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Re: DBpedia-based entity recognition service / tool?

From: Davide Palmisano <davide@asemantics.com>
Date: Tue, 2 Feb 2010 15:24:51 +0100
Message-ID: <f59b5c6e1002020624w2c62993dw54c324b4c75ba442@mail.gmail.com>
To: Matthias Samwald <samwald@gmx.at>
Cc: public-lod@w3.org
Hi Matthias,

this is quite strange. To be honest, they are currently working on
tuning Lupedia. I'm sure your mail could be useful them. I'm
forwarding it to them.

BTW: and what about http://www.alchemyapi.com ? have you tried it?

Davide

On Tue, Feb 2, 2010 at 3:21 PM, Matthias Samwald <samwald@gmx.at> wrote:
> Hi David,
>
> Thanks for the hint. I remember trying LUPedia a few months ago -- now it
> has a defined API, which is a good addition. Unfortunately, the quality of
> results could be improved quite a bit.
>
> Here is a scientific statement that I would like to see annotated:
> "Albizia julibrissin has anxiolytic-like effects that are mediated by the
> changes of the serotonergic nervous system, especially 5-HT1A receptors."
>
> LUPedia is unable to identify any entities in this string, although DBpedia
> would contain them.
> http://dbpedia.org/resource/Albizia_julibrissin
> http://dbpedia.org/resource/Anxiolytic
> http://dbpedia.org/page/5-HT1A_receptor
>
> et cetera.
>
> It seems to recognize person names, as for the string "Michael Jackson", the
> following URIs are returned:
>
> # http://dbpedia.org/resource/Parademon
> # http://dbpedia.org/resource/Michael_Jackson
>
> The first result is a bit puzzling (DBpedia tells me that 'In the DC
> Universe, Parademons are monstrous shock troops of Apokolips used by
> Darkseid to maintain the order of Apokolips.').
>
> LUPedia does not seem to do any kind of stemming either, as submitting the
> string "Michael Jacksons" reduces the list of extracted URIs to:
>
> # http://dbpedia.org/resource/Parademon
>
> LUPedia in its current form will not perform too well in practical settings.
>
> Cheers,
> Matthias Samwald
>
> --------------------------------------------------
> From: "Davide Palmisano" <davide@asemantics.com>
> Sent: Tuesday, February 02, 2010 2:27 PM
> To: "Matthias Samwald" <samwald@gmx.at>
> Cc: <public-lod@w3.org>
> Subject: Re: DBpedia-based entity recognition service / tool?
>
>> Hi Matthias,
>>
>> have you ever tried this http://lupedia.ontotext.com/ ? Perhaps it may
>> help.
>>
>> cheers,
>>
>> Davide
>>
>> On Tue, Feb 2, 2010 at 1:26 PM, Matthias Samwald <samwald@gmx.at> wrote:
>>>
>>> Dear LOD community,
>>>
>>> I would be glad to hear your advice on how to best accomplish a simple
>>> task:
>>> extracting DBpedia entities (identified with DBpedia URIs) from a string
>>> of
>>> text. With good accuracy and recall, possibly with some options to
>>> constraint the recognized entities to some subset of DBpedia, based on
>>> categories. The tool or service should be performant enough to process
>>> large
>>> numbers of strings in a reasonable amount of time.
>>> Given the prolific creation of tiny tools and services in this community
>>> I
>>> am puzzled about my inability to find anything that accomplishes this
>>> task.
>>> Could you point me to something like that? Are there tools/services for
>>> Wikipedia that I could use?
>>> Zemanta seems to be too much geared towards 'enhanced blogging', while
>>> OpenCalais does not return Wikipedia/DBpedia identifiers. Please correct
>>> me
>>> if I am wrong.
>>>
>>> Cheers,
>>> Matthias
>>>
>>>
>
Received on Tuesday, 2 February 2010 14:25:25 UTC

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