mattj

5 ms·

1.
by mattj 2y ago
Good news: this isn't true - https://waymo.com/blog/2024/05/fleet-response/
2.
by mattj 3y ago
I've built one of these based on the instructions and use it daily (and love it!), but the tone of the site is pretty reflective of the project overall. It's definitely a really impressive hack and I appreciate all the hard work t
3.
by mattj 6y ago
I think the grandparent is probably referring to upstate in the Hudson Valley sense of the phrase. Plenty of cute towns, but Hudson / Woodstock / Kingston are definitely in the O(tens) of great restaurant options, comparable to a
4.
by mattj 9y ago
The other answers cover the math well, but I think the “why do you need attention?” statement is worth making (and answers the more engineering-y question of “how/when?”): DNNs typically operate on fixed-size tensors (often with a vari
5.
by mattj 9y ago
This is great - the like / heart button is really slick, and I love how it doesn't get in the way at all. I've used pinboard and others in the past, and the (relatively) heavier bookmarking flow would often stop me from savin
6.
by mattj 10y ago
I agree with you (and love your blog, btw), but I think you're skipping over at least a few benefits you can get out of a mature / well built a/b framework that are hard to build into a bandit approach. The biggest one I&#x27
7.
by mattj 10y ago
I think the change here is they're learning the embeddings alongside the feature weights (eg they're part of the same loss function).
8.
by mattj 10y ago
This kind of language is very standard. The risks section pretty much always contains obvious platitudes ("An earthquake might destroy all our computers," "All our employees may quit").
9.
by mattj 11y ago
Similar experience, but I focused on finding UI elements I liked from native apps or websites and attempted to clone them without looking at the source, then played around with the result to figure out how I could simplify it, how it behave
10.
by mattj 11y ago
heads up, your math is a little buggy - 1% of $90b is $900m, not $90m
11.
by mattj 12y ago
What does this do? I've browsed through the site for a few minutes, and still have no idea what kind of tools you could build with this that you couldn't build before. Is this for cross-language doc generation? Refactoring tools?
12.
by mattj 12y ago
These are both good points. I think it's worth calling out here that this post is really about the infrastructure to perform experiments, not necessarily the means of analysis (although the ui you see in the screenshots performs that a
13.
by mattj 12y ago
A teammate of mine wrote a post about our redshift setup a few months ago with some more details: http://engineering.pinterest.com/post/75186894499/powering-i...
14.
by mattj 12y ago
Yup! My experience with redshift has actually made me curious to try out Postgres (I've always used MySQL before this). The stricter SQL dialect was a little odd at first, but I think I've become more comfortable with it over a fe
15.
by mattj 12y ago
I've gone through a similar transition (hive to redshift) in a very large scale data environment. Raw Hadoop / cascading is still very useful for more complicated workflows, but redshift is so vastly superior to hive it's not
16.
by mattj 13y ago
The AI winter is very much over, and we're back to the good old days of selling the future. I bet this team is very sharp, but there's still merit to "over-promise, under-deliver." "Phoenix, the co-founder, says Vic
17.
by mattj 13y ago
I've been hearing good stuff about this for a while - it's awesome to see it open sourced! Setting up a local haproxy to handle service failover / discovery is a really clever solution, and is an awesome approach to encapsula
18.
by mattj 13y ago
This is cool, but probably the biggest appeal of docker to me is never having to use puppet again.
19.
by mattj 13y ago
(original author of mrjob here) Steve's post is 100% correct. I originally wrote mrjob as an internal tool at yelp out of my frustration with using dumbo for multi-step jobs. Specifically, I found myself writing the same incantation of
20.
by mattj 13y ago
If they can't afford to pay a market salary, you should be getting at least 0.5% (and probably more like 1%). Still not life changing at 40mm with no dilution (200-400k), but a little more meaningful.
21.
by mattj 13y ago
Considering that they're trying to sell to every business in the US, 3 years actually seems like a very long time.
22.
by mattj 13y ago
Note this is exactly how a smart spammer would generate text (sampling from a language model, built on a public ally available data set like google ngrams or Wikipedia). If you wanted to catch someone doing this, you're much better off usin
23.
by mattj 13y ago
This is very similar to the hashing trick used in vowpal wabbit ( http://hunch.net/~vw/ ). I haven't used this python module, but vw is absolutely incredible to use.
24.
by mattj 14y ago
So the issue here is two-fold: - It's very hard to do 'intelligent routing' at scale. - Random routing plays poorly with request times with a really bad tail (median is 50ms, 99th is 3 seconds) The solution here is to figure out why your 99
25.
by mattj 14y ago
One big issue here (solvable, but something to think about): this would make messages a source for money laundering, which I'd bet fb would like to avoid. Then again, they already deal with this with fb credits, so maybe this wouldn't be to
26.
by mattj 14y ago
I think there's a very non-trivial chance the person who wrote this article knows much more about advertising than you think: http://www.hilarymason.com/about/
27.
by mattj 14y ago
I really wish there was a ruby motion demo. I'd be fine with all kinds of restrictions (no iPad, simulator-only, whatever), I'd just really like to try it out before I take the leap. Background: I wrote an iPhone app back in the dark days (
28.
by mattj 14y ago
I think this neglects a performance consideration: dynamic programming is often simpler for a compiler to optimize, since it's generally a set of nested loops. Sometimes you can vectorize operations, but often you can just exploit locality
29.
by mattj 14y ago
First off, I really, really like pypy. It's been slowly taking over my data-massaging-type tasks, and consistently yields 5-10x speedups over cpython. That being said, I'm a little nervous about all the energy being exerted on novel multico
30.
by mattj 14y ago
This is actually pretty straightforward to overcome (and one of the real strengths of the bayesian approach). Rather than using the direct counts of success for each group, add a prior belief that americans will favor baseball and non-ameri

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