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Intro

For duplication, we look at places in code where there are 6 or more lines of code that are exactly the same.
Before duplication is calculated, the code is cleaned to remove empty lines, comments, and frequently duplicated constructs such as imports.
You should aim at having as little as possible (<5%) of duplicated code as high-level of duplication can lead to maintenance difficulties, poor factoring, and logical contradictions.

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Duplication Overall

19% duplication:

47,566 cleaned lines of cleaned code (without empty lines, comments, and frequently duplicated constructs such as imports)
9,215 duplicated lines

1,400 duplicates

Duplication per Extension

Duplication per Component (primary)

Duplication Between Components (50+ lines)

Download: SVG DOT (open online Graphviz editor)

From Component --> To Component	Duplicated Lines	File Pairs	Details
references/classification (29%) --> references/video_classification (59%)	634	3 file pairs	details...
references/segmentation (42%) --> references/video_classification (50%)	541	2 file pairs	details...
references/detection (21%) --> references/segmentation (41%)	524	4 file pairs	details...
references/classification (22%) --> references/segmentation (39%)	496	3 file pairs	details...
references/classification (22%) --> references/detection (20%)	478	3 file pairs	details...
references/detection (19%) --> references/video_classification (44%)	472	2 file pairs	details...
torchvision/models (2%) --> torchvision/prototype (1%)	344	11 file pairs	details...
references/classification (10%) --> references/optical_flow (18%)	238	2 file pairs	details...
references/optical_flow (17%) --> references/segmentation (18%)	235	2 file pairs	details...
references/optical_flow (17%) --> references/video_classification (21%)	234	2 file pairs	details...
references/detection (9%) --> references/optical_flow (17%)	232	2 file pairs	details...
torchvision/csrc (<1%) --> torchvision/ops (3%)	72	2 file pairs	details...
packaging/vs2017 (76%) --> packaging/vs2019 (76%)	60	2 file pairs	details...

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Longest Duplicates

The list of 20 longest duplicates.

See data for all 1,400 duplicates...

Size	#	Folders	Files	Lines	Code
106	x 2	references/classification references/video_classification	utils.py utils.py	36:155 (39%) 38:157 (55%)	view
83	x 2	references/classification references/segmentation	utils.py utils.py	65:155 (31%) 109:199 (36%)	view
83	x 2	references/segmentation references/video_classification	utils.py utils.py	109:199 (36%) 67:157 (43%)	view
62	x 2	references/classification references/video_classification	utils.py utils.py	190:277 (23%) 166:253 (32%)	view
58	x 2	references/classification references/optical_flow	utils.py utils.py	21:95 (21%) 18:92 (29%)	view
56	x 2	references/detection references/video_classification	utils.py utils.py	113:174 (27%) 70:131 (29%)	view
56	x 2	references/detection references/segmentation	utils.py utils.py	113:174 (27%) 112:173 (24%)	view
56	x 2	references/classification references/detection	utils.py utils.py	68:129 (21%) 113:174 (27%)	view
55	x 2	torchvision/csrc/ops/cuda torchvision/csrc/ops/cuda	cu ps_roi_align_kernel.cu roi_align_kernel.cu	1:68 (14%) 1:68 (13%)	view
54	x 2	references/classification references/segmentation	utils.py utils.py	201:277 (20%) 218:294 (24%)	view
54	x 2	references/segmentation references/video_classification	utils.py utils.py	218:294 (24%) 177:253 (28%)	view
54	x 2	torchvision/csrc/ops/cuda torchvision/csrc/ops/cuda	cu ps_roi_align_kernel.cu roi_align_kernel.cu	139:201 (13%) 142:204 (13%)	view
48	x 2	references/optical_flow references/video_classification	utils.py utils.py	33:92 (24%) 38:97 (25%)	view
43	x 2	torchvision/csrc/ops/cpu torchvision/csrc/ops/cpu	ps_roi_align_kernel.cpp roi_align_kernel.cpp	143:207 (13%) 110:174 (14%)	view
42	x 2	references/detection references/segmentation	utils.py utils.py	11:67 (20%) 11:67 (18%)	view
42	x 2	references/detection references/video_classification	utils.py utils.py	11:67 (20%) 11:67 (22%)	view
42	x 2	references/segmentation references/video_classification	utils.py utils.py	11:67 (18%) 11:67 (22%)	view
40	x 2	references/detection references/segmentation	utils.py utils.py	207:267 (19%) 218:278 (17%)	view
40	x 2	references/detection references/video_classification	utils.py utils.py	207:267 (19%) 177:237 (21%)	view
40	x 2	references/classification references/detection	utils.py utils.py	201:261 (15%) 207:267 (19%)	view

Duplicated Units

The list of top 20 duplicated units.

See data for all 28 unit duplicates...

Size	#	Folders	Files	Lines	Code
55	x 3	references/classification references/segmentation references/video_classification	utils.py utils.py utils.py	0:0 0:0 0:0	view
41	x 2	torchvision/csrc/ops/cpu torchvision/csrc/ops/cpu	ps_roi_align_kernel.cpp roi_align_kernel.cpp	144:200 111:167	view
21	x 3	references/classification references/segmentation references/video_classification	utils.py utils.py utils.py	0:0 0:0 0:0	view
15	x 2	torchvision/datasets torchvision/datasets	ucf101.py hmdb51.py	0:0 0:0	view
14	x 2	references/segmentation references/detection	coco_utils.py coco_utils.py	0:0 0:0	view
11	x 2	torchvision/csrc/ops torchvision/csrc/ops	ps_roi_pool.cpp roi_pool.cpp	10:21 10:21	view
11	x 2	torchvision/csrc/ops torchvision/csrc/ops	interpolate_aa.cpp interpolate_aa.cpp	36:47 49:60	view
11	x 2	torchvision/csrc/ops/cpu torchvision/csrc/ops/cpu	interpolate_aa_kernels.cpp interpolate_aa_kernels.cpp	620:631 633:644	view
10	x 2	torchvision/csrc/ops torchvision/csrc/ops	interpolate_aa.cpp interpolate_aa.cpp	10:20 22:32	view
9	x 2	torchvision/models torchvision/models	resnet.py resnet.py	0:0 0:0	view
11	x 3	references/segmentation references/video_classification references/detection	utils.py utils.py utils.py	0:0 0:0 0:0	view
8	x 2	gallery gallery	plot_visualization_utils.py plot_repurposing_annotations.py	0:0 0:0	view
8	x 2	torchvision/models torchvision/ops	mnasnet.py misc.py	0:0 0:0	view
8	x 2	torchvision/ops torchvision/models	misc.py mnasnet.py	0:0 0:0	view
7	x 2	references/classification references/classification	transforms.py transforms.py	0:0 0:0	view
7	x 2	references/classification references/classification	transforms.py transforms.py	0:0 0:0	view
10	x 4	references/classification references/segmentation references/video_classification references/detection	utils.py utils.py utils.py utils.py	0:0 0:0 0:0 0:0	view
7	x 2	torchvision/datasets torchvision/datasets	stl10.py cifar.py	0:0 0:0	view
7	x 5	torchvision/datasets torchvision/datasets torchvision/datasets torchvision/datasets torchvision/datasets	food101.py flowers102.py dtd.py fgvc_aircraft.py sun397.py	0:0 0:0 0:0 0:0 0:0	view
7	x 2	torchvision/datasets torchvision/datasets	lfw.py lfw.py	0:0 0:0	view