jaslin groupSAN FRANCISCOjaslin@jaslin.com

California California CoalitionCoalitionof Nurse of Nurse PractitionersPractitionersData Mining on the Internet

“finding it in Cyberspace”

James A. Sanders, CAE

jaslin group SAN FRANCISCO

WHAT WE WANT TO WHAT WE WANT TO LEARN TODAYLEARN TODAY

What is available on the Internet

What are the best tools to obtain valuable products and services

How to configure a search on a browser

What are the best search sites

Why should I care?

ARE ARE COMPUTERCOMPUTER

SSMALE?MALE?

oror

FEMALE?FEMALE?

Five reasons to Five reasons to believe believe

computers are computers are female...female...

1. No one but the Creator understands their internal logic.

2. The native language they use to communicate with other computers is incomprehensible to everyone else.

3. The message "Bad command or file name" is about as informative as, "If you don't know why I'm mad at you, then I'm certainly not going to tell you."

4. Even your smallest mistakes are stored in long-term memory for later retrieval.

5. As soon as you make a commitment to one, you find yourself spending half your paycheck on accessories for it.

5 REASON TO 5 REASON TO BELIEVE BELIEVE

COMPUTERS ARE COMPUTERS ARE MALE...MALE...

1. They have a lot of data, but are still clueless.

2. They are supposed to help you solve problems, but half the time they ARE the problem.

3. As soon as you commit to one you realize that, if you had waited a little longer, you could have obtained a better model.

4. In order to get their attention, you have to turn them on.

5. Big power surges knock them out for the rest of the night.

WHAT QUESTIONS DO YOU WANT ANSWERED TODAY?

WHAT YOU NEED TO GET ON WHAT YOU NEED TO GET ON THE INTERNETTHE INTERNET

COMPUTERMODEM & PHONE LINESOFTWARE ISP ACCOUNTDOMAIN NAMEE-MAIL NAMEGOOD REFERENCE

BOOKSTIME!

WHAT'S IT GOOD WHAT'S IT GOOD FOR…?FOR…? E-mail

Basic research Limited marketing Event registration File downloads News and information Publishing Resources & reference library Listservers Newsgroups

WEB BROWSERSWEB BROWSERSThe Software you need for the “Web”

NETSCAPE NAVIGATOR or MS INTERNET EXPLORER

IP ADDRESSIP ADDRESS

205.158.47.110Simple…huh?

--Uncle InterNICInternet Network Information

Center

ANATOMY OF A URLANATOMY OF A URL(Uniform Resource (Uniform Resource

Locator)Locator)

http://www.jaslin.com/security/index.html

site type

|

|

sub-domain

unique domain name

|

|

high-level

domain

disk dir

on ISP

|

|

ISP file

browser sees

HIGH-LEVEL DOMAINSHIGH-LEVEL DOMAINS.com COMMERCIAL.edu EDUCATION.gov GOVERNMENT.net WEB HOST.mil MILITARY.org OTHER / NON-

PROFIT.uk United

Kingdom.fr France

FIVE MAJOR GROUPS OF THE INTERNET

Newsgroups and discussion lists files available by FTP bulletin boards and other

services accessible using the telnet command

services organized using gopher software;

material using WWWeb software

MEDIA TYPES ON THE MEDIA TYPES ON THE INTERNETINTERNET

TEXT IMAGESAUDIOVIDEOPERSONAL

COMMENTSPROGRAMS

Surfing is

browsing

without tools.

SEARCHING THE SEARCHING THE INTERNETINTERNET

Releases the true value of the Internet!

Basic research for information Use SEARCH ENGINES to find

info Spiders index the web

continuously Boolean logic - OR, AND & NOT Use multiple search engines Advanced vs. standard search

WHAT DO YOU WANT TO WHAT DO YOU WANT TO FIND?FIND?

A keyword A person A URL A phrase A geographic location A concept A title

TYPES OF SEARCH TYPES OF SEARCH ENGINESENGINES

Keyword Alta VistaHotBotWebcrawler

Concept / hierarchicalYahooInfoseek

Meta SearchSearch.com

COMPONENTS OF COMPONENTS OF SEARCHESSEARCHES

Standard BooleanAdvanced BooleanProximity SearchingRequired TermsProhibited TermsWildcardsCase Sensitivity

SEARCH ENGINES VARY ACCORDING TO:

Size of the index Frequency of updating

the index Search options Speed of returning a

result set Result set presentation Relevancy of the items

included in a result set Overall ease of use.

Search “Rules of Search “Rules of Thumb”Thumb” Enter precise search terms or phrases to

limit the search. Use the required / prohibited term operator; Enter singular terms. Most search engines

will find the substring to generalize a subject;

use wildcards where allowed; Do not use common, generic search terms ...

(book vs. "book binding) Enter multiple spellings where appropriate...

