Re: Semantics in the Web of Things

> I afraid we need to start from 100 steps behind.
> How many IoT products are designed uponwell-defined type system?
> e.g. "sensor_data: {temperature: 38}"
> is this hot or cold? :-) I guess U.S. people think it's cold. I
> personally think it's extremely hot.

This is exactly my thesis topic: How to reason about cross-domain sensor 
data?
It depends on the context (and of course the units):
- In the health domain we can deduce if you practice sport or if you 
have the fever and according to the location (bedroom or gym room)
- In the weather domain you can deduce if it is hot or cold and the season
- In the domotic domain, you can detect that the temperature is abnormal.

All these rules and concepts are already implemented in ontologies by 
domain experts. We referenced more 170 ontology-based projects in 
various domains (transport, weather, tourism, health, home, etc.):
http://www.sensormeasurement.appspot.com/?p=ontologies

To combine all these domain knowledge together is not an easy task. For 
example, for rules they all use the Semantic Web Rule Language (SWRL) 
language, but they are still different implementations according to the 
software used (e.g., Protege, Jena, Racer, Pellet, Jess).

You can find additional information related to the "Semantic Web of 
Thing" here:
http://www.sensormeasurement.appspot.com/

Best Regards,
>
> Personally, I'm working on EXI to introduce well-typed values (e.g.
> tagged by schema-defined elements). And SEP2 devices (IEEE21451.5) are
> using EXI and well-defined schemas, so I think that is a step towards
> 'semantic IoT'.
>
> Regaqrds,
>
> Yusuke
>
>
> (2014-02-20 03:08), Kristian Alexander wrote:
>> I often see writings by academics claiming that the semantic web model
>> and its tools are ideally suited to solving the problems of the
>> interoperability of things.
>>
>> For example, here’s one such piece of writing on the topic:
>> */"It is estimated that there will be around 25 billion devices
>> connected to the Internet by 2015 and 50 billion by 2020. Such a
>> stunning number of highly distributed heterogeneous devices will need
>> to be interconnected and communicate in different scenarios
>> anonymously. This implies that providing interoperability among
>> "Things" on the IoT is one of the most fundamental requirements to
>> support object addressing, tracking, and discovery as well as
>> information representation, storage, and exchange. The suite of
>> technologies developed in the Semantic Web, such as ontologies,
>> semantic annotation, Linked Data, and semantic Web services can be
>> uses as principle solutions for the purpose of realizing the IoT."/*
>> -- Semantics for the Internet of Things: early progress and back to
>> the future, Section 2
>> <http://knoesis.org/library/download/IJSWIS_SemIoT.pdf>
>>
>> While I see the point and tend to agree with it, I have to wonder how
>> many of the really popular IoT products on the market actually have
>> implemented any sort of semantic web technologies (ontologies, RDF
>> data, an RDF triplestore, etc).
>>
>> So, what products do you know of that have successfully implemented
>> those tools in their things?
>>
>>
>> Best Regards,
>>
>> Kristian Alexander
>
>


-- 
Amelie Gyrard
Ph.D. Student
EURECOM - Mobile Communications Dept.
Add:   450 route des Chappes, Campus Sophia Tech, 06410 Biot
Email: Amelie.Gyrard@eurecom.fr
Web:   http://www.eurecom.fr/en/people/gyrard-amelie
Project (Semantic Web of Things): http://www.sensormeasurement.appspot.com/
Tel:   +33 4 93 00 81 92
Office: #420

Received on Thursday, 20 February 2014 11:33:43 UTC