Beyond by yurtgc548


									Beyond   Google

     "I welcome change but shudder though transition."
                                     Association of Research Libraries
WWW Overview

   Internet is a self-publishing medium

   It is not a library of evaluated publications selected by

   It contains everything: excellent; biased; misinformed;
    false; opinions; personal; etc

   Everything, everything must be analysed and evaluated

               Not everything is on the Web!!!
WWW Overview

   Many good search tools

   Few are used routinely               ?

   Most people search the Web with some success

   Research shows that users think highly of their
    searching skills

WWW Overview


   We know we search the Web
    and find useful information

             …but, let’s do it better!

Web Searching is a Process
   Understand your information need

   Identify search tool features that support your need

   Select search tools that offer these features

   Build a search statement: browse directories / search

   Navigate & evaluate results

   Have a timer; after 15 minutes, re-evaluate your strategy

Useful Search Strategy?
   Know what you’re looking for …..a phone number? ……an
    expert?......product information?...... ……authoritative articles?......opinions?

   Write down your purpose in one sentence

   Brainstorm keywords and topics

   Use at least 5 keywords, more is better

   “phrase searching” is an excellent strategy

   Put the most important words first

   Vary the word forms (day / days / daylight / daytime…etc)            (Google
    does this automatically)

   Refine your search online

   Evaluate offline
Remember to:

Watch for alternative phrasing (synonyms)
        retirement / superannuation
        revenue / turnover

     Difficulty identifying US v British words?
          Eurotexte

     Another tool for English language slang:
          Probert Encyclopaedia

WWW Overview
   Always use more than one search engine because they:

       search different databases

       have different methods of collection

       have little overlap among search engine indexes

       relevance ranking differs

         ….try or or searchability or

WWW Overview
   Search for sources, not just information
           Find out what organizations are concerned with the topic

           Assume the key information will be buried in the invisible web

           Add the term ‘database’ to your search

   What do you already know?

   What do you want to know?
           Look at the following:

                 Google  Accumo  Ask  Mooter

   Be alert to new tools or tools in beta
                 A9, Google Alert, Clusty, Ansearch, Exalead
Three basic types of tools:

    Search engines

    Subject Directories

    The "invisible" Web, information and multimedia that
     is stored in databases

Why – search engines, directories and deep web?

   Many people use search engines without considering the usefulness of
    subject directories for their topics

   The difference between these types of tools is often poorly understood

   Yahoo has such a popular directory that more selective and higher
    quality directories are often overlooked

   The invisible Web is growing at a phenomenal rate, so its content is
    becoming increasingly important when researching

   All of these tools can complement each other in the research process

   The lines are blurring between sites that offer either one resource or the
    other; for example, it is common to find directories and specialized
    searches (i.e., deep Web) at many search engine sites
Subject Specific Search Engines
   Subject-specific search engines do not attempt to index
    the entire Web

   Aim for depth of coverage within a single area

   Two quick find sites for subject search engines:



When to use a search engine:

   When you have a narrow or obscure topic or idea to research

   When you are looking for a specific site

   When you want to search the full text of millions of pages

   When you want to retrieve a large number of documents on your

   When you want to search for particular types of documents, file
    types, source locations, languages, date last modified, etc.

   When you want to take advantage of newer retrieval technologies
    such as concept clustering, ranking by popularity, link ranking, and
    so on

Metasearch Engines

   Searches the databases of other search engines

   Doesn’t create its own database of information

   Can allow you to sift through results to see what
    is out there in WWW

   BUT be aware of their restrictions…

Metasearch Engines

   Use the results “clustering” or refining features

       Dogpile

       KillerInfo

       Vivisimo

       Mooter

       Wisenut

Subject Directories
   Collections of links to Internet resources, usually compiled by people,
    and organized into subject categories

   For general, research oriented queries use a subject directory

        Academic and professional directories - often created and maintained by
         subject experts to support the needs of researchers

        Commercial portals cater to the general public and are competing for

        INFOMINE , LII and AcademicInfo are good examples of academic subject
         directories. And also try Pinakes

