TABLE 1:

Notation reference.

Symbol	Meaning
i	session index
j	turn index
k	word index
N	number of sessions
M i	number of turns in session
K ij	number of words in turn
L	number of labels in multi-label set
C	turn context
wij	turn word sequence
w ijk	word embedding vector
h ijk	hidden state of word encoder
X ij	turn vector representation
r ij	speaker role
$X_{ij}^C$	set of turn context vectors
g ij	hidden state of turn encoder
V ij	turn context vector representation
y ij	turn label
Y ij	turn multi-label set
z i	session label
Z i	session multi-label set
s ij	sample weight
T ij	task relevance of the ijth sample