Webinator Search Help
The Webinator's search can be as simple or as complex as you need it to be.
Usually you will just need to enter a few words that best describe that
which you are trying to locate. To perform more complicated searches you
might use any combination of logic operators, special pattern matchers, concept expansion,
or proximity operations.
Example: nature conservation organization
Query Rules of Thumb:
- If you get too many junk or nonsense answers, try:
- Add some more words to your query.
- Decrease the range of the Proximity control.
- Change the Word Forms control to Exact.
- Look at the Match Info and see why they are showing up.
- Use the Exclusion Operator (-) to remove unwanted terms.
- If you are searching for a phrase, hyphenate the words together.
- If you don't get any answers, or just too few:
- Remove some more words to your query.
- Examine your spelling.
- Increase the scope of the Proximity control.
- It just might not be there?
Overview of query abilities
The Webinator is an example
Texis application and
as such it shares its text query abilities with all of Thunderstone's
products. Throughout our documentation you will see references to Metamorph
or Texis, this is because all of our products share a common text query
language. This document provides only a brief overview of this language.
If you'd like to know more see this document ,
and if you really want the gory details, see the
online manual.
- Controlling proximity:
Mastering the usage of proximity gives the ability to locate
answers with greater precision. The Webinator input form gives
you several options to control the search proximity:
- line
All query terms must occur on the same line
- sentence
Query items should all reside within the same sentence
- paragraph
Within the same paragraph or text block
- page (default)
All items must occur within same HTML document
The bar-graph display ( )
will be shown any time a ranking search was performed (eg. all searches
except Show Parents).
- Ranking Factors
The ranking algorithm takes into consideration relative word
ordering, word proximity, database frequency, document frequency,
and position in text. The relative importance of these factors in
computing the quality of a hit can be altered under
RANKING FACTORS
on the Options page.
- Keywords Phrases and Wild-cards:
To locate words, just type them in as you would in a word processor.
Letter cases will be ignored.
The wild-card character * (asterisk) may be used to match
just the prefix of a word or to ignore the middle of something.
If the item you wish to locate is more complicated than the simple * wild-card
can accomplish, try using the regular
expression matcher.
To locate a number of adjacent words in a specific order, surround them with
" (double quotation) characters. Putting a '-' (hyphen)
between words will also force order and one word proximity.
Examples:
Query Locates
----------------------------------------------------------
john john, John
"john public" John Public
web-browser Web browser, web-browser
John*Public John Q. Public, John Public
456*a*def 1-23456-789-ABCDEF
activate activate, activation, activated... (see Word Forms)
- Applying Search Logic
Texis and Metamorph use set logic for text queries. Set logic
is easier to use and provides more abilities than boolean.
The examples below make reference to single keywords, but
keep in mind that each keyword can represent an entire list of
things or any of the special pattern matchers.
Sets (or lists) of things are specified by placing the elements
within parenthesis, separated by commas. example:
(bob,joe,sam,sue) . In the examples below, you could
replace any of the keywords with a list like this.
The default behavior of the search is to locate an intersection
(or 'AND') of every element within a query. This means that the
query; "microsoft bob interface" is the equivalent to
the boolean query: "microsoft AND bob AND interface"
- '-' (without)
The '-'(minus) is the most commonly used logic symbol. It
means the answer should EXCLUDE references to that item.
- '+' (mandatory)
The '+'(plus) symbol in front of a search item means
that the answer MUST INCLUDE that item. This is generally
used in conjunction with the permutation operation.
- '@N' (permute)
The '@' followed by a number indicates how
many intersections to locate of the terms in your query.
This may be confusing at first, but it is very powerful.
Notes: Only the '+' and '-' operations are valid
with a relevance rank search.
Example Finds
-----------------------------------------------------------------
bob sam joe Bob with Sam and Joe (within the selected proximity)
bob sam -joe Bob with Sam without Joe
bob sam joe @1 Bob with Sam, or, Bob with Joe, or, Joe with Sam
A B C D @1 AB or AC or AD or BC or BD or CD
+A B C D @1 ABC or ABD or ACD
A B C -D @1 ( AB or AC or BC ) without D
- Natural Language Query:
You may enter a query in the form of a sentence or
question. The software will automatically identify the important words
and phrases within your query and remove the "noise words".
