Topic name: website and metadata indexing

Susheel Kumar Chourasiya

MS [LIS] 2016-18

DOCUMENTATION RESEARCH AND TRAINING CENTRE

INDIAN STATISTICAL INSTITUTE, BANGALORE CENTRE

PIN: 560059

Website and metadata indexing

● Introduction and definition● Metadata indexing ● Dublin core elements ● Website indexing process● Purpose of website and metadata indexing

Introduction

● Despite the proliferation of automated search engines, there are a number of ways in which human indexers are needed to enhance access to information on the World Wide Web.

● Website indexes can be similar in style to back of book indexes or can be designed as hierarchical pages, which both link directly to the information required. They complement other navigational tools such as site maps and search engines.

Cont...

● Metadata indexers improve the precision of access to web documents through search engines by the use of standard elements similar to those used in database indexes and library catalogues.

Metadata indexing

● Metadata describes other data. It provides information about a certain item's content.

● For example, an image may include metadata that describes how large the picture is, the color depth, the image resolution, when the image was created, and other data.

● A text document's metadata may contain information about how long the document is, who the author is, when the document was written, and a short summary of the document.

Dublin core elements

● The 15 metadata elements used by Dublin Core are:● 1.title (the name given the resource),● 2. creator (the person or organization responsible for the content)● ,3. subject (the topic covered),● 4. description (a textual outline of the content),● 5. publisher (those responsible for making the resource available)● ,6. contributor (those who added to the content), ● 7.date (when the resource was made available),● 8. type (a category for the content),

Cont...

● 8. type (a category for the content),● 9. format (how the resource is presented), 10.identifier

(numerical identifier for the content such as a URL),● 11. source (where the content originally derived from),● 12. language (in what language the content is written),● 13. relation (how the content relates to other resources, for

instance, if it is a chapter in a book),● 14. coverage (where the resource is physically located), and● 15. rights (a link to a copyright notice).

Website indexing

Purpose of website and metadata indexing

● Encourages efficient retrieval of topics● Illuminates the author's message with

succinctness● Groups concepts that are scattered throughout

the text● Can function as a decisive factor in book

selection or purchase

Conclusion

Performance improves significantly when indexing is used for query processing.

Performance of the indexes depends on the type of the type of enquiry.