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Rounding numbers=compressing files

Anonymous Thu 17 Sep 11:07:07 2020 No.12130734 View Reply Original Report

Quoted By: >>12133224

I don't know shit about CS but is rounding numbers like compressing files?

Like you retain the more general information but lose the details?

Anonymous

Anonymous Thu 17 Sep 2020 11:11:52 No.12130738 Report

Quoted By: >>12130740

There is lossy compression and lossless compression.

Rounding is lossy compression because you lose information.

Not all compression is lossy (eg png is lossless while jpg is lossy).

Anonymous

Anonymous Thu 17 Sep 2020 11:14:52 No.12130740 Report

Quoted By:

>>12130738
can you make an example i can understand of lossless compression?

if it is possible

Anonymous

Anonymous Thu 17 Sep 2020 11:17:47 No.12130744 Report

Quoted By: >>12130848

No. Compression doesn´t have to lose information. You just come up with rules so that you can represent original information in compressed way.

Dumb example:
(x)(r) mean repeat number x r times
Then number: 24555555555555555555555555555556
Could be written 24(5)(30)6
and hopefully this data structure would be more efficient in some way.

Anonymous

Anonymous Thu 17 Sep 2020 12:03:46 No.12130848 Report

Quoted By: >>12133219

>>12130744
thanks, understood, is it possible then to take something super big like a picture or a program, and given a set of rules, find out a minimal amount of information that you can give along with the instructions so that you just store them and then after you launch it it unfolds?

Like the conway game of life

Anonymous

Anonymous Fri 18 Sep 2020 00:57:17 No.12133219 Report

Quoted By:

>>12130848
People do this all the time. One example I can think of is a dude trying to fit a game onto a qr code.
Here's the link if you're interested
https://youtu.be/ExwqNreocpg

Anonymous

Anonymous Fri 18 Sep 2020 00:58:35 No.12133224 Report

Quoted By:

>>12130734
stupid
question
thread
please

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