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INFORMATION STORAGE and RETRIEVAL : ISR PowerPoint PPT Presentation


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INFORMATION STORAGE and RETRIEVAL : ISR

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Information storage and retrieval isr

INFORMATION STORAGE and RETRIEVAL : ISR


Review

review


Search engines

3

(Search Engines)

1. (Crawling)

2. (Indexing)

3. (Retrieval)


Search engines1

1. Free text Search Engines

2. Index or Directory Search Engines

3. Multi or Meta Search Engines

4. Natural language Search Engines

5. Resource or Site Specific Search Engines

Search Engines


Search engines2

1. (Currency)

2.

(Search Interface)

3. (Search Features)

4. (Results List

Display Features)

5. (Other Features of Note)

Search Engines


Information storage and retrieval isr


Information storage and retrieval isr

1. (Source Database)

(Full Text)


Information storage and retrieval isr

1. (Source Database)

1.1 (Factual Database)

1.2 (Full-Text Database)

1.3 (Numeric Database)


Information storage and retrieval isr

2. (Reference Database)

(full-text) (Bibliographic Database)


Information storage and retrieval isr

?


Information storage and retrieval isr


Information storage and retrieval isr

- URL

-

- (User Interface:UI)


Information storage and retrieval isr


Information storage and retrieval isr

(Interoperability) (Hardware) (Application Software) (Database Management System:DBMS )


Information storage and retrieval isr

1. (Request)

2. (Response)


Information storage and retrieval isr

A

B


Information storage and retrieval isr

A

B


Information storage and retrieval isr

A

B


Information storage and retrieval isr

A

B


Interoperability

2

1. Meta search(Federated search)

2. Harvesting and Indexing

* 2 (Protocol)

(Interoperability)


Meta search federated search

Meta search(Federated search)


Meta search federated search1

Meta search(Federated search)


Meta search federated search2

Meta search(Federated search)


Meta search federated search3

-

-

-

Meta search(Federated search)


Meta search federated search4

Meta Search Meta Search Z39.50 SRU(Search/Retrieve via URL)

Meta search(Federated search)


Z39 50

Z39.50 ISO23950 ANSI 39.50-1995, Information Retrieval Application Service Definition and Protocol Specification

http://www.loc.gov/z39.50/agency/

Z39.50


Z39 501

Z39.50 Bibliographical Machine Readable Cataloging Record (MARC)

Z39.50


Z39 502

Z39.50

Z39.50


Z39 503

Z39.50


Z39 504

http://www.loc.gov/z3950/

Z39.50


Z39 505

http://iic.oie.go.th:8080/gw/basic/indexeng.jsp

Z39.50


Sru search retrieve via url

SRU URL HTTP GET HTTP POST (SRU via POST) HTTP GET XML

SRU(Search/Retrieve via URL)


Http get

HTTP (Hyper Text Transfer Protocol) GET URL

HTTP GET


Http post

GET

HTTP POST


Information storage and retrieval isr

Request

http://z3950.loc.gov:7090/voyager?version=1.1&operation=searchRetrieve &query=dinosaur&maximumRecords=1&recordSchema=dc

SRU

Response

<record><recordSchema>info:srw/schema/1/dc-v1.1</recordSchema><recordPacking>xml</recordPacking><recordData><srw_dc:dc xmlns:srw_dc="info:srw/schema/1/dc-v1.1"><dc:title>This is a Sample Record</dc:title></srw_dc:dc></recordData><recordPosition>1</recordPosition><extraRecordData><rel:score xmlns:rel="info:srw/extensions/2/rel-1.0">0.965</rel:rank> </extraRecordData></record>


Harvesting and indexing

(Collect) , ,

Harvesting and Indexing


Harvesting and indexing1

Harvesting and Indexing


Harvesting and indexing2

-

-

Harvesting and Indexing


Harvesting and indexing3

-

-

Harvesting and Indexing


Harvesting and indexing4

Harvesting and Indexing OAI-PMH (Open Archives Iniative Protocol for Metadata Harvesting)

Harvesting and Indexing


Oai pmh open archives iniative protocol for metadata harvesting

Open Archive Initiative (Interoperability) (Digital Library) (Digital Repository) (Simple Protocol) Protocol for Metadata Harvesting (OAI-PMH)

OAI-PMH (Open Archives Iniative Protocol for Metadata Harvesting)


Oai pmh open archives iniative protocol for metadata harvesting1

2

1. (Data Provider)

(metadata) (resource)

OAI-PMH (Open Archives Iniative Protocol for Metadata Harvesting)


Oai pmh open archives iniative protocol for metadata harvesting2

2. (Service Provider)

(Havest) (searching), (Indexing)

OAI-PMH (Open Archives Iniative Protocol for Metadata Harvesting)


Oai pmh open archives iniative protocol for metadata harvesting3

OAI-PMH (Open Archives Iniative Protocol for Metadata Harvesting)


Oai pmh open archives iniative protocol for metadata harvesting4

2. (Service Provider)

(Havest) (searching), (Indexing)

OAI-PMH (Open Archives Iniative Protocol for Metadata Harvesting)


Oai pmh open archives iniative protocol for metadata harvesting5

OAI PMH ( Verbs)(Service Provider)(Data Provider) 6

OAI-PMH (Open Archives Iniative Protocol for Metadata Harvesting)


Oai pmh open archives iniative protocol for metadata harvesting6

OAI-PMH (Open Archives Iniative Protocol for Metadata Harvesting)


Oai pmh open archives iniative protocol for metadata harvesting7

1. GetRecord (record) Dublin Core

2. Identify

3. ListIdentifiers Header OAI

OAI-PMH (Open Archives Iniative Protocol for Metadata Harvesting)


Oai pmh open archives iniative protocol for metadata harvesting8

4. ListMetadataFormats

5. ListRecords

6. ListSets

OAI-PMH (Open Archives Iniative Protocol for Metadata Harvesting)


Oai pmh

OAI-PMH


Oai pmh1

OAI-PMH


Oai pmh2

OAI-PMH


Information storage and retrieval isr

http://ir.ub.rug.nl/oai/?verb=Identify


Oai pmh3

(low barrier)

OAI-PMH HTTP GET HTTP POST XML OAI

OAI-PMH Dublin Core

OAI-PMH


Oai pmh4

http://www.openarchives.org/OAI/openarchivesprotocol.html

Service Provider

http://www.openarchives.org/service/listproviders.html

Data Provider

http://www.openarchives.org/Register/BrowseSites

OAI-PMH


Information storage and retrieval isr

?

Harvesting and Indexing

Meta search


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