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gnowledge studio is a python django project for collaboratively creating and publishing knowledge (semantic) networks as blogging graphs.

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README.rst

GNOWSYS Studio

A collaborative workspace (studio) for constructing and publishing semantic knowledge networks and ontologies.

Features

The application is devided into two sub-apps. Gstudio and Objectapp. The former includes classes for organizing the network or constructing an ontology. The latter includes classes for holding the instances of object-types, process-types and system-types.

Gstudio Components

  • Metatypes

    To hold Classes which have other classes as its members. e.g. "abstract noun", "adjective", "phylem", "class", "genus", "species" etc.

  • Object types

    To hold Classes: e.g. "thing", "being", "living being", "animals", "cat", "place", "person" etc.

  • Relation types

To define binary relations (object properties) between classes and objects. e.g., "part of", "friend of", "composed of", "located in" etc. * Attribute types

To define datatype properties for classes and objects. e.g., "population", "size", "length", "height", "first name", "phone number" etc.
  • System types

    To bring together some of the classes into a system or an ontology, a collection of the types defined above for convenience. You can bring together the required classes, relations and attributes into

  • Process types

    To define a process as prior and post states of classes or objects.

  • Attributes

    To store attributes

  • Relations

    To store binary relations

  • Node Specification

    A node specified (described) by its relations or attributes or both.

  • Relation Specification

    To create an expression using a relation with a subject, e.g., "friend of Tom", "components of a cell" etc.

  • Attribute Specification

    To specify an attribute by a subject to say for example: population of India, color of a flower etc. These do not yeild a proposition but an expression, which can be used as a subject in another sentence.

  • Expression

    Expression is more like a relation between two terms, but it does not yeild a proposition, e.g., "Researchers in India", "students residing in India" etc. It is modelled more like relation class, except that the result is not a proposition/triple.

  • Union

    To define a class by a union relation between two or more classes.

  • Complement

    To define a class as a compleemnt of two or more classes.

  • Intersection

    To define a class as an intersection between two or more classes.

Objectapp Components

  • Objects

    To hold the instances of Object types: "Mumbai", "Tom" etc.

  • Systems

    To hold the instances of System types.

  • Processes

    To hold the instances of processes.

Online Collaborative Platform

The application is built as a collaborative on line platform with the following features.

Version Control

All the changes by the users will be recorded. This feature is implemented using using django-reversion.

User Registration

Basic registration, authentication mechanism.

Network Navigation using SVG graphs

  • neighbourhood graphs and concept graphs

Other Semantic Web features

  • data in RDF format
  • rdf feed to a triple store
  • sparql endpoint

Features to be implemented

  • export and import of standard knowledge representation languages: CL, OWL, XTM etc.

Features adopted from Django-Blog-Zinnia

The following features are adopted from django-blog-zinnia code base with a lot of gratitude. Thanks to an excellent codebase of django-blog-zinnia, which taught us best software development practices as well! After reviewing each feature for the purpose of semantic blogging, we will retain or extend the following features.

  • Comments
  • Sitemaps
  • Archives views
  • Related entries
  • Private entries
  • RSS or Atom Feeds
  • Tags
  • Advanced search engine
  • Prepublication and expiration
  • Edition in MarkDown, Textile or reStructuredText
  • Widgets (Popular entries, Similar entries, ...)
  • Spam protection with Akismet or TypePad
  • Admin dashboard
  • MetaWeblog API, xmlrpc
  • Ping Directories
  • Ping External links
  • Bit.ly support
  • Twitter support
  • Gravatar support
  • Django-CMS plugins
  • Collaborative work
  • Tags autocompletion
  • Entry model extendable
  • Pingback/Trackback support
  • Blogger conversion utility
  • WordPress conversion utility
  • WYMeditor, TinyMCE and MarkItUp support
  • Ready to use and extendables templates
  • Windows Live Writer compatibility

Examples

A sandbox site will give you a preview of the application. Visit http://sbox.gnowledge.org/

Project Page

The project management is done from Savannah: https://savannah.gnu.org/projects/gnowsys/

Mailing list

Join this list if you are intersted in using or contributing as a hacker.

http://gnowledge.org/cgi-bin/mailman/listinfo/gnowsys-dev

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