forestmaker: feature forest $B%b%G%k:n@.%D!<%k(B

English version

feature forest model $B$N%$%Y%s%H%U%!%$%k$r:n$k%D!<%k$G$9!%(B

forestmaker $B%b%G%kL>(B $BJ8K!%b%8%e!<%k(B derivbank $B%$%Y%s%H%U%!%$%k(B
$B%b%G%kL>(B$B3NN(%b%G%k$NL>A0(B($B9=J82r@O$N;~$K$b;H$$$^$9(B)
$BJ8K!%b%8%e!<%k(B$BJ8K!$*$h$S%$%Y%s%HCj=P(B predicate $B$,derivbank$BJ8K!3MF@$GF@$?(B derivbank (lildb $B7A<0(B)
$B%$%Y%s%H%U%!%$%k(Bunfiltered event $B$r=PNO$9$k%U%!%$%k(B ($B%F%-%9%H7A<0$^$?$O(B gz/bz $B$K$h$k05=L7A<0(B)
$B%*%W%7%g%s(B
-r $B%U%!%$%kL>(Breference distribution $B$r=PNO$9$k%U%!%$%kL>(B
-n $BogCM(B$B%$%Y%s%H$rCj=P$9$kJ8$N?t(B
-v$B%G%P%C%0MQ%a%C%;!<%8$rI=<($7$^$9!%(B
-vv$B%G%P%C%0MQ%a%C%;!<%8$r$?$/$5$sI=<($7$^$9!%(B

$B3NN(%b%G%k$NL>A0$O!$0l$D$N%$%Y%s%H%U%!%$%k$KBP$7$F0l$D3d$jEv$F$^$9!%0c(B $B$&L>A0$r3d$jEv$F$l$P!$J#?t$N%$%Y%s%H%U%!%$%k$rF1;~$KMQ$$$k$3$H$,$G$-$^(B $B$9!%Nc$($P!$(Bfeature forest model $B$N(B reference distribution $B$H$7$F(B unigram model $B$r;H$&$H$-$O!$$=$l$>$l$N%b%G%k$KBP$7$FJL$N%b%G%kL>$r3d$j(B $BEv$F$^$9!%(B

$BJ8K!$*$h$S(B derivbank $B$rF~NO$H$7$F!$(Bderivation $B$N3NN($N:GBg%(%s%H%m%T!<(B $B%b%G%k$r:n@.$9$k$?$a$N%D!<%k$G$9!%$3$N%D!<%k$G$O!$3NN(%b%G%k$N3X=,$KI,(B $BMW$J(B unfiltered event $B$r:n@.$7$^$9!%(B

unfiltered event $B$H$O!$0J2<$N$h$&$K(B // $B$G6h@Z$i$l$?%U%#!<%k%I$r;}$DJ8(B $B;zNs$G$9!%(B 

SUBJ//plays//VBZ//[npVPnp]//haag//NNP//[NP]_2//binary

$B:G8e$N%U%#!<%k%I(B(binary)$B$O$3$N%$%Y%s%H$N(B$B%+%F%4%j(B$B$rI=$7$F$$$^(B $B$9!%%+%F%4%j$O!$8e$N%9%F%C%W$G$3$N%$%Y%s%H7A<0$K%^%9%/$r$+$1$k;~$J$I$K(B $BMxMQ$7$^$9!%%+%F%4%j$,F1$8%$%Y%s%H$KBP$7$F$OF1$8%^%9%/$r$+$1$k$N$G!$(B $B%U%#!<%k%I$N?t$,F1$8$G$"$kI,MW$,$"$j$^$9!%$D$^$j!$%U%#!<%k%I$N?t$,0c$&(B $B%$%Y%s%H$r;H$$$?$$;~$O!$%+%F%4%jL>$rJ,$1$F2<$5$$!%Nc$($P!$(Bbinary $B%k!<(B $B%k$H(B unary $B%k!<%k$G$O%U%#!<%k%I$N?t$,0[$J$k$N$G!$JL!9$N%+%F%4%jL>$r;H(B $B$$$^$9!%(B

$B3F(B unfiltered event $B$O!$0lJ8$N(B derivation forest $B$r!$(Bfeature forest $B7A(B $B<0$GI=$7$?$b$N$G$9!%%H%l!<%K%s%0%G!<%?(B(derivbank)$B$N3FJ8$KBP$7$F(B derivation forest $B$r:n$kI,MW$,$"$k$?$a!$A4$F$NJ8$r9=J82r@O$7!$7k2L$N(B derivation forest $B$N3F%N!<%I$KBP$7$F3NN(%$%Y%s%H$r$C$F!$9=J82r@O$r9T$J$&$?$a$N%$%s%?%U%'!<%9$H!$3NN(%$%Y%s(B $B%H$r $B$^$:!$9=J82r@O$r9T$J$&$?$a$K$O!$(BUP $B$GDj5A$5$l$F$$$k%$%s%?%U%'!<%9(B (id_schema_binary $B$J$I(B)$B$r\$7$/$O(B$BJ8K!$N;H$$J}(B$B$d(BUP$B$N(B $B%^%K%e%"%k(B$B$r;2>H$7$F$/$@$5$$!%(B

