MetaSearch vs Harvesting and Indexing

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https://doi.org/10.6084/m9.figshare.11854920.v1 A comparison between metasearch/federated search and harvesting & indexing in libraries.

Tecnología Deportes

MetaSearch vs Harvesting and Indexing Lukas Koster Library of the University of Amsterdam -- http://commonplace.net 2009 http://www.flickr.com/photos/donpezzano/3044975399/

So many databases to search

MetaSearch – Federated Search Z39.50 SRU Proprietary Search Translate search syntax MARC21 MARCXML DC Conversion Merging Deduplication Ranking (First 30 per DB) Results Database Connectors MetaSearch tool Databases Searching and Data fetching: One integrated interdependent on-the-fly procedure Search Engine

Technical bottlenecks Z39.50 SRU Proprietary Search Translate search syntax MARC21 MARCXML DC Conversion Merging Deduplication Ranking (First 30 per DB) Results Database Connectors MetaSearch tool Databases Connection Access Authorisation Search Engine

Technical bottlenecks ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

MetaSearch limitations ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Author searches ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Variations in author names

Subject searches ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Multilingual searches ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

All processing on the fly ,[object Object],[object Object],[object Object],[object Object],[object Object]

Speed (slowness) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Limited number of databases ,[object Object],[object Object],[object Object],[object Object],[object Object]

Not all results in first set ,[object Object],[object Object],[object Object]

Relevance ,[object Object],[object Object],[object Object],[object Object],[object Object]

Solution? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Search with MetaSearch

Translate search syntax on the fly

Fetching results

Conversion of results on the fly

Conversion of results on the fly

Conversion of results on the fly

Results with MetaSearch

Results with MetaSearch

Harvesting and indexing Search Normalising Indexing Ranking Results Central index H&I tool Databases Harvesting Searching and Data fetching: Two completely separate procedures Search Engine

Advantages of H&I ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

H&I: Aquabrowser

H&I: Primo

MetaSearch = “Just in time” ,[object Object],[object Object],[object Object],http://www.flickr.com/photos/stijnnieuwendijk/125159282/

H&I = “just in case” ,[object Object],[object Object],[object Object],http://www.flickr.com/photos/brewbooks/2131521680/

Images ,[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]

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MetaSearch vs Harvesting and Indexing

1. MetaSearch vs Harvesting and Indexing Lukas Koster Library of the University of Amsterdam -- http://commonplace.net 2009 http://www.flickr.com/photos/donpezzano/3044975399/

2. So many databases to search

3. MetaSearch – Federated Search Z39.50 SRU Proprietary Search Translate search syntax MARC21 MARCXML DC Conversion Merging Deduplication Ranking (First 30 per DB) Results Database Connectors MetaSearch tool Databases Searching and Data fetching: One integrated interdependent on-the-fly procedure Search Engine

4. Technical bottlenecks Z39.50 SRU Proprietary Search Translate search syntax MARC21 MARCXML DC Conversion Merging Deduplication Ranking (First 30 per DB) Results Database Connectors MetaSearch tool Databases Connection Access Authorisation Search Engine

5.

6.

7.

8. Variations in author names

9.

10.

11.

12.

13.

14.

15.

16.

17. Search with MetaSearch

18. Translate search syntax on the fly

19. Fetching results

20. Conversion of results on the fly

21. Conversion of results on the fly

22. Conversion of results on the fly

23. Results with MetaSearch

24. Results with MetaSearch

25. Harvesting and indexing Search Normalising Indexing Ranking Results Central index H&I tool Databases Harvesting Searching and Data fetching: Two completely separate procedures Search Engine

26.

27. H&I: Aquabrowser

29.

30.

31.