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ThemisB/Diavgeia_FinalReport.md

Created August 22, 2017 09:41
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Final Report of Diavgeia GSOC 2017
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Diavgeia_FinalReport.md

This is a final report of the work which was done as part of Diavgeia GSOC17 Project (https://github.com/eellak/gsoc17-diavgeia).

Abstract

Diavgeia is the greek transparency portal, which all government institutions are obliged to use, in order to upload their decisions online. In this GSoC project, i promoted even more its transparency and enhanced the functionality of the Diavgeia, by:

  • Creating a RDF Schema for the decisions of government institutions.
  • Using Blockchain technology (Bitcoin) to ensure immutability of decisions over time.
  • Providing a sample of RDF decisions expressed in Notation3(N3) complying to our rdf schema.
  • Creating a UI that government institutions can use to compose their N3 decisions using a html form.
  • Creating a tool for visualizing N3 decisions in a web browser.
  • Storing decisions to Apache Jena rdf store (TDB) and using Fuseki Server to provide a UI to citizens to pose SPARQL queries.
  • Reducing government documents size by a factor of 100.

To read more about the project, please pay a visit to the project website (https://eellak.github.io/gsoc17-diavgeia/) as well as to the extensive documentation provided in the repository (https://github.com/eellak/gsoc17-diavgeia/blob/master/README.md)

Work and Repository

All of my work can be found at this repository (https://github.com/eellak/gsoc17-diavgeia), which was created from scratch and does not rely on any previous code. My commits can be found here (https://github.com/eellak/gsoc17-diavgeia/commits/master?author=themisb)

Deliverables

Deliverables are independent functionality submodules and can be found here:

Project Progress

I kept weekly project progress report logs, which can be found here (https://github.com/eellak/gsoc17-diavgeia/blob/master/project_progress/progress.md)

Future Work

As stated in the repository and project's website, the following can be done:

  1. Bitcoin-Website Validator: Create a tool which ensures that all proof of burn blockchain transactions of Diavgeia are consistent with the merkle trees uploaded on Diavgeia's website.
  2. Bitcoin-SPARQL Validator: Find an efficient way to prove that all decisions that have been commited to blockchain are also available from the SPARQL endpoint.
  3. Improve Visualizer: Visualizer does not visualize rdf properties for each different decision type.
  4. Study scalability of SPARQL endpoint: As it was stated, Diavgeia hosts millions of decisions. A benchmark of the scalability of the Apache Jena and Fuseki is crucial.

Production Ready tools

As stated in the repository, the following can be applied to production:

  1. Bitcoin Application.
  2. RDF Schema (with the exception of the two decision types that have not been included (Law and PaymentFinalisation))
  3. N3-Composer.
  4. Visualizer (but it needs further improvement to visualize the specific decision properties, as stated in Future Work).
  5. SPARQL Endpoint.
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