$B$=$l$K2C$($F!$(Bsentence_to_word_lattice/2$B$H(B lexical_entry/2$B$NBe$o$j$K!$(B"mayz/forestmake.lil" $B$GDj5A$5$l$F(B $B$$$k0J2<$N%$%s%?%U%'!<%9$r

fm_derivation_to_word_lattice(+$Derivation, -$WordLattice)
$Derivationderivation
$WordLatticeword lattice (extent $B$N%j%9%H(B)
derivation $B$+$i(B word lattice $B$r:n$j$^$9!%(B
fm_lexical_entry(+$Lex, -$LexName)
$Lex$BF~NOC18l$H$=$l$K3d$jEv$F$i$l$k%F%s%W%l!<%H$NL>A0(B(lex_entry)
$LexNameLEX_NAME (lexical_entry/2 $B$NBh#20z?t(B)
$BC18l$K3d$jEv$F$k8lWC9`L\$rJV$7$^$9!%(B

$B$3$l$i$N=R8l$O!$(Bsentence_to_word_lattice/2$B$d(B lexical_entry/2$B$HA4$/F1$8$b$N$rJV$7$F$b$h$$$G$9$,!$@52r$N9=B$(B $B$,M?$($i$l$k$N$G!$$=$l$rMxMQ$9$k$3$H$b$G$-$^$9!%Nc$($P!$(B fm_lexical_entry/2$B$G$O@52r$N8lWC9`L\%F%s%W%l!<%H$NL>A0$,F~NO(B $B$H$7$FM?$($i$l$k$N$G!$@52r$N8lWC9`L\$H!$3NN(CM$N9b$$8lWC9`L\$N$_$rJV$9(B ($B$D$^$j3NN(CM$NDc$$8lWC9`L\$OB-@Z$j$9$k(B)$B$h$&$K$9$l$P!$9=J82r@O%3%9%H$,(B $B8:$k$N$G!$%$%Y%s%H%U%!%$%k$r:n$k;~4V$,@aLs$G$-$^$9!%(Bderivation forest $B$O@52r$NLZ$r4^$s$G$$$kI,MW$,$"$k$N$G@52r$N8lWC9`L\$rI,$:JV$5$J$1$l$P$J(B $B$i$J$$$3$H$KCm0U$7$F$/$@$5$$!%(B

$B$^$?!$@52r$N9=J8LZ$r:n$k$?$a$K!$0J2<$N%$%s%?%U%'!<%9$r

fm_correct_lexical_entry(+$Term, -$LexName)
$Termderivation $B$N=*C<%N!<%I(B(derivation_terminal)
$LexNameLEX_NAME (lexical_entry/2 $B$NBh#20z?t(B)
derivation $B$N=*C<%N!<%I$KBP1~$9$k8lWC9`L\$rJV$7$^$9!%(B

$Bforestmaker$B$O!$(Bderivation forest $B$N$=$l$>$l$N%N!<%I$K$D$$$F$3(B $B$l$i$N=R8l$r8F$S=P$7!$7k2L$r(B feature forest $B7A<0$G%$%Y%s%H%U%!%$%k$K=P(B $BNO$7$^$9!%(B

extract_terminal_event(+$ModelName, -$Category, +$LexName, +$Sign, +$SignPlus, -$Event)
$ModelName$B3NN(%b%G%k$NL>A0(B
$Category$B%+%F%4%jL>(B
$LexNameLEX_NAME (lexical_entry/2 $B$NBh#20z?t(B)
$Sign$B8lWC9`L\(B
$SignPlusSIGN_PLUS (reduce_sign/3 $B$NBh#30z?t(B)
$Event$B%$%Y%s%H$rI=$9J8;zNs%j%9%H(B
$B=*C<%N!<%I$N%$%Y%s%H$r
extract_unary_event(+$ModelName, -$Category, +$SchemaName, +$Dtr, +$Mother, +$SignPlus, -$Event)
$ModelName$B3NN(%b%G%k$NL>A0(B
$Category$B%+%F%4%jL>(B
$SchemaName$B%9%-!<%^$NL>A0(B
$Dtr$BL<$NAG@-9=B$(B
$Mother$B?F$NAG@-9=B$(B
$SignPlusSIGN_PLUS (reduce_sign/3 $B$NBh#30z?t(B)
$Event$B%$%Y%s%H$rI=$9J8;zNs%j%9%H(B
Unary $B%k!<%k$N%$%Y%s%H$r
extract_binary_event(+$ModelName, -$Category, +$SchemaName, +$LeftDtr, +$RightDtr, +$Mother, +$SignPlus, -$Event)
$ModelName$B3NN(%b%G%k$NL>A0(B
$Category$B%+%F%4%jL>(B
$SchemaName$B%9%-!<%^$NL>A0(B
$LeftDtr$B:8$NL<$NAG@-9=B$(B
$RightDtr$B1&$NL<$NAG@-9=B$(B
$Mother$B?F$NAG@-9=B$(B
$SignPlusSIGN_PLUS (reduce_sign/3 $B$NBh#30z?t(B)
$Event$B%$%Y%s%H$rI=$9J8;zNs%j%9%H(B
Binary $B%k!<%k$N%$%Y%s%H$r
extract_root_event(+$ModelName, -$Category, +$Sign, -$Event)
$ModelName$B3NN(%b%G%k$NL>A0(B
$Category$B%+%F%4%jL>(B
$Sign$B%k!<%H%N!<%I$NAG@-9=B$(B
$Event$B%$%Y%s%H$rI=$9J8;zNs%j%9%H(B
$B%k!<%H%N!<%I$N%$%Y%s%H$r

