Hi,

I implemented something. If you haven't seen it yet, take a look at the new HtmlConverterXmlTest for exmaples.

Best,

Peter

Am 14.03.2015 um 14:49 schrieb Mario Gazzo:
No problem. You can contact me anytime in case you have additional questions.

On 14 Mar 2015, at 14:34 , Peter Klügl <pklu...@uni-wuerzburg.de> wrote:

Hi,



thanks for the issue and sorry for the delayed response. I did not yet find the 
time to look into it, but I will the next days.

Best,

Peter

Am 13.03.2015 um 23:51 schrieb Mario Gazzo:
The issue has now been created:

https://issues.apache.org/jira/browse/UIMA-4286 
<https://issues.apache.org/jira/browse/UIMA-4286>


On 11 Mar 2015, at 14:47 , Mario Gazzo <mario.ga...@gmail.com> wrote:

Thanks, I understand the choices now. I would also probably prefer to use the 
document annotation if no text content is associated with the tag. However, 
ideally I would prefer that tag annotations get the offsets of content that is 
within their scope but otherwise get offsets of content within their closest 
shared ancestor element. Ultimately this could end up being the document 
annotation. E.g.

<journal-meta>
    <journal-id journal-id-type="nlm-ta">Environ Health Perspect</journal-id>
    <journal-title>Environmental Health Perspectives</journal-title>
    <issn pub-type="ppub">0091-6765</issn>
    <publisher>
        <publisher-name>National Institute of Environmental Health 
Sciences</publisher-name>
    </publisher>
</journal-meta>

I would here expect journal-meta to have the offsets of all content within its 
scope, which in the converted view of my experiments gets combined to the 
following “Environ Health PerspectEnvironmental Health 
Perspectives0091-6765National Institute of Environmental Health Sciences”. This 
works as expected when I just disable the “inBody”-flag of the 
HtmlConverterVisitor except that there is no clear separation between the 
content elements any longer, which is why I would like to have a sentence 
separator like “. ” between them so that I instead get: “Environ Health 
Perspect. Environmental Health Perspectives. 0091-6765. National Institute of 
Environmental Health Sciences.”. The dot separators should then of course not 
be included in the converters offsets since they are not part of the original 
text.

Additionally there might be a case where a meta tag doesn’t have any content 
within its scope but it contains attribute values:

<Parent>
        <Child1 attribute=“someValue” />
        <Child2/>Some content.</Child2>
</Parent>

In this case I would prefer that Child1 has the same offsets as Child2 since 
the tag is most closely related to that content. In case there is no content 
within the scope of its parent then I would find the first ancestor that 
contains content within its scope and use that offset although this choice is 
questionable. I haven’t a good example of this case though so I presume they 
are in reality rare.

That said, the latter is more complicated to implement, so I would be happy if 
I could just easily turn off the “inBody”-test in the HtmlConverterVisitor and 
have some way to add content separation between tags outside body without 
resorting to code modifications.

Hope this feedback was helpful.

Your time is much appreciated, thanks.


On 09 Mar 2015, at 16:56 , Jens Grivolla <j+...@grivolla.net> wrote:

Hi Peter, while I don't think I will be using the HtmlConverter right away,
I would vote for using the length of the document annotation for
annotations that relate to the whole document (such as metadata).  That
makes them show up nicely in the CasEditor/Viewer and you could maintain it
in all segments when you split a CAS (e.g. with something based on the
SimpleTextSegmenter example).

-- Jens

On Sat, Mar 7, 2015 at 5:33 PM, Peter Klügl <pklu...@uni-wuerzburg.de>
wrote:

Hi,

there is no way yet to customize this behavior. The HtmlConverter only
retains annotation of a length > 0 since annoations with length == 0 are
rather problematic and should be avoided.

I can add a configuration parameter for keeping these annoations if you
want (best open an issue for it). What should be the offsets of the
annotations for elements in the head of the html document? 0, those of the
first token or those of the document annotation?

Best,

Peter


Am 06.03.2015 um 14:00 schrieb Mario Gazzo:

We conducted some experiments with both the HtmlAnnotator and the
HtmlConverter but we ran into an issue with the converter. It appears to
only convert tag annotations that surround or are inside the body tag.
Metadata elements like citations are ignored. The only way to get around
this seems to be by forking and modifying the codebase, which I like to
avoid. Both modules seem otherwise very useful to us but I am looking for a
better approach to solve this issue. Is there some way to customise this
behaviour without code modifications?

Your input is appreciated, thanks.


On 18 Feb 2015, at 23:03 , Mario Gazzo <mario.ga...@gmail.com> wrote:
Thanks. Looks interesting, seems that it could fit our use case. We will
have a closer look at it.

On 18 Feb 2015, at 21:58 , Peter Klügl <pklu...@uni-wuerzburg.de>
wrote:

Hi,

you might want to take a look at two analysis engines of UIMA Ruta:
HtmlAnnotator and HtmlConverter [1]

The former one creates annotations for html element and therefore also
for xml tags. The latter one creates a new view with only the plain text
and adds existing annotations while adapting their offsets to the new
document.

Best,

Peter

[1] http://uima.apache.org/d/ruta-current/tools.ruta.book.html#
ugr.tools.ruta.ae.html

Am 18.02.2015 um 21:46 schrieb Mario Gazzo:

We are starting to use the UIMA framework for NL processing article
text, which is usually stored with metadata in some XML format. We need to
extract text elements to be processed by various NL analysis engines that
only work with pure text but we also need to keep track of the formatting
information related to the processed text. It is in general also valuable
for us to be able to track every annotation back to the original XML to
maintain provenance. Before embarking on this I like to validate our
approach with more experienced users since this is the first application we
are building with UIMA.

In the first step we would annotate every important element of the XML
including formatting elements in the body. We maintain some DOM-like
relationships between the body text and formatting annotations so that text
formatting can be reproduced later with NLP annotations in some article
viewer.

Next we would in another AE produce a pure text view of the text
annotations in the XML view that need to be NL analysed. In this new text
view we would annotate the different text elements with references back to
their counterpart in the original XML view so that we can trace back
positions in the original XML and the formatting relations. This of course
will require mapping NLP annotation offsets in the text view back to the
XML view but the information should then be there to make this possible.

This approach requires somewhat more handcrafted book keeping than we
initially hoped would be necessary. We haven’t been able to find any
examples of how this is usually done and the UIMA docs are vague regarding
managing this kind of relationships across views. We would therefore really
like to know if there is a simpler and better approach.

Any feedback is greatly appreciated. Thanks.


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