X-Git-Url: http://www2.svjatoslav.eu/gitweb/?a=blobdiff_plain;f=doc%2Findex.html;h=afffa3246c83d5cfb39bdd75fa85c82b7b45d995;hb=f3cc9e04c296bb3cd21446bd3571d20fc2fb4615;hp=2b05c7810ff440485ee1b21efcd40b0ab92d9643;hpb=ea83ab5b7bfde99f3762333a8f8986f96d18454a;p=sixth-data.git

diff --git a/doc/index.html b/doc/index.html
index 2b05c78..afffa32 100644
--- a/doc/index.html
+++ b/doc/index.html
@@ -2,14 +2,14 @@
 <html lang="en">
 <head>
 <title>Sixth Data - Data storage and computing engine</title>
-<!-- 2018-06-23 Sat 22:30 -->
+<!-- 2020-06-20 Sat 03:28 -->
 <meta charset="utf-8">
 <meta name="viewport" content="width=device-width, initial-scale=1">
 <meta name="generator" content="Org-mode">
 <meta name="author" content="Svjatoslav Agejenko">
-<link href="https://bootswatch.com/4/darkly/bootstrap.min.css" rel="stylesheet">
-<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.2/jquery.min.js"></script>
-<script src="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.3.1/js/bootstrap.min.js"></script>"
+<link href="https://bootswatch.com/3/darkly/bootstrap.min.css" rel="stylesheet">
+<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.min.js"></script>
+<script src="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.3.5/js/bootstrap.min.js"></script>
 <style type="text/css">
 footer {background-color: #111 !important;}
 pre {background-color: #111; color: #ccc;}
@@ -201,27 +201,22 @@ $(function() {
 <h2 id="sec-1"><span class="section-number-2">1</span> General</h2>
 <div class="outline-text-2" id="text-1">
 <ul class="org-ul">
-<li>This is a subproject of <a href="http://www3.svjatoslav.eu/projects/sixth/">Sixth</a>
-</li>
-
-<li>This program is free software: you can redistribute it and/or modify
-it under the terms of the <a href="https://www.gnu.org/licenses/lgpl.html">GNU Lesser General Public License</a> as
-published by the Free Software Foundation, either version 3 of the
-License, or (at your option) any later version.
+<li>This program is free software: released under Creative Commons Zero
+(CC0) license
 </li>
 
 <li>Program author:
 <ul class="org-ul">
 <li>Svjatoslav Agejenko
 </li>
-<li>Homepage: <a href="http://svjatoslav.eu">http://svjatoslav.eu</a>
+<li>Homepage: <a href="https://svjatoslav.eu">https://svjatoslav.eu</a>
 </li>
 <li>Email: <a href="mailto://svjatoslav@svjatoslav.eu">mailto://svjatoslav@svjatoslav.eu</a>
 </li>
 </ul>
 </li>
 
-<li><a href="http://www.svjatoslav.eu/projects/">Other software projects hosted at svjatoslav.eu</a>
+<li><a href="https://www.svjatoslav.eu/projects/">Other software projects hosted at svjatoslav.eu</a>
 </li>
 </ul>
 </div>
@@ -230,17 +225,21 @@ License, or (at your option) any later version.
 <h3 id="sec-1-1"><span class="section-number-3">1.1</span> Source code</h3>
 <div class="outline-text-3" id="text-1-1">
 <ul class="org-ul">
-<li><a href="http://www2.svjatoslav.eu/gitweb/?p=sixth-data.git;a=snapshot;h=HEAD;sf=tgz">Download latest snapshot in TAR GZ format</a>
+<li><a href="https://www2.svjatoslav.eu/gitweb/?p=sixth-data.git;a=snapshot;h=HEAD;sf=tgz">Download latest snapshot in TAR GZ format</a>
 </li>
 
-<li><a href="http://www2.svjatoslav.eu/gitweb/?p=sixth-data.git;a=summary">Browse Git repository online</a>
+<li><a href="https://www2.svjatoslav.eu/gitweb/?p=sixth-data.git;a=summary">Browse Git repository online</a>
 </li>
 
