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AIM 121 > Chapter 4: The Search Query > Flashcards

Chapter 4: The Search Query Flashcards

1
Q

Boolean logic

A

A method for combining search terms (keywords) using logical operators to limit or expand the numbers of results. This system was originally developed by the mathematician
George Boole in the 1800s. Three logical operators are used in information retrieval: AND, OR, and NOT.

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2
Q

Boolean operator

A

Indicates a relationship between search terms. Using Boolean operators allows the searcher to broaden or narrow the search results. The three most commonly used
Boolean operators are: AND, OR, and NOT.

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3
Q

Concept identification

A

Indicates a relationship between search terms. Using Boolean operators allows the searcher to broaden or narrow the search results. The three most commonlv used
Boolean operators are: AND, OR and NOT.

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4
Q

Controlled vocabulary

A

An authorised list of terms that can be used when indexing a document or an entity or when conducting an information search

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5
Q

Human indexing

A

When human indexers (as opposed to computer algorithms) create representations of documents by allocating keywords to describe the content.

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6
Q

Metadata

A

Metadata are data that describe and give information about other data. Metadata often contain descriptive keywords for a document.

Describes the properties of the document.

Metadata contain descriptive keywords/ concepts about a
document.

Metadata can also be tags.

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7
Q

Natural language representation

A

Content described in words that we use in everyday language

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8
Q

Natural language query

A

A query that uses the same words that the author used in the document to represent the document in a search query.

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9
Q

Query

A

A query is a combination of search terms (keywords) with Boolean operators in a single statement. The searcher must construct a query to carry out a search.

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10
Q

Query construction

A

Constructing a query involves combining search terms (keywords) with Boolean operators in a single statement.

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11
Q

Search engine mathematics

A

These are mathematical symbols used instead of Boolean operators. For example, + is the equivalent of the Boolean operator AND and - is the equivalent of the Boolean
operator NOT

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12
Q

Creating and representing information

A
  1. Mental process
  2. Real world
  3. Computer ready
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13
Q

Mental process

A

An author has an idea research problem or interest

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14
Q

Real world

A 
The author creates a
document (information
object). This can be a blog,
book, an article, a website,
etc.
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15
Q

Computer ready

A 
For people to find this
document, the content must
be represented in a database
as one or both of the
following: full text or
representation of the
document through metadata.
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16
Q

Seeking and retrieving information

A
  1. Mental process
  2. Real world
  3. Computer ready
17
Q

Mental process

A

An information user needs information to a problem or maybe just out of interest

18
Q

Real world

A

The user must formulate a
question (or maybe a
question is already formulated
as an assignment)!

19
Q

Computer ready

A

The question now Has to be
reformulated as a query for
the interface to understand it.

20
Q

Retrieving information

A 
The idea of information retrieval is to
MATCH
Your need (as a user) for information
TO
An author's supply of information.

When we search for information, we are trying to
MATCH
The words in a question
TO
The words an author may have written at some point in time

21
Q

Metadata can be used to represent a document in two ways

A
  1. Natural Language

2. CONTROLLED VOCABULARY

22
Q

Natural language

A

EVERYDAY LANGUAGE.
WORDS THAT ALREADY EXIST IN THE
DOCUMENT.

23
Q

Controlled vocabulary

A

ALTERNATIVE WORDS / SYNONYMS
BROADER AND LESS SPECIFIC THAN
NATURAL LANGUAGE.

24
Q

DETERMINING SEARCH KEYWORDS

A

Identify topics and concepts

Identify singular and plural forms

Identify proper nouns

Identify time periods

Identify required formats

25
Q

BOOLEAN OPERATORS

A

AND

OR

NOT

(Must be capitalised)

26
Q

AND

A 
The function of the AND
operator is to COMBINE search
terms in such a way that all the
terms combined by AND in the
query must appear in the
document for it to be retrieved.
27
Q

OR

A 
The OR operator combines
terms in such a way that
any of the terms combined
by OR can be present in the
document for it to be
retrieved.
28
Q

NOT

A 
The third Boolean operator
is NOT, or the exclusion
operator.
This is used to exclude
certain search terms from
your query.

AIM 121 (5 decks)

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