There were 220 tags used in the coding; 130 of these occurred less than 10 times each, so for our initial experiments we clustered the 220 tags into 42 larger classes. We did the clustering by removing the secondary carat-dimensions (^2,^g,^m,^r,^e,^q,^d), with 5 exceptions. The exceptions: we left qy^d (Declarative yes-no Questions) , qw^d (Declarative wh-questions) and b^m (Signal-Understanding-via-Mimic), and we folded the few examples of nn^e into ng, and ny^e into na. Then, we grouped together some tags that had very little training data; those tags that appear in the following list were grouped with other tags on the same line.

Plus is the utterance that interrupt by other speakers, see Nick Webb, Mark Hepple and Yorick Wilks, "Dialogue Act Classification Based on Intra-Utterance Features". AAAI 2005.

Only take the first tag e.g. sv;sd -> sv

Remove the parentheses e.g. qh(^q) -> qh^q

sd -> sd
b -> b
sv -> sv
qy^d -> qy^d
na -> na
sd^r -> sd
x -> x
% -> %
qo -> qo
ba -> ba
b^r -> b
qy -> qy
ny -> ny
qr -> qy
h -> h
aa -> aa
fc -> fc
ny^r -> ny
sv^t -> sv
qh -> qh
aa^r -> aa
sv^r -> sv
fc^m -> fc
o -> fo
qw -> qw
nd -> arp/nd
qw^d -> qw^d
bk -> bk
^2 -> ^2
^q -> ^q
bh -> bh
ba^r -> ba
qy^t -> qy
sd^t -> sd
qy^g -> qy
^h -> ^h
sd^m -> sd
ba^m -> ba
sd^e -> sd
sd(^q) -> sd
ad -> ad
fe -> ba
br -> br
qy^d^r -> qy
b^m -> b^m
nn -> nn
sv;sd -> sv
ar -> ar
ar^r -> ar
bf -> bf
qw^t -> qw
nn^r -> nn
qrr -> qrr
sd^c -> sd
fo -> fo
ft -> ft
qy^c -> qy
sd^e^t -> sd
ad^t -> ad
ng -> ng
sv(^q) -> sv
fp -> fp
bd -> bd
sv^e -> sv
t3 -> t3
qy^r -> qy
no -> no
^h^t -> ^h
bf^m -> bf
ng^r -> ng
qy^d^t -> qy
na^t -> na
t1 -> t1
^2^r -> ^2
cc -> oo
qy^g^t -> qy
bk^r -> bk
^g -> ^g
qo^t -> qo
fw -> fo
sd,qy^g -> sd
o^r -> fo
na^m -> na
br^m -> br
fa -> fa
sv^e^r -> sv
sv^m -> sv
sd(^q)^t -> sd
sd^2 -> sd
aa^h -> aa
aa^m -> aa
co^t -> oo
aa^t -> aa
^q^t -> ^q
h^t -> h
qw^d^t -> qw
qr^t -> qy
aa^2 -> aa
qy^2 -> qy
fx -> sv
aap -> aap/am
co -> oo
by -> fo
qy^m -> qy
qw^r -> qw
" -> sd
fc^r -> fc
na^r -> na
bh^r -> bh
ng^m -> ng
qy^h -> qy
qy^d(^q) -> qy
qy(^q) -> qy
ny^m -> ny
fp^m -> fp
ny^e -> na
qr^d -> qy
am -> aap/am
bf^g -> bf
bf^r -> bf
nn^e -> ng
qw^h -> qw
fc^t -> fc
oo -> oo
qrr^t -> qrr
bh^m -> bh
bk^m -> bk
qy^d^h -> qy
qh^h -> qh
qh^m -> qh
qrr^d -> qrr
qh^g -> qh
ar^m -> ar
nn^m -> nn
cc^t -> oo
arp -> arp/nd
qo^d -> qo
no^r -> no
qw^c -> qw
bf^2 -> bf
bc -> fo
qy^d^m -> qy
no^t -> no
o^t -> fo
aap^r -> aap/am
b^2 -> b
ny^t -> ny
sv^2 -> sv
qr(^q) -> qy
b^m^r -> b
sd;qy^d -> sd
sd;no -> sd
b^t -> b
fp^r -> fp
qo^r -> qo
qy^g^r -> qy
fa^t -> fa
h^r -> h
^2^g -> ^2
na^m^t -> na
am^r -> aap/am
ft^t -> ft
b^m^t -> b
^h^r -> ^h
^2^t -> ^2
^q^r -> ^q
sd^e^r -> sd
br^r -> br
sd^e^m -> sd
qw^g -> qw
co^c -> oo
sd^e(^q)^r -> sd
qw(^q) -> qw
bc^r -> fo
cc^r -> oo
oo^t -> oo
oo(^q) -> oo
ny^c -> ny
ny^c^r -> ny
qy^d^c -> qy
ad^r -> ad
qw^m -> qw
ad(^q) -> ad
nd^t -> arp/nd
h^m -> h
h,sd -> h
aap^m -> aap/am
aa,ar -> aa
qh(^q) -> qh
ad^c -> ad
o^c -> fo
qh^r -> qh
fo^c -> fo
bf^t -> bf
t1^t -> t1
sv^c -> sv
qy^c^r -> qy
qw^d^c -> qw
qy^g^c -> qy
qo^d^c -> qo
qh^c -> qh
ft^m -> ft
qw^r^t -> qw
b^m^g -> b
sd(^q)^r -> sd
sd,sv -> sd
sd;sv -> sd
bf(^q) -> bf
fa^r -> fa
bd^r -> bd
ng^t -> ng

