Edmundo	  Tovar,	  Nelson	  Piedra,	  Jorge	  López,	  Janeth	  Chicaiza	  Bali	  Indonesia	  May	  8-­‐10,	  2013	  Seren...
The main purpose of the service developed is toprovide students, teachers and self-learners withan faceted search engine t...
Faceted search, also called faceted navigation, is atechnique for accessing content organized according to afaceted classi...
Facets refer to categories used to characterizeinformation items in a collection.A faceted classification system classifie...
Faceted exploration is a proven technique for supportingflexible exploration and discovery through the informationspace.Th...
Serendipity	  is	  for	  people	  Serendipity is an faceted search engine based on SemanticWeb Technologies. Open Linked D...
Serendipity is an faceted search engine based on Semantic WebTechnologies. Serendipity is based on Flamenco.The main objec...
Serendipity use Linked Data Design Issuesto retrieve information that is semanticallydescribed and related to open educati...
The collection under study consisted of approximately8000 OpenCourseWare in the collection of the OCW-Dataset of LOCWD Pro...
The data extracted by Serendipity been validatedthrough the sponsorship and collaboration ofOpenCourseWare Consortium.Spon...
i.	  Faceted	  Query	  of	  OCW	  	  based	  on	  Linked	  OpenCourseWare	  data	  	  CASE:	  	  FIND,	  OpenCourseWare	  ...
The Serendipity faceted exploration is a guidedand exploratory search mechanism, whichprovides an iterative way to refine ...
hRp://serendipity.utpl.edu.ec	  	  Serendipity	  is	  an	  OCW	  faceted	  search	  engine	  based	  on	  SemanVc	  Web	  ...
Guided navigation Previewsof ResultsRefine searchAdd keywordsWith	  Serendipity	  Explore	  OCW	  in	  an	  integrated	  a...
The user, when presented with the facets, islikely to discover new facets of the query thatthey were not aware of before.W...
FacetsShare this OCWInspect current OCWRefine your searchAccess	  the	  full	  descripDon	  of	  the	  courses	  as	  publ...
Inspect the result fromOCW original siteGet	  more	  accurate	  and	  complete	  results,	  since	  it	  locates	  OCWs	  ...
Link current OCWtoOther LinkedData Source
ii.	  Map	  to	  visualize	  OER	  Points	  of	  Interest	  
As an important feature of Serendipity,Serendipity POIs (Points of Interest), allowsusers visualize data of OCW/OER/MOOC/O...
Serendipity POIs use icons to represent different categories of POI on a mapgraphically. A	  point	  of	  interest,	  or	 ...
A	  point	  of	  interest	  specifies,	  at	  minimum,	  the	  laDtude	  and	  longitude	  of	  the	  POI,	  assuming	  a	 ...
 An	  example	  is	  a	  point	  on	  the	  Earth	  represenVng	  the	  locaVon	  of	  the	  MassachuseRs	  InsVtute	  of	...
Other	  example	  is	  a	  point	  on	  the	  Earth	  represenVng	  the	  locaVon	  of	  the	  University	  of	  Cape	  To...
Serendipity use the term POIs when referring to Open Repositories ofOCW/OER/OEP/Projects, Open Data for educational conten...
iii.	  Open	  Data	  from	  Open	  EducaDonal	  Content	  
Serendipity POIs seeks to become arepository for the information about OERthat the Serendipity Multiagent Environmentcolle...
Serendipity Open	  Data	  is	  the	  idea	  that	  certain	  data	  should	  be	  freely	  available	  to	  everyone	  to	...
Why	  publish	  Linked	  OER	  Data?	  •  Because	  LinkedData	  holds	  the	  potenVal	  to	  move	  our	  OER	  collecVo...
iv.	  Suggest	  new	  Points	  of	  InformaDon	  
The purpose of Serendipity POIs - Open	  data	  is to increase public access tohigh value, machine readable datasets gener...
v.	  Data	  visualizaDon	  
Why	  OER	  DataViz?	  Serendipity POIs - Open	   data	   contains	   valuable	  informaVon	   that	   will	   drive	   in...
The	  main	  goal	  of	  data	  visualizaDon	  is	  its	  ability	  to	  visualize	  OER	  data,	  communicaVng	  informaV...
Data	  VisualizaDon	  1.	  It	  shows	  informaVon	  of	  UniversiVes	  classified	  hierarchically,	  taken	  starVng	  po...
Data	  VisualizaVon	  2:	  Tree	  structures	  to	  show	  another	  way	  to	  visualize	  the	  informaVon	  the	  unive...
Data	  VisualizaVon	  3:	  Search	  courses	  by	  tag	  and	  use	  geographic	  informaVon	  to	  show	  courses	  of	  ...
