An evaluation of taxonomic name finding & next steps in Biodiversity Heritage Library (BHL) developments

An evaluation of taxonomic name finding & next steps in Biodiversity Heritage Library (BHL) developments Chris Freeland Technical Director, BHL Director of Bioinformatics, Missouri Botanical Garden

Goals of BHL ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],http://www.biodiversitylibrary.org

BHL Institutions ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Now Online Only 290 million to go! See you in 2048!

Scanning Operations ,[object Object],[object Object],[object Object],[object Object],[object Object],Locations of BHL/IA Scanning Centers

Complexities of distributed, mass scanning from NYBG from Smithsonian

Open Access Data The snakes of Australia ; an illustrated and descriptive catalogue of all the known species. By Gerard Krefft... Publisher: Sydney,T. Richards, Government Printer,1869. PDF OCR XML JP2

Raw Image Converted to text via OCR Name finding via TaxonFinder Extract names Submit to NameBank SOAP response Name Finding in action with Taxonomic Intelligence…

Name Finding Stats to date * ,[object Object],[object Object],[object Object],[object Object],*19 October 2008

APIs & Data Sharing ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Name Finding Evaluation ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],See Poster in hall

Characteristics of sample = 86.91% 2610 Total Number of Unique Names 3003 Total Number of Names 7.7 Average Number of Names per Page 446.8 Average Number of Words per Page 392 Number of Pages

OCR error rate for names only Top OCR errors Of the 3,003 names, 1,056 were incorrectly transcribed by OCR. e->o 14 c->e 7 h->ii 13 i->l 6 h->l 12 u->n 5 u->ii 11 u->I 4 r->i 10 e->c 3 l->i 9 Omit Space 2 n->v 8 Insert Space 1 35.16%

Performances of algorithms TaxonFinder FAT Excluding names with OCR errors Including names with OCR errors 28.20% 40.32% Precision 23.34% 36.62% Recall 25.77% 38.47% F-score 32.25% 43.77% Precision 17.21% 25.82% Recall 24.73% 34.80% F-score

Considerations ,[object Object],[object Object],[object Object],[object Object],[object Object]

Recommendations ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Up next: BHL Article Repository ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

And if that wasn’t enough… ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Contact ,[object Object],[object Object],[object Object],[object Object],[object Object]

An evaluation of taxonomic name finding & next steps in Biodiversity Heritage Library (BHL) developments

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An evaluation of taxonomic name finding & next steps in Biodiversity Heritage Library (BHL) developments