 <li>Clone Git repository using command:
 <pre class="example">
-git clone http://www2.svjatoslav.eu/git/sixth-data.git
+git clone https://www2.svjatoslav.eu/git/sixth-data.git
+
 </pre>
 </li>
+
+<li>See <a href="https://www3.svjatoslav.eu/projects/sixth-data/apidocs/">JavaDoc</a>.
+</li>
 </ul>
 </div>
 </div>
@@ -250,115 +249,137 @@ git clone http://www2.svjatoslav.eu/git/sixth-data.git
 <h2 id="sec-2"><a id="ID-f6764282-a6f6-44e6-8716-b428074dd093" name="ID-f6764282-a6f6-44e6-8716-b428074dd093"></a><span class="section-number-2">2</span> Vision / goal</h2>
 <div class="outline-text-2" id="text-2">
 <p>
-Provide versioned, clustered, flexible, distributed, multi-dimensional
-data storage engine for the <a href="http://www2.svjatoslav.eu/gitbrowse/sixth/doc/index.html">Sixth computation engine</a>.
+Provide hackable, versioned, optimized, distributed, geometrical,
+arbitrary dimensional (<a href="#sec-4">hypercube based</a>) data storage and computation
+engine (<a href="#sec-3-1">as inspired by the brain</a>) for general purpose visual computing
+environment called <a href="http://www2.svjatoslav.eu/gitbrowse/sixth/doc/index.html">Sixth</a>.
 </p>
 
-<ul class="org-ul">
-<li>Speaking of traditional relational database and object oriented
-business applications:
-
-<ul class="org-ul">
-<li>I hate object-relational impedance mismatch.
-</li>
-
-<li>I don't like to convert data between persistent database and
-runtime objects for every transaction. How about creating united
-database/computation engine instead to:
-</li>
-
-<li>Eliminate constant moving and converting of data between 2 systems
-and make computing happen close to where the data is stored.
-</li>
-
-<li>Abstract away difference between RAM VS persistent storage. Let
-the system decide at runtime which data to keep in what kind of
-memory.
-</li>
-</ul>
-</li>
-</ul>
+<p>
+Because <a href="http://www.paulgraham.com/rootsoflisp.html">Lisp is hackable self defined programmable programming
+language</a> it would be used to provide <a href="https://en.wikipedia.org/wiki/Imperative_programming">imperative programming</a> support.
+</p>
 </div>
 </div>
-
 <div id="outline-container-sec-3" class="outline-2">
-<h2 id="sec-3"><span class="section-number-2">3</span> Inspiration</h2>
+<h2 id="sec-3"><a id="ID-0fa6354b-18c9-4120-bbf5-c7239aebecab" name="ID-0fa6354b-18c9-4120-bbf5-c7239aebecab"></a><span class="section-number-2">3</span> Inspiration</h2>
 <div class="outline-text-2" id="text-3">
 <ul class="org-ul">
-<li>Relational databases:
-<ul class="org-ul">
-<li>Transactional.
+<li>see also: <a href="https://en.wikipedia.org/wiki/OLAP_cube">OLAP cube</a>.
 </li>
-<li>Indexable / Quickly searchable.
+</ul>
+</div>
+<div id="outline-container-sec-3-1" class="outline-3">
+<h3 id="sec-3-1"><a id="ID-d2375acc-af14-4f18-8ad0-7949501178c5" name="ID-d2375acc-af14-4f18-8ad0-7949501178c5"></a><span class="section-number-3">3.1</span> Brain</h3>
+<div class="outline-text-3" id="text-3-1">
+<ul class="org-ul">
+<li>Brain appears to be natural geometrical/parallel data storage and
+computational engine:
+<ul class="org-ul">
+<li><a href="https://www.quantamagazine.org/the-brain-maps-out-ideas-and-memories-like-spaces-20190114/">https://www.quantamagazine.org/the-brain-maps-out-ideas-and-memories-like-spaces-20190114/</a>
 </li>
 </ul>
 </li>
 
