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RE: SSN-XG Meeting Minutes 10 March 2010

From: <Holger.Neuhaus@csiro.au>
Date: Thu, 11 Mar 2010 09:20:54 +1100
To: <fla@tid.es>
CC: <public-xg-ssn@w3.org>
Message-ID: <93B651F999304D41AF520188488E101F1507D75D35@exvic-mbx03.nexus.csiro.au>
Hmmm,

I guess that there are several possibilities.

-          There are sensors that measure height, and for those sensors there will be some accuracy in the datasheet probably depending on height.
-          The height of a radiation measurement may be of importance with accordance to some guidelines. In that case, the sensor position/location should be sufficient
-          In other cases, a domain expert may know from experience that "those type of sensor has a worse accuracy when it's too close to power lines" - for those, 'location' is more of a provenance/context issue and can only be resolved with additional information. It might be an option to include domain experts' opinions like this in the QualityOfMeasurement (or QualityOfInformation, as Payam suggested) in the sensor description, but that may open that proverbial can of worms...

...hope this makes sense.

Cheers,
Holger

________________________________
From: FERNANDO LOPEZ AGUILAR [mailto:fla@tid.es]
Sent: Thursday, 11 March 2010 8:53 AM
To: Neuhaus, Holger (ICT Centre, Hobart)
Subject: Re: SSN-XG Meeting Minutes 10 March 2010

thanks for your comment, the next time I'll try to connect to IRC and make it.

Yes, barometric pressure or wind are one examples in which the height can influence the measurement but also we have to consirder the location if it is obtained with barometric device, radiation incidence, and so on.

Fernando

El 10/03/2010, a las 22:36, <Holger.Neuhaus@csiro.au<mailto:Holger.Neuhaus@csiro.au>> escribió:


Hi Fernando,

Thank you for attending.

We sometimes have problems due to echoes from all over the world, and today it was your turn ;-) That's why I had to mute you (btw, you're Susana in the log...). If people want to talk during the meeting, they have to enter

+q

in the IRC. If I give the word to people that I had to mute, I unmute them at that time. Most of the people use the mute button on their phone and unmute themselves when they want to say something.

Concerning your question: do you have an example where location affects the observation directly? When you talk about height then what actually influences the measurement would be something like the barometric pressure or wind etc., right?

Cheers,
Holger

________________________________
From: FERNANDO LOPEZ AGUILAR [mailto:fla@tid.es]
Sent: Thursday, 11 March 2010 8:19 AM
To: Neuhaus, Holger (ICT Centre, Hobart)
Cc: public-xg-ssn@w3.org<mailto:public-xg-ssn@w3.org>
Subject: Re: SSN-XG Meeting Minutes 10 March 2010

thanks Holger,

Just two things, I can see that you cannot hear me during the meeting and also I am not in the attendees.

I wanted to ask a question when you talk about Accuracy.  I think that the condition should include the location, I know that this information is included in the ontology of data or sensor (i think) but specially height position can affect the accuracy of the O&M, how can manage this problems?

Fernando


El 10/03/2010, a las 22:06, <Holger.Neuhaus@csiro.au<mailto:Holger.Neuhaus@csiro.au>> escribió:



Hi all,

Thank you for attending the telephone conference and for the good discussion.
The minutes can be found here: http://www.w3.org/2010/03/10-ssn-minutes.html
Summary of Action Items
[NEW] ACTION: Michael to put Modelling of Accuracy issue in Issue Tracker [recorded in http://www.w3.org/2010/03/10-ssn-minutes.html#action01]
[NEW] ACTION: Kerry to present observation record and device next week [recorded in http://www.w3.org/2010/03/10-ssn-minutes.html#action02]




I will be on leave for the next 4 weeks. Kerry will chair the meetings during my absence. Please be aware of the changes in Daylight Saving Time:

 *   US: DST Begins 2 a.m. (Second Sunday in March) 2010 March 14
 *   Europe: Start: Last Sunday in March (28) at 1 am UTC
 *   Australia: ends at 2 am Eastern Standard Time (3am summer time) on the first Sunday in April (4)

...and watch out for the new timeslots for our meetings (after March), once they have been changed - Kerry will keep you posted.

See you in 5 weeks!

Cheers,
Holger


Dr. Holger Neuhaus
Postdoctoral Fellow
Tasmanian ICT Centre
CSIRO

Phone: +61 3 6232 5547 | Fax: +61 3 6232 5000
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Received on Wednesday, 10 March 2010 22:21:35 UTC

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