presentacion - google avanzado - ingles

8/9/2019 Presentacion - Google Avanzado - Ingles

1/95

1

Important InformationImportant Information

This presentation was created by

Patrick Crispen. You are free to reuse this

presentation provided that youNot make any money from this

presentation.

Give credit where credit is due.


2/95

2

Google 201:Google 201:

Advanced Advanced GoogolgyGoogolgy a presentation by

Patrick Douglas Crispen


3/95

3

Our GoalsOur Goals

Learn how Google reallyworks.

Discover some Google secretsGoogle secrets no oneever tells you.

Play around with some of Googlesadvanced search operatorsadvanced search operators.

Find out where to get moreGoogle-related help and information.

DO ALL OF THIS IN ENGLISH!


4/95

4

PART ONE:PART ONE:How GoogleHow Google REALLYREALLY

WorksWorks

Or, at least, how I thinkGoogle really works.


5/95

5

One Word of WarningOne Word of Warning

For obvious reasons, the folks at Google

would rather the Wizard of Ozstay behind the curtain, so to speak.

So, what you are about to see on the next

few slides are just plain guesses on mypart.

And, my guesses are probablycompletelywrong! But theyre prettyBut theyre pretty.And thats all that matters.


6/95

6

Another Word of WarningAnother Word of Warning

I also need to warn you that my guesses

use a little bit of algebra, but I promise itis simple algebra. Well, there is one intimidating-looking

equation, but well get to that in a bit.

Just remember that, in this case, X > Y >Z, and there can be different values for

each variable (X1 > X2 > Xn.)

Ive lost you already, havent I?


7/95

7

How Google WorksHow Google Works -- PhrasesPhrases

When you search formultiple keywords,

Google first searchesfor allof yourkeywords as a phrase.

I think. So, if your keywords

are disneyfantasyland

pirates, any pageson which those wordsappear as a phrasereceive a score of X.

Image source: Google

Source: Google Hacks, p. 21


8/95

8

How Google WorksHow Google Works -- AdjacencyAdjacency

Google then

measures theadjacency betweenyour keywords and

gives those pagesa score of Y.

What does this

mean in English?Well

Image source: Google



9/95

9

How Adjacency WorksHow Adjacency Works

A page that says

My favorite Disneyattraction, outside ofFantasyland, is Pirates of the Caribbean

will receive a higher adjacency score than a pagethat says

Walt Disneywas a both a genius and ataskmaster. The team at WDI spent manysleepless nights designing Fantasyland. But

nothing could compare to the amount ofImagineering work required to create Piratesof the Caribbean.


10/95

10

How Google WorksHow Google Works -- WeightsWeights

Then, Google measures the number

of times your keywords appear onthe page (the keywords weights)and gives those pages a score of Z.

A page that has the word disneyfour times, fantasylandthree times,andpirates seven times wouldreceive a higher weights score than apage that only has those words once.



11/95

11

You StillYou Still

With Me?With Me?


12/95

12

Putting it All TogetherPutting it All Together

Google takes

The phrase hits (the Xs), The adjacency hits (the Ys),

The weights hits (the Zs), and

About 100 other secret variables Throws out everything but the top 2,000

Multiplies each remaining pages individual

score by its PageRank And, finally, displays the top 1,000 in

order.


13/95

13

PageRank?PageRank?

There is a premise in higher education that theimportance of a research paper can be judged by

the number of citations the paper has fromother research papers.

Google simply applies this premise to the Web:

the importance of a Web page can be judged bythe number of hyperlinks pointing to it from other pages.

Or, to put it mathematically [brace yourself thenext slide contains the intimidating-lookingequation I warned you about]



14/95

14

The PageRank AlgorithmThe PageRank Algorithm

+++=

)(

)(...

)1(

)1()1()(

TnC

TnPR

TC

TPRddAPR

Where

PR(A) is the PageRank of Page A

PR(T1) is the PageRank of page T1

C(T1) is the number of outgoing links from the pageT1

d is a damping factor in the range of 0 < d < 1,usually set to 0.85



15/95

15

You Can Start Breathing AgainYou Can Start Breathing Again

I promise there are no more equations inI promise there are no more equations inthis presentationthis presentation.

I just wanted to show you that thePAGE RANK of a Web page is the sum ofthe PageRanks of all the pages linking to it

divided by the number of links on each ofthose pages. A page with a lot of (incoming) links to it is

deemed to be more important than a pagewith only a few links to it.

