parameterize the image encoder as f

i

q

_{iq}

iq?

query feature q

i

i

_{ii}

ii?，key feature k

i

i

_{ii}

ii?
parameterize the textual encoder as

f

c

q

(

?

;

Θ

q

,

Φ

c

q

)

f_{cq}(·; Θ_q, Φ_{cq})

fcq?(?;Θq?,Φcq?)，momentum textual encoder as

f

c

k

(

?

;

Θ

k

,

Φ

i

k

)

f_{ck}(·; Θ_k, Φ_{ik})

fck?(?;Θk?,Φik?).

c

j

?

c^?_j

cj??和

c

j

?

c^star_j

cj??是different augmented examples

吐槽

第一张图字母下标被黑色背景盖住了，且作者不公布代码，不该是CVPR的“水平”