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From Ekaterina Buyko <ekaterina.bu...@uni-jena.de>
Subject Re: Iterators in CAS
Date Fri, 12 Oct 2007 10:50:22 GMT
Thank you very much!

Ekaterina

Michael Baessler schrieb:
> That's right!
> 
> -- Michael
> 
> Ekaterina Buyko wrote:
>> Hi Michael,
>>
>> I think it is exatly what I need.
>> If I have annotations [np [token1] [token2] [token3]], your method 
>> would give me for all tokens the NP, right?
>>
>> Best regards
>>
>> Ekaterina
>>
>>
>>
>>
>>
>> Michael Baessler schrieb:
>>> Hi Ekaterina,
>>>
>>> I had the similar problem when implementing the 
>>> RegularExpressionAnnotator - how to find the covering annotation of a 
>>> certain type for my current FS.
>>>
>>> The code is checked in to the SVN at:
>>> http://svn.apache.org/repos/asf/incubator/uima/sandbox/trunk/RegularExpressionAnnotator/src/main/java/org/apache/uima/annotator/regex/impl/RegExAnnotator.java

>>>
>>>
>>> The method is called:
>>> findCoverFS(CAS aCAS, AnnotationFS annot, Type coverFsType)
>>>
>>> If this is exactly what you need, we may can discuss to move this to 
>>> the core framework API.
>>>
>>> Hope that helps.
>>>
>>> -- Michael
>>>
>>> Ekaterina Buyko wrote:
>>>> Hi all!
>>>>
>>>> In UIMA 2.1 it is possible to create a sub-iterator in order to 
>>>> iterate over annotations which are within the begin-end span of the 
>>>> selected type.
>>>>
>>>> For example:
>>>>
>>>> AnnotationIndex sentenceIndex = (AnnotationIndex) aJCas 
>>>> .getJFSIndexRepository().getAnnotationIndex(Sentence.type);
>>>>
>>>> AnnotationIndex tokenIndex = (AnnotationIndex) aJCas
>>>>                .getJFSIndexRepository().getAnnotationIndex(Token.type);
>>>>
>>>>        // iterate over Sentences
>>>>        FSIterator sentenceIterator = sentenceIndex.iterator();
>>>>        while (sentenceIterator.hasNext()) {
>>>>
>>>>            Sentence sentence = (Sentence) sentenceIterator.next();
>>>>
>>>>            // iterate over Tokens
>>>>            FSIterator tokenIterator = tokenIndex.subiterator(sentence);
>>>>
>>>>
>>>> I would like to have a more extended functionality. I need to know 
>>>> the annotations which are in the span of begin-end of the selected 
>>>> annotation type. These annotations can overlap the span of the 
>>>> selected type.
>>>>
>>>> For example noun phrases. If I iterate over tokens, I would like to 
>>>> know, if this token is inside a noun phrase or not. Now, I am 
>>>> working with Hashtables. But I am looking for an other solution.
>>>>
>>>> How could I solve this problem?
>>>>
>>>> Bets regards
>>>>
>>>> Ekaterina
>>>>
>>>>
>>>>
>>>>
>>>
>>
> 


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