-<li>Git (version control system)
-<ul class="org-ul">
-<li>Versionable
+<li>Even more awesome is that brain appears to operate and is wired as
+arbitrary/variable dimensional structure:
+<a href="https://singularityhub.com/2017/06/21/is-there-a-multidimensional-mathematical-world-hidden-in-the-brains-computation/">https://singularityhub.com/2017/06/21/is-there-a-multidimensional-mathematical-world-hidden-in-the-brains-computation/</a>
 </li>
-<li>Branchable / mergeable.
+
+<li>On top of this, this multidimensional space that brain represents
+has dynamic/variable resolution/density:
+<ul class="org-ul">
+<li><a href="https://www.quantamagazine.org/goals-and-rewards-redraw-the-brains-map-of-the-world-20190328">https://www.quantamagazine.org/goals-and-rewards-redraw-the-brains-map-of-the-world-20190328</a>
 </li>
-<li>Transparent cansistency, checksumming and deduplication.
+</ul>
 </li>
-<li>(Git as a database:
+
+<li>Such properties allow parallel <a href="#sec-5">Geometrical computation</a> and
+beautifully fits <a href="#sec-3-2">CM-1 Connection Machine</a> architecture (for extra
+hardware accelerated solution).
 </li>
 </ul>
+</div>
+</div>
+
+<div id="outline-container-sec-3-2" class="outline-3">
+<h3 id="sec-3-2"><a id="ID-01aa65c1-3d44-44a8-9b90-58454bc6be80" name="ID-01aa65c1-3d44-44a8-9b90-58454bc6be80"></a><span class="section-number-3">3.2</span> CM-1 Connection Machine</h3>
+<div class="outline-text-3" id="text-3-2">
 <p>
-<a href="https://www.kenneth-truyers.net/2016/10/13/git-nosql-database/">https://www.kenneth-truyers.net/2016/10/13/git-nosql-database/</a> )
+<a href="https://en.wikipedia.org/wiki/Connection_Machine">https://en.wikipedia.org/wiki/Connection_Machine</a>
 </p>
-</li>
-</ul>
+
+<p>
+Massively parallel (thousands of CPUs) connected via
+machine's internal 12-dimensional hypercube network allows to
+efficiently simulate arbitrary dimensional hypercube and network
+topology between computational units. So that when we are
+solving/simulating for example 5 dimensional problem, we can arrange
+computational units into virtual 5D network. See:
+<a href="http://www.mission-base.com/tamiko/theory/cm_txts/di-ch2.html">http://www.mission-base.com/tamiko/theory/cm_txts/di-ch2.html</a>
+</p>
+
+<p>
+we can pre-distribute data across computation units and perform
+parallel <a href="#sec-5">geometrical computation</a>.
+</p>
+</div>
+</div>
 </div>
 
-<div id="outline-container-sec-3-1" class="outline-3">
-<h3 id="sec-3-1"><a id="ID-d2375acc-af14-4f18-8ad0-7949501178c5" name="ID-d2375acc-af14-4f18-8ad0-7949501178c5"></a><span class="section-number-3">3.1</span> Brain</h3>
-<div class="outline-text-3" id="text-3-1">
-<ul class="org-ul">
-<li>Appears to have more than 3D dimensional design. Food for
-thought&#x2026;)
+<div id="outline-container-sec-4" class="outline-2">
+<h2 id="sec-4"><a id="ID-96116550-a6a1-4700-bef7-865d0deee7ea" name="ID-96116550-a6a1-4700-bef7-865d0deee7ea"></a><span class="section-number-2">4</span> Reasons for hypercube as a so called first class citizen</h2>
+<div class="outline-text-2" id="text-4">
 <ul class="org-ul">
-<li><a href="https://singularityhub.com/2017/06/21/is-there-a-multidimensional-mathematical-world-hidden-in-the-brains-computation/">https://singularityhub.com/2017/06/21/is-there-a-multidimensional-mathematical-world-hidden-in-the-brains-computation/</a>
-</li>
-</ul>
+<li>Hypercube is quite general purpose data structure that naturally
+encapsulates wide variety data and problems.
 </li>
 
