D1.4.6 Cupboard—Supporting Ontology Reuse by
Contents
1. 2006 2010 C Copyright lies with the respective authors and their institutions2. Cupboard Supporting Ontology Reuse by Combining a Semantic Web Gateway Ontology Registry and Open Ratings Systems Improved and Final Version Page 15 of 35 A number of other features are currently being developed as part of this plugin such as the ability to cus tomize the way the overall ontology score is calculated as well as the ability to update an ontology space within the ontology developed with the NeOn Toolkit 2006 2010 C Copyright lies with the respective authors and their institutions Page 16 of 35 NeOn Integrated Project EU IST 027595 Chapter 5 User Study One of our main interest was assess the usability of Cupboard in an ontology reuse scenario Since one of our main motivations for developing Cupboard was to provide tool support for each step of the reuse process we tested Cupboard in comparison to other tools and methods within a user study Based on the NeOn methodology dCSFdCB 08 the main steps a user has to go through when trying to reuse ontologies or ontological content during the ontology engineering process are the following e Finding an ontology to reuse e Assessing the ontologies found e Selecting reusable ontologies or statements from these ontologies e Integrating the ontologies or statements into the currently developed ontology e Ensure local consistency after import The last step checking for consistency is fairly trivial using one of the reasoners available today For users of th
3. Method AROMA http kmi Ali nment J web06 0 with rdf show Alignment Show Created Feb 03 23 01 09 CET 2010 http aserv inrialpes fr alid 1264594664474 211 Selected Method AROMA http Kmi b06 Alignment with rdf show Alignment Show Created Wed Jan 27 13 17 44 CET 2010 Update I Figure 8 11 Using this dialog the user can mark alignments as selected D1 4 6 Cupboard Supporting Ontology Reuse by Combining a Semantic Web Gateway Ontology Registry and Open Ratings Systems Improved and Final Version Page 29 of 35 Project 1168 triples RDF OWL amp amp o Read Reviews 1 1 Alignments Total 1 Figure 8 12 This screenshot displays an ontology with one selected alignment and 1 alignment total Enter Search Terms Search Options boa ra search Cupboard Cup Figure 8 13 Using this form the Cupboard system can be queried 2006 2010 C Copyright lies with the respective authors and their institutions Page 30 of 35 NeOn Integrated Project EU IST 027595 C boa rd Details for http annotation semanticweb ara 2004 iswcsrLlniversity of Karlsruhe view as graph n http localhast8 s cupbaard ontalaqy xcvixcyFifth individual name University of Karlsruhe name University of Karlsruhe name University of Karlsruhe name University of Karlsruhe o o o oO name University of Karlsruhe o o o in
4. a source of ontologies Cupboard Ontology Space Experiment1 Known Statements e Show all the retrieved statements Show only statements NOT covered by current Ontology SameAs Create sameAs links between ontology entities and the entities of reused statements 9 Don t create any link with external ontologies EquivalentClass 9 Create equivalentClass instead of sameAs for classes Use sameAs also for classes EEE cdi _ Restore Defaults Sasa 75 1 Apply Cancel C ox Figure 4 1 The Watson Plugin s preference panel Finally we decided that there was no point in making the user experience more complex than necessary by providing two different plugins essentially providing the same feature but relying on different sources We therefore merged the two plugins giving to the Watson plugin the ability to also make use of the Cupboard repository Here the choice is given to the user in the plugin preference panel about which source to employ see Figure 4 1 In the case of Cupboard the user can also decide to restrict the searches to a specific Ontology Space or leave the corresponding field blank to search in any Cupboard ontology space In addition through the use of Cupboard another feature is added to the Watson plugin which is the possi bility to rank the resulting ontologies according to the user evaluation provided in the system In that case the aggregated score for each ontology will be repres
5. an ontology We have closed this gap by extending the Watson plugin to feature the ratings from Cupboard and base the result ranking on the overall rating scores provided by the TS ORS see Fig refCupboard Plugin In For a selection see http esw w3 org topic TaskForces CommunityProjects LinkingOpenData SemanticWebSearchEngines http watson kmi open ac uk http watson kmi open ac uk editor plugins html Ihttp lucene apache org D1 4 6 Cupboard Supporting Ontology Reuse by Combining a Semantic Web Gateway Ontology Registry and Open Ratings Systems Improved and Final Version Page 17 of 35 In Hel Al 8 GGa P e Eo ES 2 OWL a Ontology Navigator u ML Vatson Results ic Fish Ontologies OWL Ah http www NewOntol or v Classes Fish Object Properties subClassOf Vertebrate Add relation from Fish C Data Properties C Annotation Properties subClassOf NonHuman Add relation from Fish C Datatypes C Salmon subClassOf Add relation to Fish Search results for Fish B Individuals XN _ B WY 7H Figure 5 1 This screenshot shows the Watson plugin displaying results within the NeOn Toolkit 2006 2010 C Copyright lies with the respective authors and their institutions Page 18 of 35 NeOn Integrated Project EU IST 027595 a J amp j 1lt ga3 3 4 9i 9 9o6 o Ey 5 OWL X Ontology Navigator HN El 3 Entity Properties f rd R i m Search results for Fis
