the class layerWholeL2Normalize not have the attribute 'weights' about netvlad

[Relja]

Details please.

1. How to reproduce? What network, what version of MatConvNet?
2. Full error text / back trace

[Relja]

The problem is due to the latest version of MatConvNet (1.0-beta20) which introduced an error, thanks for pointing this out.
I have raised this issue with the MatConvNet team ( vlfeat/matconvnet#552 ) and am waiting to see what they do / how they fix it.

In the mean time, you have two options:

1. Use a slightly older version of MatConvNet (1.0-beta18 or 1.0-beta19)

2. Apply the following changes which seem to fix the problem:

a) in MatConvNet matlab/simplenn/vl_simplenn_tidy.m change line 50 if ~isfield(layer, 'weights') to if ~isfield(layer, 'weights') && ~isprop(layer, 'weights'), and line 106 if ~isfield(layer, defaults{i}) to if ~isfield(layer, defaults{i}) && ~isprop(layer, defaults{i})

b) In NetVLAD code, add weights= {} to files layerWholeL2Normalize.m, layerTotalAvg.m, layerTotalMax.m just after the line precious= false

c) in NetVLAD code, file netPrepareForTrain, change line 6 if i>=backPropToLayer && isFieldOrProp(net.layers{i}, 'weights') to if i>=backPropToLayer && isFieldOrProp(net.layers{i}, 'weights') && ~isempty(net.layers{i}.weights)

[zongbingwang]

Sorry for I did not give the details.

1. setting:
   NetVLAD: Version 1.03 (04 Mar 2016)
   relja_matlab: Version 1.02 (29 Feb 2016)
   MatConvNet: 1.0-beta20

2. Error:
   There are some errors when I use the function "relja_simplenn_tidy".

   Ther information:

    '''''''''''''''''''''''''''''''''''

    No public field weights exists for class layerWholeL2Normalize.

Error in vl_simplenn_tidy (line 51)
    layer.weights = {};

Error in relja_simplenn_tidy (line 25)
    net = vl_simplenn_tidy(net);

Error in test (line 21)
    net = relja_simplenn_tidy(net);

'''''''''''''''''''''''''''''''''''''''''''

3.Test Code:

% Set the MATLAB paths
setup;

% ---------- Use/test our networks

% Load our network
netID= 'vd16_tokyoTM_conv5_3_vlad_preL2_intra_white';
paths= localPaths();
load( sprintf('%s%s.mat', paths.ourCNNs, netID), 'net' );

a = sprintf('%s%s.mat', paths.ourCNNs, netID);
disp (a);
net= relja_simplenn_tidy(net);      //error

4.And I am new with MATLAB.. Thank you very much!!

[zongbingwang]

thank you very much！

[Relja]

The MatConvNet team has fixed the issue I referenced above (in patch vlfeat/matconvnet@91399d4 ), so the NetVLAD code works without any modifications now.