The Vocbench Project

The VocBench, a collaborative tool for
Vocabulary management

Presentation at NSTL, Beijing, China 2012-09-16

Dr. Caterina Caracciolo
Dr. Johannes Keizer
Office of Knowledge Exchange, Research and Extension
Food and Agriculture Organization of the UN

Presentations by Johannes Keizer is licensed under a Creative Commons Attribution-
NonCommercial-ShareAlike 3.0 Unported License.

www.fao.org

http://aims.fao.org johannes keizer/caterina caracciolo

AGROVOC


AGROVOC

• In 1980:
• AGROVOC thesaurus was born
• It was in 3 languages: English, Spanish, French
• It was a paper publication

• In 2012:
• AGROVOC is an RDF/SKOS resource
• AGROVOC is available in 21 languages
• 4 languages are under development


45000

40000
Number of terms per language in AGROVOC

35000

30000

25000

20000 Series1

15000

10000

5000

0


AGROVOC LOD record


The problem
 Thesaurus editors old fashioned, not viable
to edit SKOS
 Ontology editors to complex one one
side, not specific enough on the other
 None of the existing tools had an integrated
workflow environment
 No possibility of collaborative editing, most
tools were not web applications


The solution: VocBench

 Is a web-based working environment for managing
the AGROVOC Concept Scheme

 Facilitate the collaborative editing of multilingual
terminology and semantic concept information

 It includes administration and group management
features

 It includes workflows for maintenance, validation and
quality assurance of the data pool

 It is accessible freely to everybody to facilitates
collaborative editing
10

VocBench

11

MODULES
Home - Recent Changes

Concept/Term Management

Relationship Management

Validation

Consistency Check

Export

User/Group Management

Statistics/Preferences

Search


GROUP/MODULE PERMISSION
Administrator Ontology Term
ModulesGroup Publishers Validators Guest
s editors editors
Home ✓ ✓ ✓ ✓ ✓ ✓
Concepts ✓ ✓ ✓ ✓ ✓ ✓
Relationships ✓ ✓ ✗ ✗ ✗ ✗
Classifications ✓ ✓ ✓ ✓ ✓ ✓
Export ✓ ✓ ✓ ✓ ✓ ✗
Search ✓ ✓ ✓ ✓ ✓ ✓
Validation ✓ ✓ ✓ ✗ ✗ ✗
Consistency ✓ ✓ ✓ ✓ ✓ ✗
Statistics ✓ ✓ ✓ ✓ ✗ ✗
Users ✓ ✓ ✗ ✗ ✗ ✗
Groups ✓ ✓ ✗ ✗ ✗ ✗
Preferences ✓ ✓ ✓ ✓ ✓ ✗

13 http://aims.fao.org johannes keizer/caterina caracciolo

Coming features
Generic • Any SKOS file

• Adding a layer so VocBench can
Configuration connect to most leading triple-stores

• per-language
Complex rights • per-concept scheme

Alignment • Module to align multiple SKOS

• Validation
Bulk actions • Term changes


VocBench 2.0

 VB 2.0 will natively support SKOS
 Separation of the business and presentation layers from the data
layer
 This allows VB to be attached to any SPARQL-compliant triple-
store database (Sesame, Jena, Allegrograph, OWLLim)
 First release of VB 2.0 will retain the same interface as that of
VB 1.0
 VB 2.0 will incorporate all the functionalities available in VB 1.0
 Multi-user support, roles and right administration, and publishing
work flow management will inherited from VB 1.0.
 Current Protégé implementation of VB 1.0 will be replaced by
Semantic Turkey
 All the business logic and data access layers related to ontology
management will be handled by Semantic Turkey


SYSTEM OVERVIEW
Front end Middleware Back end

Administrative
Google Web Hibernate
Gilead Database
Toolkit Layer
(MySQL)
(GWT)

Service
GWT Wrapper
Incubator Layer Semantic
Turkey/
Triple Store
OWLART
API
Graph
Web services
Visualization

Version 2.0

VOCBENCH INTERFACE

GWT
User Management

System Preference

Consistency Check
Management

Management

Management

Management
Relationship
Statistics

Concept
Scheme
Import

Search
Group

Export
Validation

JDBC (MYSQL) Semantic Turkey

System Data Repository
SYSTEM ARCHITECTURE Ontology repository (SKOS)

Version 2.0


LOGIN PAGE


Multi-lingual

21 http://aims.fao.org johannes keizer/caterina caracciolo

Managing change


Top concepts


Browse concepts


Concept relationships


Concept notes


Browse relationships


Validation


Export

Formats Criteria

• SKOS • Sub-vocabulary
• RDBMS-SQL • Scheme
• TBX • Concept
• OWL-Simple • Term
• OWL-Complete • Date


Export


Concept Graph view


MENUBAR

• Link to different modules

• Sign out link to logout from the system.

