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ANN: Dogelog Player 1.2.6 (Segmented Fileaccess)

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  ANN: Dogelog Player 1.2.6 (Segmented Fileaccess) Mild Shock <janburse@fastmail.fm> - 2025-01-23 10:20 +0100
    Re: ANN: Dogelog Player 1.2.6 (Segmented Fileaccess) Mild Shock <janburse@fastmail.fm> - 2025-02-08 14:23 +0100

#53736 — ANN: Dogelog Player 1.2.6 (Segmented Fileaccess)

Dear All,

We are happy to announce a new edition of the Dogelog player:

- Segmented Fileaccess:
   Due to UTF-8 problems, files were read completely into
memory in order to then allow stream access.  In order to be
able to use HTTP Transfer-Encoding: chunked, the UTF-8 problem
has been solved and only individual blocks will be
read into memory.

- New library(crypto):
   Segmented file access is supported not only for text files
but also for binary files.  This allows hash digests to be
calculated in a memory-saving manner.  The library implements
a binding to the SHA-256 algorithms of JavaScript,
Python and Java.

- Backtracking Datastructures:
   The libraries library(hash) and library(tree), which
were only realized non-backtracking so far, have been
expanded to include further predicates that allow
backtracking updates.  library(hash) has been completely
rewritten to open lists and only provides partial persistence,
whereas library(tree) provides full persistence.

For more details: Dogelog

Have Fun!

Jan Burse, http://www.xlog.ch/ , 23.01.2025

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#53737

A SAT Solver is a computer program which aims to
solve the Boolean satisfiability problem. By a SAT
Learner we understand a computer program that tries
to find a Boolean formula, with a satisfiability that
matches some given data.

We find already evolutionary algorithms in John
Hollands book from 1975. Since we do not provide
cross-over we can implement island evolution with
random proportionate selection. The resulting Zero-Less
Decision Diagrams might not recognize all example
7-segment digits correctly.

See also:

SAT Learning in Dogelog Player
https://x.com/dogelogch/status/1888209886447653040

SAT Learning in Dogelog Player
https://www.facebook.com/groups/dogelog

Mild Shock schrieb:
> 
> Among algebraic approaches to logic we find binary
> decision diagrams. The approach is syntactical and not
> semantical, since it focuses on a certain formulas to
> represent truth tables. Unlike matrix like disjunctive
> or conjunctive normal forms, they give tree
> like normal forms.
> 
> Donald Knuth also popularized zero-suppressed
> decision diagrams, a binary decision diagram variant
> developed by Shin-Ichi Minato. Their appeal results
> from "jump" where nodes are omitted. We focused more
> on the cost of negation and arrived at zero-less
> decision diagram. They might have different niche
> application areas.
> 
> See also:
> 
> Zero-Less Decision Diagrams in Dogelog Player
> https://x.com/dogelogch/status/1887521934348374204
> 
> Zero-Less Decision Diagrams in Dogelog Player
> https://www.facebook.com/groups/dogelog
> 
> Mild Shock schrieb:
>>
>> The examined Prolog Notebook projects SWI for Sharing,
>> Ciao Notebooks and Tau Prolog all offer some Prolog
>> text coloring. We conducted an experiment whether we
>> can utilize some synergies in Dogelog Player to provide
>> a colorizer without using any 3rd party library.
>>
>> Since the batch processing slowed down the experience
>> of notebooks we changed our mind and started developping
>> a dynamic filter. Passive Logic Documents (PLD) are turned
>> into Active Logic Documents (ALD) via an asynchronous
>> call into a 100% in Prolog realized colorizer library.
>>
>> See also:
>>
>> Dogelog Notebooks with Prolog Coloring
>> https://x.com/dogelogch/status/1882455350739337230
>>
>> Dogelog Notebooks with Prolog Coloring
>> https://www.facebook.com/groups/dogelog
>>
>> Mild Shock schrieb:
>>> Dear All,
>>>
>>> We are happy to announce a new edition of the Dogelog player:
>>>
>>> - Segmented Fileaccess:
>>>    Due to UTF-8 problems, files were read completely into
>>> memory in order to then allow stream access.  In order to be
>>> able to use HTTP Transfer-Encoding: chunked, the UTF-8 problem
>>> has been solved and only individual blocks will be
>>> read into memory.
>>>
>>> - New library(crypto):
>>>    Segmented file access is supported not only for text files
>>> but also for binary files.  This allows hash digests to be
>>> calculated in a memory-saving manner.  The library implements
>>> a binding to the SHA-256 algorithms of JavaScript,
>>> Python and Java.
>>>
>>> - Backtracking Datastructures:
>>>    The libraries library(hash) and library(tree), which
>>> were only realized non-backtracking so far, have been
>>> expanded to include further predicates that allow
>>> backtracking updates.  library(hash) has been completely
>>> rewritten to open lists and only provides partial persistence,
>>> whereas library(tree) provides full persistence.
>>>
>>> For more details: Dogelog
>>>
>>> Have Fun!
>>>
>>> Jan Burse, http://www.xlog.ch/ , 23.01.2025
>>
> 

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