joshhart

10 ms·

61.
by joshhart 9y ago
Also note that some languages like Java do not even support unsigned integers.
62.
by joshhart 10y ago
The mobile-web version of LinkedIn and the new website are built in Ember. We already use Glimmer 2.0 because we care about web performance. So we care deeply about many of the things you mentioned. Source: I'm the lead eng for our con
63.
by joshhart 10y ago
Cost of solar has gone down dramatically since Topaz was built. http://solarcellcentral.com/cost_page.html Module price per watt is about 50 cents right now IIRC and would have been something like $1.25 when Topaz was built
64.
by joshhart 10y ago
Not even cash flow positive. Stay away.
65.
by joshhart 10y ago
I've only dabbled in this area, so it's entirely possible my question doesn't make sense. Machine learning algos in general seems to have a bunch of iterative components, but within each iteration there is massive parallelism
66.
by joshhart 11y ago
Hi alanh, my personal opinion on this is that since Jeff Weiner assumed dual CEO and Chief Product Officer roles the company has done a much better job using both qualitative experience in conjunction with quantitative metrics when making d
67.
by joshhart 11y ago
Hi angelbob, the specific work you referenced was algorithmic in nature. Simply put, users that are less likely to interact with ads will see fewer on their feeds. I hope you will agree with me that it is a better experience.
68.
by joshhart 11y ago
Hi everyone, I'm Joshua Hartman, the lead engineer for all of LinkedIn's consumer products. Thanks for all the passionate feedback here and we really appreciate it. I just wanted to say that we've been hard at work trying t
69.
by joshhart 11y ago
There's one thing PG seems to implicitly which is that the movement from small company to large, dominating company in a vertical is a good thing. Ultimately startups seem to be producing winner-take-all companies. I do not believe thi
70.
by joshhart 11y ago
What is your topcoder handle?
71.
by joshhart 12y ago
What?? Aren't we supposed to be committed to reducing carbon emissions? Why is the government forcing me to pay more to do the right thing for the environment? If someone is willing to give us solar panels for super cheap why are we up
72.
LinkedIn Feed: Faster with Less JVM Garbage(engineering.linkedin.com)
2 points by joshhart 12y ago|0 comments
73.
by joshhart 12y ago
My biggest concern with Silicon Valley is that it will become so expensive that many potential startups are prevented from coming here. Sam also stated that housing costs were the biggest weakness. I wonder what YC could do about this probl
74.
by joshhart 12y ago
I wish this were open-source. Citus could certainly still make money hosting or supporting the code. But lack of sharing is what we get when major open-source projects do not choose the GPL.
75.
by joshhart 12y ago
Peter Thiel is lying. Plumbers make about 1/4 as much money as a doctor: http://money.usnews.com/careers/best-jobs/plumber/salary http://money.usnews.com/careers/best-jobs/physi
76.
by joshhart 12y ago
First - I'm a huge fan of your novels. I would assume it is a bit different for you, right? You need to do whatever is necessary to produce a few very high quality works. Some tech workers like Linus Torvalds writing git are in that ca
77.
by joshhart 12y ago
Apparently Steve Newman worked on it too. Is this the same Steve Newman that famously founded Writely (became Google Docs) and almost won at Topcoder one year?
78.
by joshhart 13y ago
We have this already - it's called the stock market and bond market. If you want to distribute the risk of investing in real estate, I suggest taking a look at REITs, real-estate investment trusts. They are companies investing in real
79.
by joshhart 13y ago
Not sure what your definition of "big" is. I have worked at Linkedin for 4 years and have been very happy there.
80.
San Francisco to Tax Google Buses(blogs.wsj.com)
2 points by joshhart 13y ago|1 comments
81.
by joshhart 13y ago
Yes, of course if you have domain expertise and there is a need you can recognize a niche to fill with a company. I think getting domain expertise is easier said than done and could probably require quitting one's day job to go work in
82.
by joshhart 13y ago
We built a similar system log-searching system using SenseiDB at LinkedIn. Splunk was outrageously expensive. It turns out that lucene based systems are pretty good at information retrieval and aren't shackled with all the OLTP require
83.
by joshhart 13y ago
You can find closed-form expressions for SOME likelihood functions. This is the case for logistic regression. Anyway, the takeaway that I think you were downvoted for omitting is that if you can bypass the serialization, startup, and shutdo
84.
by joshhart 13y ago
Justin: 1. Hadoop is multi-tenant. Another job could burst your cache. Unless things have dramatically changed since I first read the source a year or two ago, spark jobs basically grab control of the cluster so that the cache won't ge
85.
by joshhart 13y ago
I'm not sure they offer it any more (I'm grandfathered in), but Wells Fargo PMA accounts have 100 free trades / year. You do need 50k in total assets with Wells Fargo to get it though. Still, it's saved me at least 1k ov
86.
by joshhart 13y ago
I have read that book and it is indeed very good because it gives the reader tools to succeed and the clinical research proving that what we think and the way we think greatly influences our mood. Dr. Burns stated that the methods often wor
87.
by joshhart 14y ago
Jacob Kessler knows quite a bit about garbage collection :) Understanding the gc logs can be difficult. gcviewer is pretty good though at figuring it out. Always remember that garbage collection is slowest whenever the JVM has to copy objec
88.
by joshhart 14y ago
Hi cagenut, I'm a dev @ LinkedIn and I have regularly pushed services close to 30gb of heap, which serve close to 10k qps. After that it does get wonky, but I'm surprised you're having trouble getting it that far. Mind emailing me your conf
89.
by joshhart 14y ago
Answer: It uses a bunch of skip lists. Source: I do hacking on top of lucene.
90.
REST+JSON framework(rest.li)
6 points by joshhart 14y ago|0 comments

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