6. an ontology for all properties of this ontology or for all properties of all ontologies globally This allows to add trust or distrust way faster compared to having to go through all reviews and trusting distrusting them D1 4 6 Cupboard Supporting Ontology Reuse by Combining a Semantic Web Gateway Ontology Registry and Open Ratings Systems Improved and Final Version Page 9 of 35 AKTPortal gsetenpiiis a sceresngke tes Giuponess seesedpeennsk eras C vinb nrsa beendet d ebrii de Devi ROTE Kd n Implemernted Swysterm Address Generic d on tissues 77 7 773 o amp amp Read Reviews 1 0 Alignments Total 0 Figure 2 1 This screenshot shows how the AKTPortal ontology is displayed in Cupboard including the key concept visualization 2006 2010 C Copyright lies with the respective authors and their institutions Page 10 of 35 NeOn Integrated Project EU IST 027595 Chapter 3 The Cupboard Java API Cupboard is intended to address the needs of three different types of users ontology developers ontology practitioners and ontology application developers For ontology application developers each ontology space in Cupboard acts like a virtual infrastructure where ontologies can be stored indexed found and explored In this chapter we provide a brief description of the Java API developed to allow application development on top of such a virtual infrastructure This Java API can be retrieved as a Ja
7. hitp localhost 8080 cupboard ontologyixewixevFifth individual name University af Karlsruhe name University of Karlsruhe name University of Karlsruhe name University of Karlsruhe name University of Karlsruhe 7o ooo CO OF o Individual Oo name University of Karlsruhe o name University of Karlsruhe O name University of Karlsruhe oO name University af Karlsruhe O name University of Karlsruhe o i type http jfannotation i cniantcwlt rgmo04RswcsfUniversit Figure 8 14 A result set for the query for University boa rd Ontology URI nttpIlocalhost080 cupboard ontology selahi selahiT C Uu D orn university O Search Found 10 entities http illocalhost 8080 cupboard ontology selahi selahiT 4 hip annotation seman ticweb org 2004 iswciUniversity of Karlsruhe 4 hi iannotation seman ticweb org 2004 iswc3tUniversity of _Karisruhe 4 hip annotation seman ticweb org 2004 iswc3tUniversity of Karlsruhe 4 hitp annotation seman ticweb org 2004 iswcitUniversity of Karlsruhe 4 hi iannotation seman ticweb org 2004 iswcitUniversity of Karlsruhe Ghrp annotati on semanticweb org 2004 iswcsUniversity Ghip iannoraii on semanticweb org 2004 tswcttUniversity Ghip annotati on semanticweb org 2004 iswcsUniversity Ghip annotati on semanticweb org 2004 tswcitUniversity Gniup iannorati on semanticweb org 2004 iswcttUniversity Figure 8 15 A result set for the query for University
8. Ontology Space The ontology space for an example see fig 8 3 contains all the ontologies added by a user If you browse your own ontology space you can find all the ontologies you added It is like the home screen of Cupboard For each ontology the title number of statements format and overall rating are displayed Furthermore the key concepts are visualized and the number of active and total alignments is displayed From this screen you have several options Add an ontology search write a review or read reviews add an alignment or view additional metadata about the ontology We will now explain each of these functionalities 8 1 4 Adding an ontology When you click on Add Ontology in your ontology space you will get a dialog that allows you to upload ontologies You can enter the name and either specify a location on the filesystem where your ontology is located specify its URL or enter the ontology source code directly see fig 8 4 After the ontology has been added the URI can be adapted to be properly dereferencable to its location within Cupboard The adaptation can be done by simply clicking the button see fig 8 5 As a next step metadata information is gathered by the system By default only one form is expanded see fig 8 6 but by clicking on the sign also the other categories can be extended so that metadata can be entered see fig 8 7 Whenever possible we use controlled vocabularies which then ar
9. T lh N NeOn NeOn project org NeOn Lifecycle Support for Networked Ontologies Integrated Project IST 2005 027595 Priority IST 2004 2 4 7 Semantic based knowledge and content systems D1 4 6 Cupboard Supporting Ontology Reuse by Combining a Semantic Web Gateway Ontology Registry and Open Ratings Systems Improved and Final Version Deliverable Co ordinator Holger Lewen Deliverable Co ordinating Institution Universitat Karlsruhe TH Other Authors Mathieu d Aquin amd Salman Elahi OU In this deliverable we present the update to the Cupboard system for ontology publishing shar ing and reuse In this deliverable we focus on the new features Key concept visualization alignment integration into the front end and an updated version of the TS ORS We further more describe the Cupboard Java API and the NeOn Toolkit plugin The results from conducted user study are also included Document Identifier NEON 2010 D1 4 6 v1 0 February 28 2010 Class Deliverable NEON EU IST 2005 027595 Submission date February 28 2010 Project start date March 1 2006 Project duration OP Distribution 2006 2010 C Copyright lies with the respective authors and their institutions Page 2 of 35 NeOn Integrated Project EU IST 027595 NeOn Consortium This document is part of the NeOn research project funded by the IST Programme of the Commission of the European Communities by the grant number IST 2005 027595 T