$B3NN(%b%G%k$NL>A0$O!$(Bforestmaker$B$NBh0l0z?t$GM?$($?$b$N$HF1$8$b(B $B$N$r;XDj$7$F$/$@$5$$!%(B

$B$=$l$>$l$N%$%s%?%U%'!<%9$K$O!$AG@-4X?t$NCM(B(integer $B$^$?$O(B float)$B$r;XDj(B $B$G$-$k7A<0$b$"$j$^$9!%:G8e$N0z?t$KAG@-4X?t$NCM$r;XDj$7$F2<$5$$!%(B

  • extract_terminal_event_feature_value/7
  • extract_unary_event_feature_value/8
  • extract_binary_event_feature_value/9
  • extract_root_event_feature_value/5

forestmaker$B$O!$(Breference distribution $B$r;H$C$?%$%Y%s%H%U%!%$(B $B%k$r:n$k$3$H$b$G$-$^$9!%(Breference distribution $B$r=PNO$9$k%U%!%$%k$NL>(B $BA0$r(B -r $B%*%W%7%g%s$G;XDj$7!$0J2<$N%$%s%?%U%'!<%9$r

reference_prob_terminal(+$ModelName, +$LexName, +$Sign, +$SignPlus, -$Prob)
$ModelName$B3NN(%b%G%k$NL>A0(B
$LexNameLEX_NAME (lexical_entry/3 $B$NBh#20z?t(B)
$Sign$B8lWC9`L\$NAG@-9=B$(B
$SignPlusSIGN_PLUS (reduce_sign/3 $B$NBh#30z?t(B)
$Prob$B=*C<%N!<%I$N(B reference probability
$B=*C<%N!<%I$N(B reference probability $B$rJV$7$^$9!%(B
reference_prob_unary(+$ModelName, +$SchemaName, +$Dtr, +$Mother, +$SignPlus, -$Prob)
$ModelName$B3NN(%b%G%k$NL>A0(B
$SchemaName$B%9%-!<%^$NL>A0(B
$Dtr$BL<$NAG@-9=B$(B
$Mother$B?F$NAG@-9=B$(B
$SignPlusSIGN_PLUS (reduce_sign/3 $B$NBh#30z?t(B)
$Probreference probability
Unary $B%k!<%k$N(B reference probability $B$rJV$7$^$9!%(B
reference_prob_binary(+$ModelName, +$SchemaName, +$LeftDtr, +$RightDtr, +$Mother, +$SignPlus, -$Prob)
$ModelName$B3NN(%b%G%k$NL>A0(B
$SchemaName$B%9%-!<%^$NL>A0(B
$LeftDtr$B:8$NL<$NAG@-9=B$(B
$RightDtr$B1&$NL<$NAG@-9=B$(B
$Mother$B?F$NAG@-9=B$(B
$SignPlusSIGN_PLUS (reduce_sign/3 $B$NBh#30z?t(B)
$Probreference probability
Binary $B%k!<%k$N(B reference probability $B$rJV$7$^$9!%(B
reference_prob_root(+$ModelName, +$Sign, -$Prob)
$ModelName$B3NN(%b%G%k$NL>A0(B
$Sign$B%k!<%H%N!<%I$NAG@-9=B$(B
$Probreference probability
$B%k!<%H%N!<%I$N(B reference probability $B$rJV$7$^$9!%(B
MAYZ$B%D!<%k%-%C%H%^%K%e%"%k(B MAYZ$B%[!<%`%Z!<%8(B $BDT0f8&5f<<(B
MIYAO Yusuke (yusuke@is.s.u-tokyo.ac.jp)