@nopiedra	  #ocwcglobal	  #OCW	  #OER	  #LOCWD	  #LinkedData	  #UTPL	  Thanks!@nopiedra,	  @etc91	  
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OCWC Global Conference 2013: Serendipity

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Edmundo Tovar, Nelson Piedra, Jorge Lopez, Janeth Chicaiza

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OCWC Global Conference 2013: Serendipity

  1. 1. Edmundo  Tovar,  Nelson  Piedra,  Jorge  López,  Janeth  Chicaiza  Bali  Indonesia  May  8-­‐10,  2013  Serendipity  a  Faceted  Search  engine  for  OpenCourseWare  Content  @nopiedra  #ocwcglobal  #OCW  #OER  #Serendipity  #UTPL  
  2. 2. The main purpose of the service developed is toprovide students, teachers and self-learners withan faceted search engine that allow them to findand discover open educational resources relatedto OCW from OpenCourseWareConsortium andOCW-Universia.Purpose  of  Serendipity  
  3. 3. Faceted search, also called faceted navigation, is atechnique for accessing content organized according to afaceted classification system, allowing users toexplore a collection of information by applyingdynamic and multiple filters.With the benefit of search results diversification, no needfor a priori knowledge, and never leading to zero result, itcan significantly reduce information overload.About  Faceted  ExploraDon  
  4. 4. Facets refer to categories used to characterizeinformation items in a collection.A faceted classification system classifies eachinformation element along multiple explicit dimensions,enabling the classifications to be accessed and orderedin multiple ways rather than in a single, pre-determined,and taxonomic order.Facets  and  taxonomic  order  
  5. 5. Faceted exploration is a proven technique for supportingflexible exploration and discovery through the informationspace.The user can refine queries based on facets such assize, language, knowledge-domain, geographiclocalization and neighbourhood characteristics. Thefacets are extracted by applying a parser specialized forparsing classified content.Refine  queries  based  on  facets  
  6. 6. Serendipity  is  for  people  Serendipity is an faceted search engine based on SemanticWeb Technologies. Open Linked Data from Open EducationalContent. Current version of Serendipity is based on Flamenco.
  7. 7. Serendipity is an faceted search engine based on Semantic WebTechnologies. Serendipity is based on Flamenco.The main objectives of faceted navigation are to support flexiblenavigation through the information space: refining and expanding,provide suggestions of exploration choices at each point in thesearch process, prevent empty result sets, and provide a sense ofcontrol and reduce confusion in the use.About  Serendipity  
  8. 8. Serendipity use Linked Data Design Issuesto retrieve information that is semanticallydescribed and related to open educationalresources (OER) that are accessible viaInternet. Linked data have the potential ofcreate bridges between OER data silos.  
  9. 9. The collection under study consisted of approximately8000 OpenCourseWare in the collection of the OCW-Dataset of LOCWD Project.This collection contained standard OER metadata facets,including creators names, language, licenses of OCW,repositories, tags, knowledge areas, universities,countries and dates.CollecDon  PreparaDon  
  10. 10. The data extracted by Serendipity been validatedthrough the sponsorship and collaboration ofOpenCourseWare Consortium.Sponsorship  from  OCWC  
  11. 11. i.  Faceted  Query  of  OCW    based  on  Linked  OpenCourseWare  data    CASE:    FIND,  OpenCourseWare  about  “Web”  
  12. 12. The Serendipity faceted exploration is a guidedand exploratory search mechanism, whichprovides an iterative way to refine search resultsby a faceted taxonomy or a schema ofclassification.Serendipity  facet  exploraDon  
  13. 13. hRp://serendipity.utpl.edu.ec    Serendipity  is  an  OCW  faceted  search  engine  based  on  SemanVc  Web  Technologies.    
  14. 14. Guided navigation Previewsof ResultsRefine searchAdd keywordsWith  Serendipity  Explore  OCW  in  an  integrated  and  incremental  manner,  from  any  of  the  repositories  of  insVtuVons  that  publish  OpenCourseWare.  
  15. 15. The user, when presented with the facets, islikely to discover new facets of the query thatthey were not aware of before.When clicking on a facet, they will narrow downtheir search by expanding the original query withthe suggested facet.Discover  new  facets  by  expanding    the  original  query  
  16. 16. FacetsShare this OCWInspect current OCWRefine your searchAccess  the  full  descripDon  of  the  courses  as  published  by  the  home  insVtuVon,  along  with  complimentary  informaVon  such  as  language,  license,  author,  country,  geographic  locaVon  of  the  insVtuVon  and  other  semanVcally  related  informaVon  available  via  the  Web.    Propose change
  17. 17. Inspect the result fromOCW original siteGet  more  accurate  and  complete  results,  since  it  locates  OCWs  using  different  metadatas  and  data  elements,  providing  the  user  with  visible  opVons  that  help  clarify  and  refine  the  queries.    
