Quick Tips and Examples Refining a Search Special Searches Requiring or Excluding Terms
Quick Tips and Examples
Search by typing words and phrases.
Quick Tips and ExamplesIt's easy to search with DOB Search. Just type in a few words or phrases. Try to use discriminating terms that are likely to be found only in the documents you seek. The more words you give, the better results you'll get. Here are some examples:
Search by typing words and phrases.
Identify phrases with quotation marks, separate with commas.
Pentium computer with "8x CD-ROM", "for sale"A phrase is entered using double quotation marks, and only matches those words which appear adjacent to each other. Separate multiple phrases or proper names with a comma.
Use UPPER case to indicate exact match.
Steve Jobs, NeXTSearch terms in lowercase will match words in any case, otherwise, an exact case match is used. For example, next will find matches for Next, next, and NeXT, whereas a query for NeXT will only match NeXT.
Refining a SearchIt's easy to refine a query to get precisely the results you want. Here are some effective techniques to try:
Identify a phrase.
The before query is ambiguous. Is it looking for the home page of songs like "Run, Run, Run" or baseball statistics? Identifying "home run" as a phrase eliminates the ambiguity. This is the most powerful query refinement technique.
Add a discriminating word or a phrase.
As before, the before query is ambiguous. Adding baseball makes the query less ambiguous. You'll get more total matches (because the query is broadened with an additional term), but the relevance ranking will be better.
Capitalize when appropriate.
These examples, when all lower case, have a variety of possible interpretations. For example, without capitalization, wired could refer to electrical cables and not Wired Magazine. baby bells could refer to the Bells' children on the "Young and the Restless." Capitalization reduces the ambiguity. It is always a good idea to capitalize proper names.
Use a require or reject operator (+,-).
Barney alone is ambiguous. It it looking for Smith Barney investment information or cartoon dinosaur pages? You can use the reject operator (the "minus" sign) to eliminate the cartoon dinosaur interpretation. Or, you can require that the word "Smith" be in the document. The after version above does both.
Use a field specifier.
If you are looking for a particular page that you know the site or title, use the site: or title: field specifier to search for that the word or phrase in the site or title of the page.
Special SearchesYou can restrict searches to certain portions of web documents by using DOB Search field syntax. This allows you to search for web pages' titles, urls, embedded hypertext links, and any additional information defined with a HTML meta tag. The field name should be in lower case, and immediately followed by a colon. There should be no spaces after the colon and before the search terms.
title:"The New York Times"
Requiring or Excluding TermsDOB Search has a simple query syntax which gives you the pinpoint search power of Boolean logic, without having to remember complex queries. The table below shows the DOB Search operators that correspond to Boolean operators:
Boolean queries use the logical operators AND, OR, NOT and ADJ (adjacent). Suppose you wanted to find plain paper color laser printers made by companies other than HP. This query can be specified in Boolean logic as:
(laser ADJ printer) AND (color OR (plain ADJ paper)) AND NOT (HP OR Hewlett-Packard)Using DOB Search operators, the complex query above may be typed into the search box as:
+"laser printer" color "plain paper" -HP, -Hewlett-PackardThis query specifies that:
A traditional Boolean search returns an unsorted list of all items that match the search condition. DOB Search goes considerably beyond this by using advanced statistical search technology to return the results sorted with the "best" matches listed at the top. Unlike plain Boolean searches, DOB Search automatically weights your query terms based on their statistical uniqueness. Common terms, such as "shall," get a much lower weighting than less frequently occurring terms, such as the phrase "golf courses."
DOB Search's advanced statistical weighting allows you to just type in relevant words and phrases, and the system will provide the answer to your query in the top few documents! Since there are cases in which it is convenient to narrow a query using Boolean operators, DOB Search Server allows you to use the + and - Boolean operators. With DOB Search, you get the accurate ranking of statistical searching combined with the information filtering of Boolean searching.