An Overview of Search engine Technology

1
An Overview of Search Engine Technology
Project Members
Sean Garvin
Colm Larkin
Ciara Millar
Gerard Doyle
2
Introduction

• Colm Larkin Introduction to project and the
  navigation interface.
• Ciara Millar How do Search Engines Work?
• Sean Garvin How Search Engines rank pages
• Gerard Doyle Features of Search Engines

3
The Navigation Interface
4
How Search Engines Work
TWO MODELS Search Engines Directories
5
Three Major Parts

• Spider
• Program that creates the index
• Search Engine software

6
Ranking Of Web Pages

• Method Of Searching
• Reliability Of Methods
• What Engines use Which Methods

7
Methods of Searching

• Searching By Keyword
• META tags
• Weighting WWW Pages

8
Features Page

• The features page covers the following search
  engines
• AltaVista Excite
  AOL Netfind
• Lycos Northenlight
  Go TO
• WebCrawler Ask Jeeves
  Inktomi
• Infoseek Looksmart
  Search
• HotBot Direct Hit
  Netscape
• Excite News Tracker Yahoo

9
Whats on Features Page

• The features page gives a summary of the aspects
  of different Engines
• It Highlights Interesting Features of the
  different engines
• Details on how each is compiled
• Major Engines are in detail while only a quick
  reference to some of the smaller ones.
• It highlights the advanced Search options of the
  larger Engines
• It analysis the accuracy of the larger engines
  rankings on their results page
• In the larger sections there is details on how
  easy it is to use,read and get help if you are
  stuck

10
Features Chart

• The features chart provides a detailed analysis
  of eight leading search engines.They are analyzed
  in three sections.
• The Engines analyzed are AltaVista,Excite,HotBot,I
  nfoseek,Lycos,Northern Light and Web Crawler.
• The first section is Crawling---Factors that
  effect if and when a page is indexed.
• The second section is Ranking---Factors that
  influence how a page is indexed.
• The third section is Display---Factors that
  affect how a page is listed.

11
Search Engine Features Chart-1
12
Features Chart -2
13
Features Chart-3