ray denenberg ralph levan workshop 20 march 25, 2006; washington metasearch - the niso initiative
TRANSCRIPT
Ray Ray DenenbergDenenberg
Ralph LeVanRalph LeVan
Workshop 20Workshop 20
March 25, 2006; WashingtonMarch 25, 2006; Washington
Metasearch - the NISO Initiative
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
NISO: “Why Bother?”
Because most patrons do not care where information is or who packaged it.
Because Google cannot do it all.
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.
ClientClientMeta-Meta-
searchersearcher
DatabaseDatabase
DatabaseDatabase
DatabaseDatabase
Metasearch Topological Model
Recall Goals:
metasearch service 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.
Entities
Topological
ClientMetasearcher
Database
NISO Defined:
LibraryMetasearch
ProviderContent
Provider
ClientClientMeta-Meta-
searchersearcher DatabaseDatabase
Service provider
ContentproviderLibrary
offer more effective and responsive services deliver enhanced content;
protect intellectual property
deliver “distinguished”
services
ClientClientMeta-Meta-
searchersearcher
DatabaseDatabase
DatabaseDatabase
DatabaseDatabaseProtocolProtocolProtocolProtocol
Protocol Model
ClientClientMeta-Meta-
searchersearcher
DatabaseDatabase
DatabaseDatabase
DatabaseDatabaseProtocolProtocolProtocolProtocol
Metasearch Protocol Model
Meta-Meta-searchersearcher
DatabaseDatabase
DatabaseDatabase
DatabaseDatabaseProtocolProtocol
Metasearch Protocol
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.
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.
Potential Authentication Technologies.
Proprietary APIsNCIP. SIP2.LDAPShibbolethKerberosAthens (UK) .PAPITequila
Non-authenticated identificationIP recognitionProxy ServersReferring URLEmbedded data in URLVendor provided JavascriptCookiesShouting
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.
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
TG 3: Search/Retrieve
Citation level data elements
Investigate Result Set and Record level metadata
Review SRW/SRU and recommend modifications
Result Set metadataBranding ClusteringDatabase nameDiagnostic messagesList of termsPostings, count by termRecord countResources used Result statusSort order
Record Level metadataApplication URICharacter SetConstraintsCost InfoDates (creation, last modified, reviewed)LanguagePosition in result setProcessing instructionsRankScoreSize