(Khaddafi Quadafy Kaddafi Qadaffi... ) Use Booleans and especially proximity &

adjacency operators to increase the relevancy;

Be persistent and creative. Its a big web out there!

Searching for information on the

Internet is more an ART than a SCIENCE. You should be prepared to spend time looking for

something, and still come up empty.

Some Popular Web Search Some Popular Web Search EnginesEngines

Alta Vista Yahoo Lycos WebCrawler InfoSeek MetaSearch Dogpile Northern

Lights

AltaVista is the premier search engine on the web.

It has the largest, most inclusive indices allows searching of both the web and

many Usenet Newsgroups It provides both simple and advanced

searches

Search terms entered in lower case letters are non-case sensitive.

Capitalized terms (or accented letters) makes the term case sensitive.

HotDog finds only the terms spelled exactly with that capitalization

hotdog finds all occurrences

Case Sensitivity

AaBbCc

Required / Excluded Required / Excluded WordsWords

Require a word - pre-pend it with a + symbol:

+HotDog. Exclude a word - pre-pend it with a -

symbol: +"F. Scott Fitzgerald" -Gatsby.

+Lincoln -automobile

Wildcard CharactersWildcard Characters The asterisk (*) is AltaVista's wildcard

character.butt* will get:

buttbuttsbutterbutton

The asterisk cannot be used at the beginning or in the middle of words. It will substitute for up to 5

additional lower case letters.

Confidence RankingsConfidence RankingsAltaVista will assign a confidence ranking

to the hits it returns based on the following:

The query terms are found in the first few words of the document (especially the title of web pages).

The query terms are found in close proximity to one another in the document.

The document contains more of the search terms than other documents.

SEARCH SYNTAX EXAMPLES horses AND carriages

"Abraham Lincoln" AND "civil war" ("Abraham Lincoln") AND NOT ("civil war") (Note: Do NOT use x NOT y, it must be x

AND NOT y.) "Thomas Middleton" OR "Beaumont and

Fletcher" (dogs OR cats) AND ("pet care") "William Shakespeare" NEAR internet (illegal AND immigrant) AND NOT (Mexico) alien OR ufo alien AND NOT ufo football AND (rugby OR soccer)

PROXIMITY & ADJACENCY PROXIMITY & ADJACENCY EXAMPLESEXAMPLES use NEAR/n, where n is the number of

words apart the two search terms should be

Shakespeare NEAR/5 Internet. If a range is not entered, NEAR will

return hits on documents where the words are next to each other, in either order.

For controlling the specific order two words must appear next to each other, you may use the ADJ operator:

reverse ADJ osmosis.

Yahoo is not a search engine, but strictly a hierarchically arranged subject index.

It has developed over a long time, with lots of editorial care, so the quality is very high.

Browsing Yahoo is the best way to surf for good sites when you don't know (or perhaps care) where exactly you are going.

It is also the best way to find good 'starter' sites, from which you can branch out to more specialized ones.

YAHOO RETURNS 3-YAHOO RETURNS 3-TYPES INFOTYPES INFO

Yahoo categories that match the search term

Actual matching end-sites

The Yahoo categories from which the various pages are indexed

IN YAHOO USER CAN IN YAHOO USER CAN CONTROLCONTROL

Though you cannot create very sophisticated searches as with the search engines, you can control:

where to search - Usenet or Email whether to OR or AND the search

terms search on substrings (find whole

words from partial stringsnumber of matches per page

METASEARCH ENGINESMETASEARCH ENGINES

Search engine of search engines

search.comDogpile

The Internet Sleuth

BOTS AND INTELLIGENT AGENTS

Intelligent agents are software entities that assist people and act on their behalf

Strictly speaking, all bots are "autonomous" able to react to their environments and make decisions without prompting

Bona fide bots are programs with personality

When looking for people, you will usually be looking for one of the major information pieces:

Address Phone number E-mail address Personal information

TODAY WE TODAY WE COVERED...COVERED...

What is available on the Internet

What are the best tools to obtain valuable products and services

How to configure a search on a browser

What are the best search sites

Why should I care?

YOU ARE YOU ARE NOW….NOW….

MASTER OF CYBERSPACE!

Data Mining on

the Internet “finding it

in

Cyberspace”

"I think there's "I think there's a world market a world market

for about 5 for about 5 computers.”computers.”

Thomas J. Watson, Thomas J. Watson, Chairman of the Chairman of the

Board, IBM (around Board, IBM (around

1948)1948)

““There is no There is no reason anyone reason anyone would want a would want a

computer in their computer in their home.”home.”

Ken Olson, president, Ken Olson, president, chairman and founder of chairman and founder of Digital Equipment Corp., Digital Equipment Corp.,

19771977

jaslin groupSAN FRANCISCOjaslin@jaslin.com