10. The Watson Plugins preference panel 22r 14 5 1 This screenshot shows the Watson plugin displaying results within the NeOn Toolkit 17 T 18 8 1 To register you have to fill out this registration form 22 8 2 he system accepts an OpenID or username password combination as login credential 22 8 3 The ontology space contains all ontologies added by the user It also displays additional a e G eee Moe a esas 23 TTE 23 8 5 Here the user can decide to adapt the namespace of theontology 24 8 6 Metadata can be entered for the ontology lr 24 TE 25 DR eee ew aes hee W ROS NON ORUM S AN 26 8 9 Here the user can choose the ontology and method for the matching 26 8 10 Using this dialog the user can upload an alignment from disk 27 pe eS abe 28 6 12 This screenshot displays an ontology with one selected alignment and 1 aljgnmenttotal 29 8 13 Using this form the Cupboard system can be queried 2 0 02 eee eee 29 8 14 A result set for the query for University 2 aoao ee a 30 8 15 A result set for the query for University within the specified ontology 30 8 16 After clicking on the the results are extended to display additional information 31 E 32 8 18 he reviews are presented broken down into the 5 properties The most relevant review
11. an facilitate the reuse of ontological knowledge The results indicate that user perceive it as superior over other tools trying to serve the same purpose and our analysis of the produced ontologies support this indication We will open the registration to all users pretty soon and are looking forward to learn from the user feedback and the data gathered and improve the system even more D1 4 6 Cupboard Supporting Ontology Reuse by Combining a Semantic Web Gateway Ontology Registry and Open Ratings Systems Improved and Final Version Page 21 of 35 Chapter 8 Appendix 8 1 User Manual We plan to also have the latest version of the user manual linked from the Cupboard website 8 1 1 Installation Cupboard does not have to be installed by the end user it is accessible by Web Browser currently tested on Firefox and Safari by simply entering the URI We will however at a later point make a complete Cupboard package available for companies wanting to run their own local version of Cupboard This package will then come with a dedicated developer and system administrator handbook Our local installation can be found at http cupboard open ac uk To register one has to fill out a registration form see fig 8 1 8 1 2 Getting started Logging in You can normally log into the system using your OpenID or a username password combination see fig 8 2 Once logged in the Ontology Space of the logged in user is displayed 8 1 3
12. d ontologies or ontological content These findings support our hypothesis that with the Cupboard plugin we have facilitated ontology reuse by address ing the assessment and selection step of the reuse cycle D1 4 6 Cupboard Supporting Ontology Reuse by Combining a Semantic Web Gateway Ontology Registry and Open Ratings Systems Improved and Final Version Page 19 of 35 Chapter 6 Distribution Modality The open registration process is in place and in the final stages of testing It will go live before the end of February 2010 The development of an open source package bundling all Cupboard components is still ongoing but is planned to be completed before the end of 2010 With the release of the Cupboard open source package everyone can setup their own Cupboard locally The plan is to offer the users an option to interlink their version of Cupboard with other Cupboard installations leading to information exchange between the different instances 2006 2010 C Copyright lies with the respective authors and their institutions Page 20 of 35 NeOn Integrated Project EU IST 027595 Chapter 7 Conclusion In this document we presented the updates made in the past year to our Cupboard system We have included key concept visualization integrated the alignments into the front end and updated the TS ORS including meta trust and trust statistics for the reviews Furthermore we have described a user study we ran to show that Cupboard c
13. e Java API and the plugin for the NeOn Toolkit We finish with the user study and a conclusion In the annex we provide the updated user manual 2006 2010 C Copyright lies with the respective authors and their institutions Page 8 of 35 NeOn Integrated Project EU IST 027595 Chapter 2 New Components in the Cupboard System In this section we will briefly describe the new components of the Cupboard system 2 1 Key Concept Visualization Using the approach for identifying key concepts in an ontology through the integration of cognitive principles with statistical and topological measures presented at ASWC 2008 PMd08 a method was developed to visualize found key concepts The method takes as input the ontology and renders the results of the key concept analysis as an image which is then displayed in Cupboard see Fig 2 1 2 2 Alignment Server The user can now choose to add and load alignments for ontologies in their Cupboard space They can furthermore select alignments as selected This functionality is for use with the Cupboard APIs it does not affect the ontology space as such A more detailed description can be found in the user manual 2 3 TS ORS Apart from an update to the source code and a resulting performance increase also a meta trust abilities have been added A user can now choose after clicking on nnl trust or nnl distrust whether to trust the reviewer for this review for all reviews covering this property of
14. e NeOn Toolkit the RaDON Plugin provides methods to not only check for consistency but also provides help if an inconsistent ontology has to be repaired For the first steps some tools and methods that can assist the user exist For the first step finding an ontology to reuse ontology search engines provide users with ontologies match ing a query There are a number of different search engined which provide a varying degree of flexibility in terms of queries they accept and also in terms of integration with an ontology engineering tool Wat sor for example exposes its search functionalities via the Watson plugir dMD 08 for the NeOn Toolkit This means that users can trigger a Watson search from within the NeOn Toolkit by right clicking on for example a concept and then selecting the Watson search from the context menu The results are then displayed in a special Watson view that allows the users to see the URIs and expand the ontologies to show axioms matching the query These axioms can then be imported into the developed ontology by means of a simple mouse click see Fig 5 1 While the Watson plugin addresses the problems of finding ontologies to reuse and also help with the integration of found ontologies it does not offer any help in assessing or selecting the ontologies found The ranking of the results is based on Lucene and thus on simple statistical measures like TF IDF that do not take into account the quality of
