02_data_analysis.md

Data Analysis

TODO: Add image resolution analysis for both datasets.

Note: FashionFail is not intended to replace the Fashionpedia dataset directly. Rather, they target different domains—Fashionpedia focuses on 'in-the-wild' images showcasing multiple apparel items on a human body, whereas FashionFail concentrates on singular items commonly found in the e-commerce domain. However, FashionFail can still be utilized to assess the robustness of trained models across the e-commerce domain, making it valuable for evaluating model performance in real-world e-commerce settings.

Table: The class distribution in Fashionpedia-train and FashionFail-train.

class	Fashionpedia#	Fashionpedia%	FashionFail#	FashionFail#
shoe	46374	30.31%	441	32.81%
dress	18739	12.25%	29	2.16%
top, t-shirt, sweats.	16548	10.82%	71	5.28%
pants	12414	8.11%	53	3.94%
jacket	7833	5.12%	45	3.35%
bag, wallet	7217	4.72%	146	10.86%
shirt, blouse	6161	4.03%	57	4.24%
skirt	5046	3.30%	26	1.93%
glasses	4855	3.17%	62	4.61%
tights, stockings	4326	2.83%	39	2.90%
headband, head c.	3470	2.27%	45	3.35%
watch	3389	2.22%	99	7.37%
coat	3124	2.04%	12	0.89%
shorts	2756	1.80%	52	3.87%
sock	2582	1.69%	22	1.64%
hat	2518	1.65%	88	6.55%
glove	1385	0.91%	12	0.89%
scarf	1374	0.90%	2	0.15%
cardigan	1107	0.72%	1	0.07%
jumpsuit	922	0.60%	16	1.19%
vest	719	0.47%	23	1.71%
umbrella	135	0.09%	3	0.22%
TOTAL	152994	100%	1344	100%

Comparison with Fashionpedia

Fashionpedia(FP) has the following splits (with number of images);
Train (45,623), Validation (1,158), and Test (2,044).
FashionFail(FF) has the following splits (with number of images);
Train (1,344), Validation (150), and Test (1,001).

The following table shows the number of samples in each split for each class. For example, FF-train contains 57 samples of shirt, blouse class. As FF has exactly 1 annotation per image, this means there are 57 images (out of 1344) of shirt, blouse class inside FF-train. On the contrary, FP has many annotations per image — FP-val has a total of 4481 annotations for 1158 images.

	Class / Split	FF-train	FF-val	FF-test	FP-train⬇	FP-val
23	shoe	441	49	328	46374	1566
10	dress	29	3	22	18739	508
1	top,t-shirt,sweats	71	8	53	16548	477
6	pants	53	6	40	12414	314
4	jacket	45	5	34	7833	183
24	bag, wallet	146	16	109	7217	214
0	shirt, blouse	57	6	42	6161	102
8	skirt	26	3	20	5046	162
13	glasses	62	7	46	4855	130
21	tights, stockings	39	4	29	4326	122
15	headband,head c.	45	5	33	3470	109
18	watch	99	11	73	3389	84
9	coat	12	1	8	3124	104
7	shorts	52	6	39	2756	106
22	sock	22	3	17	2582	87
14	hat	88	10	65	2518	74
17	glove	12	2	10	1385	31
25	scarf	2	0	1	1374	48
3	cardigan	1	0	1	1107	12
11	jumpsuit	16	2	12	922	21
5	vest	23	3	18	719	22
26	umbrella	3	0	1	135	5
	TOTAL	1344	150	1001	152994	4481

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