-<li>It directly inspires following ideas
-<ul class="org-ul">
-<li><a href="#sec-4-1">Distributed comutation and data storage</a>
+<li>Nicely captures apparent <a href="#sec-3-1">properties of the brain</a>.
 </li>
-<li><a href="#sec-4-2">Mapping of hyperspace to traditional object-oriented model</a>
+
+<li>Naturally supports distributed and parallel <a href="#sec-5">geometrical data storage
+and computation.</a>
 </li>
-<li><a href="#sec-4-3">Handling of relations</a>
+
+<li>Dedicated hardware like <a href="#sec-3-2">CM-1</a> can be built around hypercube concept
+that results in data, computation process and hardware, all
+beautifully fitting together while complementing each other
+strengths.
 </li>
-</ul>
+
+<li>Hypercube stored data (and computation process) has geometry by its
+nature and should fit nicely with "3D first" user interface ideology
+of the parent <a href="http://www2.svjatoslav.eu/gitbrowse/sixth/doc/index.html">Sixth</a> project.
 </li>
 </ul>
 </div>
 </div>
+<div id="outline-container-sec-5" class="outline-2">
+<h2 id="sec-5"><a id="ID-171fe375-c737-41e6-b429-a414f6abc5d8" name="ID-171fe375-c737-41e6-b429-a414f6abc5d8"></a><span class="section-number-2">5</span> Geometrical computation idea</h2>
+<div class="outline-text-2" id="text-5">
 </div>
-<div id="outline-container-sec-4" class="outline-2">
-<h2 id="sec-4"><span class="section-number-2">4</span> Ideas</h2>
-<div class="outline-text-2" id="text-4">
-</div><div id="outline-container-sec-4-1" class="outline-3">
-<h3 id="sec-4-1"><a id="ID-5d287158-53ea-44a2-a754-dd862366066a" name="ID-5d287158-53ea-44a2-a754-dd862366066a"></a><span class="section-number-3">4.1</span> Distributed computation and data storage</h3>
-<div class="outline-text-3" id="text-4-1">
+<div id="outline-container-sec-5-1" class="outline-3">
+<h3 id="sec-5-1"><a id="ID-5d287158-53ea-44a2-a754-dd862366066a" name="ID-5d287158-53ea-44a2-a754-dd862366066a"></a><span class="section-number-3">5.1</span> Distributed computation and data storage</h3>
+<div class="outline-text-3" id="text-5-1">
 <p>
-Maybe every problem can be translated to geometry (use any shapes and
-as many dimensions as you need). Solution(s) to such problems would
-then appear as relatively simple search/comparison/lookup results. As
-a bonus, such geometrical *data storage* AND *computation* can be
-naturally made in *parallel* and *distributed*. That's what neurons in
-the brain appear to be doing ! :) . Learning means building/updating
-the model (the hard part). Question answering is making (relatively
-simple) lookups (geometrical queries) against the model.
+Lots of problems can be translated to geometry (use any shapes and as
+many dimensions as you need). Solution(s) to such problems could be
+then found via geometrical search/comparison/lookup results. As a
+bonus, such geometrical *data storage* AND *computation* can be
+naturally made in *parallel* and *distributed*.
+</p>
+
+<p>
+Learning means building/updating/re-balancing the model (the hard
+part). Question answering is making (relatively simple) lookups
+(geometrical queries) against the model.
 </p>
 </div>
 </div>
-<div id="outline-container-sec-4-2" class="outline-3">
-<h3 id="sec-4-2"><a id="ID-a117c11e-97c1-4822-88b2-9fc10f96caec" name="ID-a117c11e-97c1-4822-88b2-9fc10f96caec"></a><span class="section-number-3">4.2</span> Mapping of hyperspace to traditional object-oriented model</h3>
-<div class="outline-text-3" id="text-4-2">
+<div id="outline-container-sec-5-2" class="outline-3">
+<h3 id="sec-5-2"><a id="ID-a117c11e-97c1-4822-88b2-9fc10f96caec" name="ID-a117c11e-97c1-4822-88b2-9fc10f96caec"></a><span class="section-number-3">5.2</span> Mapping hypercube to object-oriented model and relational database</h3>
+<div class="outline-text-3" id="text-5-2">
 <p>
 Object oriented programming is inspired by the way human mind
 operates. It allows programmer to express ideas to computer in a more
@@ -366,119 +387,78 @@ human-like terms.
 </p>
 
