Week 5

Search Strategies

 

Do u know what is the boolean operators?

Boolean operators is the combining terms such as AND, OR, and NOT used in building a search statement or in putting several sets together.

— Boolean searching allows you to group words together in an electronic database or environment such as the World Wide Web to receive a number of different types of results. Depending how you group these word, you will receive different results.

 

 

Boolean Searching

* Boolean operators are words that connect a search that may add or subtract a concept to your search.
* Boolean searching is the most common and basic search strategy.
* It allows you to expand (return more information or matches) a search by using OR or limit (return less information) a search by using the word AND.
* Most of the search engines on the World Wide Web allow you to use some form of boolean searching.
For Example :
AND,OR and NOT 

 

 

 

For example:

* By placing an OR between words it expands the search.
* When you use OR you receive more information because the search engine is looking for two words rather than just one word.

Boolean – ‘And’ queries

* Boolean searching allows you to group words together in different combinations to produce a variety of results.

* The ‘AND’ queries are probably the most used and many search engines defaults to (meaning it automatically using this searching tool) that as a search strategy. It is the simplest to understand.

* The query 'beach and California' will find the connection of all the documents containing the words 'beach', and 'California' .

 

 

 

 

 

 

 

Boolean-'OR' queries

* When doing a boolean search with the operator (thats what they call these words that define the search strategies) 'or' will broaden the search or make the search larger.\
* The query 'beach or California' will find documents that have either word. The document will have either the word beach OR the word California.

 

 

 

Boolean-'Not' operator