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Re: [idn] call for comments for REORDERING
My only comments are:
1. Like others, I believe that it is unnecessary.
2. If it were adopted, to ensure stability of IDN over time, the reordering
should absolutely be permanent -- never changed in the future, even if new
characters are added. This is not an onerous restriction, since reordering
is only a permutation of code points for the purpose of compression, and
neither adds nor removes information.
Mark
—————
Δός μοι ποῦ στῶ, καὶ κινῶ τὴν γῆν — Ἀρχιμήδης
[http://www.macchiato.com]
----- Original Message -----
From: "Soobok Lee" <lsb@postel.co.kr>
To: "Soobok Lee" <lsb@postel.co.kr>; <idn@ops.ietf.org>
Sent: Tuesday, October 09, 2001 21:11
Subject: [idn] call for comments for REORDERING
Hi, all
I am ready to receive any criticisms on REORDERING.
Any suggestions of improvements or downsides of REORDERING are all welcome.
I expect many feedbacks from non-US and non-European participants and
observers.
Thanks.
Soobok Lee
----- Original Message -----
From: "Soobok Lee" <lsb@postel.co.kr>
To: <idn@ops.ietf.org>
Sent: Sunday, September 30, 2001 8:12 PM
Subject: Re: [idn] I-D ACTION:draft-ietf-idn-lsb-ace-02.txt
> Hi, all
>
> This table summarizes the # of max chars in labels in each script block.
> This will be included the next revision of reordering I-D.
> For han/hangul block, REORDERING+ACE-Z outperforms DUDE by nearly 200%.
> If you have suggestions or other label samples to test with,
> please leave me a note.
>
> Thanks.
>
> Soobok Lee, lsb@postel.co.kr
>
>
> +------------------------------------------------------------+
> |Maximum number of characters in a label in each script block|
> | |
> | max char = (63 - 4) / ratio |
> | ACE length = 4 + ratio * N ( N : # of chars in label) |
> +---------------+-------------------+-------------------+----+
> | Script Block | AMC-ACE-Z | Reordering + |Gain|
> | | | AMC-ACE-Z | |
> +---------+-----+---------+---------+---------+---------+ |
> | Name |Size | ratio |max char | ratio |max char | |
> +---------+-----+---------+---------+---------+---------+----+
> | Han |20992| 2.98 | 19 | 2.21 | 26 | +7 |
> +---------+-----+---------+---------+---------+---------+----+
> | Hangeul |11172| 2.97 | 19 | 2.04 | 28 | +9 |
> +---------+-----+---------+---------+---------+---------+----+
> | Greek | 144 | 1.29 | 45 | 1.14 | 51 | +6 |
> +---------+-----+---------+---------+---------+---------+----+
> | Arabic | 256 | 1.34 | 44 | 1.28 | 46 | +2 |
> +---------+-----+---------+---------+---------+---------+----+
> |Cyrillic | 304 | 1.23 | 47 | 1.15 | 51 | +4 |
> +---------+-----+---------+---------+---------+---------+----+
> | Hebrew | 102 | 1.29 | 45 | 1.18 | 50 | +5 |
> +---------+-----+---------+---------+---------+---------+----+
> | Hindi | 128 | 1.31 | 45 | 1.17 | 50 | +5 |
> +---------+-----+---------+---------+---------+---------+----+
> |Hiragana | 96 | 1.50 | 39 | 1.45 | 40 | +1 |
> +---------+-----+---------+---------+---------+---------+----+
> |Katakana | 96 | 1.44 | 40 | 1.33 | 44 | +4 |
> +---------+-----+---------+---------+---------+---------+----+
> | Tamil | 128 | 1.62 | 36 | 1.14 | 51 |+15 |
> +---------+-----+---------+---------+---------+---------+----+
> | Thai | 128 | 1.39 | 42 | 1.13 | 52 |+10 |
> +---------+-----+---------+---------+---------+---------+----+
> |Ethiopic | 416 | 2.10 | 28 | 1.60 | 36 | +8 |
> +---------+-----+---------+---------+---------+---------+----+
>
>
> ----- Original Message -----
> From: <Internet-Drafts@ietf.org>
> To: <IETF-Announce:>
> Cc: <idn@ops.ietf.org>
> Sent: Tuesday, September 18, 2001 10:33 PM
> Subject: [idn] I-D ACTION:draft-ietf-idn-lsb-ace-02.txt
>
>
> > A New Internet-Draft is available from the on-line Internet-Drafts
directories.
> > This draft is a work item of the Internationalized Domain Name Working
Group of the IETF.
> >
> > Title : Improving ACE using code point reordering v2.0
> > Author(s) : S. Lee
> > Filename : draft-ietf-idn-lsb-ace-02.txt
> > Pages :
> > Date : 17-Sep-01
> >
> > This document describes a method to improve ACE label efficiency by
> > frequency-based temporal reordering of code points in ACE encoding
> > and decoding processes in order to relocate scattered frequent
> > characters into much more compact area in reordered code space.
> >
> > A URL for this Internet-Draft is:
> > http://www.ietf.org/internet-drafts/draft-ietf-idn-lsb-ace-02.txt
> >
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