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Geranium

Geranium is a system to empower the access to the Politecnico di Torino research activities (available within the IRIS portal) using semantic technologies and deep learning techniques applied on graphs.

The system consists of three main components:

  1. KG Generator: the goal of this component is to produce a KG from the JSON representation of IRIS data.
  2. Back-end: the goal of this component is to provide RESTful APIs to access data within the KG.
  3. Front-end: the goal of this component is to visualize and enable an interactive exploration of the results obtained from the back-end.

KG Generator

To generate the KG from the JSON representation of IRIS data, you can run the map.py script. The script offers many options, which can be reviewed by using the help option:

$ cd process
$ python map.py -h

The options for this script are the the following:

-b <json_file>        : builds a rdf file starting from a provided json file
-o <output_file>      : used to specify the output filename. If not specified, one including the timestamp is automatically provided
-n <number_of_topics> : used to specify the number of topics to extract with TellMeFirst from each abstract
-d                    : turn on debug messages
-f <file_format>      : used to specify the file format (XML by default)

Back-end

Install Python backend using conda environment

$ conda create -n geranium python=3.6
$ conda activate geranium
$ conda install requests
$ conda install -c conda-forge rdflib
$ conda install -c anaconda flask
$ pip install config
$ pip install langdetect

API

Start API

While in the conda environment:

python app.py

Get publications on a specific topic

Parameters:
  • type: publications
  • topic: "Encoded label of topic"
  • limit: "Number of lines"
  • offset: "Offset within the response"
Example:

http://localhost:5000/api?type=publications&topic=Carbon%20nanotube&lines=10000&offset=0

Get authors working on a specific topic

Parameters:
  • type: authors
  • topic: "Encoded label of topic"
  • limit: "Number of lines"
  • offset: "Offset within the response"
Example:

http://localhost:5000/api?type=authors&topic=Carbon%20nanotube&lines=10000&offset=0

Get details on a specific publication

Parameters:
  • type: publication
  • limit: "Number of lines"
  • offset: "Offset within the response"
  • url: "Encoded url of a publication"
Example:

http://localhost:5000/api?type=publication&lines=10000&offset=0&url=http://geranium-project.org/publications/11583/2647453

Get details on an author working on a specific topic

Parameters:
  • type: author
  • topic: "Encoded label of topic"
  • limit: "Number of lines"
  • offset: "Offset within the response"
  • url: "Encoded url of a researcher"
Example:

http://localhost:5000/api?type=author&topic=Carbon%20nanotube&lines=10000&offset=0&url=http://geranium-project.org/authors/rp07931

Get all topics

Parameters:
  • type: topics
  • limit: "Number of lines"
  • offset: "Offset within the response"
Example:

http://localhost:5000/api?type=topics&lines=100000&offset=0

Get abstract of a single topic

Parameters:
  • type: abstract
  • topic: DBpedia URI of the topic
Example:

http://localhost:5000/api?type=abstract&topic=http://dbpedia.org/resource/2D_computer_graphics

Frontend

The following commands are written for Debian 9.9, NodeJS v.12.6.0 and should be executed in sequence. Skip those unnecessary for your working environment, if needed.

NodeJS and NPM

 $ sudo apt install nodejs

Ionic framework

 $ sudo npm install -g ionic

Installation

Node Modules

  • Clone the repository
  • Navigate to website folder
  • Run $ npm i

Starting Ionic development server

  • Navigate to website folder
  • Run $ ionic serve

If compiling process is successful (Compiled successfully in console) a browser window will be automatically opened at the address of the local server. If not try the following address in your browser: localhost:8100.

To stop the development server press Ctrl-C.

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Empowering open publications using Semantics and Deep Learning

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