The Lynx project aims to build a multilingual Legal Knowledge Graph (LKG) of European legal and regulatory open data to provide smart compliance services. The LKG will integrate annotated documents from different legal domains and jurisdictions into a single data structure represented in RDF and JSON-LD. The Lynx Services Platform will offer services like document summarization, search, named entity recognition, machine translation, and more to analyze legal documents from multiple languages. Pilot demonstrations will apply these services to areas like contract analysis and labor law compliance.

1. BUILDING THE LEGAL KNOWLEDGE GRAPH
FOR SMART COMPLIANCE SERVICES IN
MULTILINGUAL EUROPE
http://lynx-project.eu/
Lynx: an ecosystem of smart cloud
services to manage compliance
across jurisdictions and languages
Elena Montiel-Ponsoda and Patricia Martín-Chozas

2. The Lynx project
ICT14-2016-2017 (IA) Innovation action
Pillar: Industrial Leadership
Work Programme Year: H2020-2016-2017
Work Programme Part: Information and Communication Technologies
TOPIC : Big Data PPP: cross-sectorial and cross-lingual data integration and
experimentation
Duration: 40 months
Starting date: 1st December 2017
Estimated Project Cost: €3,638,065.00
Requested EU Contribution: €2,959,247.52
Project Officer: Johan BODENKAMP/Pierre-Paul SONDAG

3. The Lynx consortium

5. Our Aim

6. Our Mission
Smart services
to better manage
compliance
LKG of
European legal
and regulatory
open data
Multilingual and
multijurisdictional
data

7. Our Pilots
Contracts Analysis Labour Law Geothermal Energy
Compliance

8. The Legal Knowledge Graph
How to represent multilingual, multijurisdictional annotated
documents from different domains (law, standards…)? SoA...
Identification and description:
- ELI in EU and some member states
- Different identifiers in other member states
- Different for non-legislation
Content structuring:
- CEN Metalex, Akoma Ntoso (LegalDocML) in some
countries
- AKN4EU still draft, different formats for other
legislations
- ... and for other document types
Annotations:
- NIF prevailing, no consisting JSON-LD described

9. The Legal Knowledge Graph
The idea of Lynx document:
• One single data structure
• Data model is the LKG ontology
• Able to be validated with RDF Shapes
• Standard JSON-LD version
• Annotated with NIF

10. The Legal Knowledge Graph

11. The Legal Knowledge Graph
Beyond …
• Graph of documents
• ...linked to terminological data
• ...linked to other local entities
• ...linked to other external entities
http://lynx-project.eu/doc/lkg

12. Lynx Services Platform
• Summarisation
• Document Manager & Search Service
• Named Entity Recognition (NER)
• Machine Translation
• Relation/Geo/Time Extraction
• Similarity Service
• Annotation & Entity Linking
• Entity Extraction & Disambiguation
The LySP Services can be combined / configured by making use
of the LySP Workflow Manager.

13. Lynx Services Platform

14. tps://medium.com/semantic-tech-
x-service-platform-architecture-
f6
Lynx Services Platform

15. Terminology
Platform
• Pilot-specific terminologies
• Multilingual (de, en, es, nl)
• Terminology extraction +
info reuse from the
Linguistic Linked Open
Data cloud
• Represented in SKOS
• Accessible through
SPARQL Endpoint

16. Temporal Expression Service (1)
Finds the following types of expressions:
• DATE: April, 23/05, in 1998.
• TIME: At 2 o’clock, 5pm.
• SET: every Thursday, twice a month.
• DURATION: two days and a half, three years.
• INTERVALS (ongoing): From 3rd of April to 6th May.

17. Temporal Expression Service (2)
Once the previous expressions are found, they are normalized.
(...) In 19981 it increased exponentially; that summer2 (...)
(1) → 1998
(2) → summer of 1998 (1998-SU)

18. Temporal Expression Service (3)
Languages covered:
● Legal focused ruled-based approaches:
○ Spanish
○ English
○ German
● Standard external tool for:
○ Italian
○ Dutch
For more information, please check:
https://www.youtube.com/watch?v=6-CwPal2ArE

19. CONTACTS
CONSORTIUM
Ontology Engineering Group
Universidad Politécnica de Madrid
{emontiel, pmchozas}@fi.upm.es
Elena Montiel-Ponsoda
Patricia Martín-Chozas