15. e presented as a drop down list see fig 8 7 for more information seelhttp openid net 2006 2010 C Copyright lies with the respective authors and their institutions Page 22 of 35 NeOn Integrated Project EU IST 027595 cupere OpenID Ontology space name Password First Name Last Name e mail address Submit Search About Contact Us Figure 8 1 To register you have to fill out this registration form cupoard OpenID or Login and Password Submit Figure 8 2 The system accepts an OpenID or username password combination as login credential D1 4 6 Cupboard Supporting Ontology Reuse by Combining a Semantic Web Gateway Ontology Registry and Open Ratings Systems Improved and Final Version cupere AKT Lite go Io UUNENMIU d soe pes srsenes III II EI MEN C IEDIRE 1 Project Per Address Municipal Unit Publication 985 triples RDF OWL Not reviewed yet Write a Review 0 Alignments Total 3 Add Alignments Page 23 of enrico s Ontology Space Home Add Ontology Search Logout AKTPortal Seu PODES IINE IUNII III INNEN I IUE 2 Implemented System Address ye 1480 triples RDF OWL o o o Read Reviews 1 0 Alignments Total 2 Add Alignments Figure 8 3 The ontology space contains all ontologies added by the user It also displays additional metadata of the ontologies cupere Add an ontology to the hle
16. earch term and also specify specific search options Once the results are found they are presented see fig 8 14 to the user It is also possible to search within an ontology see fig 8 15 The resultset can be extended by clicking on the signs see fig 8 14 2006 2010 C Copyright lies with the respective authors and their institutions Page 26 of 35 NeOn Integrated Project EU IST 027595 board Cup Ontology Metadata Home Edit Metadata General Metadata Get OMV Code Get RDF Code Get SPARQL Search Provenance Metadata Applicability Metadata Format Metadata Availability Metadata Statistics Metadata Figure 8 8 Here the metadata for an ontology is displayed board up C Alignment Result Home Upload an Alignment Please select an ontology and a matching method from the lists below to match the Fish Catalogue ontoloy http xmlns com foaf 0 1 es upm fi dia ontology semanticmapper pronto ODEAlignment Figure 8 9 Here the user can choose the ontology and method for the matching D1 4 6 Cupboard Supporting Ontology Reuse by Combining a Semantic Web Gateway Ontology Registry and Open Ratings Systems Improved and Final Version Page 27 of 35 Please select the alignment to upload Datei ausw hlen Keine Datei ausgew hlt Upload Figure 8 10 Using this dialog the user can upload an alignment from disk Reviews and Reviewing One of the centra
17. en an adapted version of the NeOn reuse methodology incorporating potential help from plugins if available A more detailed description of the experiment and the results can be found in LewO9 while we here focus on the results obtained A general observation was that users from group 1 had problems finding existing ontologies to reuse and integrating them Bare in mind that they did not have any tool support Their resulting ontologies were quite small Group 2 had problems assessing the ontologies presented by Watson while the search itself and the integration were easy The ontologies created were bigger and contained knowledge from more different ontologies than the ontologies from group 1 One problem with some of the created ontologies was that users tend to start reusing blindly without thinking about the applicability of the statement in the context or ontology currently modeled The ontologies produced by the group with access to Cupboard were bigger and of better quality because the users were using the rating information to guide their assessment of the ontologies The ontologies produced were also very similar because most users reused the same top ranked ontologies The questionnaire completed by participants mirrors our observations Given tool support the users do not face problems in finding ontologies to reuse But without quality information like the star ratings from cupboard the users face problems assessing and selecting foun
18. ented in the results by a number of stares see Figure 4 2 2006 2010 C Copyright lies with the respective authors and their institutions Page 14 of 35 NeOn Integrated Project EU IST 027595 OOO Eigse SOKO ri i m l m9t Q e Ontology Navigator D E NewOntologyProject2 OWL2 v ZA ontologyl v j Classes v Animal 0 8 Fish v G Person 318 Boss 1 1 Child 1 1 Employee 1 1 Housewife 1 1 gt d Man 112 v 9 Parent 0 4 gt 3 Father 1 2 gt G Mother 1 2 v 3 Woman 11 3 Housewife 1 1 v 3 Mother 1 2 GrandMoth Gender 2 2 Object Properties Jj hasBoss hasChild Jj hasEmployee J hasGender hasHusband Jj hasParent Jj hasWife Data Properties age NE E z ow amp Java v Super Restrictions Property Quantifier Min Max Range Create new SOME 7 Cada Equivalent Restrictions Property Quantifier Min Max Range Create new L o m GD eD Class Restrictions Taxonomy Annotations Q Watson Results View Search results for Fish subClassOf Add relation to Fish Add relation to Fish Cephalaspidomorphi Holocephali subClassOf Sarcopterygii subClassOf Add relation to Fish subClassOf Add relation to Fish subClassOf Add relation to Fish Add relation to Fish Myxini Elasmobranchii Actinopterygii subClassOf View Ontology Summary Figure 4 2 The Watson Plugin s preference panel D1 4 6
