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Date: Thu, 31 Oct 1996 11:36:23 +0100
From: Philippe VILLARD <philippe.villard@rp*.fr*>
Organization: Rhtne-Poulenc Ind / CRIT.
To: techdiver@terra.net
Cc: chris@ma*.fr*.co*
Subject: Databases (Was: Deep Stops)
Chris Parrett wrote:
> <snip>
>
> No cynicism at all.
> The issue is not whether or not we could force the program to insert the
> user requested Deep Stops, but in how we make the rest of hte model handle
> the extra events in the dive profile timeline.
> Abyss is unique in that it runs all of the tissue calculations in real time.
> Ever second of the dive a computation is made to determine a host of
> variables and all of them are caccounted for in the model. If I begin
> inserting points that are (artificial) to the model itself we can end up in
> a bad situation in a real hurry. What we need is for the internal model and

Sure. Especialy when you consider repetitive dives. Slow compartiments get
slightly more loaded with deep stops.  

> the math we have created to call for the neccessity of these Deep Stops to
> begin with. And that is jsut what we are doing by working on this new Bubble

What kind of validation work are you going to do on this ?
Do you have access to an experimental database of recorded dive profiles and
resulting DCS hits ? 
I'm sure you don't rely on a warm fuzzy feeling to validate that kind of 
deep change to the underlying model ...

Modern models are "evaluated on a statistical ground". Does anyone know what 
databases exists, and even if some are public domain ?
I'd love to get my hands on such data.

PhV.

--- philippe.villard@rp*.fr*;
"The only difference between       | All opinions expressed here are
 men and children is the cost      | my very own and do not (necessarily)
 of their toys".                   | reflect my employer's position.

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