SysTax - a Database System for Systematics and Taxonomy

Web Search

Collection data (+ "portal")

Data ready for search

The new collection query uses a full text index, which is being created with ORACLE interMedia text ™.

The following data from SysTax are indexed:

When standard lists are uses for assigned values, all language variants stored in SysTax are indexed, so that e.g. for "type" and "type" can be searched. Likewise each "holotypus" is found when searching "type". A multi-language query is also possible for all geographical data (Asien - Asia, Brasilien - Brazil). For each taxon the complete systematic hierarchy is indexed, so that also these higher taxa at any level can be searched (example: the search pattern "Annonaceae Gottsberger Brazil" gives all objects, that had been collected by  Gottsberger in Brazil and that has a determination of Annonaceae or any taxon below this family)

The collection search is available in a simple and an expert mode. The search result can be displayed in a short and in a detailed list. For the simple mode  the short list is preset, for the expert mode  the detailed list.

The search can also be carried out in such a way that the query fields are omitted in the result lists. By doing so, for example, type lists or lists of collection items of a certain taxon can be dynamically created for a certain institute.

At the end of the result the links are shown to get the collections displayed in the map created by the web-service of GBIF-Canada and of Google local™.

Technique of indexing

For each collection item an appropriate word list (see illustration) from the data listed above is created. This word list is stored in a separate table in a field of the type "CLOB" (character large object). ORACLE InterMedia Text™ then provides the actual full text index from these lists. At present the index is calculated once a week which takes about up to 4-5 hours.

The marking of the data in the word list in so called "sections" allows for a direct search for certain data in the expert mode (e.g. taxon, collector, ...).

You can  incorporate the collection search presented here in your own web site - just like the SysTax "taxon browser" and the "quick-search".

Search sample

Abbreviation (wildcard) is a "%" or "*".

The following search patterns can be used :

Parameter and their use

Query field for simple search:

Search field for the expert mode:

Further options for both query modes (defaults underlined):

Options for formatting the result lists (default underlined):

SysTax collection search on your own web-site

You can incorporate the collection search into your web site as follows (shown for the GBIF Vertebrata web site) :

Installation of a simple suchfeldes into arbitrary web pages

The following HTML code gives you a simple query field in your web page.  The result is displayed in simple form without query fields (dsearch="no") in English language.

<form action="http://www.biologie.uni "method="GET" target="_blank">
<input type="text "size="30" name="query "value="SysTax portal" onfocus="this.value = ' ';">
<inputs type="hidden "name="dsearch" value="no">
<input type="submit "value="go" name="submit">
</form >

It will look like this:


Link to lists using the parameters

You can display a various lists of collection items by suppressing the display of the search fields using the parameters listed above.

Here as an example the list of  "all types of birds from the ZFMK in short display mode and in English language":

http://www.biologie.uni bin/portal/

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