A page with few (outgoing) links to otherpages is deemed to be more important than apage with links to lots of other pages.



16/95

16

PART ONE :PART ONE :

SummarySummary Google first searches for your keywords as a

phrase and gives those hits a score of X.

Google then searches for keyword adjacency andgives those hits a score of Y.

Google then looks for keyword weights and givesthose hits a score of Z.

Google combines the Xs, the Ys, the Zs, and awhole bunch of unknown variables, and thenweeds out all but the top 2,000 scores.

Finally, Google takes the top 2,000 scores,multiplies each by their respective PageRank, anddisplays the top 1,000.

I think.


17/95

17

PART TWO:PART TWO:

More Stuff No One Tells YouMore Stuff No One Tells You

Googles shocking secretsrevealed!


18/95

18

Googles Boolean Default isGoogles Boolean Default is

ANDAND

But there are ways to getaround that.


19/95

19

Boolean Default isBoolean Default is ANDAND

If you search for more than one keyword

at a time, Google will automatically searchfor pages that contain ALL of yourkeywords.

A search for disney fantasylandpirates is the same as searching fordisney AND fantasyland AND pirates

But, if you try to useAND on your own,

Google yells at you.

Source: http://www.google.com/help/basics.html


20/95

20

PHRASES PHRASES To search for phrases, just put your

phrase in quotes. For example, disney fantasylandpirates of the caribbean This would show you all the pages in Googles

index that contain the word disney AND the

word fantasylandAND the phrasepiratesof the caribbean (without the quotes)

By the way, while this search is technicallyperfect, my choice of keywords contains a(deliberate) factual mistake. Can you spotit?

Source: http://www.google.com/help/refinesearch.html


21/95

21

Arr, There She Blows!Arr, There She Blows!

Pirates of theCaribbean

- isnt in Fantasyland,- its in Adventureland

in Orlando and NewOrleans Square inAnaheim.

So searching fordisney AND

fantasyland ANDpirates of thecaribbean probablyisnt a good idea.

Image source: http://www.balgavy.at/


22/95

22

BooleanBoolean OROR

Sometimes the defaultAND gets in theway. Thats where ORcomes in.

The Boolean operator ORis always inall CAPS and goes between keywords.

For example, an improvement over our

earlier search would be disneyfantasyland OR pirates of thecaribbean

This would show you all the pages in Googlesindex that contain the word disney AND theword fantasylandOR the phrasepirates ofthe caribbean (without the quotes)

Source: http://www.google.com/help/refinesearch.html


23/95

23

Three Ways toThree Ways to ORORat Googleat Google

Just type ORbetween keywords disney fantasyland OR

pirates of the caribbean

Put your ORstatement in parentheses disney (fantasyland OR

pirates of the caribbean) Use the | (pipe) character in place of the wordOR

disney (fantasyland |pirates of the caribbean)

All three methods yield the exactsame results.



24/95

24

OR, She Blows!OR, She Blows!

Just remember,

Googles Booleandefault isAND

Sometimes thedefaultAND gets in

the way. Thats

where ORcomes in.

Image source: http://www.phil-sears.com/


25/95

25

CapitalizationCapitalizationDoes NOT MatterDoes NOT Matter

The old AltaVista trick oftyping your keywords in lowercase is no longer necessary.


26/95

26

How Insensitive !How Insensitive !

Google is notcase sensitive.

So, the following searches all yieldexactly the same results:

disney fantasyland piratesDisney Fantasyland Pirates

DISNEY FANTASYLAND PIRATES

DiSnEy FaNtAsYlAnD pIrAtEs

Source: http://www.google.com/help/basics.html


27/95

27

Google Has a Hard Limit ofGoogle Has a Hard Limit of10 Keywords10 Keywords

Bet you didnt know THAT!



28/95

28

Googles 10 Word LimitGoogles 10 Word Limit

Google wont accept more than 10

keywords at a time. Any keyword past 10 is simply

ignored. How can you get around this limit?

Well, first you need to rememberthat



29/95

29

Google Ignores a BUNCHGoogle Ignores a BUNCHof Common Wordsof Common Words

Words to avoid


30/95

30

Stop WordsStop Words

To enhance the

speed andrelevancy of yourWeb search,

Google routinelyand automaticallyignores common

words andcharacters knownas stop words.

