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Search Engines

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Chidanand Byahatti
Chidanand Byahatti

Search engines and digital libraries both provide search capabilities but work differently: - Search engines use crawlers to index the web and return keyword search results, while digital libraries provide access to structured collections of digitized materials from libraries and archives. - Both have limitations in coverage, and searching must be done individually in different databases within digital libraries rather than via federated search. - It is important for users to understand how each system works, what is included in their indexes, and how results may be influenced by business models, sponsorship, or other factors to get the most relevant information for their needs.

TechnologieDesign
1 von 42
part 1: search engines © Chidanand Byahatti
dictionary definitions ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],© Chidanand Byahatti
about definition of search engines ,[object Object],[object Object],[object Object],[object Object],© Chidanand Byahatti
use of search engines … among others © Chidanand Byahatti
How Search Engines Work (Sherman 2003) © Chidanand Byahatti Your Browser The Web URL1 URL2 URL3 URL4 Crawler Indexer Search Engine Database Eggs? Eggs. Eggs - 90% Eggo - 81% Ego- 40% Huh? - 10% All About Eggs by S. I. Am
how do search engines work? elaboration ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],© Chidanand Byahatti
elaboration … ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],© Chidanand Byahatti
elaboration (cont.) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],© Chidanand Byahatti
elaboration… similarities, differences ,[object Object],[object Object],[object Object],[object Object],© Chidanand Byahatti
case of ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],© Chidanand Byahatti
coverage differences ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],© Chidanand Byahatti
searching differences ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],© Chidanand Byahatti
business model differences ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],© Chidanand Byahatti
sponsorship differences ,[object Object],[object Object],[object Object],[object Object],[object Object],© Chidanand Byahatti
limitations ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],© Chidanand Byahatti
spamming a search engine ,[object Object],[object Object],[object Object],[object Object],© Chidanand Byahatti
meta search engines ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],© Chidanand Byahatti
how to find a search engine? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],© Chidanand Byahatti
sample of meta engines - with organized results ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],© Chidanand Byahatti
meta search engines (cont.) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],© Chidanand Byahatti
domain engines & catalogs ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],© Chidanand Byahatti
domain engines … sample ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],© Chidanand Byahatti
domain engines … sample ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],© Chidanand Byahatti
science, scholarship engines …sample free access ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],© Chidanand Byahatti
science, scholarship engines …sample commercial access ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],© Chidanand Byahatti
where to find out? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],© Chidanand Byahatti
where? …. ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],© Chidanand Byahatti
art of searching search engines © Chidanand Byahatti
part 2: digital libraries © Chidanand Byahatti
definition ,[object Object],[object Object],[object Object]
a bit of context ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
libraries & digital resources ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
emphasis here ,[object Object],[object Object],[object Object],[object Object],[object Object]
sample ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
sample … ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Rutgers libraries – digital components ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
some critical issues for searching ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
where to find out? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
where? … ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
in conclusion ,[object Object],[object Object],[object Object],[object Object],[object Object]
art of searching digital libraries
and rewards …

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Search Engines

  • 1. part 1: search engines © Chidanand Byahatti
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  • 4. use of search engines … among others © Chidanand Byahatti
  • 5. How Search Engines Work (Sherman 2003) © Chidanand Byahatti Your Browser The Web URL1 URL2 URL3 URL4 Crawler Indexer Search Engine Database Eggs? Eggs. Eggs - 90% Eggo - 81% Ego- 40% Huh? - 10% All About Eggs by S. I. Am
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  • 28. art of searching search engines © Chidanand Byahatti
  • 29. part 2: digital libraries © Chidanand Byahatti
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  • 41. art of searching digital libraries

Hinweis der Redaktion

  1. © Tefko Saracevic Principles of Searching