all term for optimizing statistical models with data. Simplest example that you are very likely already familiar with is that of a 'best fit line' to so…

You'll likely be happy to hear that this has been (is being) addressed. I watched the live broadcast of this announcement where they did a recap of all 10 previous matches (against…

Movies are filmed at 27fps so the reasoning is humans have high confidence that they aren't missing any significant information between the frames, it should possible to make a 'me…

If by "do that" you mean mimic what a real driver would do for a specific set of sensor inputs, that is precisely ML tries to do. To understand what the difficulty is, it's importa…

The issues I've heard from a few people in hiring is that there is a surplus of junior data scientists from these camps and a shortage of senior data scientists to manage them. Pro…

It seems to me that Netflix used to have better recommendations. It's unclear why/how/when it went bad, my suspicion is that they changed their metric and it's having bad side effe…

That is actually one of the biggest contributing factors to the replication crisis in science, lots of scientists have been making this error for decades. Very not obvious.

The valedictorian is an 'executor', and likely very good at that crushing tasks to get the job done. The self-starter is creative and malleable and likely very good at complex prob…

IQ scores are also increasing[0]. Are we actually smarter than our grandparents? Or has the education system trained us to be better test takers (one of the suggested contributing …

The relevant metrics would be daily/monthly active useres (DAU/MAU) and churn rate. But Blizzard doesn't report those number's unless they're good (e.g. Hearhstone/Overwatch hittin…

A great blog post here ( https://wp.josh.com/2017/10/23/adventures-in-autorouting/ ) about some different auto-routing software.

Not eli5, but a comparison to the Riemann Hypothesis (RH). RH says the Riemann-zeta function has no zeros along the line (1/2) + iy in the complex plane. The Lindelof hypothesis sa…

> Not completely failing to find files and apps based on how I typed them (“A” brings up “abc” but typing “ab” makes “abc” go away!?). It's the 'basic' stuff like this and bizarre …

Very cool, I'm a fan of his stuff and hadn't seen that one yet. Thanks

These seems like a interesting model for analyzing which population structures are most conducive to the spread of memes or ideas. The obvious population structures are 'highly con…

Yes they do/have research. Facebook had 12 papers at the last computer vision conference I attended (CVPR '17) and won the awards for best paper and best student paper.

My naive take on this is that it makes biologically sense to keep net expected electrical impulses approximately the same before and after strengthening. At the end of the day the …

It has little to do with culture and everything to do with current economic stage of development, Japan was known for making faulty mass produced garbage in the 50's and 60's, they…