Source: http://www.google.com/press/guide/reviewguide_7.html


31/95

31

Stop, _ _ Name _ Love

This is certainly not a canonical list, but

here are 28 stop words I know about. a, about, an, and, are, as, at, be, by,

from, how, i, in, is, it, of, on, or, that, the,

this, to, we, what, when, where, which,with

You can force Google to search for a stopword by putting a + in front of it (forexamplepirates +of +the caribbean)

Source: 10/23/02 post by Bill Todd to news:google.public.support.general


32/95

32

Dealing with the 10 Word LimitDealing with the 10 Word Limit

Omit the stop

words in yoursearch terms andyoull probably

never run into the10 word limit.

Another way

around the limit isto use wildcards.

Image source: http://www.alloyd.com/


33/95

33

Google DOES SupportGoogle DOES SupportWildcard Searches Sort Of.Wildcard Searches Sort Of.

When you wish upon a *.


34/95

34

WildcardsWildcards

Wildcards are characters, usually asterisks

(*), that represent other characters. For example, some search engines

support a technique called stemming

With stemming, you search for something likepirate* and the search engine shows you all

the pages in its database that contain variants

of the word pirate pirates, pirated, etc. But, did you notice I said

some search engines?


35/95

35

Google and WildcardsGoogle and Wildcards

Google doesnt support stemming.

Rather, Google offers full-word wildcards.

For example, if you search Google for its+a * world, Google shows you all of thepages in its database that contain the

phraseits a small world and its anano world and its a Linux world and so on.



36/95

36

its +a * worldits +a * world

The ++ before a is

required because it isa stop word and wouldotherwise be ignored.

Most of the hits arephrases becausethats what Googlelooks for first.

Oh, and I defyyou toget that song out ofyour head!Image source: http://themeparksource.com/


37/95


38/95

38

TheThe OrderOrder of Yourof YourKeywords MattersKeywords Matters

A me life for pirates?A me life for pirates?


39/95

39

How Google WorksHow Google Works

When you conducta search at Google,it searches for Phrases, then

Adjacency, then

Weights.

Because Googlesearches forphrases first, theorder of yourkeywords matters.Image source: Google

Source: Google Hacks, p. 20-22


40/95

40

For ExampleFor Example

A search for disneyfantasyland

pirates yields the

same number of hits

as a search for

fantasylanddisney pirates,

but the order of

those hits especially the first10 is noticeably

different.


41/95

41

PART TWO:PART TWO:

SummarySummary Googles Boolean default is AND.

Capitalization does not matter. Google has a hard limit of

10 keywords.

Google ignores a BUNCH ofcommon words.

Google does supportwildcard searches sort of.

The order of your keywords matters.


42/95

42

PART THREE:PART THREE:Advanced Search OperatorsAdvanced Search Operators

Beyond plusses, minuses,ANDs, ORs, quotes, and *s


43/95

43

How Google Finds New PagesHow Google Finds New Pages

Google has specialprograms calledspiders (a.k.a.

Google bots) thatconstantly search theInternet looking fornew or updated Web

pages. When a spider finds a

new or updated page,it reads that entire

page, reports back toGoogle, and then visitsall of the other pagesto which that new page

links.Image source: http://www.disobey.com/


44/95

44

Paging MissPaging Miss MuffetMuffet

When the spider reports back to

Google, it doesnt just tell Google thenew or updated pages URL.

The spider also sends Google acomplete copy of the entire Webpage HTML, text, images, etc.

Google then adds that page and allof its content to Googles cache.


45/95

45

So What?So What?

When you search Google, youre actually

searching Googles cache of Web pages. And because of this, you can search for

more than text or phrases in the body of a

Web page. Google has some secret, advanced search

operators that let you search specific partsof Web pages or specific types ofinformation.



46/95

46

Advanced OperatorsAdvanced Operators

Query modifiers

daterange:

filetype:

inanchor:

intext: intitle:

inurl:

site:

Alternative query types

cache:

link:

related:

info:Other information needs

phonebook:

stocks: define:

Google Calculator


47/95

47

Query ModifiersQuery Modifiers

Stuff you can add to the end

your regular searches


48/95

48

daterange:daterange:

daterange: limitsyour search to a

particular date orrange of dates that apage was indexed byGoogle.

daterange: onlyworks with Juliandates, so youll needto find a Julian date

converter online. The Julian date must

be an integer(no decimals.)



49/95

49

daterange:start-stop

pirates daterange:2452401-2452766


50/95

50

filetype:filetype:

filetype: restrictsyour results to files

ending in ".doc" (or.xls, .ppt. etc.), andshows you only filescreated with the

correspondingprogram. There can be no space

between filetype:

and the file extension The dot in the file

extension .doc isoptional.

