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| Started by | Harry Potter <rose.joseph12@yahoo.com> |
|---|---|
| First post | 2015-01-26 05:03 -0800 |
| Last post | 2015-02-05 08:10 -0800 |
| Articles | 6 — 2 participants |
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My File Compression Technique: *Some* Progress! Harry Potter <rose.joseph12@yahoo.com> - 2015-01-26 05:03 -0800
Re: My File Compression Technique: *Some* Progress! Hans-Peter Diettrich <DrDiettrich1@aol.com> - 2015-01-26 14:42 +0100
Re: My File Compression Technique: *Some* Progress! Harry Potter <rose.joseph12@yahoo.com> - 2015-01-26 05:55 -0800
Re: My File Compression Technique: *Some* Progress! Harry Potter <rose.joseph12@yahoo.com> - 2015-01-26 13:39 -0800
Re: My File Compression Technique: *Some* Progress! Harry Potter <rose.joseph12@yahoo.com> - 2015-01-27 06:51 -0800
Re: My File Compression Technique: *Some* Progress! Harry Potter <rose.joseph12@yahoo.com> - 2015-02-05 08:10 -0800
| From | Harry Potter <rose.joseph12@yahoo.com> |
|---|---|
| Date | 2015-01-26 05:03 -0800 |
| Subject | My File Compression Technique: *Some* Progress! |
| Message-ID | <5b93d8b9-1161-4aea-a73d-eae444ae7e83@googlegroups.com> |
Okay. Right now, my compression technique seems to be doing better on *some* files but worse on most. :( I have more work to do.
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| From | Hans-Peter Diettrich <DrDiettrich1@aol.com> |
|---|---|
| Date | 2015-01-26 14:42 +0100 |
| Message-ID | <cimui9Fn21vU1@mid.individual.net> |
| In reply to | #2820 |
Harry Potter schrieb: > Okay. Right now, my compression technique seems to be doing better > on *some* files but worse on most. :( That's normal, cannot be avoided. And that's why zip and 7zip support multiple compression methods, and select the best one for every file. DoDi
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| From | Harry Potter <rose.joseph12@yahoo.com> |
|---|---|
| Date | 2015-01-26 05:55 -0800 |
| Message-ID | <a7d5cea4-4cac-4b50-b45d-a2cbb9259205@googlegroups.com> |
| In reply to | #2822 |
On Monday, January 26, 2015 at 8:42:35 AM UTC-5, Hans-Peter Diettrich wrote: > That's normal, cannot be avoided. And that's why zip and 7zip support > multiple compression methods, and select the best one for every file. > > DoDi You're right! Some of the techniques I tried seem to help on some files and hurt on others. :(
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| From | Harry Potter <rose.joseph12@yahoo.com> |
|---|---|
| Date | 2015-01-26 13:39 -0800 |
| Message-ID | <7303c867-f5f3-40b5-8467-d3bc38463d47@googlegroups.com> |
| In reply to | #2823 |
On Monday, January 26, 2015 at 8:55:53 AM UTC-5, Harry Potter wrote: > On Monday, January 26, 2015 at 8:42:35 AM UTC-5, Hans-Peter Diettrich wrote: > > That's normal, cannot be avoided. And that's why zip and 7zip support > > multiple compression methods, and select the best one for every file. > > > > DoDi > > You're right! Some of the techniques I tried seem to help on some files and hurt on others. :( More news: after the last post here, I got my technique to perform better on five files and worse on two over the Deflate technique. Not only that, but the difference was considerable: around or a little more than 10% on two files! :D Now, this sounds too good to be true. I will do one last idea then debug and see for sure.
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| From | Harry Potter <rose.joseph12@yahoo.com> |
|---|---|
| Date | 2015-01-27 06:51 -0800 |
| Message-ID | <3f1ea368-3088-4b33-b257-622717d97fe2@googlegroups.com> |
| In reply to | #2825 |
On Monday, January 26, 2015 at 4:39:06 PM UTC-5, Harry Potter wrote: > On Monday, January 26, 2015 at 8:55:53 AM UTC-5, Harry Potter wrote: > > On Monday, January 26, 2015 at 8:42:35 AM UTC-5, Hans-Peter Diettrich wrote: > > > That's normal, cannot be avoided. And that's why zip and 7zip support > > > multiple compression methods, and select the best one for every file. > > > > > > DoDi > > > > You're right! Some of the techniques I tried seem to help on some files and hurt on others. :( > > More news: after the last post here, I got my technique to perform better on five files and worse on two over the Deflate technique. Not only that, but the difference was considerable: around or a little more than 10% on two files! :D Now, this sounds too good to be true. I will do one last idea then debug and see for sure. I did some more tweaks this morning, and the software is working slightly better than last night. :)
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| From | Harry Potter <rose.joseph12@yahoo.com> |
|---|---|
| Date | 2015-02-05 08:10 -0800 |
| Message-ID | <e7261a5d-a9d7-46aa-9558-fb3027a8de02@googlegroups.com> |
| In reply to | #2827 |
On Tuesday, January 27, 2015 at 9:51:29 AM UTC-5, Harry Potter wrote: > I did some more tweaks this morning, and the software is working slightly better than last night. :) It's working slightly better now. I'm trying to minimize the Huffman overhead (>120 bytes on some files). Once I do that, I need to finish and start debugging the Huffman codes and inch my way into my other techniques.
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