19. ery limited in relation with coverage Correctness Comment Complexity Comment Domain Coverage Comment restricted to pizza Modelling X kkk Comment good but hamper reusability Send Figure 8 17 The user can provide star ratings and explanations for these ratings for each of the five ontolog ical properties D1 4 6 Cupboard Supporting Ontology Reuse by Combining a Semantic Web Gateway Ontology Registry and Open Ratings Systems Improved and Final Version Page 33 of 35 C board up Review for Tools in selahi Reusability ook Bysalman ELAHI Trust Tdon ttrust Q Commenti For this review 9 For this property For this ontology For everything Correctness KKK By salman ELAHI trust don t trust Comment For this review For this property O For this onotlogy O For everything Complexity Kk By salman ELAHI trust I don ttrust Comments For this review Forthis property Forthisontology For everything Domain Coverage By salman ELAHI trust T don ttrust e EP Comment4 For this review Forthis property Forthis ontology For everything Figure 8 18 The reviews are presented broken down into the 5 properties The most relevant review is displayed first By clicking on I trust or don t trust trust or distrust statements the user can choose to add trust and meta trust statements
20. h KKKK ish in http km subClassOf ColdBloodedVertebrate Add relation from Fish Add all super classes a S v NewOntologyProject OWL v A gt http www NewOntol org ontolog v Classes Fish C Object Properties comment A cold blooded aquatic Vertebrate characterized by Add Literal in Fish C Data Properties __ Add Literal in Fish j Annotation Properties v comment A cold blooded aquatic Vertebrate characterized by Add Literal in Fish ir LLiLiLL1 Oioc il Figure 5 2 This screenshot shows the Cupboard plugin displaying results within the NeOn Toolkit the latest version of the Watson plugin the user can select whether the results of the search should come from Watson or from Cupboard For our user study we had a dedicated version of the Cupboard plugin that we compared against the Watson plugin and simple Web search as a baseline In the experiment we had 20 users divided into 3 groups perform the same task Extend an ontology containing only the class Fish by ontological knowledge found on the Web in search engines or repositories All of the three groups had 20 minutes time to perform the given task using the NeOn Toolkit Group 1 had access to the Web but no additional plugins apart from the RaDON plugin installed Group 2 was given the Watson plugin in addition to the Web access The third group could use the Cupboard plugin and the Web All groups were furthermore giv
21. he following partners are involved in the project Open University OU Coordinator Knowledge Media Institute KMi Berrill Building Walton Hall Milton Keynes MK7 6AA United Kingdom Contact person Martin Dzbor Enrico Motta E mail address m dzbor e motta open ac uk Universidad Polit cnica de Madrid UPM Campus de Montegancedo 28660 Boadilla del Monte opain Contact person Asunci n G mez P rez E mail address asun fi ump es Intelligent Software Components S A ISOCO Calle de Pedro de Valdivia 10 28006 Madrid opain Contact person Jesus Contreras E mail address jcontreras isoco com Institut National de Recherche en Informatique et en Automatique INRIA ZIRST 665 avenue de l Europe Montbonnot Saint Martin 38334 Saint Ismier France Contact person J r me Euzenat E mail address jerome euzenat inrialpes fr Universitat Kolenz Landau UKO LD Universitatsstrasse 1 56070 Koblenz Germany Contact person Steffen Staab E mail address staab uni koblenz de Ontoprise GmbH ONTO Amalienbadstr 36 Raumfabrik 29 76227 Karlsruhe Germany Contact person Jurgen Angele E mail address angele ontoprise de Atos Origin S A ATOS Calle de Albarracin 25 28037 Madrid Spain Contact person Tomas Pariente Lobo E mail address tomas parientelobo atosorigin com Universitat Karlsruhe TH UKARL Institut fur Angewandte Informatik und Formale Beschreibungsverfahren AIFB Englerst
22. ing example shows how to realize that RatingService rs new RatingService System out println Rating for AKT Potal rs getOverallRating http kmi web06 0pen ac uk 8081 cupboard ontology enrico AKTPortal 3 3 Updating an Ontology Space Of course one fundamental difference between Watson and Cupboard is that Watson automatically collects ontologies from the Web while Cupboard s ontologies are contributed by the community of users By pro viding in the API the ability to automatically update an ontology space Cupboard allows to build applications generating ontology spaces on demand and to automatically synchronize particular local ontology reposi tories with their corresponding ontology spaces The following code example shows how to add an ontology to an ontology space enrico OntologySpaceService oss new OntologySpaceService enrico passwd uploading true for changing the URI to Cupboard location oss uploadOntology http www aktors org ontology portal AKTPortal true 3 4 Examples of usage For the purpose of the SemanticNomenclature application ATOS have created an ontology space containing a variety of ontologies related to the pharmaceutical sector see http cupboard open ac uk 2006 2010 C Copyright lies with the respective authors and their institutions Page 12 of 35 NeOn Integrated Project EU IST 027595 8081 cupboard SemNomenclature This ontology space is accessed at run