Source: http://www.google.com/help/faq_filetypes.html


51/95

51

GooglesGoogles OfficialOfficial FiletypesFiletypes

Adobe PortableDocument Format

(pdf)

Adobe PostScript (ps)

Lotus 1-2-3 (wk1,wk2, wk3, wk4, wk5,wki, wks, wku)

Lotus WordPro (lwp)

MacWrite (mw)

Microsoft Excel (xls)

Microsoft PowerPoint(ppt)

Microsoft Word (doc)

Microsoft Works (wks,wps, wdb)

Microsoft Write (wri)

Rich Text Format (rtf) Text (ans, txt)

Source: http://www.google.com/help/faq_filetypes.html


52/95

52

filetype:extension

pirates filetype:pdf

pirates -filetype:pdf


53/95

53

inanchor:inanchor:

Using inanchor:

restricts the results to

text in a pages linkanchors.

There can be no space

between inanchor:and the followingword.

You can also searchfor phrases. Just putyour phrase in quotes.

Source: http://www.google.com/help/operators.html


54/95

54

Link Anchor Text?Link Anchor Text?

Pirates of the Caribbeanopened March 18, 1967.

Please sign our

guestbook


55/95

55

inanchor:terms

inanchor:guestbook

pirates -inanchor:walt disney


56/95

56

intext:intext:

intext: ignores linktext, URLs, and titles,

and only searchesbody text. intext: helps you

find query words that

are too common inURLs and links. There can be no space

between intext: and

the following word. You can also search

for phrases. Just putyour phrase in quotes.



57/95

57

intext:terms

intext:disney

pirates -intext:disney.com


58/95

58

intitle:intitle:

Using intitle:restricts the results to

documents containinga particular word in itstitle.

There can be no spacebetween intitle:and the followingword.

You can also searchfor phrases. Just putyour phrase in quotes.



59/95

59

Title?Title?

Pirates of the Caribbean

...


60/95

60

intitle:terms

intitle:pirates

pirates -intitle:walt disney


61/95

61

A Quick QuestionA Quick Question

What would happen if I searched forintitle:walt disney (without thequotes)?

Google would look for every pagewith the worldwalt in its title ANDthe word disney somewhere in itsbody.

Remember, the quotes are kind ofimportant if you want to search forphrases using intitle:


62/95

62

inurl:inurl:

Using inurl:

restricts the resultsto documentscontaining a

particular word inits URL.

There can be no

space betweeninurl: and the

following word.



63/95

63

URL ?URL ?

A URL is a uniform resource locator,

a string that uses a standard syntaxto identify an access protocol,location, and identifier for a file or

other Internet resource.http://www.disney.com/

http://www.google.com/

ftp://wuarchive.wustl.edu/

news:google.public.support.general

Source: http://search400.techtarget.com/newsItem/0,289139,sid3_gci850,00.html


64/95

64

inurl:term

inurl:disney

pirates inurl:disney


65/95

65

site:site:

Using site:

restricts the resultsto those websitesin a domain.

There can be nospace betweensite: and the

domain.



66/95

66

site:domain

pirates site:disney.com


67/95

67

Using site:Using site:

You use site: in conjunction with anothersearch term or phrase.

pirates site:disney.com

You can also use site: to exclude sites.pirates site:disney.com

You can use site: to exclude or includeentire domains (and, like with filetype, thedot is optional).

pirates site:compirates site:edu


68/95

68

Alternative Query TypesAlternative Query Types

Stuff you can use,if you want to search

without using any keywordswithout using any keywords


69/95

69

cache:cache:

Using cache: shows

the version of a web

page that Google hasin its cache.

There can be no space

between cache: andthe URL.

You can use cache: in

conjunction with akeyword or phrase,but few do.



70/95

70

cache:URL

cache:disney.com


71/95

71

link:link:

Using link:

restricts the resultsto those web pagesthat have links to

the specified URL. There can be no

space between

link: and theURL.



72/95

72

link:URL

link:disney.com


73/95

73

related:related:

Using related:

lists web pagesthat are "similar"to a specified web

page. There can be no

space between

related: and theURL.



74/95

74

related:URL

related:disney.com


75/95

75

info:info:

Using info:

presents someinformation thatGoogle has about a

particular webpage.

There can be no

space betweeninfo: and the

URL.



76/95

76

info:URL

info:disney.com


77/95

77

Other Information NeedsOther Information Needs

Did you know that Google can look upphone numbers, stock quotes,

dictionary definitions, and even the answer to math problems?