• Post Comment link to send the comments about that specific
module

• Help link to view the help for specific module

• Display Language link to choose the languages for data to be
displayed
34

Multilingual
Filter languages to display terms for each concepts

35

COMMENTS
Allows provision of feedbacks for each module

36

HELP
Steps by steps procedure for each module

37

HOME - RECENT CHANGES
• Lists all the changes in reverse chronological order

38

SEARCH
• by string: the user can specify if the system should search by exact
match, beginning with, contains or fuzzy

• by URI or term code; or by range of term code (e.g. between 123 and
9876)

• by classification schemes

• by creation or modification date

• by specific relationships (e.g. search all concepts using the “has_pest”)

• by status, language

• by notes/attributes

40

SEARCH CRITERIA
• Exact match (“water” will find only water)

• Starting with (“water” will find “water”, “water management”, and “watergate”)

• Contain (“water” will find “water”, “water management”, “inland water”, and
“watergate”)

• Exact word (“water” will find “water”, “water management”, “inland water” but not
“watergate”)

• Case Sensitive (“ABc” will find only for the word “ABc” and not “abc”

• Include Description

– Search also content of definitions, images, editorial notes, scope notes

• Include Spelling Variant

– Search also on different spelling variants

41

CONCEPT MANAGEMENT
• Visualize / Navigate Concepts

– depending on the access level, user can edit

• Show selected concept details

– all terms and other information

• Show selected concept relationships

• Delete concept

• Can view the URI of the concept enabling „Show URI‟ option

42

CONCEPT MANAGEMENT

43

ADD/DELETE CONCEPT
• Add term to the newly created concept in one language
• Can delete the concept and all the relationship associated with that concept

44

CONCEPT RELATIONSHIP
• Can create the concept-concept relationship
• Inverse relationship is also created
automatically
– Ex: If we create A affect B, then B is affected by A
relationship is also created

45

CONCEPT IMAGE
• Name of the image
with description

• URL will point to the
image which will
open in an external

• Provide the source
of the image

• Can add more
translation in
different language

46

SCOPE/EDITORIAL NOTES
• In Editorial Notes, we can post the modifications
made to the selected concepts
• In Scope Notes, we can post information for indexing
• Both can contain multiple values in multiple
languages
47

CONCEPT DEFINITION
• Add definition to the selected concept
• Add translation in different languages
• Provide the source of the definition
• Creation and modified date are set automatically

48

TERM MANAGEMENT
• Visualize / Navigate Terms
– depending on the user access level and role
• Show selected term details
• Show selected term relationships
• Show term variances
• Add/Edit/Delete term

49

ADD/EDIT/DELETE TERM
• Term actions will be associated to the selected concept
• Term can be created in different languages
• Term can be set as preferred or non preferred
• An option allows preferred terms visualization only in the concept tree
browser

50

CONCEPT GRAPH VISUALIZATION

51

RELATIONSHIP MANAGEMENT

52

LABEL/DEFINITION

• Can add/edit/delete the label for relationship in multiple
languages
• Can add/edit/delete definition of the relationships in multiple
languages

53

PROPERTIES/ DOMAIN & RANGE
Can assign functional, transitive, inverse & symmetric properties to the
selected relationship

Only functional properties can be selected for data type properties

Can specify the domain & range

54

VALIDATION

• Allows to verify the new
concept/term/definition/relationships/notes/attribut
es created, edited or deleted.

55

STATISTICS

Provides statistical data on
concepts
terms
users
relationships

56

EXPORT
• Formats
– SKOS
– RDBMS-SQL
– TBX
– OWL

57

CLASSIFICATION SCHEMES

• Add/Edit/Delete different classification schemes

• Can create new category or assign existing domain concept to the
classification schemes

• Mapping categories to domain concepts is possible

58

USER MANAGEMENT

• Manages user detail information.
• Assign each user different group privilege and languages.

59

GROUP MANAGEMENT

• Manages different groups, their permission and members.
• Assign allowed actions for each group.

60

CONSISTENCY CHECK

• Checks if there is any inconsistency in the model data.

61

SYSTEM PREFERENCES

• Manage user information/preferences
• VocBench interface

62

RSS

• All the changes on the VocBench content is published through RSS.

• Helps people who regularly use VocBench to stay informed about the changes.