- Example:
- What is the state of the art in text retrieval?
- The software will search for:
- state of the art AND text AND retrieval
- Using the Special Pattern Matchers
These pattern matchers are used to locate hard-to-find items
within text:
If improperly used these pattern matchers can slow queries.
Therefore they require other keyword(s) in the query, and
are disabled entirely under Page proximity. For more details
see the Vortex manual on
Query Protection.
Example Matcher Finds
------------------------------------------------------------------------
ronald %regan Approx Ronald Raygun, Ronald Re~an, Ronald 8eagan
%75MYPARTNO9045d/6a Approx Anything within 75% of looking like MYPARTNO9045d/6a
/19[789][0-9] Reg.Expr. 1970-1999
/[1-9]{3}\-=[0-9]{4} Reg.Expr. Phone numbers like 555-1212, 820-2200
#87 Numeric four score and seven, 87
#>0<1 Numeric Fractions like 9/16, 55%, 0.123, 15 nanoseconds
- Invoking Thesaurus Expansion
Metamorph and Texis have an edit-able vocabulary of over 250,000 word and
phrase associations. Each entry is generally classifiable by either its
meaning or part of speech.
To expand the meaning of a word or phrase within your query,
precede it with a '~' (tilde) character.
The
Word forms options give you control over how many variations
of your query terms will be sought in your search.
- Exact: (default) Only exact matches will be allowed.
- Plural & possessives: Plural and possessive forms will be found. (s, es, 's)
- Any word forms: As many word forms as can be derived will be located.
EXAMPLES:
president
EXACT : president
PLURAL: (above) + presidents president's
ANY : (above) + presidential presidency preside presides presiding presided
tight
EXACT : tight
PLURAL: (above) + tights
ANY : (above) + tightly tightening tightened tighter tightest
program
EXACT : programs
PLURAL: (above) + programs program's
ANY : (above) + programming programmatic programmed programmer programmable
We call this morpheme processing, and it is generally smarter than
a traditional "stemming" algorithm. It doesn't just rip the end off a word,
it actually checks to see if it could be a valid form of the search term.
click here for more info
Notes: Thesaurus terms are also treated in the same manner.
Words smaller than 4-5 characters will not be processed.
These options give you control over the region in which a match
must be found.
- line: match terms must be located within the same line.
- sentence: all terms within the same sentence.
- paragraph: match terms must be located within the same paragraph
- page: (default) all terms within the same document.
In all cases the best possible matches for your query are located and
ordered by decreasing quality. A bar graph is produced to indicate the
quality of each answer.
Note: The look and feel described here is for the standard search interface.
The interface may have been customized by the web site administrator.
When a query is submitted it will come back with another query form
and up to 10 matching documents. If there are more than 10 answers,
a link at the top and bottom of the list will allow you to view the next 10
in sequence.
The input form at the top allows you further tailor your query to home-in
on the desired answers, or to submit a completely new query without having
to navigate back to the original input form.
Each answer in the result set will have a format similar to the following:
The components of each result are:
- Result number
- Document title ( clicking on this will take you to the original document )
- Abstract (The first few hundred characters of the document )
- Match quality graph. 84% ( Only shown if relevancy ranking was used )
- Size ( How big is the original document )
- Depth ( How many clicks from the top of the site )
- Find Similar ( Find other documents similar to this one )
- Match Info ( View the matches and other information about the document )
- Show Parents ( List pages that link to this one )
The Match Info link will show you the context of your answers within
the matching document. Matching words will be shown like this.
Clicking on any match term will take you to the next matching term.
A summary at the top of the in-context view shows information about the
document including the time it was last indexed by the Webinator.
The Find Similar link will find documents that are similar to the corresponding result. It
does this by reading the original document to ascertain its main subject matter,
and then conducting a relevance ranked search for those subjects.
Result documents are ordered from best to worst match. The bar graph display
will indicate the overall quality of the match.
Note:The document you click on may not be ranked as the best match.
This is because other documents may contain more information about the
overall subject matter than the original.
Often times it is difficult to navigate using a search engine because
there is no back-link present on the matching document. The
Show Parents link
solves this.
This link will show other documents that contain hyperlinks to the
one you click on. In other words, it is an automated back button.