23. is displayed first By clicking on I trust or I don t trust trust or distrust statements the user can choose to add trust and meta trust statements to the databased and the web of trust is updated 33 8 19 The reviews are presented broken down into the 5 properties The most relevant review is displayed first based on the general opinion of the users a rs 34 D1 4 6 Cupboard Supporting Ontology Reuse by Combining a Semantic Web Gateway Ontology Registry and Open Ratings Systems Improved and Final Version Page 7 of 35 Chapter 1 Introduction What is new in Cupboard After the basic infrastructure and the main ideas and components have been presented in the last Cupboard deliverable LdE 09 we will here focus on the new features updates the Cupboard Java API the integration of Cupboard into a NeOn Toolkit plugin and an improved user manual Features that have been implemented since the last deliverable include the key concept visualization from WP4 PMd08 the alignment integration into the front end and a revised version of the Topic Specific Trust Open Rating System TS ORS Furthermore we have conducted a user study using a beta version of the NeOn Toolkit Cupboard plugin to test how users could interact with and benefit from Cupboard within an ontology engineering environment In the remainder of the deliverable we will first shortly describe the new components Then we elaborate on th
24. l Version Page 25 of 35 board up C Ontology Metadata Form General Metadata El Ontology Name URI Description Creation Date Provenance Metadata El Creator Applicability Metadata i ne eT TT Please select the Ontology type w Please select the Ontology type Format Metadata El Uppler Level Core Domain Ontology Language Task Application Ontology Type Ontology Syntax Availability Metadata El Resource Location Figure 8 7 For certain metadata entries can be selected from a drop down list In the ontology space ontology metadata can be seen when clicking on the URI of the ontology see fig 8 8 Alignments If one clicks on add alignment in the ontology space a page come up that allows the user to specify with which ontology to match the ontology and what method to choose see fig 8 9 One can also upload an alignment from disk see fig B 10 All alignments can be displayed and marked as selected see fig B 11 Selected alignments show are displayed in the ontology space by the number in front of alignments and total number in brackets see fig 8 12 Selected alignments can be used by the API Search If Cupboard the user can access the search functionality by either clicking on search in the ontology space see fig 8 3 or search an ontology directly from the metadata view see fig 8 8 The search screen can be seen in fig 8 13 The user can enter a s
25. l ideas of Cupboard is to also allow the community to make use of other users experience We therefore allow for detailed reviews of the ontologies and employ a sophisticated ranking system to provide the results in a user specific order When a user clicks on Write a review a form is displayed see fig 8 17 that allows the user to rate each of the ontological properties defined in the system by selecting a 1 5 star rating They can and should also comment on the rating explaining why this star rating was chosen It is important to note that not all the properties have to be reviewed it is also possible to review only one or some properties On the other hand when clicking read reviews on the ontology space the reviews for this ontologies are displayed in a personalized order if logged in see fig 8 18 or based on global trust what most people think is right see fig B 19 Note that when you are logged in you can also add trust and meta trust statements to the reviews and thus change the way the reviews are ranked This works by first clicking on I trust or I don t trust and then selecting the scope of the trust or distrust statement 2006 2010 C Copyright lies with the respective authors and their institutions Page 28 of 35 NeOn Integrated Project EU IST 027595 Method AROMA http kmi Alli t ignmen Wweb0 o with rdf Show Alignment Show Created Tue Feb 02 10 47 44 CET 2010
26. ocument even if they might not have directly contributed to the writing of this document or its parts e OU Change Log Version Date Amended by 02 01 2010 Mathieu d Aquin API and Plugin chapters 02 05 2010 Holger Lewen Finalizing deliverable and updated man ual 02 17 2010 Holger Lewen Incorporating reviewer s comments 2006 2010 C Copyright lies with the respective authors and their institutions Page 4 of 35 NeOn Integrated Project EU IST 027595 Executive Summary In this deliverable we present the updates to the Cupboard system for ontology publishing sharing and reuse This system is intended to support both ontology engineers and ontology users practitioners For the developers of ontologies it offers a complete infrastructure to host their ontologies in online ontology spaces providing mechanisms to describe manage and effectively exploit these ontologies through APIs Furthermore these ontologies are then exposed to the community providing users with a complete friendly environment to find assess and reuse ontologies In the deliverable we focus on an update to the TS ORS integration the new key concept visualization and the integration of the alignment server into the UI Also the Cupboard Java API is introduced and the integration into a NeOn Toolkit plugin is described We furthermore present a user study we conducted to see how Cupboard can facilitate ontology reuse The updated user s guide i