• Shows

– all the concept/terms/relationships created/edited/deleted

– Users/Groups created/edited/deleted
63

WEB SERVICES

VocBench maintains access
Triple
Store

response

SKOS

Other uses
Applications

64

WEB SERVICES
• AGROVOC Concept Server is accessible via web services, which
can be called from any client application.
• The web services are realized on Apache Axis running on
Tomcat.
• Using web services,
–helps third party application for easy access to WB content
–changes on the content of AGROVOC Concept Server can be
accessed immediately
–reduces the time and effort necessary to download and
incorporate the latest version of the AGROVOC Concept
Server content into applications

65

CURRENT AGROVOC RELEASES
• AGROVOC Home Page

– http://aims.fao.org/agrovoc

• Latest stable release version 1.0:

– http://agrovoc.mimos.my

• Web Services Test Client

– http://202.73.13.50:55381/ACSWWebserviceV1Client/sampleA
CSWWebServiceProxy/TestClient.jsp

67

TECHNICAL DETAILS

68

Version 1.3
User
Management
Group
Management
System

JDBC (MYSQL)
Preference

SYSTEM ARCHITECTURE
Statistics

System Data Repository
GWT

Consistency
Check
Import
VOCBENCH INTERFACE

Export

Search

Scheme
Management
Protégé OWL API

Concept
Ontology repository (OWL)

Management
Relationship
Validation

Management
69

Front end Middleware Back end

Administrative
Google Web Hibernate
Gilead Database
Toolkit Layer
(MySQL)
(GWT)

Intermediate
GWT
Layer
Incubator Protégé
Protégé
Triple Store
OWL API

Graph
Web services
Visualization

SYSTEM OVERVIEW
Version 1.3

70

VocBench 1.0 2.0
Version 1.x

Business Protégé API
GWT/Presentation MySQL
logic 3.4.x

Version 2.0

Semantic Turkey
GWT/Presentation Business logic • OWL ART API Triple Store

71

SYSTEM OVERVIEW
• Front End
– GWT/GWT Incubator
• Google Web Toolkit
– Graph Visualization
• Java Applet

• Middle ware
– Service wrapper layer
• separates client and service layer
• allows to switch between old Protégé implementation and Semantic Turkey
– Semantic Turkey/OWL Art API
– Gilead
• integrating GWT and Hibernate

• Back end
– Administrative DB : MySQL
– Triple Store: Sesame/Jena/Allegrograph,..

72

Semantic Turkey/OWLArt API
• Semantic Turkey provides
– business logic including OWL and SKOS support,
– import for OWL and SKOS,
– triple-store agnostic design and
– an OSGi-compliant plug-in architecture.
• Semantic Turkey uses the OWLArt API which is already partially
integrated within VocBench.
• OWLArt API offers
– a basic RDF triple query and SPARQL access layer, which need to be
implemented for any specific triple store
– methods more closely connected with operations related to the standard
vocabularies of the RDF family (from RDF to RDFS, OWL, SKOS and SKOS-XL).

73

Semantic Turkey Architecture

74

TOOLS/TECHNOLOGIES
Tools Description
Eclipse an open source community, whose projects are focused on building an open
Eclipse development platform comprised of extensible frameworks, tools and runtimes for building,
deploying and managing software across the lifecycle.

Google Web Toolkit (GWT) is an open source Java software development framework that
GWT makes writing ajax web application.

Protégé-OWL API is an open-source Java library for the Web Ontology Language and
Protégé OWL API RDF(S) providing classes and methods to load and save OWL files, to query and manipulate
OWL data models, and to perform reasoning.

OWL ART API offer an abstraction layer over different RDF triple store technologies.
OWL ART API Currently available for Sesame or Jena Implementation.

Semantic Turkey is a platform for Semantic Bookmarking and Ontology Development
Semantic Turkey realized by the ART Research Group at the University of Rome, Tor Vergata

MySQL MySQL is an open source relational database system

Hibernate Hibernate is a powerful, high performance object/relational persistence and query service.

Apache Tomcat is the servlet container that is used in the official Reference Implementation
Apache Tomcat for the Java Servlet and JSP technologies.

75

TOOLS/TECHNOLOGIES Version
Tool/Technology Version Reference
http://java.sun.com/javase/downloads/index
JAVA 1.5 or above
.jsp

Mysql 5 or above http://dev.mysql.com/downloads/

Hibernate 3.1 https://www.hibernate.org/

Gilead 1.2.3 http://noon.gilead.free.fr/gilead/

http://code.google.com/webtoolkit/versions.
GWT 1.7
html

gwt-incubator drop for gwt 1.7 Revision http://code.google.com/p/google-web-
GWT Incubator 1686 toolkit-incubator/

http://protege.cim3.net/download/old-
Protégé OWL API 3.4 Build 130
releases/3.4%20betas/build-130/full/

OWL ART API 2.0.4 http://art.uniroma2.it/owlart/

Semantic Turkey 0.8.5.x http://semanticturkey.uniroma2.it/

Apache Tomcat 6 or above http://tomcat.apache.org/download-55.cgi

76

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