Difference between revisions of "Corpus Create Annotation Schema By Chemical Tagger"
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The NER operation will take a few minutes or hours depending on the number of documents and document size. | The NER operation will take a few minutes or hours depending on the number of documents and document size. | ||
− | When the process ends, a new '''NER Process''' object will be added to the clipboard and be visualized through the [[Corpora_Load_Corpus|''Corpus Process View'']]. | + | When the process ends, a new '''NER Process''' object will be added to the clipboard and can be visualized through the [[Corpora_Load_Corpus|''Corpus Process View'']]. |
Revision as of 11:00, 18 January 2013
One of the options for performing NER is the use of the Chemical Tagger NER algorithm (for more details please visit http://gate.ac.uk/sale/tao/splitch21.html#sec:parsers:chemistrytagger ).
Selecting the Corpus object on the clipboard, you should right click over it an choose Corpus -> NER -> Chemistry Tagger
A GUI will be presented, where you can select tagger sources:
- Ion(e.g. Fe3+, Cl-).
- Compound formulas (e.g. SO2, H2O, H2SO4 ...).
- Element names and symbols (e.g. Sodium and Na).
Pressing Ok the operation will be launched and a progress window will be shown, indicating the execution of the operation and estimate time left.
The NER operation will take a few minutes or hours depending on the number of documents and document size.
When the process ends, a new NER Process object will be added to the clipboard and can be visualized through the Corpus Process View.