Issue on DVSGesture Dataset

[thanhdat1902]

I am trying to download the DVSGesture dataset but it produces a runtime error.

Downloading https://figshare.com/ndownloader/files/38022171 to ./data/DVSGesture/ibmGestureTrain.tar.gz
0it [00:00, ?it/s]
Traceback (most recent call last):
File "/projects/bddu/dnguyen15/event-anonymize/AnonyNoise/data.py", line 2, in
tonic.datasets.DVSGesture(save_to= './data', train = True)
File "/u/dnguyen15/miniconda3/envs/EvPReId_wo_Id/lib/python3.9/site-packages/tonic/datasets/dvsgesture.py", line 87, in init
self.download()
File "/u/dnguyen15/miniconda3/envs/EvPReId_wo_Id/lib/python3.9/site-packages/tonic/dataset.py", line 34, in download
download_and_extract_archive(
File "/u/dnguyen15/miniconda3/envs/EvPReId_wo_Id/lib/python3.9/site-packages/tonic/download_utils.py", line 320, in download_and_extract_archive
download_url(url, download_root, filename, md5)
File "/u/dnguyen15/miniconda3/envs/EvPReId_wo_Id/lib/python3.9/site-packages/tonic/download_utils.py", line 144, in download_url
raise RuntimeError("File not found or corrupted.")
RuntimeError: File not found or corrupted.

[ej159]

I have run into this problem as well when running on Google Colab, though the file is still accessible through the link (https://figshare.com/ndownloader/files/38022171). I imagine this is something to do with Figshare blocking Google (or vice versa).

There is a similar problem with tonic.datasets.ASLDVS but there the link genuinely appears to be dead, rather than just blocked.

[laurentperrinet]

in the meanwhile, I recommend using the code / link available with the snnTorch library:

https://snntorch.readthedocs.io/en/latest/examples/examples_svision/example_sv_dvsgesture.html#spikevision-datasets-dvs-gesture

(which recommends using tonic :-) )

maybe the link at https://ibm.ent.box.com/s/3hiq58ww1pbbjrinh367ykfdf60xsfm8/folder/50167556794 should be favored instead of the figshare.com one ?

[razkey23]

I found out that the figshare.com/ndownloaded.... URLs sit behind AWS WAF bot-protection and return 0 bytes for automated clients.
However the ndownloader.figshare.com/... subdomain bypasses the WAF and correctly redirects to the S3 URL

In short, if you place these assignments in your code, you will be able to download DVSGesture
tonic.datasets.DVSGesture.train_url = "https://ndownloader.figshare.com/files/38022171"
tonic.datasets.DVSGesture.test_url = "https://ndownloader.figshare.com/files/38020584"