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KnowledgeSvr.readme
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1999-11-05
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Short: Knowledge Based System Inference Net Builder
Author: Andrew@basden.demon.co.uk
Uploader: Andrew@basden.demon.co.uk
Version: 1.1
Type: comm/tcp
ISTAR KNOWLEDGE SERVER
(Note: At present, in Aminet, Istar in dev/misc
and KnowledgeServer in comm/tcp, are the same program.
But in future they might diverge and have different
capabilities or packagings.)
Istar is a knowledge based system builder that allows you to construct
inference nets, bayesian nets and semantic nets. It has a particularly
nice user interface, with a smoothness that only Amiga hardware can give.
So it is useful for decision support, to help you clarify complex ideas.
Version 1.1 has Knowledge Server capability. That is, knowledge bases
created by Istar can be run over the Internet, worldwide.
(Note: If you have a version of Istar1.1 that has a date on or before
6th October 1999, then you will find some tracing text that appears
on the console when running in server mode. This was detected, and
removed on 7th October 1999. The tracing merely shows stack usage,
and is interesting: around 1k at that point - though best to keep
stack high (20000) for other things.)
You build your knowledge base by drawing boxes and arrows, and then
can run the KB either direct or via a browser.
See docs/index.html to get going. Most documentation is now in html.
See the following Web pages:
The main Istar page is
http://www.basden.demon.co.uk/pgm/Istar
and information about the server is on
http://www.basden.demon.co.uk/pgm/Istar/server.html
which has a link allowing you to connect to the demonstration
Istar Knowledge Server site.
NEW IN THIS VERSION (See docs/history.html)
A number of other changes have been made, bugs fixed,
etc. to the main Istar since version 1.092.
But the major change is that Version 1.1 has been made into
a knowledge server. That is, Istar can converse with a
distant browser.
In addition to a standard local user interface for the run-time user,
there is also an interface to HTTP. Though the modular nature
of Istar made it easy to get an initial version working, the
inference engine required an overhaul before it could support
multi-user access.
Version 1.092 introduces reset values, which allows you to specify
a default value to which an attribute will be set when a question is
asked (previously it showed the value left there from previous
working. See history.html). A few enforcer hits had been found
and these have been fixed; see bugs.html. Help buttons are now
available on forms.
PLANS
COPYRIGHT
Istar, all versions, are copyright (C) Andrew Basden, University
of Salford, Salford, M5 4WT, U.K. Istar@basden.demon.co.uk.
The version with this file can be used freely as long as all copies
of it include the name 'Istar' in their file names whereever they
are stored and as long as this file and copyright notice is
kept with the file.
SYSTEM REQUIREMENTS
Known to work on Amiga 1200, 3000, 4000. Will just about run in
2Mb machines, but recommend use the IstarPrefs_LowMem as your
preferences file.
Assigns needed (can work without them):
IstarSys: (has IstarPrefs and, in future, other things)
KBTools: where KBs are saved etc.
Fonts used (unless specified in IstarPrefs):
Courier
Garnet
Topaz
Libs used:
iff.library (but can work without it)
Stack usage: 20,000 recommended, but real usage unknown.
Surprisingly small, but once ran out when the standard 4k.
It works best if you assign KBTools: to the directory where you keep
your knowledge bases, and IstarSys: to a directory where various system
files are kept. At present, the only file sought in IstarSys is IstarPrefs.
Otherwise just starts as Sys: root.
FILES INCLUDED:
Istar Main program.
This Istar.readme and Intro files.
Preferences files, especially IstarPrefs.server
Server text files in files/ directory.
Server KB text files and .serverkbs control file in KBs
Documentation. Most is now html and cross-linked
for easy reference. docs/Intro is an ascii version of index.html.
Sample knowledge bases.
Installation script.
DISCLAIMER:
Istar is supplied as-is.
Istar is still under development. Some of its buttons do not work
because they are not attached to anything yet. Some of its more
exotic data transformations do not yet work. See bugs.html.
Let me know what you think of it, by mailing me at Istar@basden.demon.co.uk
Andrew Basden.
