YOLOS Coco Labels mismatch

Hey,

I’m using the transformer library YOLOS model and wanted to write my own id2label function for a quick look-up without the need of loading the model.

I assume it was trained on COCO and therefore used this class list here:

But I got a bit suspicious when Ties got classiefied as Snowboards repeatedly, so I printed the labels directly from the YOLOS config and got this list which is a bit off:

1: person
2: bicycle
3: car
4: motorcycle
5: airplane
6: bus
7: train
8: truck
9: boat
10: traffic light
11: fire hydrant
12: N/A
13: stop sign
14: parking meter
15: bench
16: bird
17: cat
18: dog
19: horse
20: sheep
21: cow
22: elephant
23: bear
24: zebra
25: giraffe
26: N/A
27: backpack
28: umbrella
29: N/A
30: N/A
31: handbag
32: tie
33: suitcase
34: frisbee
35: skis
36: snowboard
37: sports ball
38: kite
39: baseball bat
40: baseball glove
41: skateboard
42: surfboard
43: tennis racket
44: bottle
45: N/A
46: wine glass
47: cup
48: fork
49: knife
50: spoon
51: bowl
52: banana
53: apple
54: sandwich
55: orange
56: broccoli
57: carrot
58: hot dog
59: pizza
60: donut
61: cake
62: chair
63: couch
64: potted plant
65: bed
66: N/A
67: dining table
68: N/A
69: N/A
70: toilet
71: N/A
72: tv
73: laptop
74: mouse
75: remote
76: keyboard
77: cell phone
78: microwave
79: oven
80: toaster
81: sink
82: refrigerator
83: N/A
84: book
85: clock
86: vase
87: scissors
88: teddy bear
89: hair drier
90: toothbrush

Why is that and why are some indices apparently skipped (the N/As) ?
Maybe @nielsr knows an answer to that?