IDIA630.185 Information Architecture - PowerPoint PPT Presentation

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IDIA630.185 Information Architecture

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MSN Search has not increased market share. Planned launch of Windows Live Search. New interface ... Windows Live. An uphill battle is in progress. How does ... – PowerPoint PPT presentation

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Title: IDIA630.185 Information Architecture


1
Search Systems
  • IDIA630.185 Information Architecture
  • Shannon R. Tucker
  • 02/12/2007

2
Search Engine 2006
  • a year in review

3
Search Close Out 2006
  • Google
  • Buys stake in AOL
  • Launches Google Co-op
  • (https//www.google.com/webmasters/tools/docs/en/a
    bout.html)
  • Partners with My Space
  • Acquired YouTube
  • AOL
  • Offers free content
  • Ask Jeeves
  • Retires
  • Planned rebranding as ask.com

4
Search Close Out 2006
  • MSN
  • MSN Search has not increased market share
  • Planned launch of Windows Live Search
  • New interface
  • Revised algorithm
  • Yahoo
  • New homepage design is permanent
  • Old Design
  • New Design
  • Big Three Agree on Site Maps
  • More information http//Sitemaps.org

5
Search Predictions 2007
  • What lies ahead

6
The Players
  • Google
  • Pushing for market shares in Europe and Asia
  • Yahoo
  • May increase market share as a result of
    restructuring
  • Ask
  • Strong following may increase if they maintain
    focus
  • Windows Live
  • An uphill battle is in progress. How does
    integration into Vista help/hurt?
  • Baidu
  • Chinas leading Search Engine
  • http//baidu.com

7
Marketing Strategies for 2007
  • Link Building
  • Search Engine Optimization
  • Eradicating SPAM
  • Mobile Search

8
Attention to the Little Details
  • Web Site Analytics
  • Competitor Analysis
  • Good Design
  • Professional Copy Writing

9
Search
  • Sometimes you feel like a nut,
  • Sometimes you dont

10
Search in a Nutshell
  • Searching is an essential function with few
    exceptions
  • Small sites
  • Intranets
  • Users expect search

11
Anatomy of a Search System
http//semanticstudios.com/publications/semantics/
000004.php
12
Search Algorithms
  • Retrieval Algorithms are complex and numerous
  • Pattern Matching
  • Recall and Precision
  • Inversely related
  • Recall relevant documents retrieved/
    relevant documents in a collection
  • Inclusion of automatic stemming may help improve
    recall
  • Precision relevant documents retrieved /
    total documents in collection

13
Collaborative Filtering
  • Cited By
  • Web of Science
  • Active Bibliography (related documents)
  • PubMed
  • Similar documents based on text
  • ACM Digital Library
  • Related documents from co-citation
  • WebMD

14
Query Builders
  • Tools to improve query performance
  • Spell-checkers
  • Phonic Tools
  • Soundex
  • Stemming Tools
  • Natural Language Processing Tools
  • http//www.ask.com
  • Controlled Vocabularies and Thesauri

15
Content Component Overload
  • Understanding user needs will help define
    essential display components
  • What components are important when searching for
  • Information Architecture 3rd Edition
  • USMAI Catalog
  • Phone Number
  • http//www.superpages.com

16
Sorting and Ranking
  • Alphabetical
  • Chronological
  • Relevance
  • Popularity
  • User/Expert Ratings
  • Pay-for-placement

17
Utility of Search Results
  • Saving Results for Later Use
  • Full / Subset Search Results
  • Individual Results
  • Hard copies

18
Presenting Results
19
KISS
  • Keep your search tools simple and consistent
  • Lack of consistency user confusion
  • Say No to Advanced Search Tools
  • An advanced search shouldnt be your only search
  • Boolean expressions are hard for many users to
    understand
  • Few users actually use them
  • Know your users, provide features that will help
    not hinder them

20
Supporting Revision
  • Repeat Search in results page
  • Explain where results come from
  • Explain what the user did
  • Integrate Searching and Browsing
  • Amazon provides an excellent example of
    integration
  • What are others?
  • Provide a means to revise the search
  • Search tips, how to improve results

21
The good the bad and the ugly
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