7.10.99
============================= Archive contents =============================
Original Packed Ratio Date Time Name
-------- ------- ----- --------- -------- -------------
2100 317 84.9% 07-Oct-99 12:44:14 Istar.info
536 298 44.4% 11-Sep-99 17:00:34 +_svl
194 138 28.8% 11-Sep-99 17:00:42 +_svl.html
628 249 60.3% 06-Nov-96 18:29:58 +docs.info
21323 8338 60.8% 24-Sep-99 16:33:10 +bugs.html
31054 11878 61.7% 05-Mar-98 17:28:48 +driving.html
7182 2874 59.9% 09-Dec-98 22:12:54 +dyndocs.html
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3027 1256 58.5% 21-Sep-99 12:51:56 +server.files.html
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8110 2258 72.1% 05-Mar-98 19:29:16 +uop.html
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5832 2671 54.2% 17-Mar-98 22:28:20 +using.sn.html
4583 1670 63.5% 22-Dec-97 23:10:34 +values.html
628 252 59.8% 11-Sep-99 16:44:22 +files.info
233 176 24.4% 04-Mar-99 22:24:44 +htmlbad
390 261 33.0% 31-Mar-99 14:36:34 +htmlbadkbfile
332 224 32.5% 12-Mar-99 23:37:44 +htmlbadkbid
118 102 13.5% 26-Feb-99 10:01:14 +htmlend
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17 17 0.0% 04-Mar-99 22:44:32 +htmlh6
17 17 0.0% 04-Mar-99 22:44:24 +htmlh7
23 23 0.0% 26-Mar-99 12:26:56 +htmlhead
443 263 40.6% 11-Sep-99 16:29:02 +htmlhelppage
330 225 31.8% 03-Aug-99 21:20:42 +htmlnodoc
217 166 23.5% 20-Sep-99 16:30:04 +htmlnogl
429 282 34.2% 31-Mar-99 14:35:08 +htmlnokbc
131 103 21.3% 19-Feb-99 10:49:32 +htmlnotes
106 88 16.9% 05-Mar-99 16:39:38 +htmlresults
352 236 32.9% 20-Apr-99 12:18:18 +htmlstoppage
46 46 0.0% 02-Jun-99 14:22:40 +htmlwelcomedet
160 127 20.6% 19-Mar-99 12:02:00 +htmlwelcomeend
787 428 45.6% 19-Mar-99 12:01:46 +htmlwelcomestart
3160 2261 28.4% 04-Jan-95 16:22:00 +iff.library
5932 2584 56.4% 11-Sep-99 16:38:10 +index.html
2905 1314 54.7% 24-Sep-99 17:00:44 +Install.readme
443 113 74.4% 26-Dec-97 23:14:18 +Install.readme.info
4442 1622 63.4% 07-Oct-99 14:59:52 +Install_Istar
665 321 51.7% 07-Oct-99 14:52:54 +Install_Istar.info
109956 60617 44.8% 30-Apr-96 22:52:42 +Installer
462 193 58.2% 08-May-96 22:50:24 +Installer.info
508948 256960 49.5% 07-Oct-99 12:01:52 +Istar
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68 65 4.4% 21-Sep-99 15:50:34 +IstarPrefs.server
146 115 21.2% 13-Nov-96 06:47:36 +IstarPrefs_Example
21 21 0.0% 06-Nov-96 17:07:04 +IstarPrefs_LowMem
628 250 60.1% 27-Apr-95 11:00:06 +KBs.info
334 137 58.9% 07-Oct-99 14:58:30 +.serverkbs
52200 22710 56.4% 09-Apr-97 14:02:44 +A.I.
50956 21876 57.0% 26-Dec-97 14:50:06 +Philosophy
47412 20481 56.8% 01-Jun-99 00:27:06 +shares
3692 1650 55.3% 21-Sep-99 11:53:16 +shares.intro
719 392 45.4% 02-Jun-99 22:40:28 +shares.long
158 121 23.4% 20-Sep-99 13:03:06 +shares.short
82576 37351 54.7% 21-Sep-99 15:40:36 +trees
1899 896 52.8% 21-Sep-99 11:53:32 +trees.intro
611 387 36.6% 02-Jun-99 22:40:32 +trees.long
217 147 32.2% 20-Sep-99 13:02:24 +trees.short
4410 2165 50.9% 07-Oct-99 12:14:40 +KnowledgeServer.readme
443 112 74.7% 26-Dec-97 23:14:56 +KnowledgeServer.readme.info
30077 9674 67.8% 21-Sep-99 12:13:24 +server.html
-------- ------- ----- --------- --------
1640352 667019 59.3% 21-Oct-99 20:58:16 109 files