1 / 32

Ray Denenberg

Workshop 20. Metasearch - the NISO Initiative. March 25, 2006; Washington. Ray Denenberg. Ralph LeVan. Metasearch. …. Also known as. parallel search federated search broadcast search cross-database search. NISO: Definition, Problem, Challenge. NISO Definition

Download Presentation

Ray Denenberg

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Workshop 20 Metasearch - the NISO Initiative March 25, 2006; Washington Ray Denenberg Ralph LeVan

  2. Metasearch

  3. …. Also known as • parallel search • federated search • broadcast search • cross-database search

  4. NISO: Definition, Problem, Challenge • NISO Definition • “search and retrieval spanning multiple databases, sources, platforms, protocols, and vendors at one time.” • the Problem ..... • Current systems require users to know how to select, access and search specific databases. • and the corresponding Challenge ..... • To create an environment that helps users find what they are seeking while minimizing what they need to know

  5. NISO: “Why Bother?” • Because most patrons do not care where information is or who packaged it. • Because Google cannot do it all.

  6. NISO Metasearch Initiative: Goals • metasearch service providers • offer more effective and responsive services • content providers • deliver enhanced content • protect their intellectual property • libraries • deliver services that distinguish them from Google and other free web services.

  7. Metasearch Topological Entities Meta- searcher Client Database

  8. Metasearch Topological Model Database Meta- searcher Client Database Database

  9. Recall Goals: • metasearchservice providers to offer more effective and responsive services • content providers to deliver enhanced content and protect their intellectual property • libraries to deliver services that distinguish them from Google and other free web services.

  10. Topological Client Metasearcher Database NISO Defined: Library Metasearch Provider Content Provider Entities

  11. offer more effective and responsive services deliver “distinguished” services deliver enhanced content; protect intellectual property Meta- searcher Client Database Contentprovider Service provider Library

  12. Protocol Model Database Meta- searcher Client Database Protocol Database Protocol

  13. Metasearch Protocol Model Database Meta- searcher Client Database Protocol Database Protocol

  14. Metasearch Protocol Database Meta- searcher Database Database Protocol

  15. NISO Metasearch Initiative

  16. Metasearch Initiative Committee Charge • identifying/developing standards/ best practices to improve interoperability between metasearch engines, and content providers • identifying a simple search/retrieve protocol to help database providers more effectively interoperate with metasearching applications.

  17. Metasearch Initiative Committee Charge - Boiling it Down • interoperability • between metasearch engines and content providers. • protocol • Identifying one - for interoperability between metasearch engines and content providers.

  18. Task Groups • TG 1: Access Management • TG2: Collection Description • TG 3: Search/Retrieve

  19. TG 1: Access Management • Authentication • Authorization

  20. Potential Authentication Technologies. • Non-authenticated identification • IP recognition • Proxy Servers • Referring URL • Embedded data in URL • Vendor provided Javascript • Cookies • Shouting • Proprietary APIs • NCIP. SIP2. • LDAP • Shibboleth • Kerberos • Athens (UK) . • PAPI • Tequila

  21. TG1 Recommendations • Now • IP authentication • Username / Password • Potential for the future • Shibboleth

  22. TG2: Collection Description Service Description: used by applications to determine how to access remote services. Collection Description: used by humans or applications to select collections from those made available by a metasearch service.

  23. TG 3: Search/Retrieve • Describe current practice….. • vocabulary ….. • template …… • Inventory …… • Citation level data elements • Investigate Result Set and Record level metadate • Review SRW/SRU and recommend modifications

  24. TG 3: Search/Retrieve • Citation level data elements • Investigate Result Set and Record level metadata • Review SRW/SRU and recommend modifications

  25. Citation Level Data Elements • http://www.niso.org/standards/resources/MI-Citation_Elements_v1.pdf

  26. Result Set and Record level metadata

  27. Result Set metadata • Branding • Clustering • Database name • Diagnostic messages • List of terms • Postings, count by term • Record count • Resources used • Result status • Sort order

  28. Record Level metadata • Application URI • Character Set • Constraints • Cost Info • Dates (creation, last modified, reviewed) • Language • Position in result set • Processing instructions • Rank • Score • Size

  29. Review SRW/SRU and recommend modifications

  30. (None.)

  31. And Along Comes ......

  32. Metasearch XML Gateway “MXG”

More Related