 <p>
-It is possible to map object model to geometrical hyperspace:
+It is actually also possible to map object model and relational
+database to geometrical hyperspace:
 </p>
 
 <ul class="org-ul">
-<li>Object is a point in space (universe). Each object member variable
-translates to its own dimension. That is: if class declares 4
-variables for an object, then corresponding object can be stored as
-a single point inside 4 dimensional space. Variable values translate
-to point coordinates in space. That is: Integer, floating point
-number and even boolean and string can be translated to linear value
-that can be used as a coordinate along particular dimension.
+<li>Object or database table row is a point in hypercube arbitrary
+dimensional space. Each object member variable or database table
+column can be mapped to its own dimension in hypercube. That is: if
+class declares 4 variables for an object, then corresponding object
+can be stored as a single point inside 4 dimensional
+hypercube. Variable values translate to point coordinates in that
+hypercube. That is: numbers and string can be translated to linear
+value that can be used as a coordinate along particular dimension.
 </li>
 
-<li>Each class declares its own space (universe). All class instances
-(objects) are points inside that particular universe. References
-between objects of different types are hyperlinks (portals) between
-different universes.
+<li>Each object class or database table declares its own hypercube that
+contain instances (objects) of that class or rows of a table.
 </li>
 </ul>
 </div>
 </div>
-<div id="outline-container-sec-4-3" class="outline-3">
-<h3 id="sec-4-3"><a id="ID-b6b15bd2-c78b-4c51-a343-72843a515c29" name="ID-b6b15bd2-c78b-4c51-a343-72843a515c29"></a><span class="section-number-3">4.3</span> Handling of relations</h3>
-<div class="outline-text-3" id="text-4-3">
+
+<div id="outline-container-sec-5-3" class="outline-3">
+<h3 id="sec-5-3"><a id="ID-b6b15bd2-c78b-4c51-a343-72843a515c29" name="ID-b6b15bd2-c78b-4c51-a343-72843a515c29"></a><span class="section-number-3">5.3</span> Mapping entity relations in hypercube</h3>
+<div class="outline-text-3" id="text-5-3">
 <p>
-Consider we want to create database of books and authors. Book can
-have multiple authors, and single person can be author for multiple
-books. It is possible to store how many hours of work each author has
-contributed to every book, using hyperspace as follows:
+Consider we want to create database of:
 </p>
-
-<ul class="org-ul">
-<li>Every dimension corresponds to one particular book author. (10
-authors in the database, would require 10 dimensional space)
 <ul class="org-ul">
-<li>Point in space corresponds to one particular book.
-<ul class="org-ul">
-<li>Point location along particular (author) dimension corresponds
-to amount of work contributed by particular author for given
-book.
+<li>Books.
 </li>
-</ul>
+<li>Authors.
 </li>
-</ul>
+<li>Effort: Amount of time contributed by every author to every book
+that he/she wrote.
 </li>
 </ul>
 
 <p>
-Alternatively:
+Information above can be represented as 3D cube where dimensions are:
 </p>
-
-<ul class="org-ul">
-<li>Every dimension corresponds to one particular book.
 <ul class="org-ul">
-<li>Point in space corresponds to one particular author in the entire
-database.
-<ul class="org-ul">
-<li>Point location along particular (book) dimension corresponds to
-amount of work contributed for book by given author (point).
+<li>X: Book
 </li>
-</ul>
+<li>Y: Author
 </li>
-</ul>
+<li>Z: Effort
 </li>
 </ul>
-</div>
-</div>
 
