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INDEXING LANGUAGES

Indexing languages

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Page 1: Indexing languages

INDEXING LANGUAGES

Page 2: Indexing languages

Much more than a list of index terms that are acceptable to users.

Contains mechanisms for structuring and using those terms.

Page 3: Indexing languages

What are the uses of Indexing Language in the

Indexing Process?

Page 4: Indexing languages

To allow the indexer to represent the subject

matter of the documents in a consistent way.

Page 5: Indexing languages

Example:

COMMUNITY HEALTH SERVICESSN: Various services within the community

directed towards the promotion of the mental and physical well-being of community.

BT: HEALTH SERVICESNT: CHILD HEALTH SERVICES CLINIC VISITS HEALTH EDUCATION MATERNAL CHILD HEALTH SERVICES

Page 6: Indexing languages

To bring the vocabulary used by the searcher into

coincidence with the vocabulary used by the

indexer.

Page 7: Indexing languages

Example:

FEMALE Use WOMEN

FEMALE FERTILITY Use INFERTILITY

Page 8: Indexing languages

To provide means whereby a searcher can

modulate a search strategy in order to

achieve high recall or high precision as varying

circumstances demand.

Page 9: Indexing languages

Example:

If the conceptual analysis resulted on this topic:

GROWTH, POLITICS and the STRATIFICATION of PLACES then the translation of this concept into the language of the system using the subject authority file on Education will be:

GEOGRAPHIC LOCATION, ECOLOGICAL FACTORS, HUMAN GEOGRAPHY, QUALITY OF LIFE, POLITICAL INFLUENCES, THEORIES,& GROWTH PATTERN.

Page 10: Indexing languages

What are the components of the Indexing Language?

Page 11: Indexing languages

Indexing Languages has three components:

Page 12: Indexing languages

VOCABULARY

Page 13: Indexing languages

The vocabulary of the Indexing Languages is

composed of terms loosely called INDEX

TERMS.

Page 14: Indexing languages

2 TYPES OF VOCABULARY

Page 15: Indexing languages

INDEX VOCABULARY

Consists of index terms which are assigned to express the concepts of the author.

Also called DESCRIPTORS.Ex.DEACIDIFICATIONDEAD TITLESDECAYDEPOSITORY COLLECTIONDEPRECIATION

Page 16: Indexing languages

APPROACH VOCABULARY

Consists of terms which are used as lead-in terms to the index terms.

EX.Able studentsUse, Academically GiftedAcademic AdvisementUse, Educational CounselingActivity LearningUse, Experimental Learning

Page 17: Indexing languages

SYNTAX

Page 18: Indexing languages

A complete indexing language includes certain devices which are used to achieve either high recall or high precision in both

indexing and search operations.

Page 19: Indexing languages

Referred to as indexing devices.

Page 20: Indexing languages

2types of indexing devices

Page 21: Indexing languages

RECALL DEVICES:

Page 22: Indexing languages

Indexing languages devices that group terms together into classes of one type or

another so that such devices will allow improvements in

recall in search operation and will make the index consistent in assigning index terms that

represent the subject contents of documents.

Page 23: Indexing languages

Example:

SynonymsDISASTER, Syn: calamity, catastrophe, misadventure,

tragedyNs: Accident, casualty, fatality, misfortune,

rocks.Qs: Boon, fortune, luck

Page 24: Indexing languages

EXAMPLE:

Control of wordTenure Emotional

SecurityUse, JOB TENURE USE, INSECURITY

Page 25: Indexing languages

EXAMPLE:

Hierarchical relationshipsINFANT NUTRITIONSn: nutrition of children from birth to 2

years of ageBt: NutritionNt: Bottle Feeding Breast Feeding

Page 26: Indexing languages

Precision Devices:

Page 27: Indexing languages

I. L. Devices that when used with association with

terms will increase the shades of meaning of the

terms.

Page 28: Indexing languages

Example:

Adjectival headings: FRUIT WINE; OFFICE MANAGEMENT.

Phrase Headings: STUDY, METHOD OF; WOMEN AS AUTHORS

Compound headings: SCIENCE AND RELIGION; BANKS AND BANKING.

Page 29: Indexing languages

What are the types of indexing languages?

Page 30: Indexing languages

Controlled Vocabulary/ARTIFICIAL LANGUAGE

Page 31: Indexing languages

An indexer can only assign to a document terms that appear on the list adopted by the library or information center.

Basically an authority list.

Enables us to use concept indexing.

Page 32: Indexing languages

NATURAL LANGUAGE

Page 33: Indexing languages

If we use terms as they appear in documents without modifications we are using natural language or DERIVATIVE SYSTEM.

Terms are picked out from the text itself.

Page 34: Indexing languages

Example:

HEAT TREATMENT OF ALUMINUM Aluminum heat treatment.

Libraries for children OR children’s libraries

Libraries , Children’s

Page 35: Indexing languages

FREE LANGUAGE

Page 36: Indexing languages

Does not consist of a list of terms distinct from those used to describe concepts in a subject area.

Common in a computer indexing environment.

Page 37: Indexing languages

SA WAKAS

NATAPOS DIN………