        Yahoo , Google and are good examples of commercial portals -
         but should never be used for serious research

Use subject directories if:

      you’re doing in-depth research

      you’re not familiar with your topic

      you don’t know where to start

      you want a relatively small number of substantive sites

      you want sites or ideas recommended by experts

        …use a subject directory

Directory Tips
       A broad topic may be worth investigating

       Subject classification is inconsistent
        between directories

       Try this when searching:
          Search for broad topic in a directory
          Start browsing

Search Engine and Directory Features

   Useful site to determine features:

       How to Choose a Search Engine or Directory


Invisible Web

 Information stored in searchable databases located on the

   Search engine spiders cannot or will not index this information

   Also consists of multimedia files, and files created in non-
    standard file types such as PDF

   Google includes searches of PDF files into its general searching

Invisible Web
   Topic coverage is variable

   Information dynamically changing in content appears on the
    Invisible Web e.g.: news, job postings, available airline flights, etc

   Directories such as phone books, company data are a part of the
    invisible Web

   Gary Price is an authority on Invisible Web resources and has
    assembled an excellent collection at his site -


When to use the invisible Web:

   When you want dynamically changing content
    such as the latest news, job postings, available
    airline flights, when you need to use a login,etc.

   When you want to find information that is
    normally stored in a database, such as a phone
    book listing, listings of lawyers, doctors, plants
    etc., searchable collections of laws, geographical
    and company data, and so on

   No ‘one’ web tool catalogues, indexes or organizes the
    whole web

   Remember you are searching a database, not the web
    (perhaps the documents are not (yet) included in the database you
    are searching -- try another search engine)

   Perhaps you are using a specialized search tool that is not
    the right one for your information need
    (if looking for information in the Arts, a search engine specializing
    in the Social Sciences won’t help)
Some tools…
Internet Research Tips

Pat Ensor’s page

Berkeley’s beyond general WWW searching

         BOTTOM LINE:

Is the web page as good as or better than
what you can find in journal articles or other
            published literature

7 Commandments of effective Web searching

    Do not waste your time

    Believe not all you may read

    Use the appropriate tool

    Read the directions

    Be flexible in your searching

    Keep up to date

    Do not forsake the old ways (books & journals & librarians)

Note: Reference your Sources!


   Always state where you found the information!

    Write down all the details

    Web pages can be moved or removed

    …….but, they can often be accessed via archival sites

 I’m looking for a specific fact/person/
  event/site/multi-concept topic

 General search engines with a large index, good
  relevancy ranking
         e.g.:Google, Yahoo, AlltheWeb, Turboscout


 I’m doing in-depth research and need help
  exploring what my topic is all about.

 Concept clustering tools
        e.g.: Mooter, Accumo, Clusty, Vivisimo, Query

   If…
       you are doing in-depth research

       you want the option to expand on your search
        with alternative topics

       you want to investigate a link ranking engine
        that does its ranking a little differently than

   If…
       you are doing in-depth research

       you are just getting started with your topic and
        aren’t sure what it’s all about

       you don’t want results in just one, long,
        undifferentiated list

       you want to see resources on your topic organized
        into subtopics

         … try a concept clustering search engine e.g.:
        Clusty, Mooter                                      31
   If…

       you are doing in-depth research

       you are just getting started with your topic and don't know
        much about it

       you don't want to retrieve results in just one long list

       you want to organize your thoughts about your topic by
        seeing relevant subtopics

       you want to see resources on your topic organized into

       your topic is somewhat obscure so a search across multiple
        sources might help

        …try Vivisimo
“Split-Level” Searching

    Good general advice for getting at deep Web content,
     especially within databases

     Two-level process
    1. Search for the database site on the WWW

    2.   Search the database for the information

Practice: Split Level Searching
   Query:
          What Australian law firm does the solicitor Robyn
           Phillips work for?

   Tools:
          Link ranking search engines, e.g., Google,

   Search: +lawyers +directory
          Limit to Australia
          Look for a database ( is a database), then
           search within the database

Next Session.....Evaluating Web Pages


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