-<div id="outline-container-sec-4-4" class="outline-3">
-<h3 id="sec-4-4"><span class="section-number-3">4.4</span> Layered architecture</h3>
-<div class="outline-text-3" id="text-4-4">
-<dl class="org-dl">
-<dt> layer 1 </dt><dd>disk / block storage / partition
-</dd>
-
-<dt> layer 2 </dt><dd>key/value storage. Keys are unique and are dictated by
-storage engine. Value is arbitrary but limited size byte
-array. This layer is responsible for handling disk
-defragmentation and consistency in case of crash
-recovery.
-</dd>
-
-<dt> layer 3 </dt><dd>key/value storage. Keys are content hashes. Values are
-arbitrary but limited size content byte arrays. This
-layer effectively implements content addressable
-storage. Content addressible storage enables GIT-like
-behavior (possibility for competing branches, retaining
-history, transparent deduplication)
-</dd>
-
-<dt> layer 4 </dt><dd>Implements arbitrary dimensional multiverse.
-</dd>
-
-<dt> layer 5 </dt><dd>Distributed computation engine.
-</dd>
-</dl>
+<p>
+Points in that cube would nicely capture many to many relations
+between authors and the books.
+</p>
 </div>
 </div>
 </div>
-<div id="outline-container-sec-5" class="outline-2">
-<h2 id="sec-5"><span class="section-number-2">5</span> Current status</h2>
-<div class="outline-text-2" id="text-5">
+<div id="outline-container-sec-6" class="outline-2">
+<h2 id="sec-6"><span class="section-number-2">6</span> Current status</h2>
+<div class="outline-text-2" id="text-6">
 <ul class="org-ul">
 <li>More or less defined <a href="#sec-2">Vision / goal</a>.
 </li>
 
-<li>Collected some <a href="#sec-3-1">ideas</a>.
+<li>Collected some <a href="#sec-3">inspiring</a> <a href="#sec-5">ideas</a>.
 </li>
 
 <li>Implemented very simple persistent key-value map.
 <ul class="org-ul">
 <li>Long term goal is to use it as a backing storage engine and
-implement more advanced features on top of this.
+implement more advanced features on top of this via layered
+architecture.
 </li>
 </ul>
 </li>
@@ -486,40 +466,87 @@ implement more advanced features on top of this.
 </div>
 </div>
 
-<div id="outline-container-sec-6" class="outline-2">
-<h2 id="sec-6"><span class="section-number-2">6</span> See also</h2>
-<div class="outline-text-2" id="text-6">
+<div id="outline-container-sec-7" class="outline-2">
+<h2 id="sec-7"><span class="section-number-2">7</span> See also</h2>
+<div class="outline-text-2" id="text-7">
 <p>
 Interesting or competing projects with good ideas:
 </p>
 
 <ul class="org-ul">
-<li>GRAKN.AI: database in the form of a knowledge graph that uses
-machine reasoning to simplify data processing challenges for AI
-applications.
+<li><a href="https://github.com/vygr/ChrysaLisp">ChrysaLisp</a>
+<ul class="org-ul">
+<li>Assembler/C-Script/Lisp 64 bit, MIMD, multi CPU, multi threaded,
+multi core, multi user Parallel OS. With GUI, Terminal, OO
+Assembler, Class libraries, C-Script compiler, Lisp interpreter,
+Debugger, and more&#x2026;
+</li>
+</ul>
+</li>
+
+<li><a href="#sec-3-2">CM-1 Connection Machine</a>
+</li>
+
+<li><a href="http://esug.org/data/ESUG2015/3%20wednesday/1100-1130%20SQL%20Queries%20on%20Smalltalk%20Objects/SQL%20Queries%20in%20Smalltalk%20(James%20Foster).pdf">Gemstone/S</a>
+<ul class="org-ul">
+<li>Completely distributed smalltalk based computing
+system.
+</li>
+</ul>
+</li>
+
+<li><a href="https://gtoolkit.com/">Glamorous Toolkit</a>
+<ul class="org-ul">
+<li>Moldable development environment. It is a live notebook. It is a
+flexible search interface. It is a fancy code editor. It is a
+software analysis platform. It is a data visualization engine. All
+in one.
+</li>
+</ul>
+</li>
+
+<li>GRAKN.AI
+<ul class="org-ul">
+<li>database in the form of a knowledge graph that uses machine
+reasoning to simplify data processing challenges for AI
+applications. <a href="https://grakn.ai/">https://grakn.ai/</a>
+</li>
+</ul>
+</li>
+
+<li><a href="http://phantomos.org/">http://phantomos.org/</a>
+<ul class="org-ul">
+<li>Programs run forever. System crash or reboot does not destroy
+state of running program.
+</li>
+</ul>
+</li>
+
+<li><a href="http://wiki.squeak.org/squeak/2665">Magma</a>
 <ul class="org-ul">
-<li><a href="https://grakn.ai/">https://grakn.ai/</a>
+<li>Multi-user object database for Squeak
 </li>
 </ul>
 </li>
 
