lod2 plenary vienna 2012: wp9a - lod for a distributed marketplace for public sector contracts

EU-FP7 LOD2 WP10 – 22.-23.9.2011. 02.09.2010 . http://lod2.eu

Creating Knowledge out of Interlinked Data

http://lod2.eu

WP9a – LOD2 for a Distributed

Marketplace for Public Sector

Contracts

Plenary Meeting Vienna 21-23, March 2012 Vojtěch Svátek (UEP)

Collaborative Project 2010-2014

in Information and Communication Technologies

Project No. 257943

Start Date 01/09/2010

EU-FP7 LOD2 WP9a – 21.-23.3.2012. http://lod2.eu


1. Overall goals and status

2. Partners involved, tasks, deliverables and milestones

3. Achievements in M13-M18

4. Future plans

Agenda



• Explore and demonstrate the application of linked data principles for procuring

contracts in the public sector

• Provide best practices and (substantial) proof of concept for building the distributed

data platform

• Implement matchmaking and analysis services applicable on such a platform

• The use case (and WP) only started in M13, within the LOD2 Enlargement project

• Associated to WP9 in addressing government data• special focus

• association to (linked) commerce data

Overall goals and status



• UEP 35 PMs

• I2G 5 PMs

• ULEI 5 PMs

• OKFN 3 PMs

Although most realization activities depend on UEP (University of Economics,

Prague), close collaboration with other partners is a must

• Support for use of individual technological components of the LOD2 Stack (currently:

Virtuoso, early experiments with OntoWiki and Silk)

• Public Procurement as one of integration use cases in WP6

• Participation in the linked data analytics – T9a.3, also related to WP10 (Linked Data

Mining Challenge)

Partners involved



• Task 9a.1: Creating linked data for public sector contracts• Started in M13, currently the main focus (data extraction and publishing)

• Task 9a.2: Matching the demand of public sector bodies with linked commerce data• Starts in M25

•Task 9a.3: Analytics of linked data for public sector contracts• Starts in M37

Tasks



• Deliverable 9a.1.1 Framework for creating linked data in the domain of public sector

contracts (originally due M16)• Scope of the deliverable was significantly extended, which caused a delay

• Not only general framework and ontology+cookbook, but also data infrastructure implementation

and data processing

• Draft submitted to internal review in (early) M19

• Deliverable 9a.1.2 Web application for filing public contracts (M24)• Presently starting the design of specifications – will be one of main topics of the WP break-out

session

• The remaining 4 deliverables (due M36+) are related to matchmaking and analytical

services

Deliverables



• Public Contracts Ontology (PCO)

• Data Processing Framework

• Datasets Processed

• Supply to Linked Open Data Mining Challenge

• Case Study in Supplier-Side Modelling

Current Achievements



Public Contracts Ontology



• Ontology design• Reuse of existing RDF and non-RDF schemas (TED, Good Relations, SKOS, …)

• Mappings (Call for Anything, LOTED)

• Modularity (EU, particular countries, …)

• Comprehensive ‘cookbook’ for LD designers, covering all important constructs of the

PCO

• Started discussions with people involved in similar projects• WESO Oviedo,

• LOTED

• Euroalert.net

• Possible future extensions• National modules

• Modelling detailed award criteria, restrictions for suppliers (important for match-making)

Public Contracts Ontology



• An instance of Virtuoso was deployed and is being filled with data extracted from

Czech and British PC resources

• Currently being extended with focused extractors, cleaners, linkers (Silk), quality

assessment components, data aggregation and visualization

Data Processing Framework



• Public contracts, Business entities

• Use:• Matchmaking

• Data mining and analytical services

• We have:• Snapshot of Czech national data (governmental portal, local portals – Prague, Universities etc.)

Cca 60K contracts

• British public contracts data (ContractsFinder)

Cca 7K contracts

• We need• More data from other EU countries and specific institutions

TED (not all contracts, more in national portals, involvement of other partners desirable)

• Data on companies from national business registers

opencorporates.com

• How can you help?• A little - Describe public contracts datasets in your country into CKAN – e.g. the Data Hub

• A lot - Screen-scraping or structured extraction to RDF data according to PCO

Datasets Processed



First, exploratory run of the Challenge

• Spring 2012: data gathering and preparation; workshop submission to a conference• Public contracts data linkable to LOD and other LD resources

• Late Spring 2012: data analyzed by participants

• Autumn 2012: challenge workshop taking place

Data Supply for Linked Data Mining Challenge (part of WP10)



• As proof of concept of supplier-side modelling, a vertical ontology for the Renewable

Energy Products domain was designed• Collaborative design relying on a Protégé – OntoWiki pipeline

• An initial experiment in matching PC data with potential supplier data in this domain

was carried out (using Silk)

Case Study in Supplier-Side Modelling



• Upon approval of the proposed framework we will more extensively publish and

refine public contracts data using the data infrastructure• A web-based application for public contracts filing will be developed (presumably, as an extension of

OntoWiki)

• D9a.1.2

• Existing inventory of ontologies for describing the supplier side will be examined and

new additions proposed (following the example of Renewable Energy Products

Ontology)

• Longer-term plans will be discussed at the break-out session on Friday

• Especially what LOD2 Stack tools can be used and what datasets can be processed!

Future Plans (in T9a.1)

lod2 plenary vienna 2012: wp9a - lod for a distributed marketplace for public sector contracts

Technology

creating linked

creating knowledge

side modelling

data

ontowiki

supplier

concept

related