Search engine topic is detailed studied with accurate information on 25 sept 2018 by Praveen Verma. All information is collected from popular websites (eg. Wikipedia,Alexa, tutorialpoints etc. )

1. Department of Computer Science &
Engineering
Seminar Report
on
Search Engine
Submitted By:-
Praveen
Roll no:- 180010120004
MCA 1st Year
Submitted To:-
Prof. Dharmender
Dept. Of CSE
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3.  Search Engine
 Importance of Search Engine
 Types of Search Engine
 Popular Search Engines
 Top 10 Search Engines
 How to Use Search Engine
 Market Share of Search Engines
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4. The purpose of a search engine is to extract
requested information from the huge
database of resources available on the
internet.
Search engine become an important day to
day tool for finding the required information
without knowing where exactly it is stored.
Internet uses increases in recent days with
the easy to use search engine like google
,yahoo ,bing etc.
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5.  Search engines are backbone of the world
wide web.
 It gives billion of response to billion of
queries every day.
 It would be easy to search for information that
is specifically needed at anytime.
 Search engine filters the billion of webpages
and provide the best information regarding
any query with in a couple of seconds.
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6. 1. Crawler Based
Search Engines
2. Human Powered
Directories
3. Hybrid Search
Engines
4. Special Types of
Search Engines
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7.  Search engine crawl whole web to fetch the
webpages available. A piece of software called
crawler or bot or spider, performs crawling of
entire web.
 Indexing is a processing of identifying words and
expressions that best describe the page. The
identified words are referred as keywords.
 Search engine compare search string in search
request with indexed pages from database. If
more than one page contains same string then it
starts calculating the relevancy using suitable
algorithm.
 Last step activity is retrieving the result and
display it simply in browser in an order.
1. Crawler Based Search Engines
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8. 2. Human Powered Directories
 Human powered directories also referred as open
directory system depends on human based
activities for listings.
 Site owner submits a short description of site to
the directory along with category it is to be listed.
 Submitted site is then manually reviewed and
added in appropriate category or rejected for
listing.
 Keywords entered in search box will be matched
with description of the sites.
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9. 3. Hybrid Search Engines
Hybrid search engine use both crawler based
and manual indexing for listing sites in search
results.
Most of the crawler based search engine like
Google basically uses crawlers as a primary
mechanism and human powered directories as
secondary mechanism.
Today hybrid types are becoming more and
more crawler based search engines, but still
there are manual filtering of search result
happens to remove copied and spammy sites.
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10.  Some of the search engines like Dogpile collects meta
information of the pages from other search engine and
directories to display in the search results.
 Semantic search engines like Swoogle provide accurate
search results on specific area by understanding the
contextual meaning of the search queries.
 Search engine have different types of bots for
exclusively displaying images ,videos ,news, products
and local listings. For example, Google News page can
be used to search only news from different newspapers.
4. Special Types of Search Engines
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11. Google Search , also referred to as Google Web
Search or simply Google, is a web search engine
developed by Google LLC. It is the most used
search engine on the World Wide Web, handling
more than three billion searches each day.
Date launched: 15 Sept 1997
Users: 4.5+ billion monthly active users
Type of site: Web Search Engine
Available in: 149 languages
Owner: Google
Written in: Python, C, C++
1. GOOGLE
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12. 2. BING
Bing is a web search engine owned and operated by
Microsoft. The service has its origins in Microsoft’s
pervious search engines: MSN Search, Windows Live
Search and later Live Search. Bing provides a variety
of search services, including web, video, image and
map search products.
Date Launched: June 1, 2009; 9 years ago
Users: 1,227 million monthly active users
Type of site: Search Engine
Available in: 40 languages
Owner: Microsoft
Written in: ASP.NET
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13. Yahoo! Search is a web search engine owned by Yahoo,
headquartered in Sunnyvale, California. As of August
2018 it is the third largest search engine in the world by
the query volume at 2.46% after its competitors Google at
90.91% and Bing at 3.18%.
Date Launched: March 2, 1995; 23 years ago
Users: 1 million monthly active users
Type of site: Web Search Engine
Available in: 40 languages
Owner: Yahoo
Written in: PHP
3. YAHOO!
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14. Sr. no. Search
Engine
Compan
y
Launch
ed
Alexa Rank
Global |
India
Advert
iseme
nt
1. Google Google
Inc
1997 1 1 Yes
2. Bing Microsoft 2009 45 76 Yes
3. Yahoo Yahoo! 1995 6 6 Yes
4. Ask.com IAC 1996 130 80 Yes
5. Aol.com Verizon 1983 310 _ Yes
6. Baidu Baidu 2000 4 _ Yes
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15. Sr.
No.
Feature Description Example
1. Exact Phrase Use quote marks around
phrase or name to search exact
word in exact order
“GJU S&T”
2. Exclude Terms If exact phrase doesn’t get you
what you need then exclude
words using minus
Indian PM –
Modi
3. File Types Search for specific file type (
like pptx, pdf, xlsx, txt, docx etc
)
filetype:pptx
Android
5. Search within
Site
You can search using Google
instead by using site or domain
limiter.
Site:theguardian.
com
6. Power of
Asterisk
The asterisk works as a wild
card within searches. It can be
used in place of a missing word
or part of word.
Architect*
7. Searching b/w
two values
Searching for something with a
qualifier b/w two ranges is a
good way.
Indian PM
between 2000..
2010
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16. Google
90.91%
Bing
3.18%
Yahoo
2.46%
Baidu
1.37%
Pie Chart:-
Table Chart:-
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17. Google
97.22%
Bing
1.85%
Yahoo
0.85% DuckDuckGo
0.05%
Pie Chart:-
Table Chart:-
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