Lars G. Svensson. DDC as Linked Data: DNB efforts, other efforts and opportunities

Transcription

1 Lars G. Svensson DDC as Linked Data: DNB efforts, other efforts and opportunities 1 30 EMEA 2011: Future Search for Technical Services March 2, 2011

2 When people search for information to-day, the usually turn to the web PACS STW 3 30 EMEA 2011: Future Search for Technical Services March 2, 2011

3 We know, however, that we usually are served documents 4 30 EMEA 2011: Future Search for Technical Services March 2, 2011

4 The information often lacks the proper context 5 30 EMEA 2011: Future Search for Technical Services March 2, 2011

5 We need a way to organize information, so that it becomes more useful 6 30 EMEA 2011: Future Search for Technical Services March 2, 2011

6 With Linked Data, we can, and in the DNB, DDC is part of the solution Can you help me find recent examples of plagiarism? 7 30 EMEA 2011: Future Search for Technical Services March 2, 2011

7 Linking Open Data cloud diagram, by Richard Cyganiak and Anja Jentzsch. With Linked Data we can more easily reuse other datasets 9 30 EMEA 2011: Future Search for Technical Services March 2, 2011

8 Library catalogues (still) follow the record paradigm EMEA 2011: Future Search for Technical Services March 2, 2011

9 It s difficult to re-use library data outside the library domain =LDR 02487nam a c 4500 = =003 DE-101 = =007 tu = s2009\\\\gw\ r \00 ger\\ =015 \\$a09,a09,0491$2dnb =016 7\$2DE-101$a =020 \\$a $ckart. : EUR 88.00$ =035 \\$a(de-599)dnb =040 \\$a1139$bger$cde-101$d1240$erakwb =041 \\$ager =044 \\$cxa-de =082 09$a $222/ger =082 09$a $222/ger =084 \\$a340$a320$2sdnb =089 \\$c $g73 =089 \\$c342.2$d $g4 =090 \\$ab =100 1\$aGuttenberg, Karl-Theodor zuœ$4aut$d1971-$0(de-588a) $0(de-101) =245 10$aVerfassung und Verfassungsvertrag$bkonstitutionelle Entwicklungsstufen in den USA und der EU$cvon Karl-Theodor zu =260 3\$aBerlin$bDuncker & Humblot$c2009 =300 \\$a475 S.$c24 cm =490 1\$aSchriften zum internationalen Recht$vBd. 176 =610 27$0(DE-588c) $0(DE-101) $2swd$aEuropäische Union$tVerfassung <Entwurf, 2003> =610 27$0(DE-588c) $0(DE-101) $2swd$aUSA$tVerfassung <1787> =650 \7$0(DE-588c) $0(DE-101) $2swd$aVerfassungsrecht =650 \7$0(DE-588c) $0(DE-101) $2swd$aRechtsvergleich =650 \7$0(DE-588c) $0(DE-101) $2swd$aPräambel EMEA 2011: Future Search for Technical Services March 2, 2011 =650 \7$0(DE-588c) $0(DE-101) $2swd$aGott =651 \7$0(DE-588c) $0(DE-101) X$2swd$aEuropäische Union

10 It s difficult for libraries to re-use data from outside the library domain MARC only beyond this point ILS EMEA 2011: Future Search for Technical Services March 2, 2011

11 With interlinked subject vocabularies we can offer better subject access Plagiat + Försvarsminister Plagiat + Verteidigungsminister Plagiarism + Minister of Defence EMEA 2011: Future Search for Technical Services March 2, 2011

12 DDC is particularly interesting, since it s not really human-readable 808? 098.3? ? ? EMEA 2011: Future Search for Technical Services March 2, 2011

13 Interlinked search with subject headings and DDC improves recall ddc: swd: dnb: SWD DDC Plagiat pnd: EMEA 2011: Future Search for Technical Services March 2, 2011

14 DNB publishes the German DDC as linked data with a crosswalk to the SWD Literature, Rhetoric and sg:340 gnd: sg:800 coordination-of coordination-of dnb:det2 ddc: dnb:det2 ddc: EMEA 2011: Future Search for Technical Services March 2, 2011 Rhetoric and collections [

15 With semantic networks, we can offer innovative ways to search and present data Enter your search term here GO EMEA 2011: Future Search for Technical Services March 2, 2011

16 CONTENTUS pulls together data from different semantically interlinked sources EMEA 2011: Future Search for Technical Services March 2, 2011

17 In Europeana, we align data from several sources to create semantic links EMEA 2011: Future Search for Technical Services March 2, 2011

18 So does Linked Data help with knowledge discovery? Sure, what kind of plagiarism? EMEA 2011: Future Search for Technical Services March 2, 2011

19 In order to turn information into knowledge, we need the context EMEA 2011: Future Search for Technical Services March 2, 2011

20 With Linked Data, we can, and in the DNB, DDC is part of the solution EMEA 2011: Future Search for Technical Services March 2, 2011

21 Linked Data and semantic technologies enables innovative search and presentation EMEA 2011: Future Search for Technical Services March 2, 2011

22 The Giant Global Graph: Where Callimachos, Melvil Dewey and Tim Berners-Lee come together EMEA 2011: Future Search for Technical Services March 2, 2011