Live data from Hacker News

Amazon’s own ‘Machine Learning University’ now available to all developers

aws.amazon.com

51–60 of 109 posts

Re: Amazon’s own ‘Machine Learning University’ now available to all developers

#51
post #13

Ugh, no choice to speed up the videos to 1.5x.

Try this: https://twitter.com/simonw/status/1047257214052794368

Bookmarklet for fixed multiplier:

javascript:void%20function(){document.querySelector(%22video%22).playbackRate=1.7}();

Bookmarklet for variable multiplier:

javascript:void%20function(){document.querySelector(%22video%22).playbackRate=parseFloat(prompt(%22Set%20the%20playback%20rate%22))}();

Re: Amazon’s own ‘Machine Learning University’ now available to all developers

#52
post #39

Earlier quoted context omitted.

I know this is a joke, but you're a magnitude more likely to buy something if you've already bought it once. The whole retargeting industry is built on this, but I agree - it doesn't necessarily make it useful.

Depends on the something. If I buy a carton of milk, I'm pretty likely to buy another before too long. If I buy a new refrigerator, probably not. Besides, the point of advertising is to get you to buy things you otherwise wouldn't. It would be pretty pointless to show me an ad that says "you love eggs, you eat them for breakfast every day, so buy some next time you're at the supermarket", because I was going to do th…

Well of course there are outlier product categories which are not repeat purchases, like engagement rings, funeral caskets, refridgerators, etc. That goes without saying, and if someone is paying to retarget those they're probably wasting their budget.

Re: Amazon’s own ‘Machine Learning University’ now available to all developers

#53
post #30

Earlier quoted context omitted.

That's not true, putting a product I've already ordered on my recommended list instead of something i actually want to buy is costing them money in lost sales.

Amazon also doesn't know if this is a single use or consumable item. Some things have significant marginal utility beyond 1, and others can be consumed and need to be reordered. (Charging cables, Amazon echo for multiple rooms, paper goods, etc.)

They should have a pretty good idea which items get reordered a lot and which don't. They've got plenty of data.

Re: Amazon’s own ‘Machine Learning University’ now available to all developers

#54
post #30

Earlier quoted context omitted.

That's not true, putting a product I've already ordered on my recommended list instead of something i actually want to buy is costing them money in lost sales.

Amazon also doesn't know if this is a single use or consumable item. Some things have significant marginal utility beyond 1, and others can be consumed and need to be reordered. (Charging cables, Amazon echo for multiple rooms, paper goods, etc.)

Yes, they do. Customer patterns on that product

Re: Amazon’s own ‘Machine Learning University’ now available to all developers

#55

Earlier quoted context omitted.

We can agree to disagree on that. The certs are useful if your business requires them for whatever reason but my standard take is any cert that doesn’t require hands on learning, such as RHCSA/RHCE/CKA/CCIE, tend to be a pointless exercise in reading comprehension. I say this as someone with several AWS certs.

What are some certs that you believe are worth investing in (i.e. ones that do require hands-on learning)?

Mentioned in initial comment (probably could have been more clear that those are the certs that require hands on learning):

RHCSA/RHCE/CKA/CCIE are the first ones that come to mind.

Re: Amazon’s own ‘Machine Learning University’ now available to all developers

#56
post #30

Earlier quoted context omitted.

That's not true, putting a product I've already ordered on my recommended list instead of something i actually want to buy is costing them money in lost sales.

Amazon also doesn't know if this is a single use or consumable item. Some things have significant marginal utility beyond 1, and others can be consumed and need to be reordered. (Charging cables, Amazon echo for multiple rooms, paper goods, etc.)

How often do I buy a HP Color LaserJet printer, versus toner cartridges for it? Or ink for another printer of which it has no evidence that I own)?

Yet I bought a color laser printer and my first two pages of recommendations are for other variations on the same ("Hey, you bought the wired MFP! Perhaps you want the wireless too! And I know it's a HP printer, but maybe I can suggest some Brother toner for you!").

Re: Amazon’s own ‘Machine Learning University’ now available to all developers

#57

I haven't had a lot of time to look at the offering, but can anybody tell me if these courses have any theory, or are they just for promoting specific AWS ML services without going into the underlying complexity?

There is a "Math for Machine Learning" course.

I just flipped through that course. It covers just vectors, matrices, probability, and derivatives. A better (and faster) resource is to use chapters 2-5 of Deep Learning by Goodfellow et al, but the mathematical detail in that book may be offputting for beginners.

Re: Amazon’s own ‘Machine Learning University’ now available to all developers

#60
post #30

Earlier quoted context omitted.

It's worth pointing out that this recommendation behavior is only unintelligent if it has a downside, i.e. reduces Amazon's profits. Companies (and their AIs) only care about your business transactions, not whether you're annoyed. I'm sure Amazon engineering is well aware of the jokes about their recommendation engines. But their recommendation engines are not calibrated to reduce jokes, they are calibrated to increa…

That's not true, putting a product I've already ordered on my recommended list instead of something i actually want to buy is costing them money in lost sales.

From Amazon's perspective, it doesn't have to work for you; it has to work on average.
Post reply on HN