Author Topic: DELTA LAMBDA: Fit 1000 Times More Data on Devices  (Read 3236 times)

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Offline EEVblog

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DELTA LAMBDA: Fit 1000 Times More Data on Devices
« on: July 18, 2018, 09:38:20 am »
I'm sure they have done enough to con their investors (they obviously have seed investment already) into thinking this is actually order of magnitude game changing compression.
In reality it's bound to be mostly marking hype.
e.g. it's really really really hard to compress already compressed data like video, especially when it's lossless as they claim.
And of course it's on Indiegogo!

https://www.indiegogo.com/projects/delta-lambda-fit-1000-times-more-data-on-devices-apps-computers#/
« Last Edit: July 18, 2018, 09:39:53 am by EEVblog »
 

Offline EEVblog

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Re: DELTA LAMBDA: Fit 1000 Times More Data on Devices
« Reply #1 on: July 18, 2018, 10:06:01 am »
Wow, the more I look into this the dodgier it gets. I sense a video coming on...
 

Offline StillTrying

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Re: DELTA LAMBDA: Fit 1000 Times More Data on Devices
« Reply #2 on: July 18, 2018, 10:16:34 am »
Yep, they're claiming 1000X compression of 50GB blu-ray movies, = 1000 X total  :bullshit:

I wouldn't be surprised if their names are fake, all the names I tried gave old film stars rather than any tech stuff.
« Last Edit: July 18, 2018, 10:55:42 am by StillTrying »
 

Online coppice

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Re: DELTA LAMBDA: Fit 1000 Times More Data on Devices
« Reply #3 on: July 18, 2018, 10:54:47 am »
They deserve a wack over the head with a statue of Shannon for a stunt like that. People still fund perpetual motion machines, so they won't stop funding things which which break the fundamentals of information theory any time soon.
 

Offline phord

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Re: DELTA LAMBDA: Fit 1000 Times More Data on Devices
« Reply #4 on: July 18, 2018, 11:08:38 am »
Apparently real names, though they are going by their middle names for some reason. 

Some analysis here, but coming up with the same question:  "Who's the mark?"
https://www.metabunk.org/debunked-delta-lambda-compression.t9848/
 

Offline Cyberdragon

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Re: DELTA LAMBDA: Fit 1000 Times More Data on Devices
« Reply #5 on: July 18, 2018, 12:30:53 pm »
They deserved to be compressed a thousand times.

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Offline james_s

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Re: DELTA LAMBDA: Fit 1000 Times More Data on Devices
« Reply #6 on: July 18, 2018, 12:49:42 pm »
Well, if people are dumb enough to give them money...

To say I'm skeptical would be an understatement, however it doesn't actually break any laws of the universe that I'm aware of. The levels of compression currently achievable with MPEG on video are something that I wouldn't have believed possible 20 years ago. One must wonder how much better is actually possible to achieve.
 

Offline dunkemhigh

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Re: DELTA LAMBDA: Fit 1000 Times More Data on Devices
« Reply #7 on: July 18, 2018, 12:58:43 pm »
Quote
Some analysis here

Which has a couple of boobies itself:

Quote
1GB in their claimed 0.033 seconds is a bandwidth of 30 GB per second. The world's fastest SSD drive tops out at 6.8GB/s. So they are claiming a speed that is five times faster than you can possibly even just read the data off the drive.

Who said anything about drives? Could be memory to memory, but suppose it does involve a drive - if the compressed part is on the drive and the decompressed in memory, the throughput needed would be 1000x less (so 3GB/s) and achievable.

Of course, it is a scam - he rightly points out the discrepancy in scaling - but if you're debunking something you do need to be right on all counts.

[Edit: No sooner said than:  "1000x less (so 3GB/s)" D'oh. Should be 30MB/s]
« Last Edit: July 18, 2018, 03:25:57 pm by dunkemhigh »
 

Offline agehall

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Re: DELTA LAMBDA: Fit 1000 Times More Data on Devices
« Reply #8 on: July 18, 2018, 03:12:25 pm »
I want to believe, but this is way too good to be true on so many levels.
 

Online Kalvin

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Re: DELTA LAMBDA: Fit 1000 Times More Data on Devices
« Reply #9 on: July 18, 2018, 05:09:04 pm »
They must have failed marketing this invention to NSA. ;)
 

Offline Kjelt

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Re: DELTA LAMBDA: Fit 1000 Times More Data on Devices
« Reply #10 on: July 18, 2018, 07:02:00 pm »
Link seems to be removed.

