Table 4 Result of the topic trend change after time series linear regression analysis

[Topic 1]

Moisturizing skin care

Coefficient

P-value

Durbin-Watson

Hot/Cold

2.90

.34

2.76

Neutral

[Topic 2]

Summer Jewelry

Coefficient

P-value

Durbin-Watson

Hot/Cold

− 2.54

.16

3.53

Neutral

[Topic 3]

Men's fashion & grooming

Coefficient

P-value

Durbin-Watson

Hot/Cold

1.20

.32

2.78

Neutral

[Topic 4]

Perfume and scent

Coefficient

P-value

Durbin-Watson

Hot/Cold

2.09

.04

2.41

Hot

[Topic 5]

Hairstyle & Color

Coefficient

P-value

Durbin-Watson

Hot/Cold

− .92

.25

1.69

Neutral

[Topic 6]

High-end fashion's basic item

Coefficient

P-value

Durbin-Watson

Hot/Cold

.21

.13

1.64

Neutral

[Topic 7]

Cosmetic beauty brands

Coefficient

P-value

Durbin-Watson

Hot/Cold

.28

.56

3.18

Neutral

[Topic 8]

Bags

Coefficient

P-value

Durbin-Watson

Hot/Cold

− .61

.02

2.35

Cold

[Topic 9]

FW Fashion

Coefficient

P-value

Durbin-Watson

Hot/Cold

.08

.91

1.50

Neutral

[Topic 10]

Collaboration

Coefficient

P-value

Durbin-Watson

Hot/Cold

− .17

.83

2.12

Neutral

[Topic 11]

Genderless concept models

Coefficient

P-value

Durbin-Watson

Hot/Cold

− .29

.69

2.50

Neutral

[Topic 12]

Luxury brand sunglasses

Coefficient

P-value

Durbin-Watson

Hot/Cold

− .28

.61

1.46

Neutral

[Topic 13]

Body spray

Coefficient

P-value

Durbin-Watson

Hot/Cold

.55

.66

2.86

Neutral

[Topic 14]

Pants style

Coefficient

P-value

Durbin-Watson

Hot/Cold

− .02

.96

2.60

Neutral

[Topic 15]

All-in-one skin care

Coefficient

P-value

Durbin-Watson

Hot/Cold

− 1.02

.02

2.21

Cold

[Topic 16]

Set-up suit

Coefficient

P-value

Durbin-Watson

Hot/Cold

− .21

.01

1.70

Cold

[Topic 17]

Domestic eyeglasses brand

Coefficient

P-value

Durbin-Watson

Hot/Cold

− .69

.77

3.12

Neutral

[Topic 18]

Capsule collection

Coefficient

P-value

Durbin-Watson

Hot/Cold

− 1.14

.09

2.55

Neutral