  18. 18. Link current OCWtoOther LinkedData Source
  19. 19. ii.  Map  to  visualize  OER  Points  of  Interest  
  20. 20. As an important feature of Serendipity,Serendipity POIs (Points of Interest), allowsusers visualize data of OCW/OER/MOOC/OEP/Projects/Repositories from an dataset based onLinked Data technologies.About  Serendipity  POIs  
  21. 21. Serendipity POIs use icons to represent different categories of POI on a mapgraphically. A  point  of  interest,  or  POI,  is  a  OER  specific  point  locaVon  that  someone  may  find  useful  or  interesVng.    
  22. 22. A  point  of  interest  specifies,  at  minimum,  the  laDtude  and  longitude  of  the  POI,  assuming  a  certain  map  datum  (extrated  from  serendipity  datasource).  A  name  or  descripVon  for  the  POI  is  usually  included,  and  other  informaVon  such  as  descripVon,  number  of  resources,  contact  informaVon,  language,  license  or  a  link  to  dbpedia/freebase  may  also  be  aRached.    
  23. 23.  An  example  is  a  point  on  the  Earth  represenVng  the  locaVon  of  the  MassachuseRs  InsVtute  of  Technology,  or  a  point  on  Spain  represenVng  the  locaVon  of  an  OCW  University.      
  24. 24. Other  example  is  a  point  on  the  Earth  represenVng  the  locaVon  of  the  University  of  Cape  Town  
  25. 25. Serendipity use the term POIs when referring to Open Repositories ofOCW/OER/OEP/Projects, Open Data for educational content, MOOCs orany other categories used in open educational systems.
  26. 26. iii.  Open  Data  from  Open  EducaDonal  Content  
  27. 27. Serendipity POIs seeks to become arepository for the information about OERthat the Serendipity Multiagent Environmentcollects.Therefore, the site would publish to thepublic any data collected that is not privateor restricted.CollecDng  and  downloading  OER  Data  
  28. 28. Serendipity Open  Data  is  the  idea  that  certain  data  should  be  freely  available  to  everyone  to  use  and  republish  as  they  wish,  without  restricVons  from  copyright,  or  other  mechanisms  of  control.  
  29. 29. Why  publish  Linked  OER  Data?  •  Because  LinkedData  holds  the  potenVal  to  move  our  OER  collecVons  out  of  their  silos  •  Open  the  data  and  content  silos,  to  leverage  the  knowledge  capital  represented  by  our  OER  repositories  •  To  enrich  our  informaVon  landscape,  to  improve  visibility  •  To  improve  ease  of  discovery  open  academic  resources  •  To  improve  ease  of  consumpVon  and  reuse  of  OCW  •  To  reduce  redundancy  in  searched  of  OER  •  PromoVng  innovaVon  and  Added  Value  to  Open  EducaVonal  Content  
  30. 30. iv.  Suggest  new  Points  of  InformaDon  
  31. 31. The purpose of Serendipity POIs - Open  data  is to increase public access tohigh value, machine readable datasets generated by volunteers and dataextracted from Serendipity multiagent environment.
  32. 32. v.  Data  visualizaDon  
  33. 33. Why  OER  DataViz?  Serendipity POIs - Open   data   contains   valuable  informaVon   that   will   drive   insights,   innovaVons,   and  discoveries,  but  it  can  be  difficult  to  access  and  digest.      Using   data   visualizaVon,   we’re   simplify   the   complexity  and   drive   a   deeper   understanding   of   the   open  educaVonal  context.  
  34. 34. The  main  goal  of  data  visualizaDon  is  its  ability  to  visualize  OER  data,  communicaVng  informaVon  clearly  and  effecVvelty.  
  35. 35. Data  VisualizaDon  1.  It  shows  informaVon  of  UniversiVes  classified  hierarchically,  taken  starVng  point  to  conVnents,  then  countries,  ciVes  and  universiVes  
  36. 36. Data  VisualizaVon  2:  Tree  structures  to  show  another  way  to  visualize  the  informaVon  the  universiVes  members  of  OCW  iniVaVves.  
  37. 37. Data  VisualizaVon  3:  Search  courses  by  tag  and  use  geographic  informaVon  to  show  courses  of  universiVes  and  social  network  analysis  (SNA)  to  form  networks  of  collaboraVon  and  recommend  related  tags  
  38. 38. @nopiedra  #ocwcglobal  #OCW  #OER  #LOCWD  #LinkedData  #UTPL  Thanks!@nopiedra,  @etc91  

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