Sentence examples for search expression in from inspiring English sources

A total of 3984 papers were found using the search expression in the five digital libraries.

We developed initial search phrases for Google Scholar searches under the Google Scholar search interface restrictions:  Search expressions were limited to a length of 230 characters due to the restriction of a total of 256 characters and the need for further specification of the search expression in the evaluation phase (see below).

The first step was to apply the search expressions in each database of references and save the returned results.

However, we did not only search for the existence of references in Google Scholar, but searched with realistic search expressions in the Google Scholar search interface prior to the evaluation of the result set.

The following general search expression was applied in both Title and Keywords fields, when allowed by the digital library search engine: semantic* AND text* AND (mining OR representation OR clustering OR classification OR association rules).

The detailed search expression is presented in the systematic review flowchart (Additional file 1: Figure S1).

The search expressions used in each of the databases are shown here.

Some fields of the advanced search interface are not available in a search expression as a keyword or field indicator.

The lengths of the search expressions for the MEDLINE CR searches, the length of the derived GS search expression and their ratio is displayed in Table  3.

The steps for applying the searches concerned with the presented search expressions were defined in the following search algorithm: For each keyword, do: Submit a search expression (between quotes) followed by the term "software" in the option "Group Search"; Identify all groups of interest returned, recovering the following data: name, description, group rules and number of members.

All original search expression from the Cochrane reviews and our derived Google Scholar search expressions are included in Additional file 1.