Anyway this sounds like a flashback, end 99 a dutch "inventor" Jan Sloot claimed he could put tens of dvd's on a 64kB chip or a compression of 1:1000000.
The Philips second in command at the time Roel Pieper believed him and took his device to Philips Research where all the principal scientists claimed it was impossible and a fraud. They took it to the USA trying to get investment capital.
Jan never disclosed his algorithm and died prematurely just before the invention was sold. A book was written and blabla.
Latest I have heard it was not a compression algorithm but a code. My interpretation was that it was what DirectX is now for games, you have a large library containing the information in building blocks and need less code to draw what you want to draw. But hey since it was never ever revealed or reverse engineered it could have well been fraud.

https://en.wikipedia.org/wiki/Jan_Sloot
« Last Edit: July 18, 2018, 07:05:56 pm by Kjelt »
 

Offline StillTrying

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Re: DELTA LAMBDA: Fit 1000 Times More Data on Devices
« Reply #11 on: July 18, 2018, 07:42:49 pm »
"Link seems to be removed."  -  All 3 links on this page work for me.

"the Sloot Digital Coding System, which could compress a complete movie down to 8 kilobytes of data — this is orders of magnitude greater compression than the best currently available technology in the 2010s."

"Despite the apparent impossibility of the encoding system, there were investors who saw potential. In early 1999, Dutch investor Marcel Boekhoorn joined the group. In March 1999, the system was demonstrated to Roel Pieper, former CTO and board member of Philips. Pieper resigned in Philips in May 1999 and joined Sloot's company as CEO, which was re-branded as The Fifth Force, Inc"
  https://en.wikipedia.org/wiki/Jan_Sloot

Why are CTOs and CEOs always clueless.
 

Offline sleemanj

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Re: DELTA LAMBDA: Fit 1000 Times More Data on Devices
« Reply #12 on: July 18, 2018, 07:44:11 pm »
The name "Delta Lambda" makes me think that this could be some slant on incremental deduped backup algorithms (or in simple terms, rsync).

If you had a consistent large amount of data amongst all the users of the system, and were able to encode some lambda function which operated over that data set or portion thereof, to rip out bitstreams and potentially apply some delta to them to create a target bitstream which forms desired resulting data, then  your "compressed" data consists of a series of lambda functions operating over a known data set and maybe any data that could not be otherwise described compressed by some standard algorithm.

I feel like there is something here that would make Kurt Gödel turn in his grave or something however.
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Offline firewalker

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Re: DELTA LAMBDA: Fit 1000 Times More Data on Devices
« Reply #13 on: July 18, 2018, 07:45:05 pm »
Digital overunity machine! <3 <3 <3

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Offline thm_w

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Re: DELTA LAMBDA: Fit 1000 Times More Data on Devices
« Reply #14 on: July 19, 2018, 06:32:21 am »
To say I'm skeptical would be an understatement, however it doesn't actually break any laws of the universe that I'm aware of. The levels of compression currently achievable with MPEG on video are something that I wouldn't have believed possible 20 years ago. One must wonder how much better is actually possible to achieve.

Which MPEG specifically? As far as I'm aware, any sort of lossless H264 or H265 is not terribly efficient, you'd save about as much space zipping the video.
If you are talking about lossy H26x that is a different story and has nothing to do with OP.

Found semi related post on dropbox lossless: http://www.solveigmm.com/de/gewusst-wie/the-details-of-dropbox-h264-lossless-compression/
 

Online coppice

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Re: DELTA LAMBDA: Fit 1000 Times More Data on Devices
« Reply #15 on: July 19, 2018, 07:28:15 am »
Well, if people are dumb enough to give them money...

To say I'm skeptical would be an understatement, however it doesn't actually break any laws of the universe that I'm aware of. The levels of compression currently achievable with MPEG on video are something that I wouldn't have believed possible 20 years ago. One must wonder how much better is actually possible to achieve.
It breaks the second law of thermodynamics. MPEG compresses well because it is lossy. It has been carefully designed to throw away what the human visual system is not very good at detecting, and that is a large part of a typical raw video signal. Lossless compression is only guaranteed to achieve a reduction in size if the data has some measure of predictability (e.g. is it known to contain a lot of repetition, and you can replace the repeating sections with one copy and a repeat count). Once you compress out everything which is predictable about the data, you are left with its raw entropy, and that can't be reduced further. For completely arbitrary data there is no predictability to begin with, and no compression is possible. This is basic information theory.
 

Online Bud

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Re: DELTA LAMBDA: Fit 1000 Times More Data on Devices
« Reply #16 on: July 19, 2018, 07:41:34 am »
Wow, the more I look into this the dodgier it gets. I sense a video coming on...

