birken

67 ms·

571.
by birken 14y ago
The problem with this math is that the difference in the scores on Friday are already pretty significant ( http://www.thumbtack.com/labs/abba/#A=60%2C500&B=40%2C50... ) Here is the absurd case. The conversion rate is 10% on Friday and
572.
by birken 14y ago
This blog post misses to me what is the most important difference: If you are not keeping consistent assignment ratios of users into experiment buckets, then you are implicitly making the assumption that no other factors other than your A/B
573.
by birken 14y ago
Isn't that the fault of the private investors for overvaluing Facebook? Presumably all granted options had a strike based based on the current private valuation, which clearly the public market doesn't agree with (without judgement as to w
574.
by birken 14y ago
We noticed this back in October: http://www.thumbtack.com/engineering/googlebot-makes-post-re... Googlebot not only executing javascript on the page but also making POST requests as a result of AJAX calls.
575.
Thumbtack Revamp Makes It Even Easier To Find A Service Provider(techcrunch.com)
5 points by birken 14y ago|0 comments
576.
by birken 15y ago
(I realize this was written 8 months ago and the addendum tries to take away the bite, but I'll comment nonetheless) I hate articles that make it seem like there is some magical cult of amazing engineers that have an untouchable and unattai
577.
by birken 15y ago
I would say we have a lot of evidence that great candidates enjoyed doing our challenges, but certainly it isn't for everybody. You are free to not do the challenges. As for your secondary point about the quality of our team, I encourage y
578.
by birken 15y ago
I spend quite a bit of time reviewing resumes, interviewing and hiring engineers, and I am not looking for specialists. If a candidate has an in depth knowledge of a particular subject, that is awesome, but completely optional. The requir
579.
by birken 15y ago
I really dislike articles like this, which state unproven thoughts as facts and useful advice. 1) Learning to code isn't hard? It is. But let's say you did learn some basic stuff and put up an MVP which is gaining traffic. You now need t
580.
by birken 15y ago
If you add a default value it locks the table and re-writes it. However, if you don't add a default value postgres will perform the operation instantly. Old rows will be untouched, and new values will be added with the shoe_size of eithe
581.
Show HN: ABBA - Beautiful, open-source A/B test calculator(thumbtack.com)
51 points by birken 15y ago|7 comments
582.
PHP source code now hosted on Github(github.com)
138 points by birken 15y ago|14 comments
583.
InterviewStreet systems programming challenge: now going(systems.interviewstreet.com)
1 points by birken 15y ago|0 comments
584.
by birken 15y ago
Once or twice a week is completely fine. I work at Thumbtack (and have since the first meal!), and occasionally if I am in right in the middle of something or need a break I'll eat at my desk. It isn't a big deal, and I certainly don't ag
585.
by birken 15y ago
Well just for a contrasting data point: at the small SV startup I work for, I don't know of anybody who uses "performance enhancing" drugs [aside from caffeine, but in that case the majority of the working world would qualify] and I would h
586.
by birken 15y ago
A PHP array is in fact just an ordered hash-map (IE.. hash map with an associated linked list which tracks the iteration order). When you do an array append, the logic PHP runs is it tries to guess what the most logical key would be, add th
587.
by birken 15y ago
The only way this attack would have worked is if DigiNotar's private key, whose public key is included in the major CA whitelist in major browsers, signed the domain. So either they did it, or somebody stole their private key. Either way
588.
by birken 15y ago
This response is nothing more than political talking points, whereas Warren Buffett's article was a thoughtful and meaningful piece about a simple positive change the country could make to help control the deficit. I'm not saying some of h
589.
by birken 15y ago
I blame the public schools.
590.
by birken 15y ago
And how do you keep this consistent across different objects? IE object A and object B are updated at the same time, going from generation 1 to generation 2. I am on a remote machine reading from the cache. How can I ensure I don't get a
591.
by birken 15y ago
How do your distributed nodes figure out which is the most recent version of a particular object?
592.
by birken 15y ago
The people who do Google interviews do not spend any time looking at a candidates past work or blog or skills because that is not what Google engineers evaluate when it comes to hiring you. They are supposed to ask technical questions and
593.
by birken 15y ago
The voting results on the RFC page is from 2008 when it was rejected. The recent vote that decided its inclusion was here: https://wiki.php.net/todo/php54/vote . I think it had pretty solid support from core developers as well as userlan
594.
by birken 15y ago
This is a great post, however I think there is one caveat... NoSQL is a premature optimization for relational data . NoSQL isn't necessarily an optimization if your dataset is one that isn't relational, where you gain flexibility and get
595.
by birken 15y ago
If the crypto method being used is strong enough, then there is no need to obscure the authentication algorithm or the salted value. That just provides a little bit of security through obscurity, it doesn't actually harden the passwords an
596.
by birken 15y ago
First, it is pretty funny for this poster to use this as a reason why perl is a well thought out language. It like all languages has pros and cons, and picking one thing about perl that isn't even unique to perl isn't a good example of how
597.
by birken 15y ago
A lot of this advice is not very good, or at best is misleading. 1) Turning "enable_seqscan" off is almost never a good idea. If Postgres isn't using an index that you think it should, you should figure out the underlying reason why. This
598.
by birken 15y ago
Array brackets after function calls are fixed in PHP 5.4: ~/php_source/php-src-5.3$ ./sapi/cli/php -r "function a() { return array(1,2); } print a()[0];" Parse error: syntax error, unexpected '[' in Command line code on line 1 ~/php_source/
599.
by birken 15y ago
Why do you think they are ugly?
600.
by birken 15y ago
Sure is, and we do organize our 'use' statements the same way one would organize 'import' statements in a python file. However in this context again we felt that the convenience of just being able to throw these functions in place without h

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