X-Git-Url: http://www2.svjatoslav.eu/gitweb/?a=blobdiff_plain;f=doc%2Findex.org;h=caa29aa68ff459f2cf4c98dfb5808582001817b0;hb=b382105757c3d9a2bb528fa8e4218354feff2429;hp=f61f0c096c461ac13d750b6eaca69edd3569ef7e;hpb=45c3bd94e38fc74268429d4441e730aec28492bf;p=sixth-data.git
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-----
- This is a subproject of [[http://www2.svjatoslav.eu/gitbrowse/sixth/doc/index.html][Sixth]]
-- [[http://www2.svjatoslav.eu/gitweb/?p=sixth.git;a=snapshot;h=HEAD;sf=tgz][download latest snapshot]]
+- [[http://www2.svjatoslav.eu/gitweb/?p=sixth-data.git;a=snapshot;h=HEAD;sf=tgz][download latest snapshot]]
- This program is free software; you can redistribute it and/or modify
it under the terms of version 3 of the [[https://www.gnu.org/licenses/lgpl.html][GNU Lesser General Public
@@ -14,10 +14,145 @@
- Homepage: http://svjatoslav.eu
- Email: mailto://svjatoslav@svjatoslav.eu
-- [[http://svjatoslav.eu/programs.jsp][other applications hosted at svjatoslav.eu]]
+- [[http://www.svjatoslav.eu/programs.jsp][other applications hosted at svjatoslav.eu]]
+
+
+* (document settings) :noexport:
+** use dark style for TWBS-HTML exporter
+#+HTML_HEAD:
+#+HTML_HEAD:
+#+HTML_HEAD: "
+#+HTML_HEAD:
+
+* Vision / goal
+ :PROPERTIES:
+ :ID: f6764282-a6f6-44e6-8716-b428074dd093
+ :END:
+Provide versioned, clustered, flexible, distributed, multi-dimensional
+data storage engine for the [[http://www2.svjatoslav.eu/gitbrowse/sixth/doc/index.html][Sixth computation engine]].
+
++ Speaking of traditional relational database and object oriented
+ business applications:
+ + I hate object-relational impedance mismatch.
+
+ + 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:
+ + Eliminate constant moving and converting of data between 2 systems.
+ + Abstract away difference between RAM VS persistent storage. Let
+ the system decide at runtime which data to keep in what kind of
+ memory.
+
+* Inspiration
++ Relational databases:
+ + Transactional.
+ + Indexable / Quickly searchable.
+
++ Git (version control system)
+ + Versionable
+ + Branchable / mergeable.
+ + Transparent cansistency, checksumming and deduplication.
+ + (Git as a database:
+ https://www.kenneth-truyers.net/2016/10/13/git-nosql-database/ )
+
+** Brain
+ :PROPERTIES:
+ :ID: d2375acc-af14-4f18-8ad0-7949501178c5
+ :END:
++ Appears to have more than 3D dimensional design. Food for
+ thought...)
+ + https://singularityhub.com/2017/06/21/is-there-a-multidimensional-mathematical-world-hidden-in-the-brains-computation/
+
++ It directly inspires following ideas
+ + [[id:5d287158-53ea-44a2-a754-dd862366066a][Distributed comutation and data storage]]
+ + [[id:a117c11e-97c1-4822-88b2-9fc10f96caec][Mapping of hyperspace to traditional object-oriented model]]
+ + [[id:b6b15bd2-c78b-4c51-a343-72843a515c29][Handling of relations]]
+
+* Ideas
+** Distributed computation and data storage
+ :PROPERTIES:
+ :ID: 5d287158-53ea-44a2-a754-dd862366066a
+ :END:
+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.
+** Mapping of hyperspace to traditional object-oriented model
+ :PROPERTIES:
+ :ID: a117c11e-97c1-4822-88b2-9fc10f96caec
+ :END:
+Object oriented programming is inspired by the way human mind
+operates. It allows programmer to express ideas to computer in a more
+human-like terms.
+
+It is possible to map object model to geometrical hyperspace:
+
++ 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.
+
++ 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.
+** Handling of relations
+ :PROPERTIES:
+ :ID: b6b15bd2-c78b-4c51-a343-72843a515c29
+ :END:
+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:
+
++ Every dimension corresponds to one particular book author. (10
+ authors in the database, would require 10 dimensional space)
+ + Point in space corresponds to one particular book.
+ + Point location along particular (author) dimension corresponds
+ to amount of work contributed by particular author for given
+ book.
+
+Alternatively:
+
++ Every dimension corresponds to one particular book.
+ + Point in space corresponds to one particular author in the entire
+ database.
+ + Point location along particular (book) dimension corresponds to
+ amount of work contributed for book by given author (point).
* Current status
+- More or less defined [[id:f6764282-a6f6-44e6-8716-b428074dd093][Vision / goal]].
+
+- Collected some [[id:d2375acc-af14-4f18-8ad0-7949501178c5][ideas]].
+
- Implemented very simple persistent key-value map.
+ - Long term goal is to use it as a backing storage engine and
+ implement more advanced features on top of this.
+
+* See also
+Interesting or competing projects with good ideas:
+
++ GRAKN.AI: database in the form of a knowledge graph that uses
+ machine reasoning to simplify data processing challenges for AI
+ applications.
+ + https://grakn.ai/
+
++ Gemstone/S based on Smalltalk.
+ + http://esug.org/data/ESUG2015/3%20wednesday/1100-1130%20SQL%20Queries%20on%20Smalltalk%20Objects/SQL%20Queries%20in%20Smalltalk%20(James%20Foster).pdf
+
++ Magma distributed database in Smalltalk.
+ + http://wiki.squeak.org/squeak/2665
-Long term goal is to implement more advanced features on top of this.
++ ZetaVM
+ + https://github.com/zetavm/zetavm