The following techniques can be used to improve the efficiency and effectiveness of searching within eData.
Boolean searching employs logical operators to connect multiple search terms. This can aid precision-searching by combining or excluding search terms. The most commonly-used operators are AND, OR and NOT. These should be entered in upper case. If entered in lower case, the search engine will read them as stop words and ignore them.
- Use AND to find publications with both terms in the record. This narrows the results set. For example, 'neutrino AND oscillation' will find only records containing both 'neutrino' and 'oscillation'. Note that multiple terms entered without operators are combined using AND connectors by the search engine: the search 'neutrino oscillation' will return the same hits as 'neutrino AND oscillation'.
- Use OR to find records with one or more of the search terms. This widens the result set. For example, the set of results retrieved by the search 'Vulcan OR Laser' will be the same as the combined sets of the separate single-term searches, 'Vulcan' and 'Laser'.
- Use NOT to exclude records containing a specified search term. For example, 'Vulcan NOT Laser' will find all records containing the term 'Vulcan' but not containing the term 'Laser'.
- Parentheses can be used to form more complex queries. Search operations in parentheses will be performed first. For example: '(Vulcan OR Laser) AND (Smith NOT Collier)'.
eData allows for phrase searching with the use of " ". The query "plasma waves" will find fewer results than plasma waves.
Searching Specific Fields:
The single search box in eData will search across many fields automatically. For example, entering a title, author or keyword will bring back associated records.
You can explicitly search a field using the syntax: "field:query". For example, the search author:Duncan, finds records that contain that value in the author field.
Wildcard Use in eData:
Searches within eData can be performed using the wildcards “?” and “*”.
The question mark (?) will match any one character and can be used to find “Gray” or “Grey” by searching for “Gr?y”.
The asterisk (*) will match zero or more characters within a word or at the end of a word. A search for “Ch*ter” would match “Charter”, “Character”, and “Chapter”. When used at the end of a word, such as “Temp*”, it will match all suffixes “Temptation”, “Temple” and “Temporary”.