INFO:Merge Act Tag:[('sd', 75368), ('b', 33424), ('sv', 27183), ('%', 13820), ('aa', 9932), ('qy', 4425), ('ba', 4263), ('x', 3129), ('ny', 2591), ('fc', 2254), ('qw',1783), ('nn', 1211), ('qy^d', 1141), ('bk', 1139), ('h', 1122), ('bf', 953), ('^q', 944), ('bh', 927), ('na', 794), ('fo', 764), ('ad', 723), ('^2', 694), ('b^m', 606), ('qo', 582), ('qh', 562), ('^h', 499), ('ar', 320), ('ng', 275), ('br', 267), ('no', 256), ('arp/nd', 206), ('fp', 198), ('qrr', 194), ('t3', 110), ('oo', 110), ('aap/am', 95), ('t1', 94), ('bd', 86), ('qw^d', 79), ('^g', 79), ('fa', 62), ('ft', 61)]
INFO:Merge Act Tag:# unique act: 42

INFO:Merge Act Tag:[('sd', 7800), ('b', 3622), ('sv', 2752), ('%', 1407), ('aa', 952), ('qy', 509), ('ba', 441), ('x', 347), ('ny', 334), ('fc', 296), ('qw', 206), ('qy^d', 141), ('bk', 133), ('nn', 128), ('h', 111), ('bh', 96), ('na', 80), ('fo', 79), ('bf', 75), ('qo', 72), ('^2', 71), ('qh', 67), ('^h', 59), ('ad', 57), ('^q', 56), ('b^m', 53), ('no', 33), ('ng', 31), ('qrr', 29), ('ar', 29), ('br', 26), ('fp', 22), ('arp/nd', 17), ('bd', 16), ('fa', 14), ('^g', 13), ('t1', 11), ('oo', 10), ('ft', 7), ('t3', 6), ('qw^d', 5), ('aap/am', 5)]
INFO:Merge Act Tag:# unique act: 42

INFO:Merge Act Tag:[('sd', 1497), ('sv', 833), ('b', 765), ('%', 369), ('aa', 213), ('x', 94), ('qy', 90), ('fc', 84), ('ba', 76), ('ny', 73), ('qw', 56), ('qy^d', 38), ('ad', 30), ('bk', 28), ('nn', 26), ('bf', 25), ('h', 23), ('bh', 21), ('b^m', 21), ('^2', 20), ('^q', 18), ('qo', 16), ('fo', 14), ('qh', 12), ('na', 10), ('br', 9),('aap/am', 7), ('ft', 7), ('^h', 7), ('no', 6), ('ng', 6), ('fp', 5), ('qrr', 4), ('ar', 3), ('arp/nd', 3), ('fa', 2), ('bd', 1), ('t1', 1), ('qw^d', 1)]
INFO:Merge Act Tag:# unique act: 39