-<li>Gemstone/S based on Smalltalk.
+<li>Taichi: A Language for High-Performance Computation onSpatially
+Sparse Data Structures
 <ul class="org-ul">
-<li><a href="http://esug.org/data/ESUG2015/3%20wednesday/1100-1130%20SQL%20Queries%20on%20Smalltalk%20Objects/SQL%20Queries%20in%20Smalltalk%20(James%20Foster)">http://esug.org/data/ESUG2015/3%20wednesday/1100-1130%20SQL%20Queries%20on%20Smalltalk%20Objects/SQL%20Queries%20in%20Smalltalk%20(James%20Foster)</a>.pdf
+<li><a href="http://taichi.graphics/wp-content/uploads/2019/09/taichi_lang.pdf">http://taichi.graphics/wp-content/uploads/2019/09/taichi_lang.pdf</a>
 </li>
 </ul>
 </li>
 
-<li>Magma distributed database in Smalltalk.
+<li><a href="http://www.uruk.org/emu/Taos.html">TAOS</a>
 <ul class="org-ul">
-<li><a href="http://wiki.squeak.org/squeak/2665">http://wiki.squeak.org/squeak/2665</a>
+<li>Completely distributed operating system/virtual machine:
 </li>
 </ul>
 </li>
 
-<li>ZetaVM
+<li><a href="https://tiledb.com/">TileDB</a>
 <ul class="org-ul">
-<li><a href="https://github.com/zetavm/zetavm">https://github.com/zetavm/zetavm</a>
+<li>Analyze and share complex multi-dimensional data at scale
 </li>
 </ul>
 </li>
@@ -538,26 +565,27 @@ applications.
 <li><a href="#sec-3">3. Inspiration</a>
 <ul class="nav">
 <li><a href="#sec-3-1">3.1. Brain</a></li>
+<li><a href="#sec-3-2">3.2. CM-1 Connection Machine</a></li>
 </ul>
 </li>
-<li><a href="#sec-4">4. Ideas</a>
+<li><a href="#sec-4">4. Reasons for hypercube as a so called first class citizen</a></li>
+<li><a href="#sec-5">5. Geometrical computation idea</a>
 <ul class="nav">
-<li><a href="#sec-4-1">4.1. Distributed computation and data storage</a></li>
-<li><a href="#sec-4-2">4.2. Mapping of hyperspace to traditional object-oriented model</a></li>
-<li><a href="#sec-4-3">4.3. Handling of relations</a></li>
-<li><a href="#sec-4-4">4.4. Layered architecture</a></li>
+<li><a href="#sec-5-1">5.1. Distributed computation and data storage</a></li>
+<li><a href="#sec-5-2">5.2. Mapping hypercube to object-oriented model and relational database</a></li>
+<li><a href="#sec-5-3">5.3. Mapping entity relations in hypercube</a></li>
 </ul>
 </li>
-<li><a href="#sec-5">5. Current status</a></li>
-<li><a href="#sec-6">6. See also</a></li>
+<li><a href="#sec-6">6. Current status</a></li>
+<li><a href="#sec-7">7. See also</a></li>
 </ul>
 </div>
 </nav>
 </div></div></div>
 <footer id="postamble" class="">
 <div><p class="author">Author: Svjatoslav Agejenko</p>
-<p class="date">Created: 2018-06-23 Sat 22:30</p>
-<p class="creator"><a href="http://www.gnu.org/software/emacs/">Emacs</a> 25.1.1 (<a href="http://orgmode.org">Org-mode</a> 8.2.10)</p>
+<p class="date">Created: 2020-06-20 Sat 03:28</p>
+<p class="creator"><a href="http://www.gnu.org/software/emacs/">Emacs</a> 26.1 (<a href="http://orgmode.org">Org-mode</a> 9.1.9)</p>
 </div>
 </footer>
 </body>
