Hacker News: hobbyist

New comment by hobbyist in "Show HN: CPU simulator in 60 lines of code"

hobbyist — Tue, 13 Oct 2015 17:59:08 +0000

There are no cmp, branch instructions. How is this turing complete?

Ask HN: Why do some of the engineers/hackers manage their own mail servers?

hobbyist — Sun, 17 May 2015 23:25:47 +0000

I want to know why do some engineers/hackers have email setup on their private domains. I like most of the people use gmail. Is the desire to learn how to manage the system makes people have their own private mail servers? I don't really see security or privacy as an issue unless gpg is used extensively.

Do you configure/setup/manage the mail servers yourself or is it handled by the hosting service providers?

Comments URL: https://news.ycombinator.com/item?id=9562169

Points: 8

# Comments: 13

New comment by hobbyist in "Show HN: A tool that transforms your whole list with just one example"

hobbyist — Fri, 24 Apr 2015 21:46:47 +0000

I think Makefile have such pattern matching, which can be utilized to do such list transformations too.

New comment by hobbyist in "Principal component analysis explained visually"

hobbyist — Thu, 12 Feb 2015 20:03:47 +0000

How differently is linear regression than PCA? I understand the procedure and methods are completely different, but isn't linear regression also going to give the same solution on these data sets?

New comment by hobbyist in "A Software Engineer’s Adventures in Learning Mathematics"

hobbyist — Thu, 05 Feb 2015 05:55:40 +0000

I am guessing you went for a graduate degree in math. How hard was it to get admission? Would you like to recommend some good schools for doing something like you did. I am just a little younger but hungry for math knowledge.

New comment by hobbyist in "Lisp implementation in sed"

hobbyist — Sat, 28 Jun 2014 01:04:26 +0000

The author has won an IOCCC contest. This would have just pricked him a bit.

New comment by hobbyist in "Learn C, Then Learn Computer Science"

hobbyist — Sun, 09 Feb 2014 22:48:20 +0000

Could you elaborate more or give some references on the second and third part? I am done with the first. I seriously need some profound knowledge on second and third, which a lot of people like you talk about. I need to put a plan to get there too. Scheme to C looks fun though :-) . Where should I start first with?

New comment by hobbyist in "MapReduce and Spark"

hobbyist — Fri, 03 Jan 2014 02:39:25 +0000

I often read that spark avoids the costly synchronization required in mapreduce, since it uses DAG's. Can someone explain how is that achieved. If the application so demands that you can launch jobs together, that can be done even with hadoop/mapreduce. If one job requires the output of another, then the job has to wait for synchronization whether its mapreduce or DAG.

New comment by hobbyist in "Spark: Open Source Superstar Rewrites Future of Big Data"

hobbyist — Wed, 19 Jun 2013 23:15:17 +0000

Good question. I did read the spark paper, and one reason that I found for spark doing so much better than hadoop was that it avoids the unnecessary serialization, deserialization which hadoop just can not avoid. The RDD's as mentioned by @rxin, are in memory objects and thus do not require frequent serialization/deserialization when multiple operations are being applied to data.

New comment by hobbyist in "Mozilla and Samsung Collaborate on Next Generation Web Browser Engine"

hobbyist — Wed, 03 Apr 2013 15:44:48 +0000

I am not well-versed in the browser designs, could you highlight what hard problems are you referring to?

New comment by hobbyist in "An Overview of Memory Management in Rust"

hobbyist — Tue, 19 Mar 2013 05:03:08 +0000

If Rust doesn't allow pointer arithmetic and conjuring up a pointer using '&' like in C, it doesn't make me feel there is anything special here.

New comment by hobbyist in "Procrastination is Not Laziness"

hobbyist — Fri, 15 Mar 2013 03:37:41 +0000

I am waiting for someone to prove, solving procrastination problem is NP-Complete

New comment by hobbyist in "How I Explained REST to My Wife (2004)"

hobbyist — Mon, 11 Mar 2013 14:14:49 +0000

Correct me if I am wrong here. So, instead of the eloquent method of using GET, POST and PUT on resources, the current practice is about the programmer writing custom parsers to get the information they want and then use them accordingly.

New comment by hobbyist in "Gravitational Lensing to Observe Ancient Earth"

hobbyist — Tue, 05 Mar 2013 00:35:49 +0000

Read only access!! ROFL

New comment by hobbyist in "Stanford Grad Sues Snapchat Claiming They Stole His ‘Million Dollar Idea’"

hobbyist — Wed, 27 Feb 2013 20:15:54 +0000

These guys always forget "Its never a Million Dollar Idea, its a Million Dollar Execution"

New comment by hobbyist in "Confessions of a Git Skeptic"

hobbyist — Wed, 20 Feb 2013 22:39:23 +0000

Well, if 2 people are working on different files, they can commit their changes to svn without updating their local copy first. But in git you have to bring your copy to the same revision as the remote one, in order to push your changes, irrespective whether the changes you made our conflicting

New comment by hobbyist in "Confessions of a Git Skeptic"

hobbyist — Wed, 20 Feb 2013 18:32:10 +0000

Once speaking to a freebsd developer, he explained the problems with git in freebsd workflow.

His explanation was on the lines that if there are 100 developers working on different trees of freebsd and they want to commit their work, it causes a race, as if some one commits before you, you need to do a git pull, incorporate changes and then push, even when they are working on unrelated components.

My response to this was yes, and that is why git allows you to create branches so cheaply, but he still was not convinced.

New comment by hobbyist in "Amazon Redshift is 10x faster and cheaper than Hadoop and Hive"

hobbyist — Wed, 20 Feb 2013 01:34:39 +0000

Are they benchmarking hash join on hadoop and redshift?

New comment by hobbyist in "Ubuntu on tablets"

hobbyist — Tue, 19 Feb 2013 17:00:11 +0000

There is something visionary about these South Africans, first Elon Musk and then Mark Shuttleworth.

New comment by hobbyist in "Fabrice Bellard: Portrait of a super-productive programmer (2011)"

hobbyist — Fri, 08 Feb 2013 16:06:44 +0000

Shit. Yes I am Jealous. That is fucking awesome. I would leave any highest paid job with google, fb blah blah to work with Fabrice :)