1. The SADE mini-project of the EGI DARIAH Competence Centre
Giuseppe LA ROCCA
INFN
EGI Community Forum 2015
Bari, Italy

2. Introduction to the SADE mini-project
Outline
Introduction to the SADE mini-project
INFN contributions in the EGI DARIAH CC
Development of gLibrary 2.0
The Node.Js API Framework LoopBack
Customization of the Simple/Parallel Semantic Search Engine (SSE)
Future activities
Summary & Conclusions
EGI Community Forum November 2015, Bari, Italy

3. Storing and Accessing DARIAH (SADE) contents in EGI
The overall goal of this mini-project is to create a digital repository of DARIAH contents using
Datasets for this CC are provided by the Austrian Academic of Science (AAS)
Headwords (about 50,000 A-Z) [1]
Records (about 40,000 plants; about 70,000 in general) [2]
Multimedia with Link to Audio-file (examples; to be improved) [3]
Multimedia with Collection (about 3,000; planned to be published within the mini-project) [4]
Multimedia connected to Headword (about 3,000; planned to be digitized) [5]
Project specific biographies [6]
Locations [7]
EGI Community Forum November 2015, Bari, Italy

4. in a nutshell
gLibrary is a platform developed by INFN that provides a simple yet powerful system to organize, search, store and retrieve “digital assets” in distributed repositories built on Grid/Cloud/local storage infrastructures
hides the underlying technical details to the users
“digital assets”:
digital object + corresponding metadata
EGI Community Forum November 2015, Bari, Italy

5. gLibrary 1.0 Architecture
eToken
service
Front ends
glibrary.ct.infn.it
REST API
AuthN / AuthZ
Science Gateway
User Tracking DB
Call gLibrary REST API through
API Server Gateway
Metadata Service
Local storage
Grid storage
Cloud Storage
Authorization I
EGI Community Forum November 2015, Bari, Italy

6. gLibrary 2.0 Architecture
eToken
service
glibrary.ct.infn.it
REST API
User Tracking DB
Local storage
Grid storage
Cloud Storage
Local DB for repo
SQL and/or NoSQL DBs
EGI Community Forum November 2015, Bari, Italy

7. gLibrary 2.0 features Removed AMGA + PostgreSQL dependency
In gLibrary 2.0 each repo can be configured to store metadata in a local DB or remote DBs
Not tied anymore to a given DB for metadata. We can use:
PostgreSQL
MySQL
MongoDB
Oracle
SQL Server
Community connectors: CouchDB, SQLite, ArangoDB, etc.
gLibrary 2.0 (code and doc) on and
EGI Community Forum November 2015, Bari, Italy

8. The Parallel Semantic Search Engine (SSE)
The Semantic Search Engine (SSE) is a framework conceived to demonstrate the potential of Open Access Data infrastructures coupled with semantic web technologies to address the issues of data discovery and correlation
The framework aims to develop an open access infrastructure for linking scientists and scientific data/information resources
The SSE framework has been developed within the CHAIN-REDS project
The Semantic Search Engine (code and doc) on and 8
CHAIN-REDS School on Cloud Computing, Catania
EGI Community Forum November 2015, Bari, Italy

9. The Architecture of the SSE
Linked-data search engine
Semantic-web enrichment
Harvester
(running on
grid/cloud)
Harvester
(running on
grid/cloud)
OAI-PMH
End-points
OAI-PMH
Data Repos.
OADRs 9
CHAIN-REDS School on Cloud Computing, Catania
EGI Community Forum November 2015, Bari, Italy

10. Semantic enrichment
EGI Community Forum November 2015, Bari, Italy

11. The Parallel Semantic Search Engine for EGI DARIAH CC
More than 30 million resources, almost 600 million triples
EGI Community Forum November 2015, Bari, Italy

12. Future activities
Semantically enrich and correlate present Linked Data
CHAIN-REDS KB, OpenAgris, Europeana, Isidore, PubMed, Cultura italia and Engage
with: GENONAMES, GERMANET, ISLEX, DBPEDIA, etc.
Extend the ontology based on Protègè to include DARIAH-specific knowledge
Add to the current functionalities
Google Scholar and LodLive
others required by DARIAH:
GIS, GeoBrowser
EGI Community Forum November 2015, Bari, Italy

13. Summary & Conclusions
The gLibrary framework has been enhanced to better support the requirements coming from the A&H VRC
The Parallel Semantic Search Engine is under development to include the new requested user scenarios and domain-specific contents and Linked Data
EGI Community Forum November 2015, Bari, Italy