PsychSpider enables you to limit your search to certain attributes of a document. While indexing the crawled documents PsychSpider extracts zones and fields in documents so that they can be searched. Mime-Type, language, title, keywords, author or URL are such attributes which are kept in zones or fields, so that they become searchable.
To search these fields you can use the Parametric Index or use special search syntax. There is a major difference in the search syntax if the attribute is stored in a zone or in a field. Mime-Type and VLang (language) are fields. The used relational operator with this syntax is equal to (=). Be sure to enclose your search with double quotation marks if it contains spaces, otherwise the part after the space would not be treated as part of your field search.
Mime-Types or doktype is part of the Parametric Index. PsychSpider is able to reduce the generated hits to certain document types. If for example you want to have pdf-articles, you can use the following search option:
Tip of the week: White spaces between words are treated as an AND Operator, except you have put quotation marks around your search term (Tip 9).
URL of this page: https://www.zpid.de/PsychSpider_Hilfe.php?tip=21&lang=EN