27. r 2008 M d Aquin E Motta M Dzbor L Gridinoc T Heath and M Sabou Collaborative semantic authoring ntelligent Systems IEEE 23 3 80 83 May June 2008 M d Aquin E Motta M Sabou S Angeletou L Gridinoc V Lopez and D Guidi Toward a new generation of semantic web applications Intelligent Systems IEEE 23 3 20 28 2008 W B Frakes and R Baeza Yates nformation retrieval data structures and algorithms Prentice Hall Inc Upper Saddle River NJ USA 1992 Holger Lewen Mathieu d Aquin J r me Euzenat Chan Le Duc and Raul Palma D1 4 3 cupboard supporting ontology reuse by combining a semantic web gateway ontology registry and open ratings systems Technical Report D1 4 3 Universitat Karlsruhe TH Februar 2009 Holger Lewen Facilitating Ontology Reuse with a Topic Specific Trust Open Rating Sys tem Technical report Universit t Karlsruhe TH JUN 2009 http www aifb uni karlsruhe de WBS hle paper TR3 pdf Silvio Peroni Enrico Motta and Mathieu d Aquin Identifying key concepts in an ontology through the integration of cognitive principles with statistical and topological measures In John Domingue and Chutiporn Anutariya editors ASWC volume 5367 of Lecture Notes in Computer Science pages 242 256 Springer 2008 Guilin Qi Peter Haase and Qiu Ji D1 2 3 diagnosing and repairing inconsistent networked ontologies Technical Report D1 2 3 Universitat Karlsruhe TH August 2008
28. r file at the following address http cupboard open ac uk 8081 cupboard client api jar 3 1 Core Component the Watson Client API The core of the Cupboard system being the Watson system the Cupboard API reuses a large part of the Watson client API to access the corresponding SOAP services In the same way as for Watson these services provide 3 different types of functions Search functions These functions take as input keywords and a set of configuration parameters and return either ontologies indexed by Cupboard or the entities within an ontology that match the keywords with the given parameters Exploration functions These correspond to a variety of function to obtain meta information about the on tologies e g number of statements language used location or to obtain elements of the content of the ontologies classes relations etc Query function A function dedicated to the execution of SPARQL queries on selected ontologies is also available More information about the way to use these TROU and examples are provided in the documentation of In addition one important difference has been introduced in the Cupboard services and API compared the the ones of Watson the ability to restrict the search for ontologies to a particular ontology space Indeed using a generic filter mechanism it is possible to specify to the Cupboard API the particular Ontology Space one is interested in like in the following example where on
29. rasse 11 D 76128 Karlsruhe Germany Contact person Peter Haase E mail address pha aifb uni karlsruhe de Software AG SAG Uhlandstrasse 12 64297 Darmstadt Germany Contact person Walter Waterfeld E mail address walter waterfeld softwareag com Institut Jozef Stefan JSI Jamova 39 SL 1000 Ljubljana Slovenia Contact person Marko Grobelnik E mail address marko grobelnik ijs si University of Sheffield USFD Dept of Computer Science Regent Court 211 Portobello street S14DP Sheffield United Kingdom Contact person Hamish Cunningham E mail address hamish dcs shef ac uk Consiglio Nazionale delle Ricerche CNR Institute of cognitive sciences and technologies Via S Marino della Battaglia 44 00185 Roma Lazio Italy Contact person Aldo Gangemi E mail address aldo gangemi istc cnr it Food and Agriculture Organization of the United Nations FAO Viale delle Terme di Caracalla 00100 Rome Italy Contact person Marta Iglesias E mail address marta iglesias fao org Laboratorios KIN S A KIN C Ciudad de Granada 123 08018 Barcelona opain Contact person Antonio L pez E mail address alopez kin es D1 4 6 Cupboard Supporting Ontology Reuse by Combining a Semantic Web Gateway Ontology Registry and Open Ratings Systems Improved and Final Version Page 3 of 35 Work package participants The following partners have taken an active part in the work leading to the elaboration of this d
30. s provided in the annex D1 4 6 Cupboard Supporting Ontology Reuse by Combining a Semantic Web Gateway Ontology Registry and Open Ratings Systems Improved and Final Version Page 5 of 35 1 Introduction What is new in Cupboard 7 2 New Components in the Cupboard System 8 2 1 Key Concept Visualization 2 a a a a ees s 8 2 2 Alignment Server 2 llle sss saos 8 23 TSOR f x xx ROROROE SG eae GR Ge X m eee ee hae 8 3 The Cupboard Java API 10 3 1 Core Component the Watson Client APl 200 a 10 3 2 Obtaining Ontology Rating with the TS ORS Service lll lll 11 3 3 Updating an Ontology Space 2 2 lll a 11 3 4 Examples ofusage noaoono a a a 11 4 integrating Cupboard into the Watson plugin for the NeOn Toolkit 13 5 User Study 16 6 Distribution Modality 19 20 8 Appendix 21 8 1 User Manual s 2 2 a e oe eee See ee eee oe Eea EEA 21 8 1 1 lnstallaton rrr s 21 8 1 2 Getting started Logging in 22er 21 8 1 8 Ontology Space 22 ll esse es 21 8 1 4 Adding anontology oorr ss 21 Bibliography 35 2006 2010 C Copyright lies with the respective authors and their institutions Page 6 of 35 NeOn Integrated Project EU IST 027595 List of Figures 2 1 This screenshot shows how the AKTPortal ontology is displayed in Cupboard including the key CTI 9 4 1 The Watson Plugins preference panel 22r 13 4 2
31. time by the application to answer queries based on the ontologies it contains Also in order to have the benefit of both a specific interface on a wiki and of the added value of the Cupboard API in particular the rating system indexing etc a script has been developed that can automatically popu late an ontology space based on the ontology design patterns submitted to the OntologyDesignPatterns org portal see http cupboard open ac uk 8081 cupboard ODP D1 4 6 Cupboard Supporting Ontology Reuse by Combining a Semantic Web Gateway Ontology Registry and Open Ratings Systems Improved and Final Version Page 13 of Chapter 4 Integrating Cupboard into the Watson plugin for the NeOn Toolkit The Watson plugin for the NeOn Toolkit was developed on the basis of the Watson client API with the idea of bringing Semantic Web ontologies directly in the ontology development environment hence facilitating reuse As the two systems are based on the same core engine we first developed another plugin the Cupboard plugin realizing a very similar task but using ontologies submitted to Cupboard ontology spaces and the Cupboard API described above eoo b General gt Help gt Install Update Language Preferences Ontology Language Perspec OWL Preferences b Run Debug b Tasks Visualizer Watson Preferences Preferences Watson Preferences v Use Watson or Cupboard Use Watson as a source of ontologies 9 Use Cupboard as
