Zusammenfassung der Ressource
Search Engine
- Definition
- programs that
search documents for specified
keywords and returns a list of the
documents where the keywords were
found.
- A search engine is really a general
class of programs, however, the term is
often used to specifically describe
systems like Google, Bing and Yahoo!
Search that enable users to search for
documents on the World Wide Web.
- Types
- Google
- 12 Advanced Google
search types
- Explicit Phrase
- Exclude Words
- Site-Specific Serch
- Similar Words and Synonyms
- Specific Document Types
- This OR Rhat
- PHone Listing
- Area Code Lookup
- Numeric Ranges
- Stock (Ticker Symbol
- Calculator
- Word Definition
- Yahoo serach
- Altavista
- Go.com
- Advantages
- Enable to quick search to vast among
of information from one serach box
- search on a specific type or piece of
information is possible
- Different types of search engines enable
to look for specific types of documents
- Disadvantages
- Create information overload
- Semantic search is not possible
- Privacy and security is of concern
- Makes everyone to depent
- Beginers users become
discouraged and frustrated.