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week 5..

Friday 30 November 2012 | 04:09 | 0 comments

Now I will tell you about Brainstorming for search terms

Keywords usually give you more resources (a broader search).you will know when should you use keywords, subject headings, phrases, single words after you understood about this knowledge. Firstly you have started to formulate your research question, it can be useful to brainstorm keywords that are synonymous with or related to the major concepts of your topic, as well as narrower and broader terms. Than you try to create a hierarchy of concepts for your research the topic. It will give you more flexibility when searching different types of databases, catalogs, etc.

Examples of subject headings are:

Library Subject Headings:

Used as the "official vocabulary" of the Libraries catalog as well as many other library catalogs.

Science Subject Headings:

Used to describe the content of documents in the Library at AIU as well as in catalogs of other medical and health sciences libraries.

Thesaurus of Psychological Index Terms:

This controlled vocabulary is used by American Psychological Association indexers to describe the content of documents in the database. These subject headings are sometimes called index terms or descriptors. The library has copies of the printed volume and the thesaurus is also available online, searchable from within the database.

However in Boolean Searching we will knew about the Boolean operators.Boolean operators is named for George Boole, 1815-1864, a mathematician.It is combining terms such as AND, OR, and NOT used in building a search statement or in putting several sets together.

We will know when we see the example, like this

Overmore we should know another boolean because this lesson have Boolean Operator or Keywords.

This boolean we can research by allowing in 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 operators also are words that connect a search that may add or subtract a concept to your search. Boolean search 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. Example: AND, OR and NOT

For another example:

*By using an AND between words you limit the search.
*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.

The example of OR,AND and NOT:

OLD / NEW