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Re: [LD4LT] annotations on the web: quick survey

From: Sebastian Hellmann <hellmann@informatik.uni-leipzig.de>
Date: Thu, 11 Jul 2019 10:37:31 +0200
To: Christian Chiarcos <christian.chiarcos@web.de>, public-ld4lt@w3.org
Message-ID: <37449598-8900-50fa-fad8-fcb63711275f@informatik.uni-leipzig.de>
Hi Christian,

NIF is being worked on, on a different level. Bascially, there are two 

1. Linked Data as such is not not suitable for ontologies. Versioning is 
missing and we never managed to sync versions with the Web. The problem 
here are the HTTP identifiers. LD design was never discussed or 
standardized. I have the feeling that users want something else.

2. We are still working on this 
http://www.lider-project.eu/sites/default/files/D3.1.2-v2.0.pdf section 
3 Reference Architecture workflow in a vertical example and made good 
progress there with the databus:

See https://databus.dbpedia.org/dbpedia/mappings/mappingbased-literals/

You can either:

a. download the free data and convert and load it automatically in e.g. 
virtuoso http://dev.dbpedia.org/Data#example-application-virtuoso-docker

-> this is either for yourself or to republish data or to merchandise 
commercial services

b. choose any of the Shared Services (free)

c. Buy commercial services with SLA

3. Ok you have https://www.pret-a-llod.eu/ now, but let me give you a 
sustainability definition:  "If it is offline, you loose something"

In research you normally move on after a while, since there are new 
exiting projects. So the old stuff being down doesn't hurt. Also there 
is another aspect:

Sustainability should include enough resources to react to new arising 
needs AND fight deprecation/rot . It is not enough to get some 
library-style hosting.

Since I seem to have switched my major to economics now, I can tell you 
direct business opportunities how to drive NIF-Based services. I am not 
doing it myself, because we are building the plattform economy and 
infrastructure to do so. The models we have are totally synergistic to 
open data / open source .

As a summary: NIF is not sustainable at the moment and you can take 
whatever you find like with any open data/source project. It could be, 
however, that you can buy a lot of NIF-based services in the future, 
.e.g there are 3-4 potential commercial providers among DBpedia members 
plus we have the famous DBpedia spotlight. But there is nothing concrete 
unless somebody starts building a commercial ecosystem.

All the best,


On 11.07.19 09:46, Christian Chiarcos wrote:
> Dear all,
> in the last decade, we have seen the emergence of several 
> specifications for creating and sharing (NLP) annotations on the web 
> in a linked-data compliant fashion, most importantly,
> - NIF 2.0 (https://persistence.uni-leipzig.org/nlp2rdf/, stable),
> - NIF 2.1 (https://nif.readthedocs.io/en/latest/, experimental) and
> - Web Annotation (https://www.w3.org/TR/annotation-model/, standardized).
> In the context of the Pret-a-LLOD project 
> (https://www.pret-a-llod.eu/), we are currently developing a toolbox 
> for the transformation of legacy annotations, resp., the output of 
> serveral NLP tools, and we need to make some strategic decisions to 
> what extent to support, and possibly, to extend any of these vocabularies.
> In my personal impression, Web Annotation gained a lot of ground in 
> the last years, and beyond BioNL (where it emerged), it is now much 
> used in Digital Humanities, for example. My feeling is that NIF 
> (albeit there *are* external providers of NIF data) has been somewhat 
> less successful in broadening its range of users since 2015, but I 
> might miss something.
> I understand that NIF 2.0/2.1 are to some extent outcomes of the 
> activities of this group, so I was wondering how much it is still 
> being used by the people in this community. In particular, I would 
> like to know:
> - Do you run or know about WA compliant web services (public or 
> in-house)?
> - Do you run or know about any NIF 2.0 web services (public or in-house)?
> - Do you run or know about any NIF web services that actively use the 
> NIF 2.1 extensions?
> - Do you provide or know about WA-compliant data sets available on the 
> web under an open license?
> - Do you provide or know about NIF 2.0-compliant data available on the 
> web under an open license?
> - Do you provide or know about any NIF data sets that actively use the 
> NIF 2.1 extensions?
> - Do you provide web services or data sets that use other 
> LD-compliant* vocabularies for linguistic annotations (e.g., the LAPPS 
> Interchange Format)?
> - For resources/webservices developed since 2014: Do you provide web 
> services or interlinked data sets using other, non-LD compliant 
> vocabularies for linguistic annotations (e.g., Concrete, or JSON-NLP)? 
> If so, what has been your motivation for doing so? If the reason was 
> the range of available tools, which functionalities were most important?
> * By LD compliancy I mean full-fledged RDF in any serialization (incl. 
> CSV2RDF, JSON-LD or access via a SPARQL end point), not just the use 
> of URIs (which is far too common to count).
> Please feel free to respond via the mailing list or to contact me 
> privately. I plan to post a summary of private responses in that case. 
> Note that this is not about abandoning NIF, but about exporing its 
> future relationship and possible synergies with WebAnnotation and 
> other vocabularies.
> Thanks a lot,
> Christian
> -- 
> Christian Chiarcos
> Applied Computational Linguistics
> Johann Wolfgang Goethe Universität Frankfurt a. M.
> 60054 Frankfurt am Main, Germany
> office: Robert-Mayer-Str. 11-15, room 107
> mail: chiarcos@informatik.uni-frankfurt.de 
> <mailto:chiarcos@informatik.uni-frankfurt.de>
> web: http://acoli.cs.uni-frankfurt.de
> tel: +49-(0)69-798-22463
> fax: +49-(0)69-798-28931
All the best,
Sebastian Hellmann

Director of Knowledge Integration and Linked Data Technologies (KILT) 
Competence Center
at the Institute for Applied Informatics (InfAI) at Leipzig University
Executive Director of the DBpedia Association
Projects: http://dbpedia.org, http://nlp2rdf.org, 
http://linguistics.okfn.org, https://www.w3.org/community/ld4lt 
Homepage: http://aksw.org/SebastianHellmann
Research Group: http://aksw.org
Received on Thursday, 11 July 2019 08:38:37 UTC

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