Search Tips

Basic searching
A single term search involves a single word such as "
geology" or "patent" (without the quotation marks).

A phrase search is a group of words surrounded by double quotes such as "Trenton River".

A little more advanced searching
Sometimes you will have a good idea of what your searching for. Articles from a specific year in a specific publication for instance. It's very easy to combine searches in the multiple fields provided. For instance, searching for all articles in the 2001 AAPG Bulletin and SEPM's JSR can be accomplished by checking ONLY the Bulletin and JSR collections and typing 2005 in BOTH of the year fields. Press the Search button and your results will be limited to those collections and the specified period of time.

Other times you might have a situation where there are specific concepts in a document but aren't part of a phrase. That is where the AND operator becomes useful. Such as a search for sedimentology AND delta.

Sifting OUT material
oYou may run into situations where you are getting material you don't want. The NOT operator is really useful. In the title field, searching Bulletin articles it's handy to type in
Calgary NOT abstract. That will sift out all the Calgary meeting abstracts.

.Two wildcards are useful on this site:

The ? operator acts as a single character wildcard. M?d will match words like Mud, Mad, Med, Mod, Mid and so on.

The * operator acts as a multiple character wildcard. Petrol*m will match Petroleum and so on.

Fuzzy Searches
This site supports fuzzy searches based on the Levenshtein Distance, or Edit Distance algorithm. To do a fuzzy search use the tilde, "~", symbol at the end of a Single word Term. For example to search for a term similar in spelling to "roam" use the fuzzy search.

roam~ will find word such as foam and roams.

An additional (optional) parameter can specify the required similarity. The value is between 0 and 1 (if not specified 0.5 is used), with a value closer to 1 only terms with a higher similarity will be matched. For example roam~0.8

Proximity Searches
This site supports finding words that are a within a specific distance away. To do a proximity search use the tilde, "~", symbol at the end of a Phrase. For example to search for a "petroleum" and "geology" within 10 words of each other in a document use the search:
"Petroleum Geology" ~10

Other Booleans
The "+" operator also called the required operator requires that the term after the "+" symbol exist somewhere in a the field of a single document. So, to search for documents that must contain "Calgary" and may contain "meeting" use the query:
+Calgary meeting

There are additional sophisticated search methods available and we will be adding them to this document very soon.

This page is copyright © 2005, Datapages, Inc.

Revised: 4/24/08





Search and Discovery

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