Results Analysis

Overview

For checking to see the number of hits within the map bounds I did the following:

1. Run a query using 'VARS Query'
2. Save the results
3. Use vdm_bounds_test.m in matlab

   • data = vdm_bounds_test('/Users/brian/Desktop/vars-sediment.txt', ...
     '/Users/brian/workspace/vdm-tools/src/test/resources/monterey_hrbath.nc');

I read the default VARS output into Matlab using code like this:

[associations, conceptNames, depths, imageUrls, latitudes, longitudes, ...
    observationIds, recordedDates, timecodes, videoArchiveNames] = textread( ...
    varsfile, '%s%s%s%s%s%s%s%s%s%s', ...
    'headerlines', 10, 'delimiter', '\t');

depths = str2double(depths);
latitudes = str2double(latitudes);
longitudes = str2double(longitudes);

2008-02-19

Concept (and descendants)	VARS	VARS_Benthic	VARS within map bounds	VARS within map bounds and <= 40m altitude	Notes
anthomastus	21613	11998	16659	12030
Grimpoteuthis	140	89	110	89
pannychia	23449	12030	15606	12038
paragorgia	5649	3219	5026	3224
Plantae	14857	11764	12281	11760
Psolus	22826	15051	19220	15065
rathbunaster	31766	20501	23707	20825
Seep	1734	705	1332	704	Altitudes look good. Why the big discrepancy between within bounds and those <= 40m?
Sediment	39699	20626	23238	20620

These values were determined using data from the master VARS database and this script. In theory, the values in 'VARS_Benthic' and 'VARS within map bounds and <= 40m altitude' should match. Some variation can be expected since some hits are due to matching associations rather than observations.

Data used is in the zip file here.

Problems with seep data The seep data is giving troublesome altitude values. I set all merges done with the previous Jython based code to be remerged tonight to see if that fixes some probematic depth values. I used this snippet to do that: UPDATE EXPDMergeStatus SET IsMerged = 0 WHERE StatusMessage NOT LIKE '%pragmatic%' The next step is to rebuild the VARS_Benthic database and check the results.

2008-02-19

Brian Schlining I remerged all dives that had used the old Jython-based merge. It did not significantly change the results (see table below)

vdm_bounds_test.m (application/octet-stream)
vdm_bounds_test.m (application/octet-stream)
VARS-testdata-20080219.zip (application/zip)
VARS-testdata-20080219.zip (application/zip)