Search Engine Optimisation
Optimisation
of google search engine
Introduction
Search
engine optimisation is the way of modifying the existing search engine to
obtain the best. In this way the existing google search engine is currently
getting modified in different ways such as voice input and output, touch sensation etc., but the way of search
done by google is never modified.
Search engines work in three different phases
1.
Web Crawling
Web search engine stores information
about webpages which they retrieve from html itself. These
pages are retrieved by web
crawlers most
of time we call as Spider. Web crawlers crawls site and follows each indexed
link of every site. You can restrict these web crawlers from robot.txt which is
made for these web crawlers. These crawlers then extract all the
information about web page from title , meta tags, headings & content and
stores in database.
When user types a
search query then first of all search engines check results in database file if
they have already incurred query ,Google uses cache mechanism for that where
they store result of search queries to minimize time. Increased
search relevance makes these cached pages very useful, even beyond the fact
that they may contain data that may no longer be available elsewhere.
2. Indexing
When a user enters a
query into a search engine (typically by using key words), the engine examines
its index and provides a listing of best-matching web pages according to its
criteria, usually with a short summary containing the document’s title and
sometimes parts of the text. The index is built from the information stored
with the data and the method by which the information is indexed.
Unfortunately, there is no one search engine that allows you to search
documents by date. Most search engines support the use of the Boolean operators
AND, OR and NOT to further specify the search query. Boolean operators are for
literal searches that allow the user to refine and extend the terms of the
search. The engine looks for the words or phrases exactly as entered. Some
search engines provide an advanced feature called proximity search which allows
users to define the distance between keywords. There is also concept-based
searching where the research involves using statistical analysis on pages
containing the words or phrases you search for. As well, natural language
queries allow the user to type a question in the same form one would ask it to
a human. A site like this would be ask.com.
3.
Searching
The usefulness of a
search engine depends on the relevance of the result set it gives back. While
there may be millions of web pages that include a particular word or phrase,
some pages may be more relevant, popular, or authoritative than others. Most
search engines employ methods to rank the results to provide the “best” results
first. How a search engine decides which pages are the best matches, and what
order the results should be
shown in, varies widely from one engine to another. The methods also change
over time as Internet usage changes and new techniques evolve. There are two
main types of search engine that have evolved: one is a system of predefined
and hierarchically ordered keywords that humans have programmed extensively.
The other is a system that generates an “inverted index” by analysing texts it
locates. This second form relies much more heavily on the computer itself to do
the bulk of the work.
This is the process by which post of the search engines work
now a days though we see many changes in algorithm and searching mechanism, every
search engine is focused on relevancy and better load time.
Search type followed by google search
engine:
The search type followed by the
google search engine is search by word
type.
It means
Ø When any sentence is entered is
google search
i.
It
will separate each word entered in that sentence
ii.
It
matches each word in a global database
iii.
It
obtains the different kinds of result as web links
iv.
Then
it displays the web links as an output
Let us make
a search in google search engine
·
Enter
the query in google search
What is the population
of china?
The google will take the query input and it will separate
each and every word and it finds the key words in the sentence such as population, china and then it will
search for the record globally. Then it matches some on the entities with the
input query.
The predefined attributes of the google database are some of
the websites web links and others wed related sources
Now it will display the
web links that matches with the user query.
All these actions are taken place by means of internet.
The Output obtained by the google search
v Now you must have to go with the
required web link and then you can obtain your answer for your query
There is any
other way to get the answer as the result of the search.
Yes, for this the Search by dictionary
method must have to be implemented in the google search engine.
How is Search by dictionary type
works?
It is a step by step process and the
execution of search is narrated as
follows
Schematic representation of
search by dictionary type
Dictionary
implementation process:
Query:
Query means question. If a user has
any question, in order to find the solution for his/her question, the query has
been given as an input into the search engine. The user query can be in any
form such as voice, video, text…
Dictionary:
Dictionary is a thing which helps us
to find the meaning the meaning for each and every thing across the world. The
Dictionary which is going to be implemented on the google search must not
contain only the meaning of each world, it must be capable of
·
Finding
the meaning for a sentence
·
Finding
idioms and phrases, verbs, nouns in a sentence
·
Tenses
must be properly understood
·
Translating
the language into British or American English
·
Understanding
the abbreviation
Now the
query given by the user is being converted into appropriate meaning. The
meaning generated by the dictionary is being used in the future operation done
by search engine.
Search by Meaning:
Now the query has been converted into
a meaning in a machine understandable format. The search operation done in the
google database has been made through the meaning generated by dictionary.
There is no change in the search
operation made by google search engine. Instead of performing the search with
the word we are just making to perform searching with the meaning generated by
the dictionary. This is mode of searching operation which gets executed during
search in the google database.
Searching…
Now
output generated by google is based on the meaning. Therefore the output that
we are expecting will come in the first page itself and it may also be able to
come as a first suggestion.
Will the dictionary system work?
Yes,
definitely we are not changing the search type of google search engine we are
just modifying the searching algorithm of the google search engine. Instead of
running the query the query directly into google database we are just making it
pass through the dictionary and the output of the dictionary is made to pass
through the google database.
Advantage:
Ø Required result can be obtained accurately
Ø Reduce the multiple search made by user
Ø View of next pages by the user can be avoided
Disadvantage:
Ø Response time may get increased
Ø Construction cost.
Conclusion:
At present google is our guide which direct the way to
obtain our answer but we are transforming google to be as our friend which
takes us to the result.
Thank you
