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Re: [science-iwg] Debrief Maritime Analysis Workbench

Ian,

 

The concept of Dataset in DAWNSci attempts to provide the numerical things that you mention for n-Dimensions. It took many man-years to develop and has many mathematical operations supported, also reads many file formats. It is available as a low dependency eclipse plugins and is at incubator stage, EPL licensed. The units are not currently automatically stored from operations in the metadata as you suggest, I added a possible example of how we could perhaps change things to support it using jscience. The attached tutorial deals with getting to grips with it (checking out from eclipse incubator).

 

Sincerely,

 

Matt Gerring

Diamond Light Source

 

 

I would have thought that if a JScience part of metadata is declared, we could potentially do the math of the unit along with the array. For instance:

 

DoubleDataset distance = new DoubleDataset(...); // nD!

Distance.addMetadata(new UnitMetadata(SI.METER));

 

DoubleDataset time = new DoubleDataset(...); // nD; Normally one would load this with the loader

time.addMetadata(new UnitMetadata (SI.SECOND));

 

IDataset speed = Maths.derivative(distance, time, 0); // deltas are required for speed

// speed could now have the UnitMetadata set to SI.METERS_PER_SECOND

 

 

 

 

-----Original Message-----
From: science-iwg-bounces@xxxxxxxxxxx [mailto:science-iwg-bounces@xxxxxxxxxxx] On Behalf Of Ian Mayo
Sent: 20 July 2015 10:12
To: Jay Jay Billings
Cc: Science Industry Working Group
Subject: Re: [science-iwg] Debrief Maritime Analysis Workbench

 

Hi all,

thanks for taking an interest.   Whilst Debrief is relatively mature

(20 years old, sitting on Eclipse since 2005) - it really is a niche application, focussed on narrow analysis problem (the "forensic analysis of trials and exercises by ships, submarines & helicopters at sea").  But,  if you're interested in investigating how Debrief has approached some common analysis/replay challenges you could learn quite a lot in a short time by watching the two YouTube videos linked from the home page (http://www.debrief.info).

 

My approach to Jay was to determine if the community could/should have a role in a standalone capability I'll be developing for analysis of ad-hoc collections of time-series data.  I'm hoping that by making the software "dimensionally-aware" it can logically offer sensible operations to selected data series (adding two length series to get another length series, dividing a length series by a time series to get a speed series).  I'll then be incorporating the capability into Debrief for my analysts - but think the analysis capability is most likely to "have legs" if it's developed outside the Debrief application with suitably accommodating license(s).

 

After learning more about your community I can see there is already the DAWN environment.  The Triquetrum project also appears to provide a great set of capabilities.  So, it appears I should persevere with "prior works" research before re-inventing my wheel.

 

Thanks in advance for any steering/feedback you're able to offer.

 

cheers,

Ian

 

 

On 17 July 2015 at 14:19, Jay Jay Billings <jayjaybillings@xxxxxxxxx> wrote:

> Everyone,

> 

> Please let me introduce you to Ian Mayo and his product, Debrief

> 

> http://debrief.info/get-debrief/

> 

> Debrief if a Maritime Analysis Workbench based on the Eclipse RCP. Ian

> sent me some information about it this morning and it looks very cool!

> 

> Jay

> 

> --

> Jay Jay Billings

> Oak Ridge National Laboratory

> Twitter Handle: @jayjaybillings

 

 

 

--

Ian Mayo

Deep Blue C Technology Ltd

- New technologies, implemented well

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Attachment: DAWN_Developer_Training_v1.1.pdf
Description: DAWN_Developer_Training_v1.1.pdf


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