32. to the databased and the web of trust is updated 2006 2010 C Copyright lies with the respective authors and their institutions Page 34 of 35 NeOn Integrated Project EU IST 027595 C Figure 8 19 The reviews are presented broken down into the 5 properties board up Reusability o good xxx teest naar Correctness epnwer x naar Complexity c o naar twk good teest Domain Coverage kk kkk Salman Review for xcvFirst in xcv By Mathieu DAQUIN By salman ELAHI By Salman NOOR By salman ELAHI By Salman NOOR By Salman NOOR By Mathieu DAQUIN By salman ELAHI By salman ELAHI displayed first based on the general opinion of the users The most relevant review is D1 4 6 Cupboard Supporting Ontology Reuse by Combining a Semantic Web Gateway Ontology Registry and Open Ratings Systems Improved and Final Version Page 35 of 35 Bibliography dCSFdCB 08 Mari del Carmen Su rez Figueroa Guadalupe Aguado de Cea Carlos Buil Klaas dMD 08 dMS 08 FBY92 LdE 09 Lew09 PMd08 QHJO8 Dellschaft Mariano Fern ndez L pez Andr s GarcSa Asunci n Gtechreport z P rez Ger man Herrero Elena Montiel Ponsoda Marta Sabou Boris Villazon Terrazas and Zheng Yufei D5 4 1 neon methodology for building contextualized ontology networks Technical Report D5 4 1 Universidad Politecnica de Madrid Februa
33. tologies matching the keyword fish are searched in the ontology space called Experiment1 SemanticContentSearchServiceLocator locator new SemanticContentSearchServiceLocator EXYM SemanticContentSearch scs locator getUrnSemanticContentSearch D1 4 6 Cupboard Supporting Ontology Reuse by Combining a Semantic Web Gateway Ontology Registry and Open Ratings Systems Improved and Final Version Page 11 of 35 String params fish SearchConf conf new SearchConf conf setEntities SearchConf CLASS SearchConf INDIVIDUAL SearchConf PROPERTY conf setScope SearchConf LOCAL NAME TSearchConf LITERALDL conf setMatch SearchConf EXACT MATCH String filters user Experiment1 conf setFilters filters SemanticContentResult res scs getSemanticContentByKeywords params conf System out println total t res length catch Exception e e printStackTrace System out println e getCause In addition to the services provided by the Watson engine the Cupboard API includes a number of other services from the other components which it integrates 3 2 Obtaining Ontology Rating with the TS ORS Service The TS ORS allows users to express reviews and assign scores to ontology properties such as reusability or complexity The Cupboard Java API includes a function based on a REST service of TS ORS to retrieve the overall rating for a particular ontology identified by its URI The follow
34. wen Ontology Space Ontology name Ontology file Datei ausw hlen Keine Datei ausgew hlt MM or Ontology URL or ontology source code Upload Figure 8 4 Using this form ontologies can be added to the ontology space 2006 2010 C Copyright lies with the respective authors and their institutions Page 24 of 35 NeOn Integrated Project EU IST 027595 cupe2 The current default namespace of the FOAF ontology is http xmins com Aoaft 0 1 In order for the URI of this ontology and of the entities it contains to be dereferenceable to its location in Cupboard it should be changed into set to http cupboard open ac uk 8081 cupboard ontology hlewen FOAF Do you agree with this change OK do that Hmm prefer not Note that if you chose not to apply this change the ontology will still be added to your Ontology Space but the entities it contains will not be dereferenceable Figure 8 5 Here the user can decide to adapt the namespace of the ontology board up C Ontology Metadata Form General Metadata El Ontology Name URI Description Ji Creation Date Provenance Metadata l Applicability Metadata l Format Metadata Hl Availability Metadata H Statistics Metadata El Figure 8 6 Metadata can be entered for the ontology D1 4 6 Cupboard Supporting Ontology Reuse by Combining a Semantic Web Gateway Ontology Registry and Open Ratings Systems Improved and Fina
35. within the specified ontology D1 4 6 Cupboard Supporting Ontology Reuse by Combining a Semantic Web Gateway Ontology Registry and Open Ratings Systems Improved and Final Version C U p Keywords university boa rd Ontology URI http localhost 8080 cupboard ontology selahilselahiT Found 10 entities 4 hip annotation semanticweb org 2004 iswcitUniversity of Karlsruhe Label Comment null hip annotation semanticweb org 2004 iswcitUniversity of Karlsruhe Label Comment null hip annotation semanticweb org 2004 iswcitUniversity of Karlsruhe EI Label Comment null hi p annotation semanticweb org 2004 iswcitUniversity of Karlsruhe El Label Comment null hip annotation semanticweb org 2004 iswcitUniversity of Karlsruhe El Label Comment null hup annotation semanticweb org 2004 iswc University E hup annotation semanticweb org 2004 iswc University E Ghtp annotation semanticweb org 2004 iswcitUniversity El Label Comment null Ghtip annotation semanticweb org 2004 iswcitUniversity E Ghup annotation semanticweb org 2004 iswcitUniversity E Page 31 of Search Figure 8 16 After clicking on the the results are extended to display additional information 2006 2010 C Copyright lies with the respective authors and their institutions Page 32 of 35 NeOn Integrated Project EU IST 027595 cupere Reusability o Comment V
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