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Conpressed, Direct Child Info, Word Tracking, Lexicon Data Structure, ADTDAWG?

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Old 10-25-2009
Conpressed, Direct Child Info, Word Tracking, Lexicon Data Structure, ADTDAWG?
Hello,

Back in late August 2009, I decided to start working on a modification of the traditional Directed Acyclic Word Graph data structure.

End Of Word Nodes did not match up with single words, and Child Information had to be discovered through list scrolling. These were a heavy price to pay for a small data structure.

I made a series of observations that led me to the ADTDAWG.

- The Adamovsky Direct Tracking Directed Acyclic Word Graph -

I documented the project with full disclosure on the web page below...

Adamovsky Direct Tracking Directed Acyclic Word Graph - An Advanced Lexicon Data Structure

The construct has proved its value in a series of rigorous tests that I designed for it.

Do you have any comments about the structure?

All the Best,

HeavyJ
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LEARN ABOUT SUSE

doc

DOC(4)                                                       Kernel Interfaces Manual                                                       DOC(4)

NAME

       DOC - (Pilot standard text document) file format

SYNOPSIS

       struct doc_record0 {      /* 16 bytes total */
            Word   version;      /* 1 = plain text, 2 = compressed text */
            Word   reserved1;
            DWord  doc_size;     /* uncompressed size in bytes */
            Word   num_recs;     /* not counting itself */
            Word   rec_size;     /* in bytes: usually 4096 (4K) */
            DWord  reserved2;
       };

DESCRIPTION

       The  Doc  file  format is the standard text document format used by all models of the Palm Pilot.  A Doc file is a pdb(4) file: this manual
       page describes only those aspects specific to Doc files.

       A Doc file consists of 0 to num_recs records; record 0 is the header for the document.  (This header is distinct from the  pdb(4)  header.)
       The remaining records contain text, either plain or compressed depending upon version.

   Word Sizes
       In  the  synopsis  above,  the  types ``Word'' and ``DWord'' are used just as in the Pilot headers.  The type ``Word'' is 16 bits; the type
       ``DWord'' is 32 bits.  Both are in big-endian format.

   Compression Format
       A character ``c'' in a compressed record is in one of four classes:

       01-08     Copy ``c'' bytes

       00,09-7F  Self

       80-BF     Sequence

       C0-FF     A space plus the ASCII character ``c ^ 0x80''

SEE ALSO

       txt2pdbdoc(1), html2pdbtxt(1), pdbtxt2html(1), pdb(4)

       Christopher Bey and Kathleen Dupre.  Palm File Format Specification, Document Number 3008-003, Palm, Inc., May 16, 2000.

AUTHOR

       Paul J. Lucas <pauljlucas@mac.com>

txt2pdbdoc                                                       January 21, 2005                                                           DOC(4)