Wow !!  :popcorn:
 

Online bd139

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Re: DELTA LAMBDA: Fit 1000 Times More Data on Devices
« Reply #17 on: July 19, 2018, 07:48:57 am »
Bollocks factor 9.99 Mr Sulu.

This shit appears every few years. The only time I saw anything which was any good was when someone showed me a 5 minute video with audio in a 1.44mb floppy. This was using wavelet encoding and the quality wasn’t great (think 90s realplayer shit) but it was far ahead of anything else out there. And it was genuine.
 

Offline David Hess

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Re: DELTA LAMBDA: Fit 1000 Times More Data on Devices
« Reply #18 on: July 19, 2018, 07:56:20 am »
They resurrected a scam from the dial-up modem days?
 

Offline Bassman59

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Re: DELTA LAMBDA: Fit 1000 Times More Data on Devices
« Reply #19 on: July 19, 2018, 08:06:10 am »
I'm sure they have done enough to con their investors (they obviously have seed investment already) into thinking this is actually order of magnitude game changing compression.
In reality it's bound to be mostly marking hype.
e.g. it's really really really hard to compress already compressed data like video, especially when it's lossless as they claim.
And of course it's on Indiegogo!

https://www.indiegogo.com/projects/delta-lambda-fit-1000-times-more-data-on-devices-apps-computers#/

I wonder if they are using middle-out compression.
 

Offline james_s

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Re: DELTA LAMBDA: Fit 1000 Times More Data on Devices
« Reply #20 on: July 19, 2018, 09:13:37 am »
It breaks the second law of thermodynamics. MPEG compresses well because it is lossy. It has been carefully designed to throw away what the human visual system is not very good at detecting, and that is a large part of a typical raw video signal. Lossless compression is only guaranteed to achieve a reduction in size if the data has some measure of predictability (e.g. is it known to contain a lot of repetition, and you can replace the repeating sections with one copy and a repeat count). Once you compress out everything which is predictable about the data, you are left with its raw entropy, and that can't be reduced further. For completely arbitrary data there is no predictability to begin with, and no compression is possible. This is basic information theory.

Ah I missed that this was claiming to be lossless.

Even though MPEG is lossy, I find it extremely impressive that it works anywhere near as well as it does.
 

Offline IanMacdonald

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Re: DELTA LAMBDA: Fit 1000 Times More Data on Devices
« Reply #21 on: July 21, 2018, 05:56:28 pm »
It's conventional video which is an extremely inefficient format because it keeps sending (nearly) the same information over and over. Eliminate the repetition and you have a massive bandwidth saving, even with no compression.

Actually, this fact was exploited decades ago in the PAL colour decoder where the processing was split over two scan lines.  Feasible with the tech available then because a simple 64us delay line was all that was needed. Modern codecs compare entire frames and only send the changes.
 

Offline EEVblog

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Re: DELTA LAMBDA: Fit 1000 Times More Data on Devices
« Reply #22 on: July 21, 2018, 05:57:48 pm »
It's conventional video which is an extremely inefficient format because it keeps sending (nearly) the same information over and over. Eliminate the repetition and you have a massive bandwidth saving, even with no compression.

And that's what all the MPEG and other encoding formats do.

The problem with video is that (nearly) the "same information" varies enough for it to be a PITA due to noise on the image changing pixels, slight colour or lighting variation and reflections in the video image etc. If you have ever tried compress screen capture video vs supposedly "mostly still" video from a camera (even using tripod), you'll know that the screen capture data compress massively better than camera video does, because the frame-to-frame information is perfectly the same.

Still, these idiots claim 100x compression on already compressed video!
« Last Edit: July 21, 2018, 06:01:08 pm by EEVblog »
 

Online NiHaoMike

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Re: DELTA LAMBDA: Fit 1000 Times More Data on Devices
« Reply #23 on: July 22, 2018, 03:41:23 am »
I can see an opportunity for AI to preprocess the video by removing noise while keeping wanted details. Getting it to work as intended isn't going to be easy...
The only time I saw anything which was any good was when someone showed me a 5 minute video with audio in a 1.44mb floppy. This was using wavelet encoding and the quality wasn’t great (think 90s realplayer shit) but it was far ahead of anything else out there. And it was genuine.
There are a few videos encoded in ASM that manage to fit several minutes in 64kB!
http://www.theproduct.de/
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Offline brucehoult

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Re: DELTA LAMBDA: Fit 1000 Times More Data on Devices
« Reply #24 on: July 22, 2018, 02:37:12 pm »
These scammers overhype their stuff so much.  1000x?

Make an algorithm which can losslessly reduce the size of any file by JUST ONE BYTE and you'll become a trillionaire.
 


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