Search in Portal

You can search over the content of the portal.

The following search option can be used:

phrases
A phrase is a group of words enclosed by quotes, like "hello world".

boolean operators
Boolean operators, like 'OR' or 'AND', can be used to specify the search.

The 'or' operator is the default operator.
hello OR world
or
hello world

To search for expression A and expression B a 'AND' has to be placed inbetween. Another possibility is a '+' placed in front of both expressions.
hello AND world
or
+hello +world

if the world 'hello' has to be in the search and the word 'world' not necessarly, the search expression shoul look like this:
+hello world

It is also possible to use the boolean operator 'NOT' or '-', if an expression should be excluded by the search.

hello NOT world means that 'hello' but not 'world' should be included in the search.

grouping of elements
Elements can be grouped if they are enclosed by brackets.

(hello OR world) AND geoportal
This returns all documents that include "geoportal" AND "hello" OR "world".

wildcards
The placeholder for a single character is the "?".
te?t findes words like "test" or "text".

The placeholder for multiple characters is the "*".
test* findes words like "test" or "tester".

ATTN: Both placeholders can be placed at the end or inside an expression but NOT at the beginning.

Fuzzy-Search
To use the fuzzy search, a '~' has to be placed at the end of an single expression.
smile~ would find words like "mile", "smiley" or "miles".

distance search
To use the distant search, a '~' has to be placed at the end of a phrase, followed by the number of words, the expressions of the phrase can be distant maximal.
"geoportal search"~10 would search for the words 'geoportal' and 'search'. The distance between the words can be 10 words maximum.

amplification factor
To amplify an expression, a '^' has to be placed at the end of the expression, followed by the amplification factor.
"hello^4 world" means that the word 'hello' will be 4 times weighted compared to the word 'world'.

Phrases can be also amplified. The standard amplification factor is 1. Amplification factors must be always positive. They can be smaller than 1.

exclude syntactical characters
A phrase is a group of words, enclosed by quotes, like "hello world".

Reserved characters can be included in a search expression by placing a backslash ('\') in front of the character:
\(1\+1\)\:2
means, that the search will be look for "(1+1):2" exactly.

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