Exposing Library Holdings (meta)data in RDF Using schema.org Seman:cs

Transcription

1 Exposing Library Holdings (meta)data in RDF Using schema.org Seman:cs Myung- Ja (MJ) Han Timothy W. Cole Patricia Lampron M. Janina Sarol University of Illinois at Urbana- Champaign DCMI2015 São Paulo Brasil 1

2 Quick Ques:ons DCMI2015 São Paulo Brasil 2

3 Library Linked Data How many of you have transformed your data to linked data? How many of you have experimented with linked data? How many of you are waiong for the community to build best pracoces/standards? DCMI2015 São Paulo Brasil 3

4 Some Background DCMI2015 São Paulo Brasil 4

5 DCMI2015 São Paulo Brasil 5

6 schema.org Provides a broad vocabulary to describe things on the web Features the same semanocs used by main portals such as google and yahoo Has a class <Offer> to represent library holdings data DCMI2015 São Paulo Brasil 6

7 Why Holdings Data? Libraries share the same bibliographic data with other libraries Holdings and item data help users to locate informa4on resources and how to access them Holdings and item data can be used for faceted browse op4ons Unique data that each library can provide to the web! DCMI2015 São Paulo Brasil 7

8 What Holdings and Item Data Describe ClassificaOon number Copy number LocaOon of the item Held items (for serials and mulo- volume sets) with volume or enumeraoon Availability/loan period Barcode Physical condi4on DCMI2015 São Paulo Brasil 8

9 Holdings and Item Data in OPAC DCMI2015 São Paulo Brasil 9

10 DCMI2015 São Paulo Brasil 10

11 Experimenta:on DCMI2015 São Paulo Brasil 11

12 ExperimenOng with Holdings Data Holdings and item data associated with 5.4 million unique print bibliographic records Analyze types of holdings data IdenOfy characterisocs and challenges of holdings and item data Find a best way to describe them as linked data DCMI2015 São Paulo Brasil 12

13 schema.org for Holdings Data Holdings and item specific informa:on schema.org/bibextend Community Group Recommenda:on Library Shelving loca:on Call number Item barcode Copy number Borrowing terms Item status Online holdings seller availableatorfrom sku serialnumber Not mapped businessfuncoon availability Not mapped DCMI2015 São Paulo Brasil 13

14 [VALUE] Types of Holdings [VALUE] [VALUE] [VALUE] Single- Part, 1 copy only Single- Part, mulople copies MulOpart, 1 or more copies [VALUE] Serial, 1 or more copies All types that also have URL(s), 1 or more print copies DCMI2015 São Paulo Brasil 14

15 Holdings and Item Data RelaOonships between holdings and item data Bibliographic record Holdings record Item record DCMI2015 São Paulo Brasil 15

16 Holdings and Item Data RelaOonships between holdings and item data Bibliographic record Holdings record Item record DCMI2015 São Paulo Brasil 16

17 Holdings and Item Data RelaOonships between holdings and item data Bibliographic record Holdings record Item record DCMI2015 São Paulo Brasil 17

18 Holdings and Item Data RelaOonships between holdings and item data Bibliographic record Holdings record Item record DCMI2015 São Paulo Brasil 18

19 Complex Holdings Data Scenarios How to describe Complex relaoonships between bibliographic, holdings, and item data? A bibliographic record with mulople copies in one locaoon and an e- format A bibliographic record for a mulo- volume set with mulople copies in several locaoons A bibliographic record for a serial with mulople copies with different volumes DCMI2015 São Paulo Brasil 19

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21 Complex Holdings Data schema:haspart [ a schema:publicaoonvolume ; schema:volumenumber "1972" ; schema:offers [ a schema:aggregateoffer ; schema:seller <hkp://id.loc.gov/authorioes/names/n > ; schema:itemoffered [ a schema:someproducts ; schema:offers [ a schema:offer ; schema:availableatorfrom [ a schema:place ; schema:name "Oak Street Facility [request only]" ] ; schema:itemoffered [ a schema:individualproduct ; schema:sku " Un3m" ; schema:haspart a schema:offer schema:aggregateoffer ;[ ; a schema:seller schema:publicaoonvolume schema:availableatorfrom <hkp://id.loc.gov/authorioes/names/n > ; [ ; schema:volumenumber schema:itemoffered a schema:place ; [ "1972" ; schema:offers a schema:someproducts schema:name [ "Oak Street ; Facility schema:serialnumber [request only]" " " ; schema:name "Copy Number: 1" ] ; ] ], [ schema:itemoffered [ a schema:offer ; schema:availableatorfrom [ a schema:individualproduct ; a schema:place ; schema:name "Oak Street Facility [request only]" schema:sku " Un3m" ; ] ; schema:itemoffered [ schema:serialnumber " " a schema:individualproduct ; ; schema:name "Copy Number: 1" ] schema:sku " Un3m" ; schema:serialnumber " " ; schema:name "Copy Number: 2" ] ] ] ; schema:offercount "2" DCMI2015 São Paulo ] Brasil 21 ]

22 Holdings and item specific informa:on Schema.org/BibExtend Community Group Recommenda:on UIUC Approaches Library seller seller Shelving Loca:on availableatorfrom availableatorfrom/place/name Call number sku itemoffered/individualproduct/sku Item barcode serialnumber itemoffered/individualproduct/ serialnumber Copy number Not mapped itemoffered/individualproduct/name Borrowing terms businessfuncoon Not mapped Item status availability Not mapped Online Holdings Not mapped itemoffered/individualproduct /url DCMI2015 São Paulo Brasil 22

23 Discussions DCMI2015 São Paulo Brasil 23

24 Challenges of Holdings Data Gathering holdings data from various sources ILS Vendor provided systems Irregular formaong of volume informaoon Published volumes vs bound volumes Data created using different pracoces Changes of standards Each insotuoon has its own best pracoces DCMI2015 São Paulo Brasil 24

25 schema.org for Expressing Holdings data Schema.org / BibExtend may need Immediate availability May need AvailableToLoan, OnLoan, and InLibraryUseOnly (or RoomUseOnly)? Borrowing terms May need Loan, NonCirculaOng, Request? Eligible customers May need Offer property to describe the eligibility requirements? DCMI2015 São Paulo Brasil 25

26 Library PracOces Library holdings data is based on copy level Works well in inventory Cataloging convenoon for holdings and item data is not consistent Holdings and item data for electronic resources rely heavily on vendors and publishers DCMI2015 São Paulo Brasil 26

27 Do we know how our users use holdings and item data? Further Discussions DCMI2015 São Paulo Brasil 27