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EURASIP Journal on Advances in Signal Processing
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Table 1 SMART notation
From:
Localizing global descriptors for content-based image retrieval
tf
df
Normalization
n
(natural): tf
_{ t,d }
n
(no): 1
n
(none): 1
l
(log): 1+log(tf
_{ t,d }
)
t
(idf): log(
N
/df
_{ t }
)
c
(cos):
\( {1}/{\sqrt {{w_{1}^{2}}+\dots + {w_{M}^{2}}}}\)
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