78/95

78

phonebook:phonebook:

There are actuallythree different Google

phonebook operators. Usingphonebook:

searches the entireGoogle phonebook.

Using rphonebook:searches residentiallistings only.

Usingbphonebook:searches businesslistings only.


h h b k


79/95

79

How to Use the PhonebookHow to Use the Phonebook

first name (or first initial), last name, city(state is optional)

first name (or first initial), last name,state

first name (or first initial), last name, area

code first name (or first initial), last name, zip

code

phone number, including area code last name, city, state last name, zip code


80/95

80

phonebook:Data

phonebook:disneyland ca

phonebook:(714) 956-6425

k


81/95

81

stocks:stocks:

If you begin a querywith stocks: Google

will treat the rest ofthe query terms asstock ticker symbols,and will link to a

Yahoo finance pageshowing stockinformation for those

symbols. Go crazy with the

spaces Googleignores them!



82/95

82

stocks:Symbol1 Symbol2

stocks: msft

stocks: aapl intc msft macr

d fid fi


83/95

83

define:define:

If you begin a querywith define: Google

will display definitionsfor the word or phrasethat follows, ifdefinitions are

available. There can be no space

between define: and

the word or phraseyou wish to define.

You dont need quotesaround your phrases.

Source: http://www.google.com/help/features.html#definitions


84/95

84

define:term

define:pirate

define:barbary coast

G l C l l tG l C l l t


85/95

85

Google CalculatorGoogle Calculator

Simply key in whatyou'd like Google to

compute (like 2+2)and then hit enter.

Googles Calculatorcan solve mathproblems involvingbasic arithmetic, morecomplicated math,

units of measure andconversions, andphysical constants.

Source: http://www.google.com/help/features.html#calculator

3+44


86/95

86

3+44

56*78

1.21 GW / 88 mph

100 miles in kilometers

sine(30 degrees)

G*(6e24 kg)/(4000 miles)^2

0x7d3 in roman numeralsFor instructions on how to use the Google Calculator, see

http://www.google.com/help/calculator.html

PART THREE:PART THREE:d d O


87/95

87

Advanced OperatorsAdvanced Operators

SUMMARYSUMMARYQuery modifiers

daterange:

filetype:

inanchor:

intext: intitle:

inurl:

site:

Alternative query types

cache:

link:

related:

info:Other information needs

phonebook:

stocks: define:

Google Calculator


88/95

88

The Last Part:The Last Part:Google ResourcesGoogle Resources

Where to get more

information

htt // l /h l /htt // l /h l /


89/95

89

http://www.google.com/help/http://www.google.com/help/

Google HelpCentral

Free guides andFAQs that tell you

about Websearching ingeneral and

Googles featuresin specific.

G l S t NG l S t N


90/95

90

Google Support NewsgroupGoogle Support Newsgroup

Google has a freeUsenet newsgroup:google.public.

support.general

You maybe able toaccess thisnewsgroup through

your Usenetreader.

G l S t NGoogle S ppo t Ne sg o p


91/95

91

Google Support NewsgroupGoogle Support Newsgroup

You can also searchfor the google.

public.support.general newsgroup atnews.google.com.

The easiest way toaccess the newsgroupis to just click on theuser support

discussion forum linkat the top of theGoogle Help Centralpage.

G l H kGoogle Hacks


92/95

92

Google HacksGoogle Hacks

Google Hacks byCalishain and Dornfest

US$24.95 (ISBN0596004478)

This is an extremely

advanced book writtenfor Perl programmers,NOT you and me.

But I still highlyrecommend it.

Image source: Amazon.com

O GoalsOur Goals


93/95

93

Our GoalsOur Goals

Learn how Google reallyworks.

Discover some Google secrets no oneever tells you.

Play around with some of Googlesadvanced search operators.

Find out where to get more Google-related help and information.

DO ALL OF THIS IN ENGLISH!

Fair Use DisclaimerFair Use Disclaimer


94/95

94

Fair Use DisclaimerFair Use Disclaimer

This presentation was created following the FairUse Guidelines for Educational Multimedia.Certain materials are included under the Fair Use

exemption of the U.S. Copyright Law. Furtheruse of these materials and this presentation is

restricted.


95/95

GOOGLE 201:GOOGLE 201:

AdvancedAdvanced GoogolgyGoogolgy

a presentation by

Patrick Douglas Crispen

presentacion - google avanzado - ingles

Documents