WebCrawler Tutorial

by Randy D. Ralph, MLIS, Ph.D.

Last updated September 11, 1996
GO TO: WebCrawler BACK: Search Form NEXT: Web Search Tutorial TOP: Search Engines
The WebCrawler query forms interface is shown below. The form interface has changed significantly recently and gained considerable power and flexibility since WebCrawler searching is now supported by the OpenText search engine. Although it does not have all the features of that engine, this new version is significantly improved. The WebCrawler search page also offers direct access to GNN Select Reviews the Best of the Net which can be browsed by topic.

The WebCrawler Query Form:

Building a search query in the WebCrawler forms interface requires only four simple steps:

Type your search terms into the input box at the bottom of the form. You can use single terms or phrases.

You can also use the Boolean operators (AND), (OR) and (NOT) in your search between terms and phrases to focus it and improve retrieval.

NOT logic needs to be used with some caution because it may exclude documents from your result which you might really want to see.

To search on a phrase you will need to enclose it in double quotes - for example, "quality control" would find web documents that contained that phrase.

Nesting of Boolean logical operations is permitted - for example, ambergris AND (cay OR caye OR key) would locate web documents on Ambergris Caye, a resort island off the coast of Belize that has several spellings. Alternate spellings of the word caye are nested in parentheses and linked with the OR Boolean operator to improve retrieval.

The search engine is changing and improving so you may also want to consult WebCrawler's own Search Tips WWW page for more details on how to do the most effective searching.

Click on he blink displaying the text titles. These display options control the form of the output that WebCrawler will produce. These Display Options are shown below:

Display Options: (first set)
Note that the default is to display just the title of WWW links found. You can also select the summary option which returns not only a list of links but also brief summaries of each WWW site found.

Click on the blink displaying the text 25. These display options set the number of sites that WebCrawler will return to you in your search result. These Display Options are shown below:

Display Options: (second set)
Note that the default is for WebCrawler to return only 25 sites in the search results. You can choose to return up to 100 sites in your search results.

When you have finished entering your search terms and selected the display options you want, click on the button labeled Search to transmit your request to WebCrawler.
GO TO: WebCrawler BACK: Search Form NEXT: Web Search Tutorial TOP: Search Engines